Transmission Elements TRIZ Cases
- Three-Speed Planetary Gear Reducer for EV Torque and Packaging
Nested planetary gear sets and selective clutches deliver three EV drive ratios for sustained torque without bulky gearbox packaging.
- Three-Speed Planetary Gear Reducer for High-Torque EV Drive
Two nested planetary gear sets and four clutches deliver high EV torque across speeds without the complexity of conventional multi-speed gearboxes.
- Two-Part PTO Shim for Precise End Play Adjustment
A rotatable two-part shim lets PTO assemblies set bearing end play in one build, avoiding repeated teardown and shim stocking.
- Two-Speed Planetary Gear Reducer for EV Torque and Packaging
Dual planetary gear sets and selective clutches deliver high off-road torque and efficient road-speed operation within tight EV drive-module space.
- Four-Raceway Friction Transmission for Stable Planetary Support
A four-raceway support layout stabilizes the planetary rolling element and cuts manufacturing cost by removing extra shaft members.
- Hybrid Gear-Double Ring Transmission for Stepless Ratio Control
By combining gear, double-ring, and hydraulic paths, this transmission widens ratio range while preserving stepless speed control and efficiency.
- Variable-Ratio Door Opener for Fast Appliance Door Release
A multi-stage rack-and-pinion door opener varies pusher speed and force to overcome latch resistance without a larger motor.
- Power-Split Transmission Layout for Faster Tractor Gear Shifts
A hydrostatic-planetary transmission layout cuts hydraulic pump swing angle during shifting, shortening gear changes while keeping a wide speed range.
- Composite Double-Ring Transmission for Stepless Ratio Switching
A clutch-controlled hydraulic and planetary gear layout expands stepless ratio range while balancing transmission efficiency and speed regulation.
- Household Door Opener With Variable Rack-and-Pinion Force Transfer
A variable rack-and-pinion transmission gives high initial opening force, then faster door motion without using an oversized motor.
- Multi-Epicyclic Friction Transmission With Rolling Cones for Higher Torque
Rolling cone assemblies and series epicyclic friction stages raise torque output while preserving power transmission efficiency in EV drives.