Traction drive automatic transmission for gas turbine engine driveline
Patent
·
OSTI ID:865014
- 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.
- Assignee:
- Ford Motor Company (Dearborn, MI)
- Patent Number(s):
- US 4449423
- OSTI ID:
- 865014
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/475/
arranged
automatic
automatic transmission
axis
axis transverse
axle
carry
centerline
clutch
common
common axis
continuously
continuously variable
converter
coupling
drive
drive gearing
drive unit
drive wheel
drive wheels
driveline
driving
embodiment
engaging
engine
final
final drive
gas
gas turbine
gearing
gearset
hydraulic
impeller
joins
lockup
longitudinal
mounted
operation
output
overdrive
parallel
position
produced
produces
range
ratio
ratios
respect
rollers
set
shaft
shafts
speed
speed range
speed ratio
speed ratios
splitting
starting
torque
torque converter
traction
traction drive
traction unit
transaxle
transmission
transversely
turbine
turbine engine
unit
variable
varying
vehicle
wheeled
wheels
arranged
automatic
automatic transmission
axis
axis transverse
axle
carry
centerline
clutch
common
common axis
continuously
continuously variable
converter
coupling
drive
drive gearing
drive unit
drive wheel
drive wheels
driveline
driving
embodiment
engaging
engine
final
final drive
gas
gas turbine
gearing
gearset
hydraulic
impeller
joins
lockup
longitudinal
mounted
operation
output
overdrive
parallel
position
produced
produces
range
ratio
ratios
respect
rollers
set
shaft
shafts
speed
speed range
speed ratio
speed ratios
splitting
starting
torque
torque converter
traction
traction drive
traction unit
transaxle
transmission
transversely
turbine
turbine engine
unit
variable
varying
vehicle
wheeled
wheels