Transducer for fluid flow

Details Transducer for fluid flow Transducer for fluid flow

1988-06-01

1989-09-12

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

7386153, G01F 122

Patent

active

048648710

ABSTRACT:
A flow transducer with a variable orifice formed between a conical valve member tapering in the downstream direction and a sliding piston located downstream of the valve member. A throat member is fixed within a housing upstream of the valve member. An annular chamber is formed between the walls of the housing and the throat member. Radial holes open from the annular chamber into the bore of the throat member. The radial holes are equally spaced, all of the same diameter, and at the same axial position. An upstream tapping extends into the annular chamber.

REFERENCES:
patent: 2367544 (1945-01-01), Udale
patent: 3600945 (1971-05-01), Wenzel et al.
patent: 3759098 (1973-09-01), Logsdon et al.
patent: 3805611 (1974-04-01), Hedland
patent: 4235105 (1980-11-01), Walters
patent: 4254664 (1981-03-01), Graham
patent: 4552027 (1985-11-01), Larner

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