| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the coaxiality between a first drive shaft insertion hole formed in a pump body and a second drive shaft insertion hole formed in a pump cover. <P>SOLUTION: First and second positioning pins 59, 60 protruding toward a pump cover 49 side are tightly fixed into the pump body 46 by the press fit. First and second pump cover side positioning grooves 53, 54 to be fitted into these first and second positioning pins 59, 60 are formed in an outer peripheral surface 52 of the pump cover 49. Then, assembling for positioning the pump body 46 and the pump cover 49 together by allowing outer wall surfaces 53a, 54a of the first and second pump cover side positioning grooves 53, 54 to abut against the first and second positioning pins 59, 60 is performed in the same condition, when the first and second drive shaft insertion holes 48, 50 are co-processed and when reassembling after the co-processing. <P>COPYRIGHT: (C)2012,JPO&INPIT |
