| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: invention relates towing pump incorporating oil feed channel. Proposed pump comprises housing with circular pump chamber, rotor to revolve off-center relative to pump chamber center and wing driven by rotor to continuously divide pump chamber into multiple sub chambers. Rotor feature oil feed channel arranged to intermittently communicate with pump chamber. Lubricating oil is intermittently fed in pump chamber via oil feed line. Rotor has air channel, while oil feed channel communicates with pump chamber when rotor revolves. Aforesaid air channel allow communication between pump station and the housing outer side. ^ EFFECT: improved performances. ^ 7 cl, 5 dwg |
