Flow divider assembly

摘要

A flow divider assembly for use with a hydraulic pump provides flow to separate drive motors for use in a vehicle or other application. A pair of flow divider motors may be mounted on a block and have a common axis of rotation. The ratio between the two may be controlled by adjustment of the angles of the respective thrust bearings of the flow divider motors. A valve may connect the outlet of one of the flow divider motors or the outlet of the other flow divider motor. passage to the second outlet passage. Additional bypass valves may be provided to permit direct connection between the hydraulic pump and the separate drive motors.

主权项

1. A hydraulic drive assembly, comprising:
a hydraulic pump; a flow divider assembly hydraulically connected to the hydraulic pump, the flow divider assembly comprising:
a port block having a first face and a second face, opposite to the first face, with a first running surface formed on the first face and a second running surface formed on the second face;a first motor housing engaged to the first face and a second motor housing engaged to the second face;a single motor shaft having an axis of rotation and extending through the port block and having a first end extending into the first motor housing and a second end extending into the second motor housing;a first motor cylinder block rotatably disposed on the first running surface and engaged to the motor shaft, the first motor cylinder block having a first plurality of pistons disposed therein;a first fixed swash plate disposed in the first motor housing and mounted at a first angle with respect to the axis of rotation;a second motor cylinder block rotatably disposed on the second running surface and engaged to the motor shaft, the second motor cylinder block having a second plurality of pistons disposed therein;a second fixed swash plate disposed in the second motor housing and mounted at a second angle with respect to the axis of rotation;a single inlet port connected to the hydraulic pump to provide fluid from the hydraulic pump to both the first motor cylinder block and the second motor cylinder block;a first outlet port connected to the first motor cylinder block and a second outlet port connected to the second motor cylinder block, wherein the first motor cylinder block provides a first level of hydraulic output and the second motor cylinder block provides a second level of hydraulic output; a first drive motor hydraulically connected to the first outlet port and a second drive motor hydraulically connected to the second outlet port, whereby the first drive motor is hydraulically powered by the first level of hydraulic output and the second drive motor is hydraulically powered by the second level of hydraulic output; and a first valve disposed in the port block and connecting the single inlet port with the first outlet port, whereby a user may bypass the first motor cylinder block.