| 摘要 |
<p>A pump system (50) for lubricating a bearing (96) in a gear system (36) includes an auxiliary pump (70) connected to the gear system. The auxiliary pump is fluidically connected to the bearing through an auxiliary supply passage (72) and to a reservoir (92) through an auxiliary scavenge passage (76). An auxiliary valve (74) is fluidically connected to the auxiliary supply passage for transferring liquid from the auxiliary pump to the bearing when a pressure in the auxiliary supply passage downstream of the auxiliary valve is less than a particular threshold and for transferring liquid from the auxiliary pump to the reservoir when the pressure in the auxiliary supply passage downstream of the auxiliary valve is greater than the particular threshold. A method for circulating liquid is also included.</p> |
