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

1997-03-10

1998-09-22

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123323, F02D 1304

Patent

active

058099646

ABSTRACT:
A method and apparatus for carrying out variable timing exhaust gas recirculation 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 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: 4836162 (1989-06-01), Melde-Tuczai et al.
patent: 4932372 (1990-06-01), Meneely
patent: 5647318 (1997-07-01), Feucht et al.
patent: 5680841 (1997-10-01), Hu

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