Pulse reflecting method and arrangement in an exhaust gas...

Details Pulse reflecting method and arrangement in an exhaust gas... Pulse reflecting method and arrangement in an exhaust gas...

2005-09-20

2005-09-20

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568120, C060S605200

Reexamination Certificate

active

06945235

ABSTRACT:
Method and arrangement for enhancing exhaust gas recirculation efficiency on a combustion engine by providing a combustion engine having an exhaust system in fluid communication, via at least one juncture, with an exhaust gas recirculation system and locating a reflector in the exhaust system downstream of the at least one juncture. The reflector is adapted to reflect at least a portion of exhaust gas pressure pulses emitting from the combustion engine thereby causing a reflected pressure pulse to occur upstream of the reflector, and deflecting at least a portion of the reflected pressure pulse into the exhaust gas recirculation system thereby enhancing the efficiency of the exhaust gas recirculation system.

REFERENCES:
patent: 5661973 (1997-09-01), Casey
patent: 6321536 (2001-11-01), Henderson et al.
patent: 6408834 (2002-06-01), Brackney et al.
patent: 6782696 (2004-08-01), Shigahara et al.
patent: 2353328 (2001-02-01), None
patent: 60-224961 (1985-11-01), None
patent: 11-82181 (1999-03-01), None

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