| 摘要 |
A gerotor pump (1) comprising;
—� a housing (2) which comprises a first and a second supply socket (18a, 18b; 19a, 19b),
—� an inner rotor (4); and
—� an outer rotor (5) rotatably located relative the housing (2);
wherein the inner rotor (4) is located within the outer rotor (5), and lobes (13, 14) of the inner and the outer rotor (4, 5) engaging, the inner rotor (4) is centred around an axis (15b) which is eccentric from an axis of rotation (15) of said outer rotor (5), wherein a pressure chamber (7) with a high pressure and a low pressure section, is defined between the inner and outer rotor (4, 5), characterised in, that
the inner rotor (4) is rotatably arranged on a shaft cylinder (10b) which is fixed at one end of a central drive shaft (10) of the pump (1) and is centred about said rotational axis (15b), whereby said inner rotor (4) wanders in said outer rotor (5) when said central drive shaft (10) is turned, and wherein
the inner rotor (4) is provided with radial supply conduits (9) extending from the pressure chambers (7) to the shaft cylinder (10b), and wherein
said shaft cylinder (10b) is provided with at least a first and a second cylinder opening (16, 17), such that the first cylinder opening (16) is axially displaced relative the second cylinder opening (17), and said first opening (16) is arranged such that it is connected to said high pressure section, and said second cylinder opening (17) is arranged such that it is connected to said low pressure section. |
