| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve productivity and to achieve reduction in the cost, size and weight by suppressing increase in the numbers of the manufacturing processes and components of the entire pump, in an oil pump with a variable flow rate having an oil path switching valve for opening and closing an oil pressure return port. <P>SOLUTION: The oil pump with a variable flow rate includes an oil path switching valve 51 and oil pumps 36, 37, disposed separately from one another. Intake ports 36b, 37b and discharge ports 36c, 37c are opened to valve-mounting surfaces formed in the oil pumps 36, 37, respectively. Oil inlets 61, 65 and oil outlets 62, 64 are opened to a body-mounting surface 54 of the oil path switching valve 51, wherein the body-mounting surface 54 matches the valve-mounting surfaces. <P>COPYRIGHT: (C)2012,JPO&INPIT |
