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Exhaust gas recirculation system containing value of the adjusting element that can be opened on the substrate

A technology of exhaust gas recirculation, regulating element, applied in the direction of exhaust gas recirculation, valve operation/release device, valve device, etc., can solve the problem of regulating element sticking to its base, etc.

Inactive Publication Date: 2008-03-05
VALEO SYST DE CONTROLE MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is therefore the risk that particles, aggregates and other residues contained in the exhaust gas will stick the adjusting element to its seat

Method used

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  • Exhaust gas recirculation system containing value of the adjusting element that can be opened on the substrate
  • Exhaust gas recirculation system containing value of the adjusting element that can be opened on the substrate
  • Exhaust gas recirculation system containing value of the adjusting element that can be opened on the substrate

Examples

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Embodiment Construction

[0017] Referring to FIG. 1 , an exhaust gas recirculation device is indicated by 1 , intended to be fitted to an internal combustion engine 2 connected on the one hand to a combustion gas discharge pipe 3 and on the other hand to an air intake pipe 4 . Such arrangements are known per se.

[0018] The recirculation device 1 comprises a cooling channel 5 and a non-cooling channel 6 , two ducts known per se and connected on the one hand to the exhaust duct 3 and on the other hand to the intake duct 4 via a valve 7 .

[0019] Referring again to FIGS. 2 to 4 , the valve 7 comprises a body 8 defining a cavity 9 closed by a flange 10 pierced with passages to which the ends of the corresponding cooling 5 and non-cooling passages 6 are connected. The flange 10 is removably mounted to the body 8 and forms the wall of the chamber 9 , for example using screws, which are not visible in the figures. The flange 10 comprises, on the same side of the chamber 9, the surface from which the firs...

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PUM

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Abstract

L'invention concerne un dispositif de recirculation de gaz d'échappement d'un moteur thermique, comprenant une vanne (7) comportant un corps (8) ayant une chambre (9) dans laquelle au moins un conduit (5, 6) débouche par un siège (11, 12) en regard duquel s'étend un élément de régu¬ lation (15) mobile entre une position d'obturation et une position de dégagement du conduit. L'élément de régulation est monté mobile entre une position appliquée contre le siège et une position décollée du siège et la vanne com¬ prend des moyens de déplacement (22, 24 ; 22, 27) de l'élé¬ ment de régulation entre sa position appliquée et sa posi¬ tion décollée, les moyens de déplacement comportant un or¬ gane de rappel (24 ; 27) de l'élément de régulation en po¬ sition décollée lorsque le moteur thermique est arrêté.

Description

technical field [0001] The invention relates to an exhaust gas recirculation device which can be used in particular to reinject part of the exhaust gas into the intake circuit of an internal combustion engine. Background technique [0002] Exhaust gas recirculation devices for internal combustion engines generally comprise a valve comprising a body having a cavity into which at least one duct opens through a base, facing said base, an adjustment element extending in its position for closing the duct and in the Move between positions where it opens the pipe. When the internal combustion engine is not operating, the regulating element is in the closed position, against its seat. There is therefore the risk that particles, aggregates and other residues contained in the exhaust gas will stick the adjusting element to its seat. It is therefore necessary to have means for moving the adjusting member to its open position with sufficient force to release the adjusting member from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F16K31/04F16K3/10F16K11/074
CPCF02M25/0772F02M25/0729F16K11/074F02M25/0773F16K3/10F16K31/043Y02T10/121F02M25/0793F02M25/0796F16K31/041F02M26/26F02M26/53F02M26/54F02M26/70F02M26/71
Inventor 劳伦特·艾伯特
Owner VALEO SYST DE CONTROLE MOTEUR