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Engine control valve with improved sealing

A technology for controlling valves and engines, applied in engine components, machines/engines, lift valves, etc., to solve problems such as seal damage

Inactive Publication Date: 2017-07-28
VALEO SYST DE CONTROLE MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to provide a correct seal between the liner and the casting element, there is a risk that the seal between the liner and the petals will be damaged

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

Experimental program
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Embodiment Construction

[0032] figure 1 has been described. Elements that are common in this and other figures retain the same reference numerals.

[0033] The engine control valve according to the invention may, for example, be an EGR valve, which regulates the flow rate of gases through the circuit connecting the exhaust circuit to the intake circuit of the vehicle's internal combustion engine.

[0034] refer to figure 2 , the engine control valve according to the invention employs a petal 1 and three gaskets 2, 3, 4 intended to be inserted between two cast elements of the body of said valve. The petal 1 comprises a rotating pin 5 and a first part 6 and a second part 6, said parts 6, 7 being arranged on either side of said pin 5, in continuation of each other. The two parts 6, 7 have a small thickness and are rigidly fastened together. The general outline of the petal 1 delimited by these two parts 6 , 7 is substantially rectangular, each of said parts 6 , 7 also having a rectangular shape.

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PUM

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Abstract

The invention relates to an engine control valve comprising a body delimiting an internal duct and a rotatably movable petal (1) capable of sealing said duct in an open position allowing the flow of gas into the duct Pivoting between the closed position of the valve, the valve comprises a first system (2, 4) for sealing the duct against the outside of the body, and a second system (3), which is connected to the first The system is discrete and ensures that the valve (1) is sealed when in its closed position.

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 fitted in the gas supply circuit of a vehicle's internal combustion engine to regulate the flow rate of EGR (exhaust gas recirculation) gases in the circuit, making it possible to suck in a portion of the exhaust gases leaving the engine in order to transfer them in the Reinjection upstream of said engine. The principle of operation of this type of valve is based on the controlled rotation of a flap which is movable from a fully open position (for allowing the passage of gas) to a closed position (for blocking this passage). The subject of the invention is an engine control valve with improved sealing. Background technique [0002] The engine control valve thus has a petal which is pivotally mounted on the rotary pin. The petal may comprise a first portion and a second portion separated by the pin. When the flap is in the closed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/226F16K11/052F02M26/70
CPCF02M26/00F16K1/2263F16K11/0525F02M26/70
Inventor G.霍德布尔格
Owner VALEO SYST DE CONTROLE MOTEUR
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