Open type EGR flow control device

The invention discloses an open type EGR flow control device. The open type EGR flow control device comprises a device body, a buffering cavity and a pressure stabilizing cavity are formed in the device body, the buffering cavity communicates with the pressure stabilizing cavity through a communicating pipe, the buffering cavity is provided with an EGR gas inlet, a first electric control valve is distributed in the communicating pipe, a pressure sensor is arranged in the pressure stabilizing cavity, a pressure relief pipeline and an EGR gas outlet are formed in the pressure stabilizing cavity, a second electric control valve is further arranged on the pressure relief pipeline, and a third electric control valve is further arranged on the EGR gas outlet. The open type EGR flow control device has the advantages of being accurate and simple in regulation and control, high in flexibility, high in reliability and the like. 本发明公开了一种开放式EGR流量控制装置，包括装置本体，所述装置本体内设有缓冲腔和稳压腔；所述缓冲腔和所述稳压腔之间通过连通管相连通；所述缓冲腔设有EGR进气口；所述连通管内分布有第一