| 摘要 |
<p>A hydraulic motor that can be operated in both directions, the hydraulic motor comprising two two-way hydraulic ports each of which can be connected, selectively depending on the direction of rotation in which the motor is to be actuated, either to a source of pressurized liquid or to a device for collecting the liquid at a lower pressure, the hydraulic motor comprising a drain port communicating with an interior space of the motor case, which comprises: an intermediate pipe into which the drain pipe of the case opens, a first non-return valve positioned between the intermediate pipe and a first two-way hydraulic port and able to open toward the first two-way hydraulic port; and a second non-return valve positioned between the intermediate pipe and a second two-way hydraulic port and able to open toward the second two-way hydraulic port.</p> |
