| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve a conventional expensive arrangement having many items of component which is completed by combining a motor unit and pump unit which are so far prepared separately. SOLUTION: A single shaft 6 serves commonly to a rotary shaft 4 of motor 2 and a rotary shaft of pump 3 and is supported by a first and a second rolling bearings 24, 25. The coupling part 6d of the shaft 6 is inserted into a coupling hole 38 in the driving gear 13 of the pump 3 and coupled fast by spline, serration key, etc. The end wall 9 of a motor housing 7 serves also as end wall of a pump housing 10, and the pump 3 uses only one side plate 15.</p> |
