| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable displacement type piston pump capable of reducing distortion in a casing.SOLUTION: A variable displacement type piston pump includes a front casing 4 which is a part of a pump casing. Swash plate bearing parts 28A, 28B for supporting a swash plate in a tiltable manner are provided at the front casing 4. At an upper part of the front casing 4, bolt holes 26A, 26B are formed, and at a lower part of the front casing 4, bolt holes 27A, 27B are formed. A center point Ga which corresponds to a center location of the swash plate bearing part 28A on a virtual plane passing openings of the bolt holes 26A, 26B and the bolt holes 27A, 27B in the front casing 4 is located on a virtual line Pwhich connects the bolt holes 26A, 27A, and a center point Gb which corresponds to a center location of the swash plate bearing part 28B on the virtual plane is located on a virtual line Pwhich connects the bolt holes 26B, 27B.SELECTED DRAWING: Figure 4 |
