EGR system having EGR valve with purge air chamber

Details EGR system having EGR valve with purge air chamber EGR system having EGR valve with purge air chamber

2008-03-18

2008-03-18

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

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568200, C123S568210

Reexamination Certificate

active

11315566

ABSTRACT:
An exhaust gas recirculation system for an internal combustion engine includes an intake manifold, an exhaust manifold, and a turbocharger compressor coupled with the intake manifold. The exhaust gas recirculation system includes an EGR valve fluidly coupled between the exhaust manifold and the intake manifold. The EGR valve includes a valve stem and a purge air inlet associated with the valve stem. The purge air inlet is in fluid communication with the compressor.

REFERENCES:
patent: 4278063 (1981-07-01), Nakamura et al.
patent: 4313415 (1982-02-01), Shinzawa
patent: 5974802 (1999-11-01), Blake
patent: 6484703 (2002-11-01), Bailey
patent: 07279776 (1995-10-01), None

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