A compressor volute structure for tonifying qi of turbo charger low -speed

The utility model belongs to the technical field of turbo charger, concretely relates to a compressor volute structure for tonifying qi of turbo charger low -speed, the nozzle passage who is equippedwith on and including compressor casing, be equipped with the impeller in the compressor casing, nozzle passage and the inside UNICOM of compressor casing, nozzle passage department is equipped with check valve and nozzle, and is gaseous through in nozzle and the check valve entering compressor casing. Connect the jet -propelled boosting accelerating device of polite for regarding oneself as a stranger or outsider formation low -speed, make the low speed flow of booster, pressure ratio improve, solve the problem that marine engine low -speed performance is poor. 本实用新型属于涡轮增压器技术领域，具体涉及种用于涡轮增压器低速补气的压气机蜗壳结构，包括压气机壳及其上设有的喷嘴通道，所述压气机壳内设有叶轮，所述喷嘴通道与压气机壳内部联通，所述喷嘴通道处设有单向阀和喷嘴，气体通过喷嘴和单向阀进入压气机壳内。连接外气形成低速喷气助推加速装置；使增压器低速的流量、压比提高，解决船用发动机低速性能差的问题。