SWASH-PLATE VARIABLE VOLUME CHAMBER-TYPE FLUID MACHINE

摘要

A swash-plate variable volume-type fluid machine where, without causing the increase in dimensions, weight, and power loss in the machine, fluid leakage is constrained and quietness and durability are achieved by a simple structure. A swash-plate variable volume-type fluid machine (61) has a conical body (3) and a circular plate body (5) that are rotatably and oppositely supported to each other with their center axes being intersected, and a peripheral wall (9) covering an outer periphery of the circular plate body (5) and having a spherical inner peripheral surface. Variable volume chambers (B, C, D) are formed with a contact line (A) between them by providing a partition plate (7) in a groove (17) of the conical body (3) and arranging the conical body (3) and the circular plate body (5) in line so as to be in contact with each other. Fluid is charged to and discharged from charge/discharge holes (31, 33) communicated with the variable volume chambers (B, C, D). A synchronous mechanism (29) is provided in the machine, and the mechanism causes the circular plate body (5) and the conical body (3) to rotate about their respective axes in a manner synchronized to each other.