Rotary expansible chamber devices – Positively actuated vane – Spring biased
Patent
1987-03-06
1988-08-09
Croyle, Carlton R.
Rotary expansible chamber devices
Positively actuated vane
Spring biased
418270, F04C 18344
Patent
active
047624809
ABSTRACT:
Rotary pump comprising a housing having a bore and a first adjacent lateral side wall having at least one inlet slit and a second adjacent lateral side wall having at least one outlet slit of at least equal size to said inlet slit for flow of medium axially therethrough, said slits in said lateral side walls defining the path of flow for said medium from said inlet axially directly into said bore and then from said bore axially directly to said outlet slit, a rotor mounted in the bore for rotation about an axis generally parallel to and eccentric to the bore axis, a plurality of vanes pivotally mounted on the periphery of the rotor having free ends in sliding sealing contact with said bore, each vane having lateral surfaces having an inner edge facing the rotor and an outer edge facing the bore which edges on rotation of the rotor pass over an inner boundary edge of the inlet and outlet slits facing the bore of the housing, said inlet slit and outlet slit, curving along an arc around the rotational axis of rotor and extending in such a way that the trailing end of the inlet slit and the leading end of the inlet slit are disposed adjacent a central plane passing through the axis of the bore of the housing and the rotational axis of the rotor.
REFERENCES:
patent: 154532 (1874-08-01), Tuerk
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patent: 2521592 (1950-09-01), McManus
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patent: 2752893 (1956-07-01), Oleskow
patent: 3120154 (1964-02-01), Gilreath
patent: 4519755 (1985-05-01), Hanson
Peter Heinz
Pfaller Egon
Winkler Otmar
Croyle Carlton R.
Obee Jane E.
Renz, Jr. Eugene R.
SKF GmbH
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