Gearboxes TRIZ Cases

A spherical flow element and symmetric vent passages improve powertrain gas release while resisting water intrusion and lubricant leakage.

A spring-return rotary dial uses magnetic position sensing and haptic feedback to simplify direct gear selection without a complex shifter layout.

An oil accumulating chamber and below-level opening feed the differential at startup, improving lubrication while reducing stirring resistance.

Stay-rod modularization and independent lubrication reduce mount plate stress, wear, and maintenance downtime in fracturing pump power ends.

A chambered cover and reed valve vent crankcase and transmission pressure without oil loss, helping reduce wear and maintain efficiency.

A unitary frame with direct housing fasteners redistributes braking torque, vibration, and reaction forces while simplifying EMB actuator assembly.

Separate planetary drive modules with selective ring-gear coupling expand EV gear ratio options while simplifying assembly, repair, and transmission layout.

A coaxial stepped planetary gear layout delivers high reduction in a short axle while reducing interference, vibration, noise, and wear.

Using 1-30% non-food grease fill and a communicating gap, this food-machine gear case reduces fiber abrasion, leakage, and wear.

A caulked lug into a mating recess secures motor-gearbox joints without adhesives or welding, improving repeatability and anti-rotation.

A coupling sleeve and temporary shaft support cut bearing count, power dissipation, wear, and noise while keeping rotor mounting stable.

A direction control valve creates a maintenance bypass that flushes impurities from a gearbox oil circuit without exposing lubrication points.

A deflectable clutch ring lets one lock transmission adapt to left- or right-opening doors while reducing mechanism complexity and extra switches.

A dual-input planetary and auxiliary gear train lets plunger pumps vary speed from constant-speed power sources while supporting stable and high-displacement operation.

Different gap sizes in two reduction stages cut input loss and torque unevenness, improving actuator efficiency with smaller motors.

Selective axial locks and reinforcing bodies let planetary gear pins match torque demand without oversizing, reducing misalignment and efficiency loss.

Open bearing recesses with asymmetric angles enable radial axle insertion, simplify planetary gear assembly, and prevent radial drift.

A defined gutter-to-gearbox volume ratio improves lubricant scavenging while limiting gearbox weight, footprint, windage, and friction losses.

A reducer nested inside a hollow actuator cuts wearable joint assist bulk while preserving stable power transfer and walking support.

A modular housing with a joint-free hub rail improves transmission adaptability while preserving mechanical performance and fast production.

A floating pinion and nested planetary layout raise torque load density and speed ratio while keeping wind gearbox volume compact.

Guided outside air cools the exhaust pipe to limit heat damage around the utility vehicle and reduce deposit buildup.

Circumferential grooves and a radial bore feed grease to the shaft seal while forming a labyrinth barrier against dust and dirt.

Interchangeable input gears and an adaptive motor mount let one gearbox match diverse motor speeds for precise portable machine tool operation.

Guided outside air cools the exhaust pipe and nearby parts to suppress heat damage while also helping prevent deposits on the pipe.

Radial inner-wall projections stiffen a thin gear housing and preserve oil containment with less material and installation space.

A split gear housing uses closed and open annular supports plus an axial bearing to stay compact while handling high torque and axial loads.

Controllable negative pressure enables dry-sump transmission lubrication that cuts off-load friction losses while maintaining reliable gear lubrication.

Rigid guide anchors on a guide rail simplify wind turbine drivetrain maintenance by enabling accurate housing movement without complex support structures.

Distributed inner and outer gearboxes use bevel-linked shafts to cut accessory space and improve mechanical power transfer in turbine engines.

A dual gearbox with inner and outer tower shafts uses bevel gearing to improve accessory power transfer while reducing engine packaging space.

A float valve and impact oil separator keep transmission venting open while blocking water, dirt, and oil droplet escape.

A cavity-filled damper with irregular particulate material cuts drivetrain vibration and tonal noise while staying simple to assemble and retrofit.

A standardized drive flange keeps bearing points accessible across gearbox types, simplifying motor integration, assembly, and maintenance.

Flexible seals and pressure monitoring keep the clutch cavity fluid-tight, preventing water or oil ingress in harsh underwater service.

By nesting the rotor and stator inside the gearbox casing, this case cuts axial space and simplifies aircraft turbomachine assembly.

Raised beads create feed-through passages at different housing positions, cutting unused thickened areas and production cost.

A sealed plug connector lets an in-housing parking lock fit compact EV transmissions while preventing lubricant leakage and easing service.

A wheel-drum-locker mechanism isolates motor inertia and dissociates linear output motion from reverse input rotation in locking gear assemblies.

A stepped pin guide creates radial clearance during gearbox assembly, preventing bearing raceway scratches and extending bearing life.

A Lambda-shaped layshaft and controlled radial stage distance let grinding wheels reach planet gear teeth while keeping the gearbox compact and light.

Coaxial helical toothsets and nested rolling-contact bearings smooth power transfer in compact wheeled-vehicle gearboxes while reducing noise.

A gearbox efficiency rating links oil flow, fan diameter, and thrust to simplify geared turbofan gearbox design and manufacturing.

Controlled axial preload fixes transmission rolling bearings without shims, cutting assembly complexity while limiting noise and vibration.

Excess lubricant is automatically drained from a handheld hedge trimmer gear housing to prevent power overload, overheating, and battery runtime loss.

Open cast lubricant channels are sealed by one end cover to simplify drive assembly while maintaining separate flow paths for lubrication and cooling.

An integral adapter body with multiple bearings and locking rings boosts strength and shaft coaxiality for high-power motor gearbox connections.

A separated oil reservoir in the gearbox housing stabilizes lubrication, cuts churning losses, and limits heat buildup in agricultural machines.

A cycloidal reducer with a permanent magnet synchronous motor enables compact winding drives with precise torque control and shock resistance.

A tuned gear mesh stiffness range helps a geared-fan epicyclic gearbox absorb misalignment errors while improving load share and wear evenness.