| 摘要 |
<p>PURPOSE: To reduce the manufacturing cost including a housing means having a fluid inlet and outlet means. CONSTITUTION: A valve housing part 21 is provided with an outer housing part 61 provided with an approximately cylindrical inner surface 63 and having a fluid inlet port 65 and a fluid outlet port 67. A fluid passage 69 to communicate the port 65 with the inner surface 63 and a fluid passage 71 to communicate the port 67 and the inner surface 63 are formed on the part 61. An inner housing part 73 provided with an approximately cylindrical outer surface is provided on a valve housing 21. Since a meter passage 59 is formed in cooperation with the parts 73 and 61 by press fitting the inner housing part 73 in the outer housing part 61, the meter passage need not be machined. By providing the outer housing part 61 of relatively large wall thickness, the rated fluid pressure of a motor can be received without large deflection or expansion in the radial direction, and by providing the inner housing part 73 of relatively small wall thickness, its outer surface is closely attached to the inner surface 63.</p> |
