| 摘要 |
A positive displacement pump (10) is provided. The pump (10) includes a housing (12), and first and second meshed rotors (54, 56) rotatably disposed in the housing (12) and arranged to transform relatively low-pressure inlet port air into relatively high-pressure outlet port air. The pump (10) additionally includes first and second meshed timing gears (36, 38) fixed relative to the first and second rotors (54, 56), respectively, for preventing contact between the first and second rotors (54, 56), and sufficiently enclosed to generate a flow of lubricating fluid. Furthermore, the pump (10) includes an input drive (11) adapted to be rotatably driven at speeds proportional to speeds of an internal combustion engine (2) and arranged to drive the first and second timing gears (36, 38). |
