Impulse pump with a metal diaphragm

Details Impulse pump with a metal diaphragm Impulse pump with a metal diaphragm

1988-04-11

1989-05-16

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417413, 73505, F04B 4304, F04B 4906

Patent

active

048305774

ABSTRACT:
A metal diaphragm impulse pump with no valves is disclosed. The pump may be used in an angular velocity sensor utilizing the Coriolis effect on a fluid jet. A magnetic core is mounted within an anvil and a drive coil is wound around the core. The drive coil may be driven sinusoidally and the diaphragm, which is mounted on the anvil responds with a vibratory motion in like manner. Sensing poles are provided in quadrature with the drive coils and may be used to sense the vibratory motion and thereby control the fluid flow.

REFERENCES:
patent: 2312712 (1943-03-01), Hartline
patent: 3381623 (1968-05-01), Elliott
patent: 3587328 (1971-06-01), Schuemann
patent: 4254659 (1981-03-01), Benedetto et al.
patent: 4295373 (1981-10-01), Moffatt
patent: 4305293 (1981-12-01), Swartz
patent: 4314202 (1982-02-01), Okubo
patent: 4716763 (1988-01-01), Moffatt et al.
patent: 4726227 (1988-02-01), Moffatt et al.
Official Gazette, p. 1936, dated 4/28/87.
Official Gazette, 1084 OG 23, dated 11/17/87.

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