Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1995-07-27
1996-12-24
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
1374848, 137505, 13750537, G05D 1602
Patent
active
055865690
ABSTRACT:
A fluid pressure regulator having various features that contribute to a low cost regulator that is easy to assemble from components that require less machining than existing regulator designs of comparable performance. The invention is characterized by (i) a fluid pressure regulator of closed bottom design that has a flow path similar to a conventional open bottom design, with other attendant advantages arising from the closed bottom design; (ii) a slant seal between a main body including the inlet and outlet ports and an insert body closing an open end of an intersecting chamber in the main body in which the valve element and valve seat are located; (iii) the valve seat insert having a wall portion separating the main flow path in the main body of the housing from a control chamber for the valve element and the wall portion including therein an aspirating passage for connecting the control chamber a portion of the main flow passage downstream of the valve seat; (iv) a diaphragm piston assembly including an axially elongated mounting bead which hold the assembly to a bonnet body with other components of the bonnet retained in the bonnet body for easy assembly of the bonnet to the main body of the regulator housing; and (v) a relief type regulator that has during forward flow low hysteresis arising from use of a rolling diaphragm and a unique vent seal that dampens vibrations to eliminate unwanted noise that might otherwise arise.
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Hanning John R.
Olmsted Daniel C.
Hepperle Stephen M.
Parker-Hannifin Corporation
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