Exhaust gas recirculation valve with floating valve assembly

Details Exhaust gas recirculation valve with floating valve assembly Exhaust gas recirculation valve with floating valve assembly

1997-08-11

1999-11-23

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

12356826, F02B 4708, F02M 2507

Patent

active

059881470

ABSTRACT:
An installation for an exhaust gas recirculation valve in which the valve is mounted directly in the intake manifold, a tubular base piece receiving exhaust gas mounted in an opening in the manifold by a double-walled thin metal heat gradient element. An attached solenoid housing is mounted in an opening in an opposite manifold wall. An operating rod having an attached valve element is actuated by a pushing force generated by energization of the solenoid, the valve element controlling the flow of exhaust gas out of a valve seat in a partition in the tubular base piece and out of the tubular base piece into the air flow in the air induction ducting. The solenoid is designed by allow controlled proportionate opening movement of the valve element to correspondingly control the volume of exhaust gas diverted into the manifold air flow. The valve is cooled by air flow within the air induction duct to prevent heat damage to the manifold and the solenoid components are isolated from direct exposure to exhaust gas.

REFERENCES:
patent: 4312494 (1982-01-01), Aoyama
patent: 4515343 (1985-05-01), Pischinger et al.
patent: 4538569 (1985-09-01), Sugino et al.
patent: 4682574 (1987-07-01), Kreuter
patent: 5094218 (1992-03-01), Everingham et al.
patent: 5460146 (1995-10-01), Frankenberg
patent: 5494255 (1996-02-01), Pearson et al.
patent: 5626165 (1997-05-01), Shinobu
Patent Abstracts of Japan, JP6249032, Jun. 9, 1994, Application No. JP930039863, Dated Jan. 3, 1993 for Motor Driving Actuator, 1 page.

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