EGR valve and waste gas recirculation system
An EGR valve and exhaust gas technology, applied in the direction of exhaust gas recirculation, charging system, engine components, etc., can solve the problems of EGR valve damage, hindering the opening of the valve plate 3', increasing the load of the motor and the risk of motor damage, etc., to achieve control Fast response, extended service life, and avoid the effect of easy damage
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[0033] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0034] This embodiment provides an EGR valve, such as image 3 As shown, the EGR valve includes a valve body 1, an air outlet pipe 2 arranged on the outer wall of the valve body 1, a main valve seat 3 arranged at one end of the valve body 1, a main valve plate 4 arranged inside the main valve seat 3, and an auxiliary valve The valve plate 52 and the drive assembly 6, the auxiliary valve plate 52 can slide sealingly along the valve body 1, the auxiliary valve plate 52 divides the valve body 1 into the first working chamber and the second working chamber, the first working chamber and the main valve The seat 3 is connected, and the second working chamber is formed between the auxiliary valve plate 52 and the main valve plate 4; at the same time, the output ends of the drive assembly 6 are respectively...
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