Structure for supporting EGR valve in engine
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsMasatoshi Tanioka, Koji Tsuchida
Life of this patent
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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.
Claims18
A structure for supporting an EGR valve in an engine, comprising a water passage provided separately from an intake manifold and connected to a water jacket provided in a cylinder head of the engine, said water passage being integrally formed with a valve mounting seat for supporting said EGR valve and a gas passageway connected to said EGR valve.
A structure for supporting an EGR valve in a horizontal V-type engine having a front bank and a rear bank, said structure comprising:
- a water passage provided separately from an intake manifold to interconnect water jackets provided in said front and rear banks;
- and
- an EGR valve supported near a connection of the water passage to the front bank.
Dependencies are inferred from the claim text.