AXIAL PISTON DEVICE

摘要

A housing of an axial piston device is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward a first hydraulic axial piston member. The drain port is arranged so as to bring about such a retained-oil level that a second hydraulic axial piston member, which is disposed below the first hydraulic axial piston member, is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil.

主权项

1. An axial piston device comprising a housing. capable of retaining oil, a first rotational shaft supported by the housing in a rotatable manner around an axial line, a second rotational shaft placed below the first rotational shaft and supported by the housing in a rotatable manner around an axial line, a first hydraulic axial piston member accommodated in the housing while being supported by the first rotational shaft in a relatively non-rotatable manner with respect thereto, and a second hydraulic axial piston member accommodated. in the housing while being supported by the second rotational shaft in a relatively non-rotatable manner with respect thereto,
wherein the housing is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward the first hydraulic axial piston member, and wherein the drain port is arranged so as to bring about such a retained-oil level that the second hydraulic axial piston member is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil.