| 摘要 |
A gear pump 10 with a driven gear 20 has a gear shaft 32 passing through the driven gear 20, and a stationary journal bearing 34. There is a fluid film 52, between a surface of the stationary journal bearing 34 and a surface of the gear shaft 32, and a hybrid pad 50 on the stationary journal bearing 34. The recess 50 has a minimum leading edge angular location on the stationary journal bearing 34 of 41.5° and a maximum trailing edge angular location on the stationary journal bearing 34 of 54.5° from the bearing flat 56. The gear pump 10 also includes a porting path for supplying high pressure fluid 11 from a discharge of the gear pump 10 to the fluid film 52 at the section 50. A porting path may be formed of a discharge face, a radial spool cut 46, an axial hole and a capillary port 48. |
