DE10029097A1 - Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame - Google Patents

Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame

Info

Publication number
DE10029097A1
DE10029097A1 DE2000129097 DE10029097A DE10029097A1 DE 10029097 A1 DE10029097 A1 DE 10029097A1 DE 2000129097 DE2000129097 DE 2000129097 DE 10029097 A DE10029097 A DE 10029097A DE 10029097 A1 DE10029097 A1 DE 10029097A1
Authority
DE
Germany
Prior art keywords
air flap
molded
sealing lip
edge
patterns
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Withdrawn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
DE2000129097
Other languages
German (de)
Inventor
Juergen Becker
Dietrich Dipl-Ing Klingler
Kurt Mahninger
Reinhold Schork
Klaus Dipl-Ing Voigt
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Priority to DE2000129097 priority Critical patent/DE10029097A1/en
Publication of DE10029097A1 publication Critical patent/DE10029097A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H2001/00714—Details of seals of damper doors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

An air flap valve (10) has molded teeth or wave patterns (14) round the edge of the back that seal against matching patterns in the frame. The patterns on the air flap (12) and on the seat are accurately molded so that they are of complementary shapes and fit together exactly.

Description

Die Erfindung betrifft eine Luftklappe für eine Lüftungs-, Heizungs- oder Klimaanlage eines Kraftfahrzeuges gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an air damper for a ventilation, heating or Air conditioning system of a motor vehicle according to the preamble of Claim 1.

Aus der FR 2 550 848 ist eine Luftklappe für eine Lüftungs-, Heizungs- oder Klimaanlage eines Kraftfahrzeuges bekannt, die einen flach ausgebildeten Klappenkörper aus Polypropylen aufweist, an den randseitig eine Dichtlippe aus thermoplastischem Material angespritzt ist. Dabei besteht die Dichtlippe im wesentlichen aus einem ersten Band, das vom Rand des Klappenkörpers absteht und einem zweiten Band, das vollflächig mit einer der Flachseiten des Klappenkörpers verbunden ist. Die Dichtlippe ist damit mit dem stirnseitigen Rand sowie über das zweite Band mit wenigstens einer der Flachseiten verbunden. Dadurch soll eine ausreichend feste Verbindung zwischen der Dichtlippe und dem Klappenkörper gegeben sein. Nachteilig ist, daß für die Dichtlippe relativ viel Material verbraucht wird, da das zweite Band der Dichtlippe auf eine Flachseite des Klappenkörpers aufgebracht ist, so daß in diesem Bereich die Luftklappe zweischichtig ausgebildet ist und gegebenenfalls auch eine größere Dicke aufweist als in den übrigen Bereichen des Klappenkörpers oder der Dichtlippe.From FR 2 550 848 is an air damper for a ventilation, heating or Air conditioning system of a motor vehicle known to have a flat design Flap body made of polypropylene, on the edge of a sealing lip is molded from thermoplastic material. There is the sealing lip essentially from a first band that extends from the edge of the valve body protrudes and a second volume that covers the entire surface with one of the flat sides of the valve body is connected. The sealing lip is thus with the frontal edge and over the second band with at least one of the Flat sides connected. This is supposed to be a sufficiently firm connection be given between the sealing lip and the valve body. Disadvantageous is that a relatively large amount of material is used for the sealing lip, since the second Tape of the sealing lip is applied to a flat side of the valve body, so that the air flap is formed in two layers in this area and  possibly also has a greater thickness than in the others Areas of the valve body or the sealing lip.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, eine verbesserte Luftklappe bereitzustellen, die insbesondere kostengünstig herstellbar ist und dennoch eine feste und sichere Verbindung zwischen der Dichtlippe und deni Klappenkörper gegeben ist.Starting from this prior art, it is the object of the invention to provide an improved air damper that is particularly inexpensive is producible and yet a firm and secure connection between the Sealing lip and the valve body is given.

Diese Aufgabe wird gelöst durch eine Luftklappe mit den Merkmalen des Anspruchs 1.This task is solved by an air damper with the characteristics of Claim 1.

Erfindungsgemäß weist der Rand des Klappenkörpers Einschnitte und/oder Vorsprünge auf, und die Dichtlippe ist stirnseitig an den Rand angespritzt, wobei die Einschnitte ausgefüllt und/oder die Vorsprünge von der Dichtlippe umgriffen sind. Das aus der FR 2 550 848 bekannte zweite Band, das an sich zur Verbesserung der Verbindung zwischen Dichtlippe und Klappenkörper dient, kann nach der erfindungsgemäßen Ausgestaltung entfallen, denn durch die vorgesehenen Einschnitte und/oder Vorsprünge ist die Oberfläche des stirnseitigen Randes derart vergrößert, daß die Dichtlippe nach Aufspritzen auf den Rand des Klappenkörpers ausreichend fest mit diesem verbunden ist.According to the invention, the edge of the valve body has incisions and / or Protrusions on, and the sealing lip is molded on the front edge, wherein the incisions are filled and / or the projections from the sealing lip are encompassed. The second volume known from FR 2 550 848, the themselves to improve the connection between the sealing lip and Serves valve body can, according to the embodiment of the invention omitted, because of the incisions and / or projections provided the surface of the front edge enlarged so that the Sufficient sealing lip after spraying on the edge of the valve body is firmly connected to this.

Entsprechend einfach gestaltete und daher vorteilhafte Formen der Einschnitte und/oder Vorsprünge sind periodische Muster, wie Wellenlinien, Zick-Zack-Linien oder dergleichen.Correspondingly simple and therefore advantageous forms of Incisions and / or protrusions are periodic patterns, such as wavy lines, Zigzag lines or the like.

In einer Ausgestaltung der Erfindung weisen die Einschnitte Hinterschnitte auf, so daß zusätzlich zu der im Spritzprozeß entstehenden Verbindung zwischen Dichtlippe und Klappenkörper die Dichtlippe auch mechanisch gehalten wird. In one embodiment of the invention, the incisions have undercuts so that in addition to the connection created in the spraying process the sealing lip between the sealing lip and the valve body also mechanically is held.  

Zur Verbesserung der mechanischen Halterung, können die Vorsprünge in einer Ausgestaltung der Erfindung ankerartig ausgebildet sein.To improve the mechanical bracket, the projections can be made in an embodiment of the invention may be designed like an anchor.

Bevorzugt sollte die Dichtlippe nicht über die Flachseiten hinausstehen, so daß die Luftklappe im Bereich der Dichtlippe nicht mit einer größeren Dicke ausgebildet ist als der Klappenkörper.Preferably, the sealing lip should not protrude beyond the flat sides that the air flap is not thicker in the area of the sealing lip is designed as the valve body.

Bevorzugt ist die Luftklappe in einem Zweikomponenten-Spritzgußverfahren herstellbar.The air flap is preferably in a two-component injection molding process producible.

Im folgenden wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung im Einzelnen erläutert. In der Zeichnung . zeigen:In the following, the invention is described using exemplary embodiments Reference to the drawing explained in detail. In the drawing . demonstrate:

Fig. 1 eine erfindungsgemäße Luftklappe in der Draufsicht; Figure 1 shows an air flap according to the invention in plan view.

Fig. 2 einen Querschnitt entlang der Linie II-II aus Fig. 1; FIG. 2 shows a cross section along the line II-II from FIG. 1;

Fig. 3-6 Randabschnitte der erfindungsgemäßen Luftklappe verschiedener Ausführungsformen; Fig. 3-6 edge portions of the air flap according to the invention of different embodiments;

Eine in Fig. 1 dargestellte Luftklappe 10 einer Lüftungs-, Heizungs- oder Klimaanlage eines Kraftfahrzeuges weist einen flach ausgebildeten Klappenkörper 12 auf, der aus Kunststoff, beispielsweise Polypropylen besteht, eine Welle 13, mit der die Luftklappe 10 gelagert und verschwenkt werden kann, sowie eine Dichtlippe 14, die bevorzugt aus einem weichelastischen Material, beispielsweise einem thermoplastischen Material, besteht. An air flap 10 shown in FIG. 1 of a ventilation, heating or air conditioning system of a motor vehicle has a flat flap body 12 which is made of plastic, for example polypropylene, a shaft 13 with which the air flap 10 can be mounted and pivoted, and a sealing lip 14 , which preferably consists of a soft elastic material, for example a thermoplastic material.

Die Dichtlippe 14 ist stirnseitig stumpf an den Klappenkörper 12 angespritzt (Fig. 2), wobei der Rand 16 des Klappenkörpers 12 Einschnitte 18 und/oder Vorsprünge 20 aufweist, wobei die Einschnitte 18 von der Dichtlippe 14 ausgefüllt sind und/oder die Vorsprünge 20 von der Dichtlippe umgriffen sind.The sealing lip 14 is butt-molded onto the front of the flap body 12 ( FIG. 2), the edge 16 of the flap body 12 having incisions 18 and / or projections 20 , the incisions 18 being filled by the sealing lip 14 and / or the projections 20 by around the sealing lip.

Die Verbindungsfläche zwischen dem Klappenkörper 12 und der Dichtlippe 14 weist in einer Ausgestaltung der Erfindung ein periodisches Muster auf; das beispielsweise, wie in Fig. 1 dargestellt, in der Draufsicht rechteckförmig verlaufen kann oder wellenförmig (Fig. 3), zick-zack-förmig (Fig. 4) oder dergleichen ausgebildet sein kann.In one embodiment of the invention, the connection surface between the valve body 12 and the sealing lip 14 has a periodic pattern; that, for example, as shown in FIG. 1, can be rectangular in plan view or can be wave-shaped ( FIG. 3), zigzag-shaped ( FIG. 4) or the like.

In einer bevorzugten Ausgestaltung der Erfindung weisen die Einschnitte 18 Hinterschnitte 22 auf, wie beispielsweise in den Fig. 5 und Fig. 6 dargestellt. Dadurch ist zwischen dem Klappenkörper 12 und der Dichtlippe 14, neben der durch den Spritzprozeß entstandenen Verbindung zwischen Klappenkörper 12 und der Dichtlippe 14, zusätzlich ein mechanischer Halt gegeben.In a preferred embodiment of the invention, the incisions 18 have undercuts 22, such as in FIGS. 5 and Fig. 6. As a result, a mechanical hold is additionally provided between the valve body 12 and the sealing lip 14 , in addition to the connection between the valve body 12 and the sealing lip 14 which is produced by the injection molding process.

Die Vorsprünge 20 können auch ankerartig ausgebildet sein, wie dies in Fig. 6 dargestellt ist, in der die Enden der Vorsprünge 24 im wesentlichen eine Verdickung aufweisen.The projections 20 can also be designed in the manner of anchors, as shown in FIG. 6, in which the ends of the projections 24 essentially have a thickening.

Die Dicke D der Dichtlippe 14 entspricht im wesentlichen der Dicke des Klappenkörpers 12 (Fig. 2).The thickness D of the sealing lip 14 corresponds essentially to the thickness of the valve body 12 ( FIG. 2).

Die Luftklappe wird bevorzugt hergestellt in einem Zweikomponenten- Spritzgußverfahren, wobei in einem ersten Verfahrensschritt der Klappenkörper 12 gespritzt wird und in einem zweiten Verfahrensschritt die Dichtlippe 14 stirnseitig auf den Rand 16 des Klappenkörpers 12 aufgespritzt wird, wobei sich die Dichtlippe 14 mit dem Klappenkörper 12 entlang des Randes 16 verbindet.The air valve is preferably produced in a two-component injection molding method wherein injection molded in a first method step the valve body 12 and the sealing lip 14 is frontally sprayed onto the edge 16 of the valve body 12 in a second method step, whereby the sealing lip 14 with the valve body 12 along of the edge 16 connects.

Claims (6)

1. Luftklappe für eine Lüftungs-, Heizungs- oder Klimaanlage eines Kraftfahrzeuges mit einem flach ausgebildeten Klappenkörper (12) mit zwei Flachseiten und einem stirnseitigen, umlaufenden Rand (16), auf den eine Dichtlippe (14) aufgespritzt ist, dadurch gekennzeichnet, daß der Rand (16) Einschnitte (18) und/oder Vorsprünge (20, 24) aufweist und die Dichtlippe (14) stirnseitig an den Rand (16) angespritzt ist und die Einschnitte (18) ausfüllt und/oder die Vorsprünge (20) umgreift.1. Air flap for a ventilation, heating or air conditioning system of a motor vehicle with a flat flap body ( 12 ) with two flat sides and an end circumferential edge ( 16 ) onto which a sealing lip ( 14 ) is sprayed, characterized in that the Edge ( 16 ) has incisions ( 18 ) and / or projections ( 20 , 24 ) and the sealing lip ( 14 ) is molded on the end face to the edge ( 16 ) and fills the incisions ( 18 ) and / or engages around the projections ( 20 ). 2. Luftklappe nach Anspruch 1, dadurch gekennzeichnet, daß die Einschnitte (18) und/oder Vorsprünge (20) dem Rand (16) eine Form mit einem periodischen Muster, wie Wellenlinie, Zick-Zack-linie oder dergleichen geben.2. Air flap according to claim 1, characterized in that the incisions ( 18 ) and / or projections ( 20 ) give the edge ( 16 ) a shape with a periodic pattern, such as wavy line, zigzag line or the like. 3. Luftklappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Einschnitte (18) Hinterschnitte (22) aufweisen.3. Air flap according to one of the preceding claims, characterized in that the incisions ( 18 ) have undercuts ( 22 ). 4. Luftklappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vorsprünge (24) ankerartig ausgebildet sind.4. Air flap according to one of the preceding claims, characterized in that the projections ( 24 ) are designed like an anchor. 5. Luftklappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Dichtlippe (14) nicht über die Flachseiten hinaussteht. 5. Air flap according to one of the preceding claims, characterized in that the sealing lip ( 14 ) does not protrude beyond the flat sides. 6. Luftklappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie in einem Zweikomponenten- Spritzgußverfahren hergestellt ist.6. Air valve according to one of the preceding claims, characterized characterized that they are in a two-component Injection molding process is made.
DE2000129097 2000-06-14 2000-06-14 Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame Withdrawn DE10029097A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000129097 DE10029097A1 (en) 2000-06-14 2000-06-14 Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000129097 DE10029097A1 (en) 2000-06-14 2000-06-14 Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame

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DE10029097A1 true DE10029097A1 (en) 2001-12-20

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DE2000129097 Withdrawn DE10029097A1 (en) 2000-06-14 2000-06-14 Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580049A1 (en) * 2004-03-25 2005-09-28 Behr GmbH & Co. KG Damper door for a vehicle ventilating system
DE10337882B4 (en) * 2002-08-20 2006-07-06 Denso Corp., Kariya Air duct switching system and method of manufacturing switching doors or flaps
DE102007016184A1 (en) * 2007-04-02 2008-10-09 Behr Gmbh & Co. Kg Flap arrangement for regulating air supply over comfort nozzle of ventilating system of motor vehicle, has external side with openings and contours, and passage formed by part of openings and/or contours in closed position of flap
US7520803B2 (en) * 2003-11-04 2009-04-21 Denso Corporation Air passage opening and closing device capable of preventing uncomfortable noise
DE102010003621A1 (en) * 2010-04-01 2011-10-06 Behr Gmbh & Co. Kg Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element
US20150360536A1 (en) * 2014-06-17 2015-12-17 Toyoda Gosei Co., Ltd. Air-conditioning register
EP2990658A4 (en) * 2013-04-25 2016-12-07 Cendori Co Ltd Damper-integrated blower having improved airtightness
CN109442051A (en) * 2018-11-23 2019-03-08 东方电气集团东方锅炉股份有限公司 A kind of twayblade insulation air door with flexible sealing
CN111140864A (en) * 2019-12-27 2020-05-12 江苏京源环保股份有限公司 Rake type flue damper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3227458A1 (en) * 1981-07-28 1983-02-17 Valeo, 75017 Paris FLAP FOR CONTROLLING THE AIR FLOW IN A PIPE, IN PARTICULAR FOR THE HEATING OR AIR CONDITIONING OF A MOTOR VEHICLE
FR2550848A1 (en) * 1983-08-18 1985-02-22 Valeo Flap, especially for a heating or air-conditioning installation of a vehicle passenger compartment, and its manufacturing method.
DE8911657U1 (en) * 1989-09-29 1989-11-16 Siemens AG, 1000 Berlin und 8000 München Air damper for a heating or air conditioning system
EP0633153A1 (en) * 1993-09-22 1995-01-11 Siemens Aktiengesellschaft Process for producing a heating or air-conditioning device with a damper with a housing wall seal, in particular for a motor vehicule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3227458A1 (en) * 1981-07-28 1983-02-17 Valeo, 75017 Paris FLAP FOR CONTROLLING THE AIR FLOW IN A PIPE, IN PARTICULAR FOR THE HEATING OR AIR CONDITIONING OF A MOTOR VEHICLE
FR2550848A1 (en) * 1983-08-18 1985-02-22 Valeo Flap, especially for a heating or air-conditioning installation of a vehicle passenger compartment, and its manufacturing method.
DE8911657U1 (en) * 1989-09-29 1989-11-16 Siemens AG, 1000 Berlin und 8000 München Air damper for a heating or air conditioning system
EP0633153A1 (en) * 1993-09-22 1995-01-11 Siemens Aktiengesellschaft Process for producing a heating or air-conditioning device with a damper with a housing wall seal, in particular for a motor vehicule

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337882B4 (en) * 2002-08-20 2006-07-06 Denso Corp., Kariya Air duct switching system and method of manufacturing switching doors or flaps
US7520803B2 (en) * 2003-11-04 2009-04-21 Denso Corporation Air passage opening and closing device capable of preventing uncomfortable noise
EP1580049A1 (en) * 2004-03-25 2005-09-28 Behr GmbH & Co. KG Damper door for a vehicle ventilating system
DE102007016184A1 (en) * 2007-04-02 2008-10-09 Behr Gmbh & Co. Kg Flap arrangement for regulating air supply over comfort nozzle of ventilating system of motor vehicle, has external side with openings and contours, and passage formed by part of openings and/or contours in closed position of flap
DE102010003621A1 (en) * 2010-04-01 2011-10-06 Behr Gmbh & Co. Kg Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element
EP2990658A4 (en) * 2013-04-25 2016-12-07 Cendori Co Ltd Damper-integrated blower having improved airtightness
US20150360536A1 (en) * 2014-06-17 2015-12-17 Toyoda Gosei Co., Ltd. Air-conditioning register
US9975397B2 (en) * 2014-06-17 2018-05-22 Toyoda Gosei Co., Ltd. Air-conditioning register
CN109442051A (en) * 2018-11-23 2019-03-08 东方电气集团东方锅炉股份有限公司 A kind of twayblade insulation air door with flexible sealing
CN111140864A (en) * 2019-12-27 2020-05-12 江苏京源环保股份有限公司 Rake type flue damper

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