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A power transfer device for a motor vehicle having a modular housing assembly which supports a geartrain. A first embodiment of the modular housing assembly includes a case having unitary sidewall with terminal edges defining two opposed openings. The sidewall also defines an interior chamber and th

A power transfer device for a motor vehicle having a modular housing assembly which supports a geartrain. A first embodiment of the modular housing assembly includes a case having unitary sidewall with terminal edges defining two opposed openings. The sidewall also defines an interior chamber and the openings are enclosed by a pair of cover plates. Pillow blocks are used to support the drive components of the geartrain within the chamber and are secured to shelves which extend from the sidewall. Loads created during operation are transmitted from the geartrain to the sidewall. The cover plates are secured to the terminal edges of the sidewall using a plurality of U-shaped spring clamps. A second embodiment of the modular housing assembly includes a box-like case having one open side. A cover plate is used to enclose the geartrain and lubrication fluid within the interior volume of the box-like case. A continuous support shelf is formed from the base of the box-like case and allows loads to be transmitted directly to the box-like case. A third embodiment of the modular housing assembly includes a box-like case having one open side, a cover plate used to enclose the geartrain and a continuous support shelf. Rotary and non-rotary components of the geartrain are entirely contained within the box-like case. Pillow blocks are used to support the drive components of the geartrain.

대표청구항 ▼

[ What is claimed is:] [1.]1. A transfer case for use in a motor vehicle having a power source, and front and rear drivelines comprising:a modular housing assembly having a shelf member adapted for supporting the transfer case;an input shaft adapted to be driven by the power source;a rear output sha

[ What is claimed is:] [1.]1. A transfer case for use in a motor vehicle having a power source, and front and rear drivelines comprising:a modular housing assembly having a shelf member adapted for supporting the transfer case;an input shaft adapted to be driven by the power source;a rear output shaft adapted to drive the rear driveline;a front output shaft adapted to drive the front driveline;a gear reduction unit driven by said input shaft at a reduced speed ratio relative thereto; anda range sleeve coupled for rotation with said rear output shaft and movement thereon between a first position whereat said rear output shaft is coupled for rotation with said input shaft at a direct speed ratio relative thereto and a second position whereat said rear output shaft is coupled to said gear reduction unit for rotation therewith at said reduced speed ratio.