Tracked rotary positive displacement device
AssigneePhoenix Compressor and Engine Corporation
InventorsPaul M. Crvelin, Giovanni Aquino, Ewan Choroszylow
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Abstract
A rotary device containing a housing with a curved inner surface in the shape of a trochoid and an interior wall, an eccentric mounted on a shaft disposed within the housing, a rotor mounted on the eccentric shaft and several pins attached to the rotor and extending from the rotor to the interior wall of the housing. A continuously arcuate track is disposed within the interior wall of the housing, and the pins are disposed within the track.
Claims8
A rotary device comprised of a housing comprising a curved inner surface in the shape of a trochoid and an interior wall, an eccentric mounted on a shaft disposed within said housing, a first rotor mounted on said eccentric shaft which is comprised a first side and a second side, a first pin attached to said rotor and extending from said rotor to said interior wall of said housing, and a second pin attached to said rotor and extending from said rotor to said interior wall of said housing, and a third pin attached to said rotor and extending from said rotor to said interior wall of said housing, wherein:
- (a) a continuously arcuate track is disposed within said interior wall of said housing, wherein said continuously arcuate track is in the shape of an envoluted trochoid,
- (b) said first pin has a distal end which is disposed within said continuously arcuate track,
- (c) said second pin has a distal end which is disposed within said continuously arcuate track,
- (d) said third pin has a distal end which is disposed within said continuously arcuate track,
- (e) said distal end of said first pin is comprised of a shaft disposed within a first rotatable sleeve,
- (f) said distal end of said second pin is comprised of a shaft disposed within a second rotatable sleeve,
- (g) said distal end of said third pin is comprised of a shaft disposed within a third rotatable sleeve,
- (h) said rotor is comprised of a multiplicity of apices, wherein each such apex forms a compliant seal with said curved inner surface, and wherein each said apex is comprised of a separate curved surface which is formed from a strip of material pressed into a recess,
- (i) said curved inner surface of said housing is generated from an ideal epictrochoidal curve and is outwardly recessed from said ideal epitrochoidal curve by a distance of from about 0.05 to about 5 times as great as the eccentricity of said eccentric,
- (j) the diameter of the distal end of each of said first pin and said second pin is from about 2 to about 4 times as great as said eccentricity of said eccentric,
- (k) each of said first pin, said second pin, and said third pin extends from beyond said interior wall of said housing by from about 1 to about 2 times the diameter of each of said pins.
A rotary device comprised of a housing comprising a curved inner surface in the shape of a trochoid and an interior wall, an eccentric mounted on a shaft disposed within said housing, a first rotor mounted on said eccentric shaft which is comprised a first side and a second side, a first pin attached to said interior wall of said housing and extending from said interior wall of said housing to said rotor, and a second pin attached to said interior wall of said housing and extending from said interior wall of said housing, wherein:
- (a) a continuously arcuate track is disposed within said rotor, wherein said continuously arcuate track in the shape of an envoluted trochoid,
- (b) said first pin has a distal end which is disposed within said continuously arcuate track,
- (c) said second pin has a distal end which is disposed within said continuously arcuate track,
- (d) said distal end of said first pin is comprised of a shaft disposed within a first rotatable sleeve,
- (e) said distal end of said second pin is comprised of a shaft disposed within a second rotatable sleeve,
- (f) said rotor is comprised of a multiplicity of apices, wherein each such apex forms a compliant seal with said curved inner surface, and wherein each said apex is comprised of a separate curved surface which is formed from a strip of material pressed into a recess,
- (g) said curved inner surface of said housing is generated from an ideal epictrochoidal curve and is outwardly recessed from said ideal epitrochoidal curve by a distance of from about 0.05 to about 5 times as great as the eccentricity of said eccentric,
- (h) the diameter of the distal end of said first pin and said second pin is from about 2 to about 4 times as great as said eccentricity of said eccentric;
- (i) each of said first pin and said second pin extends beyond a side of said rotor by from about 1 to about 2 times the diameter of each of said pins.
Dependencies are inferred from the claim text.