Gear Lubrication/Cooling TRIZ Cases

Localized shaft grooves route lubricating oil and expel foreign matter in planetary gear sliding bearings, reducing seizure and abnormal wear.

Tangential wing formations and recessed washer surfaces lock the thrust washer in place while feeding lubricant to the planet bearing.

Quick-connect evacuation and refill control automate vehicle oil changes, cutting tool use while minimizing spills and burn risk.

A segmented shaft groove routes oil through low-load regions to expel debris and maintain lubrication in heavily loaded planetary gear sliding surfaces.

A wiper and fluid connection return oil across a partition to lower sump level, cut splash losses, and keep bunker fill stable.

Directing nozzle flow into bearing grooves avoids oil collisions in a toroidal CVT, preserving thrust bearing cooling and heat dissipation.

A crescent soft plate oil shield creates a separate bearing oil sump, keeping high-speed axle bearings immersed while limiting gear oil churning loss.

A lower oil reservoir and valve-controlled transfer keep the sump pump immersed on slopes, maintaining lubrication while limiting power losses.

A split oil reservoir below the sump diverts high-velocity return flow to cut turbulence and aeration while improving driveline lubrication.

Semi-hollow gearbox walls hold backup lubricant that seeps during leaks, sustaining component lubrication and heat dissipation after damage.

A conduit with an integrated oil reservoir stores lubricant above the gear to keep transmission bearings fed without a pump during speed changes.

Inclined radial channels fed by a non-coaxial shaft passage keep lubricant flow stable at high rotational speeds while reducing transmission power losses.

A conical, corrugated CVT oil filter expands flow paths to cut pressure differential, reduce jerking, and extend filter service life.

A bypassed control valve in a dual-pump transmission oil unit maintains minimum supply pressure at low speed and high oil temperature.

A single closure cover seals suction, pressure, and feed channels in the housing, cutting assembly steps while maintaining lubricant sealing.

A housing-wall gap guides oil around the torque converter, removing a separate base and cutting radial transmission packaging space.

An oil guard siphon stores a reserve in the gearbox supply line, cutting stop-start lubrication delay and protecting gears and bearings.

Balanced zinc, calcium, and diol or triol additives help gear oils resist low-speed wear and scuffing in heavy-duty transmissions.

Internal weirs and oil reservoirs retain lubricant in the differential case, protecting sliding portions during low-oil startup.

A flexible sealed tube links two gearboxes, maintaining lubricant flow during axial movement while reducing leaks and supporting seal testing.

An internal air-trapping enclosure keeps coolant level sensing stable on slopes and during acceleration, preventing false low-level alarms.

A shaft-driven fan and passive oil pump cool transmission lubricant through integrated coolers, cutting heat without added system complexity.

Variable nozzle cross-sections balance circumferential oil flow in a planetary gearbox, giving bearings more uniform lubrication and temperature behavior.

Axial surface structures in a rotating oil drip pan use centrifugal settling to keep particles out of bearing points in electric axle planetary gearing.

Gravity-fed transmission oil cooling through partition-wall channels and ribs cuts pump energy use while improving heat transfer in EV drivetrains.

Sealed volume regions around the pitch tube keep gear oil away from the generator-side end, reducing overheating risk and easing gearbox oil management.

A hollow fan ring uses suction jet entrainment to boost gearbox cooling airflow while keeping installation space small.

A gravity return channel drains contaminated oil from the gap seal, protecting transmission clutch lubrication when pump pressure is low.

A two-part U-shaped oil distributor captures gear-sprayed oil and redirects it to the axle drive for better lubrication and lower friction.

By placing the temperature sensor in the actuator stator, this case improves clutch temperature estimation without adding housing complexity.

Selective closure of identical oil-line outlets adapts gearbox injection lubrication to different variants without separate pipeline designs.

Varying feed port cross-sections in a lubricant tray balance circumferential oil flow to planetary bearings and reduce temperature differences.

Circumferential recesses and grooves improve oil distribution, axial positioning, and torque transfer between planetary gearsets.

External pipes and an electric pump route cooled rear-circuit oil to the tractor front module, cutting thermal stress without a front-end redesign.

Sensors and a processor trigger pod actuation from sensed conditions, enabling precise fluid output with less manual effort and higher reliability.

Convex rings and matching grooves create a tortuous oil path that maintains pressure and improves sliding bearing lubrication.

A cap-guided oil level uses centrifugal force to keep an EV bevel gear differential lubricated and cooled without added system complexity.

Built-in diversion regions redirect lubricating liquid across differential gears to cut wear, heat buildup, and noise.

A six-port module between the inverter and gearbox combines coolant and oil flow to save EV space and reduce lubrication pressure drops.

Axial and radial thrust-bearing channels with a seal hold oil pressure at the planetary gear end surface, improving sliding bearing lubrication.

A hollow fan ring uses suction-jet airflow to cool a gearbox housing with high flow capacity while keeping installation space low.

A cup-shaped housing redirects radial lubricant flow into a rotating shaft bore, improving lubrication consistency while limiting lubricant loss.

Pressurized lubricant flows through ring ducts and axial discontinuities to cool gear tooth roots while avoiding complex nozzle or spline designs.

An internal auxiliary oil pump actively flushes transmission fluid through the drain hole, cutting service time and improving drainage completeness.

A differential-pressure valve reroutes lubricant between aircraft gearboxes after pressure loss, preserving lubrication long enough to avoid gear failure.

A gear-driven guide channel and elevated reservoir capture splash oil and feed bearings by gravity, maintaining lubrication without a pump.

A two-part hood, guard, and holding frame improve transmission cooling airflow while reducing oscillation and resonance at low cost.

A lowered filter region beneath the upper second supply port pushes air away, reducing air intake and idle discharge delay in electric oil pumps.

Deflector vanes and a collection ring redirect splash oil into housing in-flow openings, improving differential lubrication without pumps.