Internal combustion engine

Details Internal combustion engine Internal combustion engine

1993-12-20

1995-04-18

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123569, F02D 1304

Patent

active

054069181

ABSTRACT:
In addition to an engine-braking master piston, an exhaust-gas-recirculation master piston is provided to pressurize an oil having been supplied to an oil passage and open an exhaust valve in a suction stroke. A directional control valve selectively switches transmission of hydraulic pressures produced by the engine-braking and exhaust-gas-recirculation master pistons so that the exhaust valve adjacent to a top dead center in a compression stroke is opened to discharge the compressed air. Exhaust gas recirculation can be effected while braking action by a braking force produced in the compression stroke is ensured.

REFERENCES:
patent: 4722315 (1988-02-01), Pickel
patent: 4984554 (1991-01-01), Ariga et al.
patent: 5123397 (1992-06-01), Richeson
patent: 5146890 (1992-09-01), Gobert et al.
patent: 5203830 (1993-04-01), Faletti et al.
patent: 5226401 (1993-07-01), Clarke et al.
Article Titled Development of Auxiliary Engine Braking Device for a Heavy Duty Engine with 4-Valve System, in Jidosha Gijutsu, vol 46, No. 10, 1992 with Abridged Translation.

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