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A variable displacement hydraulic pump includes a pump cylinder barrel having a plurality of axially arranged cylinder chambers disposed therein and each cylinder chamber includes a reciprocating piston therein. The pump is rotatably supported by the pump block and a motor block is separable from an

A variable displacement hydraulic pump includes a pump cylinder barrel having a plurality of axially arranged cylinder chambers disposed therein and each cylinder chamber includes a reciprocating piston therein. The pump is rotatably supported by the pump block and a motor block is separable from and connected to the pump block. A hydraulic motor is rotatably supported by the motor block and hydraulically connected to the pump through a pair of continuous passages formed in the pump and motor blocks. The motor includes an axis of rotation substantially perpendicular to an axis of rotation of the pump. A motor includes a cylinder barrel having a plurality of axially arranged cylinder chambers disposed therein and each cylinder chamber has a reciprocating piston therein. A thrust bearing is supported by a portion of the pump and motor block and is receivably engaged with the pistons extended from the cylinder barrel of the motor. A stop member is attached to the portion of the pump and motor block and in contact with the thrust bearing wherein relative movement of the thrust member is restrained by the stop member.

대표청구항 ▼

[ What is claimed is:] [1.]1. A hydrostatic transmission comprising:a variable displacement hydraulic pump including a pump cylinder barrel having a plurality of axially arranged cylinder chambers disposed therein, each said cylinder chamber having a reciprocating piston therein;a pump block, said p

[ What is claimed is:] [1.]1. A hydrostatic transmission comprising:a variable displacement hydraulic pump including a pump cylinder barrel having a plurality of axially arranged cylinder chambers disposed therein, each said cylinder chamber having a reciprocating piston therein;a pump block, said pump rotatably supported by said pump block;a motor block separable from and connected to said pump block; anda hydraulic motor rotatably supported by said motor block and hydraulically connected to said pump through a pair of connected fluid passages formed in said pump and motor blocks, said motor including an axis of rotation substantially perpendicular to an axis of rotation of said pump.