EP2020492B1 - Valve d'étranglement - Google Patents

Valve d'étranglement Download PDF

Info

Publication number
EP2020492B1
EP2020492B1 EP20080161477 EP08161477A EP2020492B1 EP 2020492 B1 EP2020492 B1 EP 2020492B1 EP 20080161477 EP20080161477 EP 20080161477 EP 08161477 A EP08161477 A EP 08161477A EP 2020492 B1 EP2020492 B1 EP 2020492B1
Authority
EP
European Patent Office
Prior art keywords
throttle
throttle valve
throttle flap
flap
actuator
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.)
Not-in-force
Application number
EP20080161477
Other languages
German (de)
English (en)
Other versions
EP2020492A1 (fr
Inventor
Jerome Migaud
Christophe Marteau
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP2020492A1 publication Critical patent/EP2020492A1/fr
Application granted granted Critical
Publication of EP2020492B1 publication Critical patent/EP2020492B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like

Definitions

  • the present invention is a throttle valve, which is installed in an air intake pipe of an internal combustion engine of a motor vehicle.
  • the object of such throttle valves is to regulate the volume of air which is to be supplied to the engine for the combustion of the fuel.
  • a disk-shaped throttle valve pivotally mounted in a throttle housing about a pivot axis, and an electric actuator that cooperates with a position sensor to control the pivotal movement of the throttle valve.
  • the flow area of the intake pipe is between zero, i. the closing position of the throttle, and a maximum value regulated.
  • An example of such a valve is shown in document US-2004/0261768.
  • the conventional throttle valves currently available on the market correspond to hyperstatic systems, which are prone to freezing up to blocking especially the bearings on which the pivot axis of the throttle valve is mounted.
  • the object of the present invention is to remedy this disadvantage.
  • a throttle valve of the above type which includes connecting means with which a mechanical decoupling can be performed, similar to a Cardan joint, between the output shaft of the actuator or control axis and the pivot axis of the throttle valve.
  • such connecting means consist of a shift linkage, which is connected in each case with the control axis and the pivot axis of the throttle valve at its outer ends by means of a ball and socket joint.
  • This decoupling of both the control axis and the pivot axis of the throttle valve is particularly advantageous because it allows to prevent the eaters of the pivot axis in the camps by compensating for any deformations due to mounting tolerances, vibrations, temperature fluctuations, etc.
  • the connecting linkage includes two spherical cavities which form the female parts of the ball joint, and whose associated male parts are respectively fixedly connected to the control axis and the pivot axis of the throttle valve.
  • the swivel axis of the throttle valve can be equipped with a substantially cylindrical drive element, on which a return spring is mounted, with which the throttle valve can be automatically returned to its closed position, without the external loads acting on them.
  • the male part of the ball-and-socket joint connected to this pivot axis can also preferably be mounted on such a drive element.
  • the actuator is connected via the connecting means directly to the throttle valve.
  • the object of the present invention is likewise to remedy this disadvantage.
  • the butterfly valve is made of a plastic element coated with an elastomer defining the sealing lips on its periphery.
  • This elastomer gives the throttle an elasticity that virtually eliminates leaks in the closed position.
  • Another advantage is the noise reduction with a quick closing of the throttle.
  • FIG. 1 is an exploded perspective view of the main elements that make up this valve
  • FIG. 2 represents the housing of the actuator
  • FIG. 3 represents the swivel axis of the throttle
  • FIGS. 4a and 4b each represent the lower and upper view of the kausschaltgestfites.
  • the throttle valve consists essentially of a disc-shaped throttle valve 1, which is mounted on a throttle housing 2, which is fixed to the inner region of the intake manifold of an internal combustion engine, and of an electric actuator, not shown in the figures, which in the interior of an in FIG. 2 Actuator housing 3 shown in more detail is installed.
  • the actuator housing 3 is attached laterally to the throttle housing 2 by means of tapping screws 4.
  • the throttle valve 1 consists of a disc-shaped plastic element which is coated with an elastomer which defines the sealing lips 5 at its periphery.
  • the throttle valve 1 is pivotally mounted about a pivot axis 6, which in FIG. 3 is shown in more detail.
  • the swinging movement of the throttle valve 1 can be controlled between a closing position in which it blocks the air supply into the intake pipe of the engine and an opening position in which the flow area is set to a maximum value this will be described in more detail below.
  • the pivot axis 6 of the throttle valve 1 is provided at its end opposite the actuator housing 3 with a substantially cylindrical drive element 7, on which a return spring 8 is mounted.
  • the pivot axis 6 and the throttle valve 1 are mounted in the interior of the throttle body 2 on the bearings 9, 9 'with a seal 10 as an intermediate piece.
  • FIGS. 1, 2 . 4a and 4b can be mechanically decoupled with a connecting linkage 11, the pivot axis 6 of the throttle valve 1 and the output shaft 12 from the actuator, which forms the control axis of this valve 1.
  • the actuator is thus connected via the connecting linkage 11 directly to the throttle without further drive units are interposed therebetween.
  • a position sensor not shown in the figures recognizes the actual angular position of the throttle valve 1 at all times and cooperates with the actuator to control the pivoting movement of this flap 1 about its pivot axis 6.
  • the connecting linkage 11 is provided at its ends with two spherical cavities 13, 14 which form the female part of a ball and socket joint.
  • the male part associated with the spherical cavity 13 is a ball and socket joint 15 mounted on a fitting 16 fixedly connected to the output shaft 12 of the actuator.
  • FIG. 3 is the spherical cavity 14 associated male part of a ball joint 17, which is mounted on the outer circumference of the drive element 7 of the pivot axis 6 of the throttle valve 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (5)

  1. Soupape d'étranglement pour le montage dans un tuyau d'aspiration d'air d'un moteur à combustion interne, comprenant un papillon (1) en forme de disque, montée de manière à pouvoir pivoter dans un boîtier d'étranglement (2) autour d'un axe de pivotement (6) dont le mouvement de pivotement permet de régler la section de flux du tube d'aspiration entre la position de fermeture du papillon (1) et une valeur maximale, comprenant un activateur électrique fonctionnant avec un capteur de position pour commander le mouvement de pivotement du papillon (1) et comprenant par ailleurs des éléments de jonction (11 ; 13, 15 ; 14, 17) au moyen desquels un découplage mécanique peut être exécuté, de manière similaire à un joint de Cardan, entre l'arbre de sortie (12) de l'activateur ou l'axe de commande et l'axe de pivotement (6) du papillon (1), et caractérisée en ce que les éléments de jonction sont constitués d'une tringlerie de commutation (11) qui est reliée respectivement à l'axe de commande (12) et à l'axe de pivotement (6) du papillon (1), au niveau de leurs extrémités extérieures, au moyen d'une articulation à tête sphérique (13, 15; 14, 17).
  2. Soupape d'étranglement selon la revendication 1, caractérisée en ce que la tringlerie de commutation et de jonction (11) comprend deux cavités (13, 14) sphériques dont les pièces sphériques (15, 17) correspondantes sont reliées de manière fixe respectivement à l'axe de commande (12) et à l'axe de pivotement (6) du papillon (1).
  3. Soupape d'étranglement selon la revendication 2, caractérisée en ce que l'axe de pivotement (6) du papillon (1) est équipé d'un élément d'entraînement (7) essentiellement cylindrique sur lequel est monté un ressort de rappel (8) au moyen duquel le papillon (1) peut être remis automatiquement dans sa position de fermeture sans faire l'objet de sollicitations extérieures.
  4. Soupape d'étranglement selon l'une des revendications 1 à 3, caractérisée en ce que l'activateur est directement relié au papillon (1) au moyen des éléments de jonction (11; 13, 15; 14, 17).
  5. Soupape d'étranglement selon l'une des revendications 1 à 4, caractérisée en ce que le papillon (1) est constitué d'un élément en plastique qui est revêtu d'un élastomère lequel définit les lèvres d'étanchéité (5) sur le pourtour du papillon.
EP20080161477 2007-07-31 2008-07-30 Valve d'étranglement Not-in-force EP2020492B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0756853A FR2919703B1 (fr) 2007-07-31 2007-07-31 Vanne d'etranglement.

Publications (2)

Publication Number Publication Date
EP2020492A1 EP2020492A1 (fr) 2009-02-04
EP2020492B1 true EP2020492B1 (fr) 2012-06-20

Family

ID=39253890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080161477 Not-in-force EP2020492B1 (fr) 2007-07-31 2008-07-30 Valve d'étranglement

Country Status (2)

Country Link
EP (1) EP2020492B1 (fr)
FR (1) FR2919703B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3038772B1 (fr) 2015-07-07 2017-08-11 Mmt Sa Actionneur electromagnetique a entrainement direct.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137454A1 (de) * 2001-08-02 2003-02-20 Siemens Ag Drosselklappenstutzen
ITBO20030033A1 (it) * 2003-01-24 2004-07-25 Magneti Marelli Powertrain Spa Valvola a farfalla servoassistita per un motore a
DE102004030036A1 (de) * 2003-06-25 2005-01-13 Honda Motor Co., Ltd. Außenbordmotor

Also Published As

Publication number Publication date
FR2919703A1 (fr) 2009-02-06
EP2020492A1 (fr) 2009-02-04
FR2919703B1 (fr) 2012-09-07

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