Precise double-cone pressure-stabilizing EGR valve

Abstract

The utility model discloses a precision double taper face steady voltage EGR valve relates to EGR valve technical field, solves the problem that existing device leakproofness is low and use's stability is low, adopts the following scheme: the inside fixed mounting of valve body has two groups of position opposite valve seat, this precision double taper face steady voltage EGR valve is through the setting of sealing groove and taper groove, and the cylinder can drive two groups of push rod to move, and the push rod drives sealing cone to extend into the taper groove, and the sealing plate is attached with sealing groove, thereby carries out double sealing to the passage, and two groups of valve seat can improve the sealing effect more, prevents the air leakage of one group of valve seat and influences leakproofness, and simultaneously through the setting of pressure sensor and air inlet pipe, when sealing to valve seat, the pressure sensor senses the air pressure between two groups of valve seat is low, then opens the air inlet pipe through solenoid valve, and the gas on the throttle valve enters into the valve body through the air inlet pipe, guarantees the stability of the air pressure between two sides of valve seat, improves its use stability and effect.

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