Rotary expansible chamber devices – Moving cylinder – Rotating
Patent
1984-08-09
1985-11-19
Smith, Leonard E.
Rotary expansible chamber devices
Moving cylinder
Rotating
418253, F04C 2352
Patent
active
045539162
ABSTRACT:
A rotary fluid pump, comprising: a housing defining a circular cylindrical pumping chamber; at least one blade positioning ring mounted for rotation around the periphery of the pumping chamber; an eccentrically disposed drive shaft for slidably engaging and rotating a blade mechanism in the pumping chamber; means enabling the blade mechanism to rotatably drive the at least one blade positioning ring and accommodate the eccentric rotation of the blade; and, fluid intake and exhaust ports. A first embodiment further comprises: a stacked pair of blade positioning rings mounted for independent rotation around the periphery of the pumping chamber; a blade assembly pivotably mounted at each end to a different one of the rings; and, slidably interfitting structure in the blade assembly for accommodating the relative movement of the ends of the blade assembly during the eccentric rotation. A second embodiment comprises structure effecting sequential engagement and disengagement of the blade to preselected positions on the ring during rotation, which together with the sliding movement between the blade and the drive shaft, changes the effective length of the blade during the eccentric rotation.
REFERENCES:
patent: 1712935 (1929-05-01), Seaholm
patent: 1806206 (1931-05-01), Lees
patent: 2184753 (1939-12-01), Palmer
patent: 2705591 (1955-04-01), Anderson
Smith Katherine R.
Smith Leonard E.
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