Pressure ratio control unit precise adjustment tool and application method thereof

The invention provides a pressure ratio control unit precise adjustment tool and an application method thereof. The pressure ratio control unit precise adjustment tool comprises a transmission shaft.A sleeve is arranged at the tail end of the transmission shaft. The inner diameter of the sleeve is the same as the outer diameter of a position to be adjusted. A positioning sleeve is arranged at theposition near to the front end of the sleeve. The positioning sleeve and the transmission shaft are in clearance fit. A baffle is arranged on the transmission shaft and is arranged on the end face ofthe side, facing the sleeve, of the positioning sleeve. A dial is arranged on the end face of the other side of the positioning sleeve. A pointer is arranged on the transmission shaft. The pointer makes contact with the dial. With the pressure ratio control unit precise adjustment tool and the application method thereof, in the application process of an engine, a pressure ratio control unit can be precisely adjusted, it is