Method and apparatus to accomplish exhaust air recirculation dur

Details Method and apparatus to accomplish exhaust air recirculation dur Method and apparatus to accomplish exhaust air recirculation dur

1997-02-03

1998-08-04

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

F02D 1304

Patent

active

057878595

ABSTRACT:
A method and apparatus of carrying out exhaust gas recirculation and compression release retarding is disclosed for use during both positive power and retarding operation of an internal combustion engine. Motion or energy is derived from an engine component and stored as potential energy. The stored energy is selectively applied to a valve actuator to carry out exhaust gas recirculation in an engine cylinder. The energy derived from the engine may be stored in the form of a compressed hydraulic fluid and selectively applied to the valve actuator with an electronically controlled trigger valve. The valve actuator may be a slave piston having an inner core and an outer sleeve capable of opening the valve of the cylinder in response to independent exhaust gas recirculation and compression release hydraulic systems.

REFERENCES:
patent: 4378765 (1983-04-01), Abermath et al.
patent: 4423712 (1984-01-01), Mayne et al.
patent: 4455977 (1984-06-01), Kuczcnoski
patent: 4706625 (1987-11-01), Meistrick et al.
patent: 4981119 (1991-01-01), Neitz et al.

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