Infinitely variable ratio transmission

Patent · Tue Feb 21 04:00:00 EST 1989

OSTI ID:6302228

Geppert, E F

A variable ratio vehicle transmission is described whose gear ratio is determined essentially only by torque on the output shaft of the transmission, comprising: a housing fixed in the vehicle; a power input shaft entering one end of the housing; a power output shaft entering the other end of the housing; a planet carrier mounted concentrically on the input shaft; a planet shaft mounted rotatably to the planet carrier; planet gears fixed coaxially to the planet shaft, one planet gear being a power transferring gear, a second planet gear being a reaction planet gear; a brake means rotatable about the input shaft sleeve for controlling the rate of rotation of the reaction planet gear about the planet shaft axis when the reaction planet gear orbits about the input shaft axis, the brake means having an inhibitor means for providing a substantially constant drag against rotation of the brake means about the input shaft; the brake means having a disk-like wall encircling the input shaft and a brake gear meshed with the reaction planet gear; the inhibitor means having two sets of annular friction disks disposed between the disk-like wall and the one end of the housing; the transmission further comprising means for operatively connecting the transferring planet gear to the output shaft.

• Assignee: Secretary of the Army, Washington, DC
• Patent Number(s): US 4805489
• OSTI ID: 6302228
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
ALIGNMENT
BRAKES
DESIGN
DRAG
GEARS
MACHINE PARTS
MECHANICAL TRANSMISSIONS
MOTION
OPERATION
ROTATION
SHAFTS
SYNCHRONIZATION
TORQUE