| 摘要 |
A gerotor pump can have a particularly short axial length by fixing the main shaft 18 in the body 10 (instead of journalling it in the body) and journalling the rotor 16 directly or indirectly on the shaft (instead of making the rotor fast with the shaft). A gear 24 transmits drive to the rotor via dogs 28 and the rotor engages an annulus 14. In another arrangement (Fig 3), the drive gear has an axial extension (38) journalled on the fixed shaft 18 and is keyed or splined at (46) to the rotor which surrounds the extension. In a further arrangement (Fig 5), the drive gear is splined at (60) to the annulus. <IMAGE> |
