CN102267551A - High-efficient screw propeller - Google Patents

High-efficient screw propeller Download PDF

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Publication number
CN102267551A
CN102267551A CN2011101250138A CN201110125013A CN102267551A CN 102267551 A CN102267551 A CN 102267551A CN 2011101250138 A CN2011101250138 A CN 2011101250138A CN 201110125013 A CN201110125013 A CN 201110125013A CN 102267551 A CN102267551 A CN 102267551A
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groove
recess
turbulent flow
stirred tank
fluid
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CN2011101250138A
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Chinese (zh)
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李仕清
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Individual
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Individual
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Priority to CN2011101250138A priority Critical patent/CN102267551A/en
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Abstract

The invention provides a high-efficient screw propeller which has the characteristics of high fuel availability and obvious energy-saving effect. The invention relates to blade thrust surfaces of screw propellers of various naval vessels, ships, submarines and helicopters. The high-efficient screw propeller is characterized in that a notch is formed on a front-end stressed side on a blade of the screw propeller along a rotation direction, wherein a turbulent notch is formed by the notch under the turbulence effect caused by the flowing fluid. The turbulence is characterized in that 1) the turbulence is opened backward and is extended or ladder-shaped extended on a blade thrust surface, thereby forming a turbulence slot or a ladder-shaped turbulence slot; 2) a gradually amplified or ladder-shaped gradually-amplified turbulence slot is distributed on the blade thrust surface, thereby forming the turbulence slot or the ladder-shaped turbulence slot; 3) a gradually-reduced opened, sealed or ladder-shaped turbulence slot is distributed on the blade thrust surface, thereby forming the turbulence slot or the ladder-shaped turbulence slot; and 4) a ridge-shaped raised wing, which is raised along the central line of the turbulence slot close to the center of the notch and is bent toward the lower parts of two side walls, is arranged at the bottom of the turbulence slot.

Description

A kind of high-performance airscrew
Technical field:
The present invention relates to a kind of high-performance airscrew, this high-performance airscrew is used for various warships, ship, submarine, and the screw propeller of helicopter.
Background technology:
At present, various warships, ship, submarine, and the bearing surface of the blade of the screw propeller of helicopter etc. all adopts single plane or curved surface, this kind structural drag is big, resistance of failure is poor, especially the power that consumes or waste when high-speed motion is very big, according to present principle of dynamics, the needs that can't adapt to the hyper-speed motion, the maximum point that its suffered resistance wave transmits resistance on the screw propeller of high-speed motion when swiftly passing object is single structure is on outer ledge and form the resistance body of a stressed maximum, therefore suffered destructive force is also maximum, have only the transferring structure of resistance is broken, just can effectively reduce the swiftly passing object resistance by changing force way, improve the efficient and the speed of the screw propeller of high speed revolution.
Summary of the invention:
The present invention is exactly in view of the above-mentioned problems and proposes, and is purpose so that a kind of later-model high-performance airscrew technology to be provided, this kind high-performance airscrew technical efficiency height, and resistance is little, and noise is low, and energy-saving effect is remarkable, and the destructive force of mechanical equipment is declined to a great extent.
In order to achieve the above object, the present invention adopts following technical proposals:
Technical scheme 1:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening and is provided with backward on the bearing surface that at least one groove is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
Technical scheme 2:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess be opening backward the groove of stepped setting be distributed on the bearing surface of propeller blade, form at least one stair-stepping groove, fluid is subjected to cascade groove in cascade groove influence is flowed in the mode of turbulent flow and is formed turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
Technical scheme 3:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening and is provided with backward on the bearing surface that at least one groove is distributed in propeller blade, form at least one groove, fluid is subjected to groove to influence the deboost effect that can and the sidewall of groove be formed direction of flow with the mobile formation of the mode turbulent flow of turbulent flow in groove, stressed at least one stirred tank that forms of groove, be provided with in the bottom of stirred tank carinate near the recess center along the wing of stirred tank line of centers projection to the ridge of stirred tank two side bottom angled.
Preferably, the effect in that the turbulent flow recess of described high-performance airscrew technology has the resistance area with the head of various power mobile objects to decompose has effectively reduced resistance.
Preferably, at described high-performance airscrew technology stirred tank the effect that the resistance of the fluid of the stirred tank of flowing through is changed into thrust is arranged.
Technical scheme 4:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the blade of the screw propeller of helicopter is arranged to the setting of projection backward along the rear side on stressed limit.
Preferably, on the stressed limit of described high-performance airscrew, become the setting of projection backward, strengthened the anti-fracture and the bend resistance intensity of propeller blade by increasing along the rear side on stressed limit.
Technical scheme 5
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is that opening extends back or amplifies gradually on the bearing surface that shape is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
Preferably, the mode of fluid through out-of-date formation turbulent flow arranged in the groove of described high-performance airscrew technology, groove can be described as stirred tank.
Technical scheme 6
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening to be dwindled gradually backward and the outlet shape is arranged or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
Technical scheme 7:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is the stepped backward extension of opening or amplifies the bearing surface that shape is distributed in propeller blade gradually, form at least one stair-stepping groove, fluid is influenced by cascade groove in cascade groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
Technical scheme 8:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is stepped backward the dwindling gradually of opening to be had the outlet shape or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one stair-stepping groove, fluid is influenced by cascade groove in cascade groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
Technical scheme 9
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is the stepped backward extension of opening or amplifies gradually on the bearing surface that shape is distributed in propeller blade, form at least one groove or stair-stepping groove, fluid can and form the deboost effect of direction of flow to the sidewall of groove or cascade groove with the mobile formation of the mode turbulent flow of turbulent flow in groove or stair-stepping groove, form at least one stirred tank or stair-stepping stirred tank, be provided with in the bottom of stirred tank or stepped stirred tank from indent along the wing of stirred tank line of centers ridge to the ridge of stirred tank two side bottom angled.
Technical scheme 10:
A kind of high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is stepped backward the dwindling gradually of opening to be had the outlet shape or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one stair-stepping groove, fluid is subjected to groove to influence the deboost effect that can and the sidewall of groove be formed direction of flow with the mobile formation of the mode turbulent flow of turbulent flow in groove, stressed at least one the stair-stepping stirred tank that forms of groove or stair-stepping groove is provided with from indent along the wing of stirred tank line of centers projection to the ridge of stirred tank two side bottom angled in the bottom of stirred tank.
Preferably, influenced by groove structure to be form with turbulent flow to flow, groove shape becomes stirred tank, and recess forms the turbulent flow recess.
Preferably, in described high-performance airscrew technology, various warships, ship, submarine, and the bearing surface of the blade of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, being opening is provided with at least one groove backward and is distributed on the front end bearing surface, stressed at least one stirred tank that forms of groove, the carinate wing that the bottom of stirred tank is provided with near the downward-sloping ridge in the both sides of the eye stirred tank line of centers projection recess center, make fluid along the double side acting of the carinate wing near the downward-sloping ridge in the both sides of the eye stirred tank line of centers projection recess center in the two side of stirred tank.
Preferably, at described various warships, ship, submarine, and the blade of the screw propeller of helicopter is to meet on plane or curved surface or helical surface or the composite surface to carry out foregoing structure on the bearing surface of fluid.
Beneficial effect:
By the high-performance airscrew technology at various warships, ship, submarine, and the vane stress face of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, being opening is provided with at least one groove backward and is distributed on the front end bearing surface, stressed at least one stirred tank that forms of groove, make fluid through the flow field time, more power more be acted on various warships, ship, submarine, and on the vane stress face of the screw propeller of helicopter, be the stepped backward extension of opening or amplify shape gradually or dwindle gradually the groove that exports shape or be contracted to closed is gradually arranged, the stressed stirred tank that forms of groove, and the cell wall direction of stirred tank towards fluid oppositely, act on the effect that pushes away before blade produces oppositely, the resistance of fluid is transformed for various warships, ship, submarine, and the blade of the screw propeller of helicopter power forward, the structure of stepped stirred tank then is that fluid more energy reverse direction flow is acted on groove, therefore fluid turbulent can further be utilized and do thrust, the carinate wing of the projection that is provided with in the bottom of groove more turns to side stirred tank cell wall from the recess center with the power of fluid, therefore get access to maximum energy, thereby improved efficient greatly, saved the energy, but stirred tank also actv. will be controlled in the stirred tank by the fluid of blade effect, minimizing is to the transmission in the blade outside, reduced noise, strengthened the acting of screw propeller, this technology is effective utilization of the turbulence energy of convection cell.
Description of drawings:
Technical scheme of the present invention and advantage will describe in conjunction with width of cloth figure, in this accompanying drawing:
Fig. 1 is the scheme drawing of a kind of high-performance airscrew technology of first embodiment of the present invention.
Fig. 2 is the scheme drawing of a kind of high-performance airscrew technology of second embodiment of the present invention.
The specific embodiment:
Explain the preferred implementation of high-performance airscrew of the present invention below in conjunction with accompanying drawing, at embodiment 1-mainly with various warships, ship, submarine, and on the vane stress face of the screw propeller of helicopter the turbulent flow recess is set, or the turbulent flow recess extends back and is formed with stirred tank, or stair-stepping stirred tank, being provided with near the wing of the ridge that has a down dip to both sides of the eye stirred tank line of centers projection recess center in the bottom of stirred tank is that example describes.
Embodiment 1:
A kind of high-performance airscrew technology, as shown in Figure 1, the high-performance airscrew technology of first embodiment of the present invention, the screw propeller 1 that relates to warship, ship, submarine, blade 2, the turbulent flow recess 4 that is provided with of one is that opening extends back or amplify shape gradually is distributed on the bearing surface 5 on the resistance limit 3, is formed with at least one stirred tank 6, and what protruded backward on resistance limit 3 is provided with 7.
According to said structure, because at various warships, ship, submarine, and the vane stress face of the screw propeller of helicopter is provided with at least one turbulent flow recess 4, various warships have been changed, ship, submarine, and the force way of the vane stress face on the go of the screw propeller of helicopter, actv. has decomposed the resistance of bearing surface, turbulent flow recess 4 extends back and is formed with stirred tank 6, stirred tank 6 makes flow through stirred tank 6 of fluid form the thrust to the sidewall of stirred tank 6, so thereby the contained transmission of energy direction of the fluid that has changed the stirred tank 6 of flowing through is compared with screw propeller 1 in the past, this stirred tank 6 has the effect that the skin resistance of screw propeller is decomposed, and drag stream can be disperseed fast and then formed antagonistic force to the sidewall of stirred tank 6 along stirred tank 6, the effect of power is changed into resistance in realization, thereby reduce the friction drag of screw propeller 1, decomposed the formed resistance body of resistance wave, the resistance that screw propeller 1 is subjected to reduces, simultaneously, the sidewall of stirred tank 6 is for amplifying shape backward, suffered impulsive force is changed into along the inclined-plane of stirred tank 6 thrust forward thereby has been improved efficient, saved the energy, become the setting of projection backward by increasing, strengthened the anti-fracture and the bend resistance intensity of propeller blade along the rear side on stressed limit.
Embodiment 2:
A kind of high-performance airscrew technology, as shown in Figure 2, the high-performance airscrew technology of second embodiment of the present invention, the screw propeller 1 that relates to warship, ship, submarine, blade 2, the turbulent flow recess 4 that is provided with of one is opening and dwindles gradually backward and the outlet shape is arranged or be contracted to closed gradually and be distributed on the bearing surface 5 on the resistance limit 3, is formed with at least one stirred tank 6, and what protruded backward on resistance limit 3 is provided with 7.
According to said structure, because at aircraft, submarine, guided missile, the bearing surface of torpedo and various bullet weapon or various aircraft or various mobile objects etc. is provided with at least one turbulent flow recess 5, changed aircraft, submarine, guided missile, the force way of the front end bearing surface on the go of torpedo and various bullet weapon or various aircraft or various mobile objects, actv. has decomposed the resistance of bearing surface, turbulent flow recess 5 extends back and is formed with stirred tank 6, stirred tank 6 makes flow through stirred tank 6 of fluid form the thrust to the sidewall of stirred tank 6, so thereby the contained transmission of energy direction of the fluid that has changed the stirred tank 6 of flowing through is compared with screw propeller 1 in the past, this stirred tank 6 has the effect that the skin resistance of resistance limit 3 and bearing surface 5 is decomposed, and resistance can be disperseed fast and then forms antagonistic force to the sidewall of stirred tank 6 along stirred tank 6, the effect of power is changed into resistance in realization, thereby reduce the friction drag of screw propeller 1, decomposed the formed resistance body of resistance wave, by destroying the structure of resistance body, the resistance that screw propeller 1 is subjected to reduces, simultaneously, the sidewall of stirred tank 6 is for amplifying shape backward, suffered resistance is changed into along the inclined-plane of stirred tank 6 thrust forward thereby has been improved efficient, has saved the energy.
More than the turbulent flow recess 5 that adopted of the high-performance airscrew technology of all embodiments, stirred tank 6, the mode of the carinate wing near the downward-sloping ridge in the both sides of the eye stirred tank line of centers projection recess center is at various warships, ship, submarine, and is provided with on the bearing surface of the blade head of the screw propeller of helicopter and all can effectively increases acting and reach the effect of raising the efficiency.
Though more than to have the high-performance airscrew technology at various warships, ship, submarine, and the blade of the screw propeller of helicopter is provided with reflective concave or turbulent flow recess, and be formed with stirred tank or ring-type stirred tank or the carinate wing near the downward-sloping ridge in the both sides of the eye stirred tank line of centers projection recess center is that example is illustrated, but turbulent flow recess 5 of the present invention and stirred tank 6 or reflective concave or ring-type stirred tank can be implemented on more various aircraft or bullet weapon, can adopt the structure of embodiment and the combination of other various ways as described in above-mentioned structure.
Above-described preferred implementation is illustrative and not restrictive, under the situation of the essential characteristic that does not break away from purport of the present invention, the present invention can also otherwise implement and specialize, scope of the present invention is limited by claim, and all distortion in the claim limited range all fall within the scope of the present invention.

Claims (10)

1. high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening and is provided with backward on the bearing surface that at least one groove is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
2. high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess be opening backward the groove of stepped setting be distributed on the bearing surface of propeller blade, form at least one stair-stepping groove, fluid is subjected to cascade groove in cascade groove influence is flowed in the mode of turbulent flow and is formed turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
3. high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening and is provided with backward on the bearing surface that at least one groove is distributed in propeller blade, form at least one groove, fluid is subjected to groove to influence the deboost effect that can and the sidewall of groove be formed direction of flow with the mobile formation of the mode turbulent flow of turbulent flow in groove, stressed at least one stirred tank that forms of groove, be provided with in the bottom of stirred tank carinate near the recess center along the wing of stirred tank line of centers projection to the ridge of stirred tank two side bottom angled.
4. high-performance airscrew, comprise various warships, ship, submarine, and the front end of the hand of rotation of the blade of the screw propeller of helicopter has at least one stressed limit, with at least one bearing surface, it is characterized in that, various warships, ship, submarine, and the blade of the screw propeller of helicopter is arranged to the setting of projection backward along the rear side on stressed limit.
5. high-performance airscrew as claimed in claim 1, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is that opening extends back or amplifies gradually on the bearing surface that shape is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
6. high-performance airscrew as claimed in claim 1, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is opening to be dwindled gradually backward and the outlet shape is arranged or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one groove, fluid is influenced by groove in groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of groove be formed the deboost effect of direction of flow, stressed at least one stirred tank that forms of groove.
7. as claim 1,2,4 described high-performance airscrews, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is the stepped backward extension of opening or amplifies the bearing surface that shape is distributed in propeller blade gradually, form at least one stair-stepping groove, fluid is influenced by cascade groove in cascade groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
8. as claim 1,2,5 described high-performance airscrews, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is stepped backward the dwindling gradually of opening to be had the outlet shape or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one stair-stepping groove, fluid is influenced by cascade groove in cascade groove to flow in the mode of turbulent flow to form turbulent flow and can and the sidewall of cascade groove be formed the deboost effect of direction of flow, stressed at least one the stair-stepping stirred tank that forms of stair-stepping groove.
9. as claim 1,2,3,4,6: described high-performance airscrew, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is the stepped backward extension of opening or amplifies gradually on the bearing surface that shape is distributed in propeller blade, form at least one groove or stair-stepping groove, fluid can and form the deboost effect of direction of flow to the sidewall of groove or cascade groove with the mobile formation of the mode turbulent flow of turbulent flow in groove or stair-stepping groove, form at least one stirred tank or stair-stepping stirred tank, be provided with in the bottom of stirred tank or stepped stirred tank from indent along the wing of stirred tank line of centers ridge to the ridge of stirred tank two side bottom angled.
10. as claim 1,2,3,5,7 described high-performance airscrews, it is characterized in that, described various warship, ship, submarine, and the vane stress limit of the screw propeller of helicopter is provided with at least one recess, recess flows through the turbulization effect through fluid and forms the turbulent flow recess, the turbulent flow recess is stepped backward the dwindling gradually of opening to be had the outlet shape or is contracted to gradually on the bearing surface that closed is distributed in propeller blade, form at least one stair-stepping groove, fluid can and form the deboost effect of direction of flow to the sidewall of groove with the mobile formation of the mode turbulent flow of turbulent flow in groove, stressed at least one the stair-stepping stirred tank that forms of groove or stair-stepping groove is provided with from indent along the wing of stirred tank line of centers projection to the ridge of stirred tank two side bottom angled in the bottom of stirred tank.
CN2011101250138A 2011-05-06 2011-05-06 High-efficient screw propeller Pending CN102267551A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102673758A (en) * 2012-05-15 2012-09-19 哈尔滨工程大学 Propeller with convex and concave guide edge
CN103342161A (en) * 2013-07-29 2013-10-09 褚智堂 High-speed propeller

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US262349A (en) * 1882-08-08 Assigfob of two
RU2067062C1 (en) * 1991-04-01 1996-09-27 Петр Алексеевич Макаров Propeller
CN1334218A (en) * 2000-07-13 2002-02-06 韩玮 High-performance propeller
KR100625829B1 (en) * 2004-09-06 2006-09-20 김동원 A cheonggukjang containing green tee extract and the manufacturing method therof
US20080232973A1 (en) * 2005-07-21 2008-09-25 Saint Louis University Propeller blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US262349A (en) * 1882-08-08 Assigfob of two
RU2067062C1 (en) * 1991-04-01 1996-09-27 Петр Алексеевич Макаров Propeller
CN1334218A (en) * 2000-07-13 2002-02-06 韩玮 High-performance propeller
KR100625829B1 (en) * 2004-09-06 2006-09-20 김동원 A cheonggukjang containing green tee extract and the manufacturing method therof
US20080232973A1 (en) * 2005-07-21 2008-09-25 Saint Louis University Propeller blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102673758A (en) * 2012-05-15 2012-09-19 哈尔滨工程大学 Propeller with convex and concave guide edge
CN102673758B (en) * 2012-05-15 2015-06-17 哈尔滨工程大学 Propeller with convex and concave guide edge
CN103342161A (en) * 2013-07-29 2013-10-09 褚智堂 High-speed propeller

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