Rotary expansible chamber devices – Non-metallic working member – cylinder or partition
Patent
1980-04-01
1982-12-07
Vrablik, John J.
Rotary expansible chamber devices
Non-metallic working member, cylinder or partition
418178, 418179, 418225, F04C 200, F04C 1500
Patent
active
043624804
ABSTRACT:
A rotary positive displacement pump of the pin roller type comprising a pump housing made of aluminum having a pump chamber with the inner periphery being cylindrical, which is fixed between a pump base and a pump case, a rotor eccentrically located within the pump chamber and driven by a motor, a plurality of rollers made of synthetic resin which is inserted in clearance grooves formed on the outer periphery of the rotor, wherein a centrifugal force generated when the rotor rotates moves the rollers toward the inner wall of the pump housing thereby to form a pump operation space.
REFERENCES:
patent: 2126200 (1938-08-01), Linderman
patent: 3096569 (1963-07-01), Cook et al.
patent: 3419208 (1968-12-01), Brewer et al.
patent: 3552895 (1971-01-01), Bayley
patent: 3878880 (1975-04-01), Jones
patent: 3892028 (1975-07-01), Dobler
patent: 4086043 (1978-04-01), Howe
patent: 4209286 (1980-06-01), Schwartz
Fujiwara Hiroyuki
Harada Tatsumi
Murakami Sadatoshi
Suzuki Ryozo
Yamasaki Satoru
Mitsubishi Denki & Kabushiki Kaisha
Vrablik John J.
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