Structure for supporting EGR valve in engine

Details Structure for supporting EGR valve in engine Structure for supporting EGR valve in engine

1996-09-11

1997-11-25

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123 4128, 123 4129, 123 4131, F02M 2507, F01P 312, F01P 320

Patent

active

056900821

ABSTRACT:
A water passage is provided separately from an intake manifold to interconnect water jackets provided in a front bank and a rear bank of a horizontal V-type engine. An EGR valve is supported on a valve mounting seat which is provided at a front portion of the water passage. A water passageway through which cooling water flows, and a gas passageway through which an EGR gas flows, are defined in the water passage in close proximity to one another. The EGR valve is cooled by cooling wind passed through a fan opening in a radiator and by cooling water flowing through the water passageway. Thus, it is possible to avoid thermal influence on the intake manifold by the EGR valve, and to cool the EGR valve without the need for special cooling means.

REFERENCES:
patent: 1629664 (1927-05-01), Jack
patent: 2713332 (1955-07-01), Beardsley
patent: 3782348 (1974-01-01), Linder
patent: 3937196 (1976-02-01), Cook et al.
patent: 4163282 (1979-07-01), Yamada et al.
patent: 4413596 (1983-11-01), Hirayama
patent: 4953525 (1990-09-01), Sakurai et al.
patent: 5490488 (1996-02-01), Aversa et al.

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