Gear Lubrication/Cooling TRIZ Cases

Multi-speed transmission system with odd and even drive trains prevents belt slipping on slopes.

Threaded connectors secure the bulkhead fitting to prevent unthreading under vibration, ensuring consistent lubrication.

A differential case unites carrier, cover, and ring gear through a circular groove weld zone.

A heat exchanging device with a flow control mechanism that decreases operating oil flow to promote transmission oil temperature rise.

A planetary roller transmission uses an annular flange ring to create a dedicated oil storage portion for consistent lubricant supply.

A passive thermal valve adjusts hydraulic fluid flow through a heat exchanger based on temperature conditions.

Thermal energy recovery system extracts waste heat from aircraft gearbox lubricating oil to warm the passenger compartment.

Segmenting the pin into an inner body and outer sleeve eliminates complex drilling, reducing manufacturing costs while delivering lubricant.

A variable displacement pump adjusts fluid flow based on real-time pressure and temperature signals.

A passive lubrication system circulates oil through a gear drive using mechanical paddles and diverters driven by planetary rotation.

An inclined air intake duct connection port on a V-belt continuously variable transmission case streamlines the airflow path.

A rear axle pump reduces cold-start turbulence by entraining gas into the lubricant, lowering density and frictional drag.

Thermoelectric cooler mounted to screw nut absorbs heat from ball screw assembly, eliminating liquid cooling complexity and weight penalties.

Clutch mechanisms engage parallel gear pairs in a power take off drive train, enabling economy mode switching under load to reduce fuel consumption and noise.

Inclined support shafts stabilize oil-containing rollers in planetary roller power transmission devices.

A transmission pump prevents cavitation at elevated speeds by using a relief valve to redirect flow during cooler restrictions.

Outward protrusions on a gap adjustment member align with recessed grooves to prevent axis misalignment during assembly.

A lubricant regulating system controls fluid flow to pinion bearings via a conduit regulator.

Segmented main and sub pumps fill the torque converter rapidly while regulating hydraulic pressure for stable transmission control.

A pair of non-intersecting helical grooves on a gear support face generates screw pump action for reliable lubrication.

Variable oil level management reduces churning losses while maintaining component reliability under varying torque and temperature conditions.

A rotating oil distribution system transfers lubricant through flexible connecting pipes to maintain fluid supply during operation.

A lubricant composition uses a tertiary amine with long alkyl chains to boost static friction in automatic transmissions.

Heating elements positioned directly in the lubricating oil flow of meshing gears reduce friction and splashing losses.

A movable jalousie divider segregates engine oil volumes to accelerate warm-up times.

Spraying lubricating oil through supply holes in the flexible gear trunk prevents suction from negative pressure during high-speed rotation.

Rotational pressure from transmission components supplies oil to clutches, reducing churning losses and housing complexity.

An internal lube tank with a pump or expandable bladder controls fluid levels in vehicle differentials, reducing oil loss and heat buildup.

An automatic transmission uses a unified carrier body and axial inlet to feed lubricant directly to outer planetary gear bearings, reducing device complexity.

Separating hydrostatic movement from mechanical tool drive reduces power dissipation and component costs while maintaining continuous speed control.

A hydraulic circuit uses a primary pump to draw fluid from a transmission sump and generate pressurized flow for the output transfer group.

Longitudinal grooves guide lubricant from radial depots to gear tooth flanks, preventing grease displacement and reducing heat load.

A gearbox assembly uses a lubricant impoundment to supply a secondary flow path, maintaining rotorcraft transmission reliability during oil-out scenarios.

Ring gear conveys oil to an electric motor, eliminating pump complexity and wear.

A gear baffle channels fluid from rotating gears through flow ports, reducing drag losses and minimizing aeration in transmission systems.

A dual heat exchanger cools transmission lubrication oil by exchanging heat between separate oil circuits and cooling water.

A transmission support structure directs hydraulic oil away from frictional engaging plates using a segmented ring-shaped wall and through hole.

A hydraulic control system with manual and default valve assemblies manages gear states through fluid pressure.

A power transmission device repositions a non-speed change shaft circumferentially between the input shaft and shifter mechanism to enable compact assembly.

A gear unit lowers oil levels via a temporary storage receptacle to reduce churning losses while maintaining lubrication.

An oil sump design prevents air introduction during rapid acceleration by using inertial forces to close openings between main and secondary compartments.

A lubricant distribution assembly uses a stagnation dam to control fluid direction based on flow velocity.

An integrated guide directs oil from a lower drive unit discharge port to the ground surface, ensuring reliable discharge regardless of vehicle inclination.

Curved trap plates capture lubricating oil from gears and guide it through tubes to bearings, eliminating internal piping complexity.

Dual slide blocks engage a rotating fan-shaped gear to resolve discontinuous output, doubling grease delivery efficiency.

A pin gear transmission uses a perpendicular motor and motion transfer unit to reduce overall device height.

Thiocarbamate lubricants create inert barrier layers that suppress hydrogen embrittlement-caused flaking in rolling bearings.

Inclined lubrication plates direct oil to gear meshing zones, reducing friction noise and vibration in extra-large excavators.

Segmented drill holes in the housing ring and hollow shaft create discrete oil paths that minimize leakage and pressure drop during transfer.