Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1983-02-18
1985-01-08
Burns, Wendell E.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
F02M 2506
Patent
active
044922108
ABSTRACT:
A serviceable valve is provided for controlling the recirculation of exhaust gases within an internal combustion engine. The valve includes a housing having a first section provided with an interior chamber and a second section secured to and subtending said first section. A diaphragm is affixed to and interposed the housing sections and is in communication with the chamber. In response to a predetermined chamber pressure, the diaphragm is distorted in one direction from a predetermined rest position. The housing is mounted on a fitting, which subtend the housing second section, whereby said housing and the diaphragm are rotatable as a unit about an axis of the fitting to selected positions of adjustment. The fitting is removably mounted on the engine. Carried on the diaphragm is a stem assembly which is movable longitudinally in response to the distortion of the diaphragm. A portion of the stem assembly extends through and protrudes from the fitting and has a valve piece mounted thereon. The valve piece is adapted to coact with a valve seat disposed within a recirculation flow path of the engine exhaust gases and, when seated thereon, blocks recirculation of the exhaust gases through the engine. The housing first section is provided with a port offset from the fitting axis and adapted to be removably connected to a pressure fluctuating segment of the engine. Means is provided which coacts with the fitting and the housing second section and releasably retains the housing and diaphragm in a selected position of adjustment relative to the fitting.
REFERENCES:
patent: 3646923 (1972-03-01), Sarto
patent: 3713428 (1973-01-01), Sandhagen
patent: 3972312 (1976-08-01), Walker
patent: 3974807 (1976-08-01), Nohira et al.
patent: 4044739 (1977-08-01), Miura et al.
patent: 4080941 (1978-03-01), Bertrand
Ballwin-Washington, Inc.
Burns Wendell E.
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