Torque Converter 1
All torque converters are nonservice able.
True or False
False 564
What spins the turbine?
The impeller or pump. 565
What is attached to the input shaft of the transmission?
Torque converter turbine
What determines the actual pressure in the governor circuit?
The position of the governor valve. 606
What do trimmer valves do?
Help avoid shift shock. 607
What assist in creating torque multiplication at low speeds?
Stator 566
How does the over running clutch work?
Springs and roller bearings. 571
Can you flat tow a vehicle with an automatic transmission without doing anything special to protect it?
Yes or No?
No
What are the planetary gearset components?
Sun gear, carrier with planetary pinion gears, ring gear or annulus. 587
What does the inhibitor valve do?
Prevents a second gear to first gear shift if the road speed is too high. 608
What is stall torque on an Allison TC-10?
1.84:1 574
What pushes on the lockup friction disc?
Hydraulically driven piston. 566
Where is the largest amount of fluid in an automatic transmission system?
Torque converter
How is the hydraulic retarder activated?
By the driver when needed. 610
What is needed for the transmission to have a one to one turn ratios?
Lock up torque converter.
Name the five stages of torque converter operation?
Torque multiplication phase, coupling phase, lockup phase, vortex flow, and rotary flow. 574
How does the torque converter get around that small amount of slippage?
Lockup clutch. 566
What is the weak component in the auto transmission that manufactures are trying to no use anymore?
Belts.
What is a standard transmission that is electronically controlled?
Engine torque is transmitted to it using a mechanical clutch. 583
What are some of the notable advantages of a simple planetary gearset?
Constantly meshed gears, gears forces are divided equally, versatility seven gear combinations of speed and direction, additional variations of both speed and direction can be added through the use of compound planetary gears. 587
The three components of a torus consist of what?
Impeller, stator, turbine. 564
What kind of vehicles are variable pitch stators used on?
Specialized equipment used to transport unusually heavy loads in rough terrain. 572
What needs to be done in order to flat tow a car with an automatic transmission?
Drive line or half shafts need removed.
What is a hydro mechanical automatic transmission
a fully automatic transmission that uses no control electronics. Engine torque is transmitted to it by a torque converter and output ratios are optioned using planetary gear sets. Upshifts and downshifts take place with no direct assistance from the driver. 585
What is an electronic automatic transmission?
fully automatic transmission that is controlled by computer. Engine torque is transmitted to it by a torque converter and output ratios are optioned using planetary gear set. Upshifts and downshifts are managed electronically with no direct assistance from the driver. 586