| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve cooling efficiency of first and second hydraulic pump units housed in a common housing while reducing the size of the common housing as far as possible, in a pump device having a pair of trunnion type movable swash plates. <P>SOLUTION: Oil can be stored in the internal space of the common housing, and the internal space is partitioned into a pump housing chamber and a gear housing chamber by a partition wall. A support wall is disposed to the pump housing chamber, and each base end part of the pair of trunnion type movable swash plates is supported by the support wall so that operating end parts of the pair of trunnion type movable swash plates direct in opposite directions. The oil introduced into the common housing flows from one side of the pump housing chamber with reference to the partition wall and is discharged to the outside through the other side of the pump housing chamber and the gear housing chamber. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
