| 摘要 |
PROBLEM TO BE SOLVED: To provide oil pump structure in which an oil passage in an engine case is formed by small work. SOLUTION: The oil pump structure comprises an oil pump 45, a pump housing 49 housing the oil pump 45, and a pump drive shaft 53 driving the oil pump 45. An oil suction passage 70 and an oil delivery passage 71 are integrally formed in the pump housing 49 so that they are in parallel with the pump drive shaft 53, an oil inlet passage 65 is formed integrally with the engine case 21b, and the pump housing 49 is attached to the engine case 21b to connect the oil inlet passage 65 with the oil delivery passage 71. COPYRIGHT: (C)2007,JPO&INPIT
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