DE4306705C1 - Air choke for vehicle heating or air conditioning unit - Google Patents

Air choke for vehicle heating or air conditioning unit

Info

Publication number
DE4306705C1
DE4306705C1 DE19934306705 DE4306705A DE4306705C1 DE 4306705 C1 DE4306705 C1 DE 4306705C1 DE 19934306705 DE19934306705 DE 19934306705 DE 4306705 A DE4306705 A DE 4306705A DE 4306705 C1 DE4306705 C1 DE 4306705C1
Authority
DE
Germany
Prior art keywords
air
choke
air flap
flap
conditioning unit
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.)
Expired - Fee Related
Application number
DE19934306705
Other languages
German (de)
Inventor
Stefan Dipl Ing Frech
Martin Dipl Ing Ganser
Wolfgang Dipl Ing Volz
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
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Priority to DE19934306705 priority Critical patent/DE4306705C1/en
Application granted granted Critical
Publication of DE4306705C1 publication Critical patent/DE4306705C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Abstract

The choke closes and controls the air supply in an air channel for a heating or air conditioning unit in a vehicle. In its closed position the choke has a circumferential clearance relative to the channel wall. The thickness at the edge of the choke (2) is equal to that of the axle (4) locating the choke flap, with the choke open. This amounts to a clearance (6) of at least 8 mm with the choke closed. The edge region of the choke comprises an angle section (5) at close to 90 deg. to the choke face.

Description

Die Erfindung betrifft eine Luftklappe zum Verschließen und kontrollierten Freigeben des Strömungsquerschnittes eines Luftführungskanales einer Heiz- oder Klimaanlage in einem Fahrzeug, wobei die Luftklappe in ihrer Schließstellung randseitig einen umlaufenden Spalt gegenüber der Kanalwand aufweist.The invention relates to an air flap for closing and controlled release of the flow cross section of a Air duct of a heating or air conditioning system in one Vehicle with the air flap in its closed position a circumferential gap on the edge opposite the duct wall having.

Derartige Luftklappen, bei denen aus Ersparnisgründen unter Inkaufnahme einer gewissen Leckrate bei geschlossener Luftklappe auf eine randseitig umlaufende Dichtung verzichtet wird, sind bekannt, jedoch entspricht dabei die Spaltbreite, wie dies z. B. die DE-PS 10 10 844 zeigt, der Stärke der Luftklappe, so daß die Leckluftrate relativ groß ist und die Gefahr besteht, daß bei großen Strömungsgeschwindigkeiten im Spalt es zu lästigen Pfeifgeräuschen kommt.Such air flaps, where for reasons of saving Acceptance of a certain leak rate when the air flap is closed a circumferential seal is dispensed with known, but corresponds to the gap width, as this z. B. DE-PS 10 10 844 shows the strength of the air flap, so that the Leakage air rate is relatively large and there is a risk that at high flow velocities in the gap to annoy it Whistling comes.

Es ist Aufgabe der Erfindung, unter Vermeidung von Pfeifgeräuschen die Leckluftrate zu senken, ohne daß der Strömungsquerschnitt bei geöffneter Luftklappe merklich verringert wird.It is an object of the invention while avoiding Whistling noises to lower the air leak rate without the Flow cross-section noticeable when the air flap is open is reduced.

Diese Aufgabe wird bei einer Luftklappe nach dem Oberbegriff des Patentanspruches 1 durch dessen kennzeichnende Merkmale gelöst. In gleichem Maß wie die Dicke im Randbereich wächst, erhöht sich auch die Tiefe des Spaltes und es entsteht ein Druckgefälle, durch das die Strömungsgeschwindigkeit der Leckluft herabgesetzt wird. Die Leckluftmenge wird somit verringert und Pfeifgeräusche treten nicht mehr auf. This task is performed with an air damper according to the generic term of Claim 1 solved by the characterizing features. As the thickness grows in the edge area increases also the depth of the gap and there is a pressure drop, by which the flow velocity of the leakage air is reduced becomes. The amount of leakage air is thus reduced and whistling noises no longer occur.  

Bei einem bevorzugten Ausführungsbeispiel der Erfindung wird der Randbereich durch einen angenähert rechtwinklig zur Klappenebene an deren äußerer Umgrenzung angebrachten Steg gebildet.In a preferred embodiment of the invention, the Edge area by an approximately perpendicular to the flap level at the outer boundary attached bridge formed.

Der Gegenstand der Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The subject matter of the invention is described below with the aid of a the drawing shown embodiment closer explained.

In einem Luftführungskanal 1 mit rechteckigem Querschnitt ist eine Luftklappe 2 angeordnet, die verdrehsicher von einer die einander gegenüberliegenden Kanalwände 3, von denen nur eine ersichtlich ist, durchdringenden Steckachse 4 aufgenommen wird. Die Luftklappe 2 ist mit einem angeformten Steg 5 versehen, dessen Höhe dem bei offener Luftklappe 2 den Strömungsquerschnitt reduzierenden Außenmaß der Steckachse 4 entspricht und wenigstens 8 mm beträgt, so daß durch den Steg 5 keine zusätzliche Querschnittsverminderung auftritt.In an air duct 1 with a rectangular cross-section, an air flap 2 is arranged, which is received in a torsion-proof manner by a through-axis 4 penetrating the opposite duct walls 3 , of which only one is visible. The louver 2 is provided with an integrally formed web 5, the height of which corresponds to the flow cross-section reducing in the open air flap 2 outer dimension of the plug-in axis 4 and at least 8 is mm, so that no additional necking occurs through the web. 5

In der dargestellten, anschlaggesicherten Schließstellung der Luftklappe 2 ist ein umlaufender Spalt 6 vorhanden, dessen Tiefe der Höhe des Steges 5 entspricht. Um dies jeweils auch im Bereich der Kanalwände 7 zu erreichen, auf die sich die Luftklappe 2 im Zuge einer Schließbewegung zubewegt, ist aus jeder dieser Wände ein Absatz 8 herausgeformt. In nicht dargestellter Weise können die Wände 7 aber auch glatt sein, wenn dafür Sorge getragen ist, daß die Schließstellung der Luftklappe 2, in der diese entgegen der Darstellung dann waagerecht ausgerichtet ist, gezielt angefahren werden kann.In the illustrated, stop-safe closed position of the air flap 2, there is a circumferential gap 6 , the depth of which corresponds to the height of the web 5 . In order to achieve this in each case in the area of the channel walls 7 , towards which the air flap 2 moves in the course of a closing movement, a shoulder 8 is formed from each of these walls. In a manner not shown, the walls 7 can also be smooth if care is taken to ensure that the closed position of the air flap 2 , in which it is then aligned horizontally, contrary to the illustration, can be approached in a targeted manner.

Claims (2)

1. Luftklappe zum Verschließen und kontrollierten Freigeben des Strömungsquerschnittes eines Luftführungskanales einer Heiz- oder Klimaanlage in einem Fahrzeug, wobei die Luftklappe in ihrer Schließstellung randseitig einen umlaufenden Spalt gegenüber der Kanalwand aufweist, dadurch gekennzeichnet, daß die Dicke im Randbereich der Luftklappe (2) dem bei geöffneter Luftklappe (2) den Strömungsquerschnitt reduzierenden Dickenmaß einer die Luftklappe (2) verdrehsicher aufnehmenden Steckachse (4) entspricht und dieses die Tiefe des Spaltes (6) bei geschlossener Luftklappe (2) bestimmende Maß mindestens 8 mm beträgt.1. Air flap for closing and controlled release of the flow cross-section of an air duct of a heating or air conditioning system in a vehicle, the air flap in its closed position having a circumferential gap opposite the duct wall, characterized in that the thickness in the edge region of the air flap ( 2 ) When the air flap ( 2 ) is open, the thickness reducing the flow cross-section corresponds to a thru-axle ( 4 ) which accommodates the air flap ( 2 ) in a manner that prevents it from rotating, and this dimension determining the depth of the gap ( 6 ) when the air flap ( 2 ) is closed is at least 8 mm. 2. Luftklappe nach Anspruch 1, dadurch gekennzeichnet, daß der Randbereich durch einen angenähert rechtwinklig zur Klappenebene an deren äußerer Umgrenzung angebrachten Steg (5) gebildet wird.2. Air flap according to claim 1, characterized in that the edge region is formed by an approximately perpendicular to the flap plane attached to the outer boundary web ( 5 ).
DE19934306705 1993-03-04 1993-03-04 Air choke for vehicle heating or air conditioning unit Expired - Fee Related DE4306705C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934306705 DE4306705C1 (en) 1993-03-04 1993-03-04 Air choke for vehicle heating or air conditioning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934306705 DE4306705C1 (en) 1993-03-04 1993-03-04 Air choke for vehicle heating or air conditioning unit

Publications (1)

Publication Number Publication Date
DE4306705C1 true DE4306705C1 (en) 1994-07-28

Family

ID=6481880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934306705 Expired - Fee Related DE4306705C1 (en) 1993-03-04 1993-03-04 Air choke for vehicle heating or air conditioning unit

Country Status (1)

Country Link
DE (1) DE4306705C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0993974A2 (en) * 1998-09-08 2000-04-19 Ford Motor Company Air handling system for automotive vehicles
FR2797810A1 (en) * 1999-08-30 2001-03-02 Valeo Climatisation Calibration of air inlet sections of vehicle air conditioning installation comprises air inlet box whose air inlet passage is adjusted by flap, box walls having angular segments accounting for flap drive mechanism tolerances
DE102005047242B4 (en) * 2005-10-01 2013-08-29 Klaus Arold Ventilation device of a motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0993974A2 (en) * 1998-09-08 2000-04-19 Ford Motor Company Air handling system for automotive vehicles
EP0993974A3 (en) * 1998-09-08 2001-12-05 Ford Motor Company Air handling system for automotive vehicles
FR2797810A1 (en) * 1999-08-30 2001-03-02 Valeo Climatisation Calibration of air inlet sections of vehicle air conditioning installation comprises air inlet box whose air inlet passage is adjusted by flap, box walls having angular segments accounting for flap drive mechanism tolerances
DE102005047242B4 (en) * 2005-10-01 2013-08-29 Klaus Arold Ventilation device of a motor vehicle

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE

8339 Ceased/non-payment of the annual fee