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
CN104471295BInactive Publication Date: 2017-07-28VALEO SYST DE CONTROLE MOTEUR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
VALEO SYST DE CONTROLE MOTEUR
Publication Date
2017-07-28
Estimated Expiration
Not applicable · inactive patent

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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.
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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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