DE3925808A1 - Vehicle sliding sunroof, with wind deflector - has adjacent outwardly directed upwards and rearwards projections formed on deflector at its rear edge - Google Patents
Vehicle sliding sunroof, with wind deflector - has adjacent outwardly directed upwards and rearwards projections formed on deflector at its rear edgeInfo
- Publication number
- DE3925808A1 DE3925808A1 DE19893925808 DE3925808A DE3925808A1 DE 3925808 A1 DE3925808 A1 DE 3925808A1 DE 19893925808 DE19893925808 DE 19893925808 DE 3925808 A DE3925808 A DE 3925808A DE 3925808 A1 DE3925808 A1 DE 3925808A1
- Authority
- DE
- Germany
- Prior art keywords
- wind deflector
- rear edge
- sections
- deflector
- projections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
- B60J7/22—Wind deflectors for open roofs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device according to the Preamble of claim 1.
Bei einer bekannten derartigen Vorrichtung (DE-C-33 43 061) ist der Windabweiser eines Schiebe daches mit einer bürstenähnlichen Beschichtung versehen. Diese Beschichtung kann vollflächig auf der Oberseite des Windabweisers, in parallelen Streifen oder auch in Streifen, kombiniert mit auf Lücke zueinander versetzt angeordneten Beschichtungsfeldern, aufgebracht sein. Die bürstenähnliche Beschichtung kann aus Kunstfasern in einer Länge von 1 bis 2 mm hergestellt sein. Mit der bürstenähnlichen Beschichtung soll eine Strömungsver zögerung auf der Oberseite des Windabweisers und damit eine Windgeräusch- und Schwingungsminderung erreichbar sein. Der angestrebte Effekt dürfte aber nur unzuläng lich erreicht werden, denn die über die Schiebedach öffnung strömende Luft wird durch eine solche Beschich tung nur unmaßgeblich beeinflußt.In a known device of this type (DE-C-33 43 061) is the wind deflector of a slide roofs with a brush-like coating. This coating can cover the entire surface on the top of the wind deflector, in parallel strips or in Stripes combined with staggered gaps arranged coating fields, applied. The Brush-like coating can be made from synthetic fibers a length of 1 to 2 mm. With the brush-like coating is intended to be a flow ver delay on the top of the wind deflector and thus wind noise and vibration reduction can be achieved be. The desired effect is likely to be insufficient Lich can be reached because of the sunroof opening flowing air is through such a coating tion is only marginally influenced.
In der sich hinter der vorderen Randzone der Schiebe dachöffnung bei höheren Fahrgeschwindigkeiten ausbil denden Vermischungszone bzw. Scherschicht zwischen der tangential das Dach überströmenden Luft und der relativ hierzu unbewegten Luft im Innenraum des Fahrzeugs bilden sich Turbulenzen aus, die z.T. kohärent schwingen. Die turbulente, aber mit einem gewissen Anteil kohärent schwingende Luft trifft auf die hinteren Bereiche der Öffnung des Schiebedachs und erzeugt im Fahrgastinnen raum breitbandige Schwingungen, die äußerst störend sein können. Ein gewisses Spektrum der unangenehmen nieder frequenten Luftschwingungen wird gelegentlich auch als "Wummergeräusch" bezeichnet.In the slide behind the front edge Train roof opening at higher driving speeds the mixing zone or shear layer between the tangential air flowing over the roof and the relative To do this, form still air in the interior of the vehicle turbulence, which in some cases swing coherently. The turbulent but coherent to some extent vibrating air hits the back of the Opening the sunroof and created inside the passenger broadband vibrations that are extremely disruptive can. A certain range of unpleasant down Frequent vibrations of the air is also sometimes called Denoted "booming sound".
Der Erfindung liegt die Aufgabe zugrunde, die beschrie benen und für den Fahrgast unangenehmen Geräusche herabzusetzen.The invention has for its object the described level and unpleasant noises for the passenger belittling.
Diese Aufgabe wird erfindungsgemäß durch die kennzeich nenden Merkmale des Patentanspruchs 1 gelöst. Die im wesentlichen in einer quer zur Anströmrichtung liegenden Reihe nebeneinander angeordneten Vorsprünge führen dazu, daß die kohärent schwingenden Bereiche der turbulenten Scherschicht oder Vermischungszone sich nur zu einem ganz geringen Anteil ausbilden. Die turbulente Luft schicht hat in dem Bereich, in dem sie auf die hintere Schiebedachöffnung auftrifft, eine wesentlich höhere zufällige und unregelmäßige Schwingungsverteilung. Es entstehen daher sehr viel weniger, sich in den Fahrgast innenraum fortpflanzende Geräusche und Luftschwingungen.This object is inventively characterized by nenden features of claim 1 solved. The in essentially in a direction transverse to the flow direction Row of projections arranged side by side cause that the coherently vibrating areas of the turbulent Shear layer or mixing zone only become one train a very small proportion. The turbulent air layer has in the area where it is on the rear Sunroof opening hits a much higher random and irregular distribution of vibrations. It therefore arise much less in the passenger interior propagating noises and air vibrations.
Die erfindungsgemäße Maßnahme läßt sich bei Schiebe dächern sowohl an feststehenden von der Dachaußenhaut nach oben hinten ragenden Windabweisern verwirklichen als auch an solchen schwenkbaren Windabweisern, die bei geschlossenem Schiebedach unter die Dachkontur abgesenkt sind. Die mit der Erfindung vorgeschlagenen Maßnahmen zur Geräusch- und Schwingungsminderung können aber auch an anderen weitgehend tangential angeströmten Öffnungen eines Kraftfahrzeugs, beispielsweise an Fensteröff nungen, angewendet werden.The measure according to the invention can be used for sliding roofs both on fixed from the outer roof skin Realize wind deflectors protruding upwards behind as well as such swiveling wind deflectors, which at closed sunroof lowered under the roof contour are. The measures proposed by the invention for noise and vibration reduction can also at other largely tangential flow openings of a motor vehicle, for example at window openers can be applied.
Die Erfindung und weitere vorteilhafte Einzelheiten der Erfindung sind in der Zeichnung anhand eines darge stellten Ausführungsbeispiels erläutert. Es zeigenThe invention and further advantageous details of the Invention are in the drawing based on a Darge presented embodiment explained. Show it
Fig. 1 eine Schiebedachöffnung in perspektivischer Ansicht mit einem herkömmlichen Windabweiser und Fig. 1 is a sliding roof opening in a perspective view with a conventional wind deflector and
Fig. 2 eine Schiebedachöffnung, mit einem Windabweiser, der in der erfindungsgemäßen Weise abgeändert worden ist. Fig. 2 is a sunroof opening, with a wind deflector that has been modified in the manner according to the invention.
Die in Fig. 1 dargestellte Öffnung 1 wird bei einem in Richtung des Pfeiles 2 fahrenden Fahrzeug oberhalb des Öffnungsquerschnittes tangential von Luft nach hinten überströmt. Am vorderen Rand 3 der Öffnung 1 und parallel zu diesem Rand ist ein sich in Fahrzeugquer richtung erstreckender Windabweiser 4 vorgesehen. Der Windabweiser 4 befindet sich bei zurückgeschobenem Schiebedach in einer Lage, in der er nach hinten oben gerichtet ist und mit seinem hinteren Rand über die Dachkontur herausragt. Wird der (nicht dargestellte) Deckel des Schiebedachs in seine Schließlage gebracht, so ist der Windabweiser 4 um die lediglich angedeutete Schwenkachse 5 nach unten geschwenkt und liegt unterhalb der Dachkontur.The opening 1 shown in Fig. 1 is overflowed in a moving vehicle in the direction of arrow 2 above the opening cross-section of air tangentially to the rear. At the front edge 3 of the opening 1 and parallel to this edge, a wind deflector 4 extending in the vehicle transverse direction is provided. When the sunroof is pushed back, the wind deflector 4 is in a position in which it is directed upwards to the rear and with its rear edge protrudes beyond the roof contour. If the (not shown) cover of the sliding roof is brought into its closed position, the wind deflector 4 is pivoted downward about the pivot axis 5, which is only indicated, and lies below the roof contour.
Windabweiser nach Fig. 1 sind weit verbreitet und bewirken durchaus eine gewisse Geräuschminderung im Innenraum des Fahrzeugs, wenn das Schiebedach geöffnet ist.Wind deflectors according to FIG. 1 are widespread and certainly cause a certain reduction in noise in the interior of the vehicle when the sunroof is open.
Es wurde nun gefunden, daß die trotzdem noch sehr störenden Schwingungen im Fahrgastinnenraum von seit lichen kohärenten Schwingungen in der Vermischungszone herrühren, die in Fig. 1 durch die Schwingungslinien 6 angedeutet sind. Diese Schwingungen 6 bilden sich in der turbulenten Scherschicht bzw. Vermischungszone aus, die zwischen der schnellen Luftströmung oberhalb der Dach kontur und dem Fahrgastinnenraum entsteht und sich vom vorderen Rand der Öffnung 1 zum hinteren Rand hin mit einem kleinen Keilwinkel erweitert. Beim Auftreffen der Schwingungen 6 auf die hinteren Bereiche der Öffnung 1 werden noch beträchtliche, sich ins Innere des Fahrzeugs fortpflanzende Schwingungen induziert.It has now been found that the vibrations in the passenger compartment, which are still very disruptive, result from coherent vibrations in the mixing zone since they are indicated in FIG. 1 by the lines of vibration 6 . These vibrations 6 form in the turbulent shear layer or mixing zone, which is formed between the rapid air flow above the roof contour and the passenger compartment and extends from the front edge of the opening 1 to the rear edge with a small wedge angle. When the vibrations 6 strike the rear areas of the opening 1 , considerable vibrations propagating into the interior of the vehicle are also induced.
Mit der in Fig. 2 ersichtlichen Ausbildung eines Windab weisers 7 sind diese Schwingungen beträchtlich ver mindert. Wie man erkennt, hat der Windabweiser 7 eine Reihe von seitlich nebeneinander angeordneten und nach außen oben gerichteten Vorsprüngen 8, die am hinteren Rand des Windabweisers 7 ausgebildet sind.With the apparent in Fig. 2 training a wind deflector 7 , these vibrations are considerably reduced ver. As can be seen, the wind deflector 7 has a series of projections 8 which are arranged laterally next to one another and point outwards and are formed on the rear edge of the wind deflector 7 .
Die Vorsprünge 8 sind durch örtliche Ausformungen des hinteren Randes des Windabweisers 7 gebildet. Bei dem dargestellten Ausführungsbeispiel bestehen die Vor sprünge 8 aus schräg nach oben abgebogenen Abschnitten 9 des hinteren Randes des Windabweisers 7. Bei dem darge stellten Ausführungsbeispiel fluchten die zwischen den nach oben gerichteten Abschnitten 9 des Windabweisers 7 liegenden Bereiche mit der restlichen Oberfläche des Windabweisers 7. Diese Bereiche könnten aber auch etwa in der gleichen Weise wie die Abschnitte 9 nach oben nach unten abgebogen sein. Der Windabweiser wäre dann in seinem hinteren Randbereich nach Art eines sogenannten "Seiferth-Flügels" ausgebildet.The projections 8 are formed by local formations of the rear edge of the wind deflector 7 . In the illustrated embodiment, the before cracks 8 consist of obliquely upwardly bent sections 9 of the rear edge of the wind deflector 7 . In the illustrated embodiment, the regions lying between the upward-facing sections 9 of the wind deflector 7 are aligned with the remaining surface of the wind deflector 7 . However, these areas could also be bent downward in the same way as the sections 9 . The wind deflector would then be designed in the rear edge area in the manner of a so-called "Seiferth wing".
Durch die nach oben überstehenden Vorsprünge 8 wird in der schon erwähnten Vermischungszone die Ausbildung der kohärenten seitlichen Schwingungen 6 in Fig. 1 ver mieden. Es werden mehr zufällige und unregelmäßige seitliche Störströmungen generiert, wie sie durch die Linien 10 in Fig. 2 angedeutet sind. Auf diese Weise sind die durch das Auftreffen der Vermischungszone auf den hinteren Rand der Öffnung 1 erzeugten Geräusche und Schwingungen deutlich reduziert und der Komfort für die im Fahrzeug befindlichen Personen spürbar erhöht.Due to the protrusions 8 projecting upwards, the formation of the coherent lateral vibrations 6 in FIG. 1 is avoided in the mixing zone already mentioned. More random and irregular lateral interfering flows are generated, as indicated by the lines 10 in FIG. 2. In this way, the noises and vibrations generated by the impingement of the mixing zone on the rear edge of the opening 1 are significantly reduced and the comfort for the people in the vehicle is noticeably increased.
Die die Vorsprünge 8 bildenden Abschnitte 9 des Windab weisers 7 können in Richtung der Längserstreckung des Windabweisers 7 eine Breite b von 10 bis 30 mm haben, vorzugsweise sind sie etwa 50 mm breit. Weiterhin können die Abschnitte 9 einen gegenseitigen Abstand a von 10 bis 30 mm haben. Gute Ergebnisse wurden mit einem gegenseitigen Abstand a von 25 mm erreicht. Die Tiefe der Abschnitte 9 quer zur Längserstreckung des Windab weisers 7 kann zwischen 20 bis 30 mm betragen, vorzugs weise liegt sie bei 15 mm. Als zweckmäßig hat sich auch eine Höhe h von 5 mm des hinteren Randes der Abschnitte 9 von der übrigen Oberfläche des Windabweisers 7 er wiesen.The projections 8 forming portions 9 of the Windab Weiser 7 can in the direction of the longitudinal extent of the wind deflector 7 a width b of 10 to 30 mm have, preferably they are about 50 mm wide. Furthermore, the sections 9 can have a mutual distance a of 10 to 30 mm. Good results were achieved with a mutual distance a of 25 mm. The depth of the sections 9 transverse to the longitudinal extent of the wind deflector 7 can be between 20 to 30 mm, preferably, it is 15 mm. A height h of 5 mm of the rear edge of the sections 9 from the remaining surface of the wind deflector 7 has also been shown to be expedient.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893925808 DE3925808C2 (en) | 1989-08-04 | 1989-08-04 | Device for reducing noise and vibrations at openings in motor vehicles with tangential flow, in particular at sunroof openings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893925808 DE3925808C2 (en) | 1989-08-04 | 1989-08-04 | Device for reducing noise and vibrations at openings in motor vehicles with tangential flow, in particular at sunroof openings |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3925808A1 true DE3925808A1 (en) | 1991-02-07 |
DE3925808C2 DE3925808C2 (en) | 1995-10-26 |
Family
ID=6386504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893925808 Revoked DE3925808C2 (en) | 1989-08-04 | 1989-08-04 | Device for reducing noise and vibrations at openings in motor vehicles with tangential flow, in particular at sunroof openings |
Country Status (1)
Country | Link |
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DE (1) | DE3925808C2 (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4033027A1 (en) * | 1990-10-18 | 1992-04-23 | Bayerische Motoren Werke Ag | Sliding roof for private car - has wedges fitted to forward edge of roof opening to reduce low frequency noise |
DE4036540A1 (en) * | 1990-11-16 | 1992-05-21 | Bayerische Motoren Werke Ag | Motor vehicle with retractable headlamps and headlamp washers - has miniature spoilers deployable in-front of each headlamp to localise formation of eddies in slipstream |
DE4132249A1 (en) * | 1991-09-27 | 1993-04-08 | Audi Ag | Water trapping for vehicle windscreen - arrangement of strips to create two parallel U-shaped water channels |
EP0586245A1 (en) * | 1992-09-02 | 1994-03-09 | Jaguar Cars Limited | Wind deflector for vehicle sunroof |
US5340054A (en) * | 1991-02-20 | 1994-08-23 | The United States Of America As Represented By The Secretary Of The Navy | Suppressor of oscillations in airframe cavities |
DE4315093A1 (en) * | 1993-05-06 | 1994-11-10 | Bayerische Motoren Werke Ag | Front end of a motor vehicle |
DE4419798A1 (en) * | 1994-06-06 | 1995-12-07 | Goerlitz Waggonbau Gmbh | Soundproofing, esp. for rail=borne vehicles |
US5660429A (en) * | 1994-12-22 | 1997-08-26 | Webasto Karosseriesysteme Gmbh | Wind deflector arrangement for a motor vehicle roof |
US5836643A (en) * | 1995-03-24 | 1998-11-17 | Dr. Ing. H.C.F. Porsche Ag | Vehicle roof |
FR2820689A1 (en) | 2001-02-12 | 2002-08-16 | Renault | System for reducing rattling of car sun roof consists of device which produces variations in pressure of air flowing through slit in front of it with different frequency to resonant frequency of sun roof |
US6485093B2 (en) * | 2000-01-21 | 2002-11-26 | Inalfa Industries B.V. | Open roof construction for a vehicle |
DE10136922A1 (en) * | 2001-07-30 | 2003-02-20 | Webasto Vehicle Sys Int Gmbh | Wind deflector for a vehicle roof |
EP1207070A3 (en) * | 2000-11-16 | 2003-05-07 | DaimlerChrysler AG | Wind deflector for sliding roof opening of vehicle |
EP1426220A1 (en) * | 2002-12-05 | 2004-06-09 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Air guide device |
WO2004062952A1 (en) * | 2003-01-09 | 2004-07-29 | Daimlerchrysler Ag | Wind deflector for motor vehicles |
US7422274B2 (en) * | 2005-05-10 | 2008-09-09 | Cts Fahrzeug-Dachsysteme Gmbh | Roof for a motor vehicle |
FR2929576A1 (en) * | 2008-04-02 | 2009-10-09 | Alstom Transport Sa | DEVICE FOR DISTURBING THE AIR FLOW CIRCULATING UNDER THE CHASSIS OF A RAILWAY VEHICLE. |
FR2935665A1 (en) * | 2008-09-05 | 2010-03-12 | Renault Sas | Aeroacoustic profile i.e. aileron, for use in rear part or on roof of vehicle, has appendages conformed and positioned so as to reduce noise pollution due to passage of air stream on profile, where appendages are in form of triangular prism |
FR2957052A1 (en) * | 2010-03-03 | 2011-09-09 | Airbus Operations Sas | Aerodynamic device for reduction of vibrations generated from rear trap doors of front landing gear of transport aircraft, has set of individual aerodynamic elements formed to form swirl structures with controlled intensity and frequency |
US20160250911A1 (en) * | 2013-10-30 | 2016-09-01 | Nissan Motor Co., Ltd. | Deflector for sunroof apparatus |
CN108674151A (en) * | 2018-05-21 | 2018-10-19 | 上海尚宏汽车天窗有限公司 | A kind of low wind noise automotive windshield structure |
CN113879085A (en) * | 2020-07-01 | 2022-01-04 | 马自达汽车株式会社 | Upper vehicle body structure of vehicle |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19626937C2 (en) * | 1996-07-04 | 1998-05-14 | Webasto Karosseriesysteme | Device for noise reduction on a sunroof opening of a vehicle |
DE10013433C2 (en) * | 2000-03-17 | 2002-02-14 | Daimler Chrysler Ag | Lid for a roof opening of a motor vehicle |
DE102004048532B4 (en) * | 2004-10-06 | 2007-10-04 | Daimlerchrysler Ag | contraption |
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DE3343061C1 (en) * | 1983-11-29 | 1985-04-25 | Rockwell Golde Gmbh, 6000 Frankfurt | Wind deflector for sliding roofs of motor vehicles |
DE3512312A1 (en) * | 1984-04-10 | 1985-10-17 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Wind deflector arrangement |
US4703970A (en) * | 1985-09-23 | 1987-11-03 | Gorka Timothy B | Air flow controlling device |
DE3913567A1 (en) * | 1989-04-25 | 1990-10-31 | Weinsberg Karosseriewerke | Car sliding-roof wind deflector - has additional guide members sliding on and parallel to it |
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1989
- 1989-08-04 DE DE19893925808 patent/DE3925808C2/en not_active Revoked
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DE1932991U (en) * | 1962-10-19 | 1966-02-17 | Piet Kaspers | GUIDING SURFACE FOR SLIDING ROOFS OF VEHICLES. |
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Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4033027A1 (en) * | 1990-10-18 | 1992-04-23 | Bayerische Motoren Werke Ag | Sliding roof for private car - has wedges fitted to forward edge of roof opening to reduce low frequency noise |
DE4036540A1 (en) * | 1990-11-16 | 1992-05-21 | Bayerische Motoren Werke Ag | Motor vehicle with retractable headlamps and headlamp washers - has miniature spoilers deployable in-front of each headlamp to localise formation of eddies in slipstream |
US5340054A (en) * | 1991-02-20 | 1994-08-23 | The United States Of America As Represented By The Secretary Of The Navy | Suppressor of oscillations in airframe cavities |
DE4132249A1 (en) * | 1991-09-27 | 1993-04-08 | Audi Ag | Water trapping for vehicle windscreen - arrangement of strips to create two parallel U-shaped water channels |
US5431477A (en) * | 1992-09-02 | 1995-07-11 | Jaguar Cars Limited | Wind deflector for vehicle sunroof |
EP0586245A1 (en) * | 1992-09-02 | 1994-03-09 | Jaguar Cars Limited | Wind deflector for vehicle sunroof |
DE4315093A1 (en) * | 1993-05-06 | 1994-11-10 | Bayerische Motoren Werke Ag | Front end of a motor vehicle |
DE4419798A1 (en) * | 1994-06-06 | 1995-12-07 | Goerlitz Waggonbau Gmbh | Soundproofing, esp. for rail=borne vehicles |
US5660429A (en) * | 1994-12-22 | 1997-08-26 | Webasto Karosseriesysteme Gmbh | Wind deflector arrangement for a motor vehicle roof |
US5836643A (en) * | 1995-03-24 | 1998-11-17 | Dr. Ing. H.C.F. Porsche Ag | Vehicle roof |
USRE44548E1 (en) | 2000-01-21 | 2013-10-22 | Inalfa Roof Systems Group B.V. | Open roof construction for a vehicle |
US6485093B2 (en) * | 2000-01-21 | 2002-11-26 | Inalfa Industries B.V. | Open roof construction for a vehicle |
EP1207070A3 (en) * | 2000-11-16 | 2003-05-07 | DaimlerChrysler AG | Wind deflector for sliding roof opening of vehicle |
FR2820689A1 (en) | 2001-02-12 | 2002-08-16 | Renault | System for reducing rattling of car sun roof consists of device which produces variations in pressure of air flowing through slit in front of it with different frequency to resonant frequency of sun roof |
DE10136922A1 (en) * | 2001-07-30 | 2003-02-20 | Webasto Vehicle Sys Int Gmbh | Wind deflector for a vehicle roof |
EP1426220A1 (en) * | 2002-12-05 | 2004-06-09 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Air guide device |
US6945595B2 (en) | 2002-12-05 | 2005-09-20 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Air guiding device |
WO2004062952A1 (en) * | 2003-01-09 | 2004-07-29 | Daimlerchrysler Ag | Wind deflector for motor vehicles |
US7422274B2 (en) * | 2005-05-10 | 2008-09-09 | Cts Fahrzeug-Dachsysteme Gmbh | Roof for a motor vehicle |
FR2929576A1 (en) * | 2008-04-02 | 2009-10-09 | Alstom Transport Sa | DEVICE FOR DISTURBING THE AIR FLOW CIRCULATING UNDER THE CHASSIS OF A RAILWAY VEHICLE. |
EP2106983A3 (en) * | 2008-04-02 | 2012-02-08 | ALSTOM Transport SA | Device for disturbing the air flow circulating beneath the chassis of a railway vehicle |
CN101624058B (en) * | 2008-04-02 | 2012-07-04 | 阿尔斯通运输股份有限公司 | Device for disturbing the air flow circulating beneath the chassis of a railway vehicle |
FR2935665A1 (en) * | 2008-09-05 | 2010-03-12 | Renault Sas | Aeroacoustic profile i.e. aileron, for use in rear part or on roof of vehicle, has appendages conformed and positioned so as to reduce noise pollution due to passage of air stream on profile, where appendages are in form of triangular prism |
FR2957052A1 (en) * | 2010-03-03 | 2011-09-09 | Airbus Operations Sas | Aerodynamic device for reduction of vibrations generated from rear trap doors of front landing gear of transport aircraft, has set of individual aerodynamic elements formed to form swirl structures with controlled intensity and frequency |
US20160250911A1 (en) * | 2013-10-30 | 2016-09-01 | Nissan Motor Co., Ltd. | Deflector for sunroof apparatus |
CN108674151A (en) * | 2018-05-21 | 2018-10-19 | 上海尚宏汽车天窗有限公司 | A kind of low wind noise automotive windshield structure |
CN113879085A (en) * | 2020-07-01 | 2022-01-04 | 马自达汽车株式会社 | Upper vehicle body structure of vehicle |
EP3932711A1 (en) * | 2020-07-01 | 2022-01-05 | Mazda Motor Corporation | Upper vehicle-body structure for vehicle |
Also Published As
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DE3925808C2 (en) | 1995-10-26 |
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