Pumps – Expansible chamber type – Oscillating pumping member
Patent
1978-11-16
1981-02-24
Smith, Leonard E.
Pumps
Expansible chamber type
Oscillating pumping member
92122, F01C 900, F04C 2100
Patent
active
042525098
ABSTRACT:
Apparatus for handling fluid is provided. The apparatus can serve to pump fluid and increase its pressure when power is applied to a shaft, or the apparatus can drive the shaft when fluid under pressure is supplied. The apparatus includes a housing having a plurality of chambers formed therein in a circular pattern. Each of the chambers includes two generally triangularly-shaped cavities communicating at apexes and positioned symmetrically with respect to a center line extending through the apexes. The chamber also is of a generally bow-tie shaped configuration. Each of the chambers has a piston therein which is oscillated about an axis at the center line of the chambers. The piston is generally of the same shape as the chamber but narrower. Each cavity has intake lines and outlet lines through which fluid flows as the piston oscillates therein. The pistons have arms extending outside the chambers and driven to oscillate the pistons. In a preferred form, the arms are engagable by a rotary cam which causes the arms to oscillate and, therefore, the pistons to do the same.
REFERENCES:
patent: 638570 (1899-12-01), Forsyth
patent: 907859 (1908-12-01), Neumann
patent: 1232850 (1917-07-01), Saunders
patent: 1467619 (1923-09-01), Hull
patent: 1516584 (1924-11-01), Wilson
patent: 2359819 (1944-10-01), Bachrach
Gutchess, Jr. Allen D.
Hagerty Research & Development Co., Inc.
Smith Leonard E.
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