| 摘要 |
PROBLEM TO BE SOLVED: To remarkably improve the strength to the vibration and heat by removably mounting one end of an oil path connecting member of a metallic tubular member, with an outlet of a reservoir tank, and removably mounting the other end with an inlet of a pump for communicating the outlet and the inlet. SOLUTION: A reservoir tank 1 comprises a reflux port 11 for receiving the reflux oil, and an outlet 12 comprising a large diameter part 12a and a small diameter part 12b, and sending the hydraulic oil, and a metallic pump 2 comprises an inlet 21 comprising a large diameter part 21a and a small diameter part 21b respectively having the sizes same as those of the large diameter part 12a and the small diameter part 12b for flowing in the hydraulic oil. An outer diameter of an oil path connecting member 3 having a through hole 31 in an axial direction, is slightly smaller than the outlet 12 and the inlet 21, and an inner diameter thereof is almost same as those. Further a circular groove is formed on an outer periphery, and the seal rings 33 are fitted therein. One end of this oil path connecting member 3 is removably inserted into the large diameter part 12a, and the other end thereof is removably inserted into the large diameter part 21a in a fluid-tight state, to communicate the oil paths of the reservoir tank 1 and the pump 2. |
