HYDROMECHANICAL TRANSMISSION AND ASSEMBLIES

摘要

A motor vehicle (10) includes a hydromechanical powersplit transmission (11), a prime mover (13), an engine drive shaft (14), drive wheels (15), a differential (16), a differential drive shaft (17), and frame rails (18). The transmission (11) includes a connecting plate (25) having a hydraulic side (25a) with a pressurized hydraulic chamber (36) filled with hydraulic fluid and a gear set side (25b) with an atmospheric pressure gear side chamber (37) partially filled with lubricating oil. The connecting plate (25) provides a hydraulic manifold. A prime mover input shaft (41), (62) extends through the hydraulic chamber (36) and connecting plate (25) and is drivingly connected to one of the planetary gear components (71). Hydraulic pump motor units (42), (43) include hydraulic pump motor unit drive shafts (44), (45) that extend through connecting plate (25) and are drivingly connected to planetary gear components (71).