Traction drive automatic transmission for gas turbine engine driveline

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865014

Carriere, Donald L ^[1]

---

1. Livonia, MI

A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

• DOE Contract Number: P1928150
• Assignee: Ford Motor Company (Dearborn, MI)
• Patent Number(s): US 4449423
• OSTI ID: 865014
• Country of Publication: United States
• Language: English

Related Subjects

traction
drive
automatic
transmission
gas
turbine
engine
driveline
transaxle
wheeled
vehicle
speed
torque
splitting
gearset
unit
converter
common
axis
transversely
arranged
respect
longitudinal
centerline
wheels
mounted
shaft
parallel
carry
final
driving
axle
shafts
embodiment
gearing
produces
overdrive
ratio
output
continuously
variable
range
ratios
produced
varying
position
rollers
starting
set
operation
engaging
lockup
clutch
joins
impeller
hydraulic
coupling
speed ratio
drive wheels
traction drive
automatic transmission
turbine engine
gas turbine
drive wheel
continuously variable
common axis
drive unit
axis transverse
speed range
torque converter
final drive
drive gearing
traction unit
speed ratios
/475/