| 摘要 |
1,035,226. Rotary pumps and motors. SPERRY RAND CORPORATION. April 5, 1963 [May 9, 1962], No. 13585/63. Heading F1F. A reversible rotary-pump, or motor, of the radial-vane type comprises a "cartridge" unit or assembly which includes a rotor 20 (Figs. 1, 3, not shown) having a plurality of outwardly-sliding vanes 24, an abutment or camtrack ring 30, and pressure-loaded cheek-plates or members 32, 34 which include pairs of diametrally-opposite ports 104, 106 and 108, 110 (Fig. 2, not shown) connected by annular chambers 90, 92 with inlet and outlet openings 98, 102 in a housing 12, 14 for said unit. The rotor is mounted on a rotatable shaft 40 which is supported by bearings 43, 44, splines 42 being provided on the shaft to permit axial movement of said unit in a bore 18 between abutments 82, 84 situated adjacent shoulders 76, 78 on the members 32, 34. Pairs of diametrally-opposite ports 120, 122, 124, 126, 128, 130, 132, 134, are formed in the ring 30 to effect communication between recessed ports 112, 114, 116, 118 in the members 32, 34 and the ports 104, 106, 108, 110 with which they are in axial alignment. Said ports are in register with pairs of diametrally-opposite crescent-shaped chambers or zones 60, 62 and 64, 66 between the rotor and the ring. The vanes are urged outwardly by springs 26 in addition to centrifugal action, passages 68 being provided in each vane to equalize pressure on the radially-innermost edges of the vanes with that in said zones. Such equalization is also effected by ports 134, 136, 138, 140 which are formed in the inner faces of the members 32, 34 in register with the innermost edges of the vanes and appropriately connected to the ports 112 to 134 by pairs of intersecting mutually-perpendicular passages 142, 144, 146, 148, 150, 152, 154, 156. The ring 30 and the members 32, 34 are sealed relative to the housing by O-rings 87, 88, 94, leakagefluid being permitted to escape through passages 95, 97 in the shaft and a port 93 in the housing. |
