Engine with variable combustion chamber

Internal-combustion engines – Precombustion and main combustion chambers in series – Plural precombustion chambers

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123292, 123276, F02B 1900

Patent

active

050691783

ABSTRACT:
An engine with a variable combustion chamber has a a first combustion chamber defined in a piston slidably disposed in a cylinder, a second combustion chamber defined in a cylinder head and communicating with the cylinder through a communication port, and a valve for opening and closing the communication port. When the engine is under low load, the valve is closed and fuel is injected into the first combustion chamber, so that the engine operates as a direct-injection-type engine. When the engine is under high load, the valve is opened and fuel is injected into the second combustion chamber, so that the engine operates as a prechamber-type engine.

REFERENCES:
patent: 4160432 (1979-07-01), Tsutsumi
patent: 4161927 (1979-07-01), Yagi et al.
patent: 4241703 (1980-12-01), Lin-Liaw
patent: 4372264 (1983-02-01), Truao
patent: 4401072 (1983-08-01), Ito et al.
patent: 4440124 (1984-04-01), Eckert
patent: 4522173 (1985-06-01), Agache
patent: 4532899 (1985-08-01), Lorts
patent: 4726331 (1988-02-01), Hoppie et al.
patent: 4745891 (1988-05-01), Cola
patent: 4854281 (1989-08-01), Marayama et al.

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