Rotary pump or motor with drive rollers and free-floating roller

Details Rotary pump or motor with drive rollers and free-floating roller Rotary pump or motor with drive rollers and free-floating roller

1981-05-06

1983-01-25

Vrablik, John J.

Rotary expansible chamber devices

Plural working chambers

Axially spaced rotating members rotate on common axis

418225, F01C 100, F01C 1100, F03C 200, F04C 200

Patent

active

043701116

ABSTRACT:
A pump or motor has a plurality of spaced drive rollers which rotate in an annular path in a chamber about an axis eccentric to the axis of the chamber. A plurality of free-floating rollers in the chamber are driven through the chamber by the drive rollers to form expanding and contracting areas in the chamber which control the flow of fluid into and out of the chamber. Another free-floating roller or member is centrally located between the drive rollers, and it is concentric with the path of the drive rollers. The centrally located roller is closely adjacent to the drive rollers and forms therewith a fluid seal that prevents any substantial fluid leakage therebetween.

REFERENCES:
patent: 436399 (1890-09-01), Carpenter
patent: 1762418 (1930-06-01), Petersen
patent: 2068570 (1937-01-01), Ross
patent: 2672825 (1954-03-01), Quintilian
patent: 3641985 (1972-02-01), La Forge
Article--Large-Displacement Roller Pump Improves Performance, p. 56, Nov. 3, 1980 Edition of Design News.
Letter Dated Dec. 2, 1980 was sent by Advanced Mechanical Ideas, Inc. to Companies requesting more information.
Advertisement "Positive Displacement Pump/Motor-104677", p. Mf-4 of vol. IV, No. 3, Mar. 1980, Selected Business Ventures, by General Electric.
A Cover Letter from Advanced Mechanical Ideas, Inc. attached to a packet of Information.
Article-Eccentric Pumps Turn to Novel Motions, pp. 37-40 of Design Engineering, Jan., 1981, see col. 1, p. 37 and cols. 2, 3 on p. 40.

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