| 摘要 |
A pressure equalizer valve and reversible flow logic system are provided for reversible fluid motors that are connected in series. The pressure equalizer valve is effective to bypass a small quantity of fluid from the source of fluid pressure to the junction between the motors or from the junction between the motors to a low pressure conduit. This bypassing of fluid is effective to provide equal or proportional operating pressures across the fluid motors, to prevent cavitation of the downstream fluid motor, and to act as a fluid differential for the fluid motors when propelling a vehicle that is making a turn. The logic system provides reversible flow fluid communication between the fluid motors and the equalizer valve so that the equalizer valve functions properly when the fluid motors are reversed. |
