Gearboxes TRIZ Cases

Dual radial and circumferential sump openings collect gear-thrown oil in both rotation directions, cutting reducer churning loss and wear.

An H-shaped drivetrain layout places differential branches and electric machines between chassis spars to save space while extending wheel torque range.

A compact planetary stage pre-reduces high-speed EV motor output so existing gearboxes can use smaller, lighter, lower-cost motors.

Two identical wheel-drive modules replace a mechanical differential to save transverse space while enabling torque vectoring and stronger casing connection.

An H-shaped driveline nests differential and electric drive elements between chassis spars to preserve space while enabling independent wheel torque distribution.

A retrofit adaptor transfer case lets Unimog gearbox upgrades keep the original transfer case, cutting replacement time and cost.

A central-plane gearbox shifts torque across two half-spaces to package twin electric motors in less width and volume while handling high torque.

A protrusion-and-recess shaft support layout increases assembly freedom while preserving positioning accuracy and forming an oil passage for lubrication.

Centrifugal oil guidance feeds a shaft bearing through an offset-section channel, reducing leakage while maintaining lubrication and cooling.

Separate oil chambers and a shaft oil seal keep terminal block insulation while shortening the vehicle drive layout and lubricating gears effectively.

Thrust bearings and asymmetric gear-case wall thickness help an in-wheel motor resist helical gear loads without adding excess weight.

A baffle plate creates separate oil levels around the planetary gear set to cut agitation resistance while maintaining lubrication and compact height.

Independent passages in a partition wall balance lubricating liquid between dual gear chambers, preventing dry zones near the wall during turns.

A defined gutter-to-gearbox volume ratio improves lubricant scavenging while limiting windage, heat, weight, and gearbox volume growth.

Circumferential projections and centering ribs align the feedthrough element to prevent lubricant ingress and sealing leaks in gearbox couplings.

A plastic-and-steel dual nut cuts lead screw noise in normal sliding while locking the seat to the rail during collisions.

An off-axis motor layout shortens e-axle length while preserving torque, power delivery, and space for lubrication and vehicle subsystems.

A dual-port pump and valve layout keeps gearbox and motor lubrication stable during vehicle tilt, preventing air suction and cavitation.

Tuned lateral, bending, and torsional stiffness in gearbox mounts reduces edge loading, improves alignment, and extends component life.

An integrated catch tank and tray guides oil to meshing gears from two directions, improving lubrication and cooling with fewer parts.

Concentric flange alignment with the eccentric part evens thrust load in a speed reducer, reducing deformation and improving durability.

A lateral PTO layout shortens the gear transmission path from the engine, reducing power loss while simplifying auxiliary power takeoff.

A coaxial planetary and differential layout uses the ring gear as the input element to achieve high reduction ratio with lower radial and axial size.

A gutter below a partition-wall through hole returns oil to a remote storage part, improving low-speed transmission lubrication without baffle plates.

A recessed stepped utility bed stores a spare wheel while angled troughs and drains route water away from hot vehicle components.

A coaxial double clutch and speed shifting layout replaces bulky planetary gears to deliver compact two-stage reduction and stable torque vectoring.

A three-point bearing with two gearbox-side mounts and one stator-side mount cuts axle drive package space and material while maintaining torque support.

Relief valves in the carrier box hydraulic circuit release pressure buildup to prevent unintended box movement and ensure controlled stopping.