JPS6334325U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a system diagram of an engine with a pressure wave supercharger according to an embodiment of the present invention, Fig. 2 is a system diagram of an engine with a pressure wave supercharger of a conventional structure, and Fig. 3 is a diagram of the operating area of the bypass valve. , FIG. 4 is a noise level characteristic diagram. 1...Engine body, 2...Pressure wave supercharger, 3
...Intake passage, 4...Exhaust passage, 5...Intake bypass passage, 6...Exhaust bypass passage, 7, 8...
Volume expansion chamber, 9, 10...opening, 21...rotor, 22...rotor housing, 23...air casing, 24...gas casing, 31...air cleaner, 33...air element, 41...exhaust Side silencer, 50, 54...Bypass valve, 51...
...Check valve, 52...Shutter valve, 55...
solenoid.

Claims (1)

[Scope of utility model registration request] A rotor having a large number of small chambers arranged circumferentially that are open on both axial end faces is rotatably fitted into a rotor housing, and gas passages that can communicate with the small chambers are formed at both axial ends of the rotor housing. Connecting the air casing to the intake passage of the engine and the gas casing to the exhaust passage of the engine, respectively, in a pressure wave supercharger comprising a casing and a gas casing forming a gas passage that can communicate with the small chamber, respectively, Further, a bypass passage for bypassing the pressure wave supercharger is formed in at least the intake passage and the exhaust passage, and a bypass valve is provided in the bypass passage for opening the bypass passage in a specific operating region of the engine. In the pressure wave supercharged engine, a volume expansion chamber is formed in the bypass passage, and the bypass valve is arranged at a position on the intake downstream side or exhaust upstream side of the volume expansion chamber in the bypass passage. The engine features a pressure wave supercharger.