Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1977-09-30
1979-12-25
Cohen, Irwin C.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
91468, 418203, G05D 1100
Patent
active
041800893
ABSTRACT:
The invention, in an embodiment shown, employs a piston-controlled metering valve to attenuate oil-pressure biasing of a thrust piston as discharge pressure in the gas compressor diminishes, and to increase the biasing as the discharge pressure increases. Discharge pressure of the compressor is impressed on one surface of the valve piston, and compressor oil pressure is addressed to the opposite surface of the piston from the oil pressure line. A shunt line communicates with a valve-metered orifice to bypass oil flow therethrough, from the oil pressure line, upon the compressor discharge diminishing, and the orifice becomes constricted--to impede an oil bypass--upon the compressor discharge increasing. The degree of oil bypassing or shunting from the oil pressure line results in a modulation of the oil line pressure which, in turn, is addressed to the thrust piston.
REFERENCES:
patent: 3076477 (1963-02-01), Brandenberg
patent: 3161349 (1964-12-01), Schibbye
patent: 3334705 (1967-08-01), Lam
patent: 3878864 (1975-04-01), Schurger
patent: 3958495 (1976-05-01), Bernhoft
patent: 4031966 (1977-06-01), Farrell
Cohen Irwin C.
Ingersoll-Rand Company
Murphy Bernard J.
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