Flow restrictor

Details Flow restrictor Flow restrictor

1981-08-03

1983-12-06

Goldstein, Herbert

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

7386152, F15D 100, G01F 140

Patent

active

044187238

ABSTRACT:
Improvements in a flow restrictor for use in a flowmeter measuring a flow rate according to the pressure drop caused by laminar flow, utilizing the fact that the pressure drop is proportional to the flow rate. The flow restrictor comprises a cylindrical member, and a housing having a fluid inlet and a fluid outlet for accommodating the cylindrical member, wherein at least one groove or spiral groove for passing fluid is formed in the peripheral direction of the cylindrical surface of the cylindrical member or in the peripheral direction of the inner surface of the housing forming a cylindrical cavity for accommodating the cylindrical member.

REFERENCES:
patent: 1459925 (1923-06-01), Olin
patent: 1487989 (1924-03-01), Vose
patent: 1734026 (1929-10-01), Bijur
patent: 2069630 (1937-02-01), Steenstrup
patent: 2091792 (1937-08-01), Niesemann
patent: 2423155 (1947-07-01), Phillips
patent: 2623577 (1952-12-01), Cowles
patent: 2683973 (1954-07-01), Mettler
patent: 3220256 (1965-11-01), Weichbrod
patent: 3240233 (1966-03-01), Johnston
patent: 3253459 (1966-05-01), Sorenson et al.

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