TWO-SPEED PLANETARY TRANSMISSION HAVING NESTED INDEPENDENTLY

摘要

A two-speed planetary transmission is shown with ring gear (19) and clutching brake (16) actuated by a piston (20) slidable on an intermediate member (35) with return spring (28). A clutch (47) connects the sun gear (51) to the carrier (49). The intermediate member (35) actuates the clutch (47) by return spring (28) through thrust bearing (45) when the piston (20) is in a non-engaged position. The carrier (49) is connected to a second sun gear (54). Associated fluid passage (15) and port (32) hydraulically actuate the piston (20).