EP1599354A1 - Deflecteur d'air con u pour un dispositif de toit ouvrant - Google Patents

Deflecteur d'air con u pour un dispositif de toit ouvrant

Info

Publication number
EP1599354A1
EP1599354A1 EP04714734A EP04714734A EP1599354A1 EP 1599354 A1 EP1599354 A1 EP 1599354A1 EP 04714734 A EP04714734 A EP 04714734A EP 04714734 A EP04714734 A EP 04714734A EP 1599354 A1 EP1599354 A1 EP 1599354A1
Authority
EP
European Patent Office
Prior art keywords
wind deflector
sunroof
profile
roof
axis
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.)
Withdrawn
Application number
EP04714734A
Other languages
German (de)
English (en)
Inventor
Uwe Escher
Patrick HÖFER
Wolf-Dietrich Lenk
Nicolai Melchger
Ulrich Paetzold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1599354A1 publication Critical patent/EP1599354A1/fr
Withdrawn legal-status Critical Current

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

Definitions

  • the invention relates to a sunroof device for a motor vehicle with a sunroof opening provided in a vehicle roof arched transversely to a longitudinal axis of the motor vehicle, with a front and a rear sunroof edge and a wind deflector provided in the region of the front sunroof edge when the sunroof is open, the wind deflector Has at least one profile section formed with a wing profile over its entire length and the profile section is assigned a profile axis arranged transversely to the longitudinal axis of the motor vehicle.
  • the wind deflector is used to prevent airflow through the sunroof opening into the vehicle interior. Such an air flow stimulates disturbing pressure resonances, which are called booms.
  • the cause of the humming is a swirl at the front edge of the sunroof, which, depending on the opening length, the roof envelope and the overflow conditions, periodically enters the passenger compartment at the rear edge of the sunroof and thus leads to pressure fluctuations.
  • the roof opening can be closed with a panel, close to the front
  • a wind deflector is arranged at the edge of the roof opening in order to direct an air flow directed essentially rearward over the roof of the vehicle with respect to the roof opening.
  • the wind deflector is provided with an upper flow surface, which has a concave course in the vicinity of the rear edge of the wind deflector.
  • the wind deflector is arranged at a distance above the roof of the vehicle, so that an air flow channel is also created along the underside of the wind deflector.
  • the invention is based on the object of designing and arranging a wind deflector or wind deflector in such a way that the wind deflector can be aerodynamically adapted to a particular body and the air flow in the region of the side sunroof edges is also directed rearward over the rear sunroof edge.
  • the object is achieved according to the invention in that at least two profile sections are arranged rotated relative to one another by an angle about the profile axis.
  • the wind deflector thus has a twist symmetrical to its center.
  • the object is also achieved in that at least two profile sections have cross-sectional areas of different sizes and / or concave and / or convexly curved sides depending on the respective distance of the profile axis from the vehicle roof. This also enables the air flow in the area of the side To guide the sunroof edges to different distances beyond the rear sunroof edge due to different deflections.
  • the efficiency of the wind deflector is improved by the twist-shaped twisting and by the differently concave and / or convex curved sides.
  • the wind deflector allows smaller dimensions or allows larger sunroof openings, since the air flow can be directed further to the rear than in the case of known wind deflectors or wind deflectors.
  • a support device of the wind deflector has at least one support arm, which connects the wind deflector to the vehicle roof, and the support arm has at least one turbulator designed as knobs, notches or openings, which is arranged on one side of the support arm.
  • the sides of the sunroof opening are usually perpendicular to the front or rear edge of the sunroof. Since the wind deflector can be lowered inside the opening of the sunroof, it is at most as long as the opening of the sunroof is wide. In conventional wind deflectors, this means that at least part of the airflow flows through the sunroof opening into the interior, which in turn leads to a boom.
  • the aerodynamically optimized carrying device with turbulators helps to ensure coherent detachments in the side
  • the sunroof device is combined in such a way that the wind deflector has a twist and differently curved sides or a support device with turbulators.
  • the combination of a twist-like wind deflector with differently curved sides and with a carrying device with turbulators is advantageous since a flow which is deflected further towards the rear is favored in accordance with the position towards the vehicle roof.
  • the two profile sections are arranged rotated by an angle to one another depending on the respective distance of the profile axis from the vehicle roof.
  • Vehicle roofs are often arched transversely to the vehicle's longitudinal axis.
  • the spacing of the profile axis to the vehicle roof acts is characterized in directly to the flow and 'whose range over the sliding roof opening.
  • the length of the wind deflector is 5 to 25% shorter than the front sliding roof edge and the support arm at least partially has a cross-sectional profile which is designed as a wing profile.
  • a similar effect results from a wind deflector which is curved and is provided over the entire width of the sunroof opening. The flow is no longer deflected vertically upward in the edge region of the sunroof opening, but has at least one vertical component for bridging the sunroof opening.
  • turbulators are provided on at least one side or in the area of a separating flow line of the wind deflector, which are designed in the form of depressions, recesses, interference edges or elevations.
  • These turbulators which are usually attached to the lower side of the wind deflector, can be combined very well with the measures described above, which increase the scope of the flow via the sunroof opening.
  • the generated by the St ⁇ rkante or depressions' turbulence on the surface of the wind deflector has a turbulent boundary layer result, which causes in turn a better overcoming caused by the flow over a convexly curved surface pressure increase. This means that any premature pressure-driven detachment is moved downstream to the trailing edge of the profile as a so-called form-driven detachment.
  • the wind deflector can be moved from an operating position with the sunroof at least partially open by pivoting about an axis of rotation fixed to the vehicle roof into a position in which the sunroof can be at least partially or completely closed.
  • An additional translatory movement of the wind deflector and a correspondingly complex mechanism are eliminated.
  • the position of the wind deflector in relation to the support arm is fixed.
  • the axis of rotation is arranged below the plane in which the sunroof is mounted so as to be translationally movable.
  • a spring and damping element is arranged between the support arm and the vehicle roof, the spring and damping element exerting a force on the wind deflector which causes the wind deflector to move into its operating position and the operating position of the wind deflector as a function of; Air speed is adjustable or varies.
  • the support arm is biased in the active position of the wind deflector via the telescopic spring and damping element.
  • the flow deflection and the pressure distribution vary depending on the air speed at the wind deflector.
  • a correspondingly variable force component acts on the wind deflector in the direction of the vehicle roof.
  • the spring damping element is designed such that the height of the wind deflector relative to the vehicle roof is dynamically adapted to the driving speed. In all cases, the flow is directed through the sunroof opening. At low speeds, the wind deflector rises again after lowering.
  • the support arm of the wind deflector is pressed down by the sunroof when the sunroof closes.
  • the front edge of the sunroof moves above the axis of rotation of the wind deflector when the sunroof is closed on the support arms provided on both sides of the wind deflector, as a result of which they fold over or pivot in the direction of the movement of the sunroof.
  • the carrying device and the wind deflector are thus brought into a position below the sunroof, which enables the sunroof to be closed.
  • Figure 1 is a schematic profile view of a wind deflector in an active position over a sunroof opening.
  • 2 shows a schematic view of a wind deflector from the front;
  • Fig. 3 is a schematic profile view of a wind deflector
  • Fig. 4 is a schematic profile view of a wind deflector with an interference edge under a separation current line
  • Fig. 5 is a perspective view of a wind deflector over the sunroof opening.
  • a sunroof opening 2 is shown in a vehicle roof 9, in which a sunroof 1.1 is slidably mounted.
  • the sunroof opening 2 has a front 2.1 and a rear sunroof edge 2.2 in the direction of travel of the motor vehicle.
  • a wind deflector 3 is rigidly attached to a support arm 5.1 of a support device 5 above the sunroof opening 2.
  • the support arm 5.1 is rotatably supported on the vehicle roof 9 via an axis of rotation 5.4 and is supported upwards by a prestressed spring and damping element 5.3, which is also fastened to the vehicle roof 9.
  • the axis of rotation 5.4 is assigned to a bore in a receptacle of the vehicle roof 9 and is fixed in its position.
  • the axis of rotation 5.4 is not translationally displaceable.
  • the wind deflector 3 is aerofoil-shaped and has a concave upper side 3.2 and a convex lower side 3.3. 1 shows a profile section 3.1 and a profile section 3.1 '.
  • a profile axis 3.5 runs in the longitudinal direction of the wind deflector 3.
  • the profile section 3.1 is rotated by an angle ⁇ about the profile axis 3.5 with respect to a profile section 3.1 '.
  • the dimension of the angle ⁇ is dependent on the distance 4 of the profile axis 3.5 from the surface of the vehicle roof 9, which is arched transversely to a longitudinal axis of the motor vehicle.
  • a central profile section 3.1 is flatter than an outer profile section 3.1 ', or more rotated in the direction of the vehicle roof 9.
  • the wind deflector 3 thus has a twist with at least one flat and at least two steep positions and is twisted symmetrically with respect to the center of the vehicle.
  • the twist runs swirl-like over the entire length 3.4 of the wind deflector 3.
  • An incremental length section is designated as profile section 3.1, 3.1 '.
  • FIG. 3 shows a profile section 3.1 of a wind deflector 3 which has turbulators 7, 7 ', 7' 'on the lower convex side 3.3, which are designed as depressions.
  • the turbulators 7, 7 ', 7' ' create a turbulent boundary layer.
  • the wind deflector 3 has an inner profile 11 running parallel to the profile axis 3.5, which is designed as a slotted tube.
  • the inner profile 11 serves to stiffen the wind deflector 3.
  • a turbulator 8 in the form of an interfering edge is provided under a separating flow line 6 of the wind deflector 3 to reduce flow losses, which prevents a possibly premature pressure-driven separation.
  • FIG. 5 shows a wind deflector 3 according to the invention in the installed state on a motor vehicle.
  • the wind deflector 3 projects beyond the sunroof opening 2 and upwards over the vehicle roof 9.
  • the support arm 5.1 runs partially over the sunroof opening 2 and has a turbulator (not shown) on its underside 5.2.
  • the spring and damping element 5.3 is telescopic and supports the wind deflector 3 upwards.
  • the support arm 5.1 is pressed down by the sunroof 1.1 and swivels downward about the profile axis 3.5 shown in FIG.
  • the spring and damping element 5.3 moves into one another and also pivots with respect to the wind deflector 3 about an axis 5.5 on the wind deflector 3 and with respect to the vehicle roof 9 about a fixed pivot axis 5.6 on the vehicle roof 9.
  • the sunroof device 1 has a receptacle (not shown) in the region of the front sunroof edge 2.1 on, in which the wind deflector 3 and the support device 5 pivoted when the sunroof 1.1 is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de toit ouvrant (1) comprenant un déflecteur d'air (3) destiné à dévier de manière bilatérale un courant d'air sur toute l'ouverture (2) d'un toit ouvrant, pour empêcher les phénomènes de bourdonnement. L'efficacité de ce déflecteur d'air (3) est améliorée par sa configuration torsadée ou courbée : des sections transversales différentes (3.1, 3.1') du déflecteur d'air sont courbées l'une par rapport à l'autre, autour d'un axe de section transversale (3.5), selon un angle α. Le déflecteur d'air (3) est adapté à la forme concave du toit (9) du véhicule qui s'étend transversalement à l'axe longitudinal du véhicule automobile, et permet de diriger un courant d'air sur le toit (9) du véhicule, même dans la zone latérale de l'ouverture (2) du toit. C'est précisément dans la zone latérale de l'ouverture (2) d'un toit ouvrant que la distance d'un déflecteur d'air (3) traditionnel par rapport au toit d'un véhicule est supérieure à cette même distance dans la zone centrale de l'ouverture (2) du toit ouvrant.
EP04714734A 2003-03-04 2004-02-26 Deflecteur d'air con u pour un dispositif de toit ouvrant Withdrawn EP1599354A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10309395 2003-03-04
DE10309395A DE10309395B3 (de) 2003-03-04 2003-03-04 Schiebedachvorrichtung
PCT/EP2004/001899 WO2004078507A1 (fr) 2003-03-04 2004-02-26 Deflecteur d'air conçu pour un dispositif de toit ouvrant

Publications (1)

Publication Number Publication Date
EP1599354A1 true EP1599354A1 (fr) 2005-11-30

Family

ID=32945829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04714734A Withdrawn EP1599354A1 (fr) 2003-03-04 2004-02-26 Deflecteur d'air con u pour un dispositif de toit ouvrant

Country Status (5)

Country Link
US (1) US20060163916A1 (fr)
EP (1) EP1599354A1 (fr)
JP (1) JP2006519130A (fr)
DE (1) DE10309395B3 (fr)
WO (1) WO2004078507A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7356939B1 (en) 2007-04-16 2008-04-15 Honda Motor Co., Ltd. System and method for measuring wind deflector height
DE102012111915B3 (de) 2012-12-07 2014-05-15 Roof Systems Germany Gmbh Windabweiser für ein Schiebedachsystem
DE102020115689A1 (de) * 2020-06-15 2021-12-16 Röchling Automotive SE & Co. KG Diffusorvorrichtung mit schwenkbarem, Abtrieb erzeugendem Abtriebskörper im Strömungsweg und Kfz mit Diffusorvorrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790206A (en) * 1972-07-17 1974-02-05 H Backowski Vehicle stabilizing means and method
NL159045B (nl) * 1974-07-29 1979-01-15 Vermeulen Hollandia Octrooien Opendakconstructie met een luchtgeleidingsstrip voor een voertuig, alsmede luchtgeleidingsstrip voor toepassing in zo'n opendakconstructie.
DE3343061C1 (de) * 1983-11-29 1985-04-25 Rockwell Golde Gmbh, 6000 Frankfurt Windabweiser fuer Schiebedaecher von Kraftfahrzeugen
NL8500619A (nl) * 1985-03-05 1986-10-01 Vermeulen Hollandia Octrooien Luchtgeleidingsmechanisme voor een open dakconstructie, alsmede open dakconstructie uitgevoerd met dit luchtgeleidingsmechanisme.
DE3842676A1 (de) * 1988-12-19 1990-06-21 Porsche Ag Windabweiser fuer schiebedaecher, herausnehmbare dachabschnitte oder dergleichen von kraftfahrzeugen
US5538316A (en) * 1992-05-18 1996-07-23 Proprietary Technology, Inc. Air movement profiler
FR2694522B1 (fr) * 1992-08-07 1994-10-21 Heuliez Webasto Dispositif ouvrant comportant un déflecteur de vent et véhicule le comprenant.
FR2731401B1 (fr) * 1995-03-06 1997-10-10 Fior Claude Vehicule a dispositif deflecteur formant ecran d'air avant
JP2001180282A (ja) * 1999-12-27 2001-07-03 Webasto Japan Kk サンルーフ
NL1014860C2 (nl) * 2000-04-06 2001-10-09 Inalfa Ind Bv Open-dakconstructie voor een voertuig.
FR2839283B1 (fr) * 2002-05-06 2004-10-08 Webasto Systemes Carrosserie Systeme de deflecteur pour toit ouvrant de vehicule automobile, a faible epaisseur de stockage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004078507A1 *

Also Published As

Publication number Publication date
DE10309395B3 (de) 2004-10-28
WO2004078507A1 (fr) 2004-09-16
US20060163916A1 (en) 2006-07-27
JP2006519130A (ja) 2006-08-24

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