Multistate differential transmission

Patent · Tue May 30 04:00:00 EDT 1989

OSTI ID:5652155

Whalen, B L

This patent describes a multistate transmission suitable for a colinear configuration having a stationary housing and an input shaft and an output shaft comprising: a first pair of planetary gear trains comprising a first common ring gear having a torque reducing gear train consisting of a sun gear and a planetary gears connected by way of a carrier to the output shaft and a reversing planetary gear train consisting of a sun gear and planetary gears; a second pair of planetary a trains comprising a second common ring gear having a torque reducing gear train consisting of a sun gear and planetary gears connected by way of a carrier to the sun gear in the reversing planetary gear train in the first pair of planetary gear trains and a reversing planetary gear train consisting of a sun gear and planetary gears; carrier means connecting the sun gears in the first pair of planetary gear trains to the housing through a free wheeling clutch to provide for rotation in one direction only and to one side of a first operational clutch. The other side of the clutch is connected to the sun gear in the reversing planetary gear train in the first pair of planetary gear trains; means connecting the planetary gears in the reversing mechanism of the second pair of planetary gear trains to the housing through a second operational clutch and to one side of a third operational clutch. The other side of the third operational clutch is connected to the sun gear in the reversing planetary gear grain in the second pair of planetary gear trains.

• Assignee: NOV; NOV-89-077312; EDB-89-159835
• Patent Number(s): US 4833942
• OSTI ID: 5652155
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
COUPLINGS
DESIGN
GEARS
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION
SHAFTS
TORQUE