Vehicle with Hydrostatic Transmission

摘要

A vehicle 10 includes a prime mover engine 15, a drive wheel 16, and a hydrostatic transmission 20. The prime mover engine 15 has a substantially vertical prime mover output shaft 18. The hydrostatic transmission 20 has a hydraulic pump 24 with a substantially vertical pump input shaft 28. A drive link 31 drivingly connects the pump input shaft 28 to the prime mover output shaft 18, The hydraulic motor 25 has a substantially vertical output shaft 30. An interface connector 32 establishes fluid pressure communication between the hydraulic pump and the hydraulic motor. A gear set is intermediate the hydrostatic transmission 20 and drive wheel 16. The gear set includes a vertically disposed bevel gear 41 drivingly connected to the motor output shaft 30 and a horizontally disposed bevel gear 42 drivingly connected to the drive wheel 16.

主权项

1. A vehicle comprising a prime mover engine, at least one drive wheel, a hydrostatic transmission associated with each drive wheel, and a gear set intermediate each hydrostatic transmission and associated drive wheel,
the prime mover engine having a prime mover output shaft with a longitudinal axis, the hydrostatic transmission having a hydraulic pump, the hydraulic pump having a pump input shaft with a longitudinal axis generally parallel to the longitudinal axis of the output shaft of the prime mover, a drive link drivingly connecting the prime mover output shaft to the pump input shaft, the hydraulic motor having a output shaft with a longitudinal axis generally parallel to the longitudinal axis of the output shaft of the prime mover, an interface connector intermediate the hydraulic pump and the hydraulic motor, the interface connector having passages establishing fluid pressure communication between the hydraulic pump and the hydraulic motor, the gear set including a first bevel gear rotatably disposed about an axis generally parallel to the longitudinal axis of the output shaft of the prime mover, the first bevel gear being drivingly connected to the motor output shaft, and a second bevel gear rotatably disposed about an axis generally perpendicular to the longitudinal axis of the output shaft of the prime mover and being drivingly connected to the drive wheel.