Gear pumps

Abstract

Abstract 868,544. Gear pumps. BORG-WARNER CORPORATION. Jan. 10, 1958, No. 1044/58. Class 110 (2). The movable end bushings 14, 15 of a gear pump are provided with relief recesses 26, 27 which communicate with the intertooth spaces through conduits 28, 29, 38, 39, 36, 37 and also communicate with the inlet side of the pump through a passage 43 having a spring-loaded ball valve 44. The pump is also provided with balancing grooves 34, 35 in its end bushings together with a passage 25 supplying pressure fluid to the bushings 14, 15. In a modification, Fig. 3 (not shown), communication with the intertooth spaces is effected by passages in the fixed end bushings.

Inventors

• 👤 James Albert Compton

Bibliographic Details