Rotary expansible chamber devices – With changeable working chamber magnitude – Spring or fluid biased movable member
Patent
1980-06-13
1982-07-20
Vrablik, John J.
Rotary expansible chamber devices
With changeable working chamber magnitude
Spring or fluid biased movable member
418 31, F03C 200, F04C 1504
Patent
active
043403387
ABSTRACT:
The casing of a pump defines a threaded hole into which is inserted an outer block for reacting radially directed forces transmitted by a second inner block from a movable, pressurized cam ring surrounding the pump rotor. The blocks have mutually parallel mating surfaces arranged generally tangential to the ring. Onto one of such surfaces is bonded an anti-friction bearing material, such as a woven fabric or metal, to facilitate sliding action between them. The eccentric position of the cam ring is partly established by the action of system pressure acting on control pistons while the guided motion of the inner block further positions the ring to optimal adjustments made to the outer block.
REFERENCES:
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patent: 2764941 (1956-10-01), Miller et al.
patent: 3052189 (1962-09-01), Head
patent: 3134334 (1964-05-01), Smith
patent: 3137235 (1964-06-01), Brown
patent: 3523746 (1970-08-01), Dadian et al.
patent: 3901628 (1975-08-01), Bornholt et al.
patent: 3918855 (1975-11-01), Bornholt
Hardt Aaron L.
Rexnord Inc.
Smith Vance A.
Vrablik John J.
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