| 摘要 |
In order to create a medium pump (100), in particular a lubricating oil pump for a motor chain saw, comprising a pump case (1) with a pump cylinder (14) and a pump piston (6) positioned displaceable in the pump cylinder (14) in direction of a pump axle (19), removable on one side, whereby the pump piston, by rotation about the pump axle (19) by running off an oblique control surface (7) placed on the pump piston (6) on a control head (16) of an adjustable pump lift adjusting device (8) realizes axial pump movements against the pressure of a first spring (4), whereby the pump lift adjusting device (8) is positioned removable in a guide (11) placed transversely to the pump axle (19) and fixedly connected with the pump case (1), pump which can be disassembled, cleaned, put together again and fitted again practically without any tool, it is proposed that the pump lift adjusting device (8) can be removed out of the guide (11) without any tool and the pump piston (6) in the pump cylinder (14) can be removed freely out of the pump case (1) against the pressure of the first spring (4) by the pump lift adjusting device (8) out of the guide (11).
|
