| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic pump which enables common use by having a high degree of freedom in application of a servo unit and can enhance the degree of freedom in layout.SOLUTION: A housing 3 is formed such that a servo unit 2 for adjusting the tilting direction and the tilting angle of a movable swash plate 6 is detachably mounted. In a port block 10, there are provided a pair of main ports Pb, Pe and a pair of main oil passages ML1, ML2 which put the pair of main ports Pb, Pe into communication with a cylinder 40a in a cylinder block 40, respectively. The pair of main ports Pb, Pe are used for forming a hydraulic stepless transmission device while being connected to a hydraulic motor M, which is provided apart from a hydraulic pump 1, through external piping.SELECTED DRAWING: Figure 8 |
