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Engine control valve with improved sealing

A technology for controlling valves and engines, applied in the directions of engine components, machines/engines, lift valves, etc., can solve problems such as obstructing valve operation mechanism, obstructing contact, etc., to achieve the effect of efficient operation

Inactive Publication Date: 2016-11-30
VALEO SYST DE CONTROLE MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the case where the seal 1 is deformed, creating a hollow 4, there is the risk of forming an artificial stop which blocks the valve plate and thus prevents it from pivoting into contact with said seal 1 in order to ensure the sealing of the valve. touch
In other words, deformation of the seal 1 has the risk of hindering the operating mechanism of the valve and creating leakage passages for the passage of gas through said valve

Method used

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  • Engine control valve with improved sealing
  • Engine control valve with improved sealing
  • Engine control valve with improved sealing

Examples

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Embodiment Construction

[0029]The engine control valve according to the invention may for example be an EGR (Exhaust Gas Recirculation) valve which regulates the gas flow in a circuit connecting the exhaust line to the intake line of the internal combustion engine of the vehicle.

[0030] by reference figure 1 , the prior art seal 1 is made of rigid stainless steel and is inserted in the region of its peripheral region 2 between cast elements made of stainless steel of the body of said valve 1 . This peripheral area 2 thus comprises a certain number of holes 5 designed to be passed by the screws securing the seal 1 between said cast elements. Said seal 1 is flat, has a substantially rectangular shape and a small thickness, and has a solid part 3 outside a through-opening 6 for gas, said part 3 and said opening 6 forming said seal 1 central part of the . This opening 6 is rectangular and has been formed in the seal 1 such that its longitudinal axis is perpendicular to the longitudinal axis of the re...

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Abstract

An engine control valve having a body defining an internal conduit, comprising a valve plate (10) mounted such that it can pivot via a spindle (13) of the valve plate (10), the valve plate (10) comprises a first part (14) and is capable of pivoting between an open position allowing gas to flow along the conduit and a closed position in which the valve plate (10) and the flat seal inserted between the two elements of the valve body contact with a member (1), said seal (1) having an outer contour externally surrounding the outer contour of the valve disc (10), said seal (1) comprising an opening (6) and a solid portion (3), said second A part (14) closes the opening (6) of the seal (1) when the valve disc (10) is in the closed position, the seal (1) comprising a peripheral area formed in the solid part (3) At least one groove (7) in (2) and communicating with the opening (6).

Description

technical field [0001] The present invention relates to an engine control valve with improved sealing. A valve of this type may, for example, be placed on the gas supply line of a vehicle's internal combustion engine to regulate the flow of EGR (exhaust gas recirculation) gas in a circuit that allows a portion of the exhaust gases expelled from the engine to be extracted to Gas is reinjected upstream of the engine. The operating principle of this type of valve is based on the controlled rotation of the valve disc, which can pass from a fully open position allowing the passage of fluid into a closed position blocking the passage of this fluid. The subject of the invention is an engine control valve with improved sealing. Background technique [0002] The engine control valve thus includes a valve plate pivotally mounted on a pivot pin. The valve plate may include first and second portions separated by a pivot pin. When the valve plate is in the closed position, it is in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/226F16K11/052F16K1/20F16K27/02F02M26/70
Inventor G.霍德布尔格S.苏布里尔
Owner VALEO SYST DE CONTROLE MOTEUR
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