Title: Fluid pressure regulator

Abstract: This disclosure deals with a variable fluid pressure regulator wherein the level at which the fluid pressure is regulated is adjustable. A member has a flow passage formed therein, and the fluid flows through the passage and out of the member, and a closure is positioned over the opening. The closure is yieldably mounted relative to the member and a spring urges the closure toward the opening. A recess or cavity is formed in the closure, and the fluid flows from the opening, into the recess, and then through a space between the closure and the member. The fluid pressure in the passage is a function of the spring force and the effective area of fluid pressure on the closure, and the effective area comprises the area of the opening plus any area of the recess which lies outside the margin of the opening. The regulated fluid pressure level may be varied by laterally shifting the closure relative to the opening in order to change the effective area.

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Inventors: Perr, Julius P. (Columbus, IN, US)
Smith, Edward D. (Greensburg, IN, US)
Wilson, Harry L. (Columbus, IN, US)

Application Number: 504047
Filing Date: 1974-09-09
Publication_date: 1977-08-02
Assignee: Cummins Engine Company, Inc. (Columbus, IN)
Primary Class(es): 123/506 60/39.281, 137/51
Other Classes:
US Patent Ref:

2623509	Dec, 1952	Gold et al.	137/51.
2800121	Jul, 1957	Fletcher	123/140.
3048013	Aug, 1972	Bevers et al.	60/39.
3054254	Sep, 1962	Hopper	60/243.
3078670	Feb, 1963	Werner	60/39.
3107623	Oct, 1963	Budzich	123/139.
3168084	Feb, 1965	Simonet	123/139.
3446015	May, 1969	Kimmel	60/39.
3514946	Jun, 1970	Warne	60/39.
3574475	Apr, 1971	Wolff	60/39.
3726086	Apr, 1973	Herbstritt	60/39.
3777479	Dec, 1973	Hagen	60/39.
3927654	Dec, 1975	Perr	123/140.

Other Refs:
Primary Examiner: Dority, Jr., Carroll B.
Assistant Examiner: Devinsky, Paul
Attorney: Hibben, Noyes & Bicknell, Ltd.