Fluid handling – Pressure modulating relays or followers
Patent
1984-11-05
1986-06-17
Cohan, Alan
Fluid handling
Pressure modulating relays or followers
25112908, 25112909, G05D 1600
Patent
active
045950296
ABSTRACT:
Telescoping coil systems 14 and 16, respectively, engage a Z-shaped balance beam 12 at opposite arms 18 and 20 thereof said beam being mounted centrally by a flexural pivot suspension 10. A surface 26 is provided on the arm 18 and forms a nozzle and baffle plate system with nozzle 22. The torque caused by the pneumatic pressure acting on the surface of nozzle 22 is compensated for by a torque exerted by two telescoping coil systems 14 and 16 when an electrical current is passed through. Thereby the pressure at an output 28 is proportional to the electrical current. A flexural pivot suspension provided for the balance beam includes a pair of crossed baffle springs on each side of the balance beam. Each leaf spring has one end attached to the balance beam and the other end attached to a bearing portion.
REFERENCES:
patent: 2750960 (1950-06-01), Hansen
patent: 3155104 (1904-11-01), Hilgert
patent: 3589672 (1969-02-01), Hoolloman
patent: 3621862 (1971-11-01), Wojtecki
patent: 4336819 (1982-06-01), Nishihara
Cohan Alan
Sunvic Regler GmbH
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