Valve containing coupled, rotatable elements to control fluid fl

Details Valve containing coupled, rotatable elements to control fluid fl Valve containing coupled, rotatable elements to control fluid fl

1992-02-18

1994-01-04

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

25112906, 418181, F15B 13044, F16K 3102

Patent

active

052752054

ABSTRACT:
In a piezoelectric valve the actual control member (7) is formed by a displacer fluid motor (9) though which the fluid stream (5) flows. A piezoelectric actuating element (8) is disposed in the region of a displacer element (1), which can be moved by the fluid stream (5) and belongs to this fluid motor (9), and acts exploiting the inverse piezo effect during electric actuation to at least indirectly block or release this displacer element (1). The fluid motor (9) is formed preferably by a rotating piston machine, such as a gear pump.

REFERENCES:
patent: 1689791 (1928-10-01), McClatchie
patent: 1743582 (1930-01-01), Wiltse
patent: 3746049 (1973-07-01), O'Connor
patent: 4682939 (1987-07-01), Petro
patent: 4981423 (1991-01-01), Bissonnette
PCT Publication No. WO81/01315 published May 14, 1981.
Patent Abstracts of Japan, vol. 9, No. 256, 1979 (60-104819).

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