Two way-high pressure loop, exhaust gas recirculation valve

Details Two way-high pressure loop, exhaust gas recirculation valve Two way-high pressure loop, exhaust gas recirculation valve

1997-06-09

1998-04-21

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123570, 123571, 606052, 251305, F02M 2507

Patent

active

057407851

ABSTRACT:
A single exhaust gas recirculation valve selectively provides flow distribution of exhaust gas from an engine manifold to a turbocharger or exhaust gas recirculation system, and simultaneously provides back pressure for driving the recirculated exhaust gas to the intake manifold of the engine when the valve is positioned to recirculate all or part of the exhaust gas. A "wing-type" throttle blade is rotatably positioned within the valve and is selectively positionable between a first blocking position at which the exhaust gas recirculation port is blocked, and a second position at which the flow of exhaust gas to the turbine section of a turbocharger is blocked, as well as intermediate positions between the two blocked positions. The bearings supporting a shaft, to which the throttle blade is attached, are water cooled, as well as a mounting flange and shell surrounding an electric stepper motor coupled to the shaft. The present invention solves the problem of providing a compact EGR flow and back pressure valve in close proximity to the hot environment surrounding the exhaust manifold of an engine and a turbocharger.

REFERENCES:
patent: 4296724 (1981-10-01), Iizuka et al.
patent: 5440880 (1995-08-01), Ceynow et al.
patent: 5520161 (1996-05-01), Klopp
patent: 5531205 (1996-07-01), Cook et al.
patent: 5669365 (1997-09-01), Gartner et al.

Affiliated with

Also associated with

Rating

Two way-high pressure loop, exhaust gas recirculation valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two way-high pressure loop, exhaust gas recirculation valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two way-high pressure loop, exhaust gas recirculation valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2050846