| 摘要 |
The invention provides a 4-stroke reciprocating piston engine having a supercharging piston, which ensures dynamic balance of the engine with only a simple construction and achieves high output. The 4-stroke reciprocating piston engine having a supercharging piston includes: two pairs of bidirectional reciprocating power pistons mounted at both ends of the crankshaft having three crank pins in series at the same phase; a pair of bidirectional reciprocating supercharging pistons mounted at the middle crank pin at a phase different by 180° with respect to the two pairs of bidirectional reciprocating power pistons; a cylinder head on which an air intake opening portion for the bidirectional reciprocating supercharging piston cylinder, a pressurized air intake opening portion from the bidirectional reciprocating supercharging piston cylinder, a pressurized air intake opening portion into the respective bidirectional power piston cylinders, and an exhaust opening portion from the respective bidirectional reciprocating piston cylinders are formed.
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