Exhaust gas recirculation valve

Details Exhaust gas recirculation valve Exhaust gas recirculation valve

1996-05-13

1997-11-11

Lee, Kevin

Valves and valve actuation

Electrically actuated valve

Including solenoid

251366, F16K 3106

Patent

active

056855192

ABSTRACT:
A valve assembly is disclosed for metering exhaust gas to the intake manifold of an internal combustion engine. The valve assembly has a base which includes a passage communicating between the intake manifold and the exhaust manifold of the engine. The passage has a valve seat which is operable with a valve member to meter the flow of exhaust gas through the passage to the intake manifold. An actuator assembly is mounted to the base and is operably connected to the valve member to move the valve member into and out of engagement with the valve seat. The actuator assembly is constructed of an extruded housing having sides a bottom and support members extending from the bottom to position the actuator relative to the base. A stepped extension also extends from the bottom of the actuator housing and is press fit into an opening in the top of the base member to define a sealed passage for the valve stem between the base member and the actuator. The stepped extension may include a bearing to support the valve stem within the actuator and seal against leakage of exhaust gas from the base to the actuator.

REFERENCES:
patent: 2629007 (1953-02-01), Forman
patent: 3625474 (1971-12-01), Juede
patent: 4044324 (1977-08-01), Coors
patent: 4198030 (1980-04-01), Jackson et al.
patent: 4363463 (1982-12-01), Moon, Jr.
patent: 4805582 (1989-02-01), Braun et al.
patent: 5020505 (1991-06-01), Grey et al.
Lequesne B., "Finite Element Analysis Of A Constant Force Solenoid For Fluid Flow Control" Oct. 1987, Conference Record of the Industry Applications Society Annual Meeting, pp. 46-51.

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