Engine including secondary air supply apparatus

Details Engine including secondary air supply apparatus Engine including secondary air supply apparatus

2011-03-08

2011-03-08

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S293000, C060S304000, C060S305000, C060S307000, C060S317000

Reexamination Certificate

active

07900442

ABSTRACT:
The present invention provides an engine including a secondary air supply apparatus for supplying a secondary air to an exhaust gas passage in a cylinder head. The engine comprises a secondary air passage of the secondary air supply apparatus which extends from an outer peripheral surface of the cylinder head through an under-portion of the exhaust gas passage into the exhaust gas passage. The secondary air passage has a groove geometry of passage portion on a matching surface between the cylinder head and a cylinder body.

REFERENCES:
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patent: 4437305 (1984-03-01), Ikenoya et al.
patent: 4727717 (1988-03-01), Ikenoya et al.
patent: 6311483 (2001-11-01), Hori et al.
patent: 55-151114 (1980-11-01), None
patent: 2000-328933 (2000-11-01), None
patent: 2003-074319 (2003-03-01), None

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