composite gear boxes.

摘要

Provided is an improved multi-speed compound change gear transmission having an auxiliary section (14) that includes a conventional single fluid chambered splitter gear piston assembly (46) for selectively coupling either a range gear (6) to an output shaft or a splitter range gear (62) to an input shaft of section (14). Section (14) also includes a range piston assembly (48) for selectively coupling a splitter gear (78) or the splitter range gear (62) to the input shaft. Assembly (48) features a pair of tandem fluid chambers (66 and 68) that enable a reduction in the diameter of the fluid chambers from the diameter of the singular chambered piston chamber heretofore used so that at least range piston assembly (48) is able to be protectively enclosed by an auxiliary section housing (50). IMAGE