2006 to 2000 K-TEK VP of Operations / ABB Production ManagerMarsh Bellofram
1999 to 2006 Director of Operations & EngineeringMarsh Bellofram
1997 to 1999 Director of EngineeringITT Industries
1992 to 1997 RD&E ManagerITT Industries
1987 to 1992 Design Engineer
Education:
West Virginia University Morgantown, WV Jan 1980 to Jan 1996 BSEE in Electrical EngineeringThe Citadel Charleston, SC Jan 1990 to Jan 1992 MBA in Business Adminestration
An electro-pneumatic transducer converts an electrical input signal into a proportional (direct or indirect) pneumatic output signal. A circuit will sense the magnitude of the input signal, monitor the output fluid pressure and adjust a piezoelectric beam voltage until a desired output fluid pressure is achieved. The output fluid pressure is controlled by the deflection of a piezoelectric beam which is polarized and will deflect with an applied voltage. The output fluid pressure is monitored by a pressure sensor.
Roney A. Reid - Boardman OH Anthony J. Progar - Paris PA
Assignee:
Marsh Bellofram Corporation - Newell WV
International Classification:
G05D 1602
US Classification:
137 14
Abstract:
The invention relates to a pressure regulator for propane and liquefied petroleum with a balanced valve. An inlet port (10) receives supply pressure and an outlet port (14) receives output pressure. A threaded shaft (28) engages a pocket in a spring button (20). A diaphragm assembly (22) engages the bottom of a range spring (24). A T-handle (26) is rotated to move the spring button (20) downward, compressing the range spring (24) which creates a net downward force on the diaphragm assembly (22). A valve mechanism (12) includes a supply seat (30), a supply valve (34), a balance piston (32), and a pintle interconnection (36). The supply valve (34) moves off of the supply seat (30) as the downward force is exerted on the diaphragm assembly (22), and supply pressure fills the outlet port (14). An aspirator tube (39) transfers supply pressure from the outlet port (14) to the diaphragm assembly (22) resulting in a net upward force on the diaphragm assembly (22) as a function of outlet pressure times diaphragm assembly (22) area. A balanced diaphragm (42) and an o-ring (44) create a redundant seal and prevent the effect of supply pressure on output pressure by equating the net upward and downward force on the valve mechanism (12) due to supply pressure.
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