Exhaust gas recirculation valve having a rotary motor

Details Exhaust gas recirculation valve having a rotary motor Exhaust gas recirculation valve having a rotary motor

2006-12-05

2006-12-05

Look, Edward K. (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

C251S077000, C123S568240

Reexamination Certificate

active

07143993

ABSTRACT:
An exhaust gas recirculation valve is provided. The exhaust gas recirculation valve has a base, a spring biasing the valve closed, and an actuator including a rotary motor and a linearly displaceable shaft that is coupled to the motor's rotor. The valve includes a valve member and valve seat disposed within a fluid conduit, and the spring is disposed between the actuator and the valve.

REFERENCES:
patent: 5184593 (1993-02-01), Kobayashi
patent: 5381765 (1995-01-01), Rhodes
patent: 5680880 (1997-10-01), Miyake et al.
patent: 5941500 (1999-08-01), Lebkuchner
patent: 6224034 (2001-05-01), Kato et al.
patent: 6484704 (2002-11-01), Cook et al.
U.S. Appl. No. 10/759,231, filed Jan. 20, 2004, Everingham et al., Exhaust Gas Recirculation Valve Having a Rotary Motor.
U.S. Appl. No. 10/759,229, filed Jan. 20, 2004, Everingham et al., Exhaust Gas Recirculation Valve Having a Rotary Motor.

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