Exhaust valve for combustion engines
AssigneeVisteon Global Technologies, Inc.
InventorDean Jinkyu Rim
Life of this patent
Estimating the term…
Abstract
An exhaust valve (10) includes a housing (44) having a passageway (46) extending axially therethrough. The exhaust valve (10) also includes a rotatable butterfly plate (50) disposed in the passageway (46) of the housing (44) and having an annular groove (52) in a periphery thereof. The exhaust valve (10) further includes a ring seal (60) disposed in the groove (52) and being radially compressible and expandable for engagement and disengagement with the housing for opening and closing the passageway (46) to allow and prevent exhaust gases flowing therethrough.
Claims9
An exhaust valve for an exhaust heat recovery system of a motor vehicle comprising:
- a housing for attachment to the exhaust heat recovery system of the motor vehicle and having a passageway extending axially therethrough;
- a rotatable butterfly plate disposed in said passageway of said housing and having a plate portion with an annular groove axially within said plate and extending radially inwardly in a periphery thereof, said plate including a shaft portion extending outwardly from one side of said plate portion and having an aperture extending therethrough, a shaft extending through said aperture, said aperture being offset laterally from a longitudinal axis of said housing;
- and
- a metal ring seal disposed in said groove and extending radially beyond the periphery of said plate and being radially compressible in said groove and radially expandable for engagement and disengagement with said housing for opening and closing said passageway to allow and prevent exhaust gases flowing therethrough.
An exhaust heat recovery system for a motor vehicle comprising:
- an exhaust pipe for attachment to an exhaust system of the motor vehicle;
- a heat exchanger disposed in parallel to said exhaust pipe and connected thereto;
- a backpressure valve disposed between an exist end of said heat exchanger and said exhaust pipe;
- an exhaust valve disposed between an entrance end and the exit end of said exhaust pipe;
- and
- said exhaust valve comprising a housing for attachment to said exhaust pipe and having a passageway extending axially therethrough, a rotatable butterfly plate disposed in said passageway of said housing and having a plate portion with an annular groove axially within said plate and extending radially inward in a periphery thereof, and a ring seal disposed in said groove and extending radially beyond the periphery of said plate and being radially compressible in said groove and radially expandable for engagement and disengagement with said housing for opening and closing said passageway to allow and prevent exhaust gases flowing therethrough, said butterfly plate including a shaft portion having an aperture extending therethrough, a shaft extending through said aperture and engaging said housing, said aperture and shaft being offset laterally from a longitudinal axis of said housing.
Dependencies are inferred from the claim text.