| 摘要 |
PURPOSE:To simplify piping and make assembling of a pump easy, by directly mounting a control valve block to a side surface of a pump housing, and communicating a pressure line, control line and tank line with the pump housing. CONSTITUTION:A pressure line 23, control line 25 and tank line 24 each formed in a control valve block 20 are connected to respective passages 16, 17 and 19 opening at a side surface of a pump housing 1. the control valve block 20 is directly mounted to the pump housing 1. In the case of FC control and RC control rather than PC control, it is sufficient to independently provide a discharge amount adjusting line and a maximum pressure setting line. In the case of PC control, it is not necessary to provide an external piping, so that the pump may be easily assembled. |
