Gear Lubrication/Cooling TRIZ Cases

Spray plate disperses coolant through housing walls to reach nested friction disk packs, resolving tight packaging constraints that block direct fluid delivery.

A cooling water jacket cools an electric machine stator and a transmission housed within the machine.

Segmented baffles manage fluid levels in the axle sump to prevent gear overflooding while maintaining necessary lubrication.

A secondary bypass valve pre-fills a downstream chamber via a controlled leakage channel, reducing oscillation of the primary control valve during cold starts.

Central housing part delimits an oil receptacle to lubricate bearings and guide fluid flow within a transmission device.

A contamination model calculates oil dirt levels using pump flow and clutch energy data to control hydraulic filtration.

Radial slots in the aluminum flange engage washer tabs to prevent rotation, while cast iron carriers maintain strength against wear.

Direct meshing of the pump pinion with the ring gear eliminates additional gears, reducing weight and manufacturing costs in electric vehicle transmissions.

Conditional electronic oil pump operation directs fluid to specific components, reducing fuel inefficiency from constant gear immersion.

Stationary lubricant line delivers fluid directly to spindle and rolling elements in rotating nut ball screw drives.

Emergency oil supply unit maintains hydraulic pressure via a second channel, enabling limp home mode operation after electric pump failure.

A floating needle roller bearing supports the electric machine shaft to reduce circumferential velocity at the seal interface.

Parallel flow paths divert fluid for debris detection, resolving integration complexity in rotorcraft powertrains.

A transmission shaft uses an internal pipe to channel lubricating oil via centrifugal force for targeted delivery.

An external lube circuit supplies fluid to transmission components via a coupling mechanism, ensuring lubrication during towing when the internal pump stops.

A drive unit assembly uses a universal differential housing to couple input and output elements for power transmission.

A continuously variable transmission integrates a lubricant manifold with the main axle to supply oil directly to internal components.

Active solenoid valve control prevents fluid contact with rotating components, reducing aeration and spin losses.

A partitioning member holds a working oil supply pipe via an integrated overhanging and dented structure.

External fluid pump reduces parasitic drag and packaging volume in limited slip differentials.

An omega-shaped belt entangles the linear axis element with a damping layer, neutralizing bending moments and dissipating vibrations from fast acceleration.

A gearbox distributor part channels lubricating oil through supply channels to bearings.

A lubrication flow calculation unit determines dynamic flow rates for a rotorcraft gearbox based on real-time sensor inputs.

A ball screw maintenance device uses a suction tube and concentration trough to remove contamination from the nut interior.

A transmission control module adjusts pump speed based on vehicle acceleration data to maintain fluid circulation.

A differential cover uses segmented oil retaining and lightening portions to manage lubricant distribution across gear surfaces.

A water and glycol mixture with suspended graphite particles cools transmission gearwheels.

A lubricating oil composition blends synthetic base oils with polyamide or polyol ester additives to enhance gear and clutch performance.

Third oil storage part positioned above first and second parts enables gravity-driven lubricant return to maintain stable oil levels.

Segmented collectors on a shared base direct fluid to consumers, resolving lubrication gaps during stationary or towing states.

Oil discharge grooves in disc shrouds use centrifugal force to remove lubricant, reducing stirring resistance and improving fuel efficiency at high speeds.

A unified fluid collecting device distributes lubricant to separate planetary gear sets, eliminating axial bearings and reducing overall transmission size.

Upward-projecting sump boss with radial grooves enables complete oil drainage while maintaining vehicle ground clearance.

A grease retaining portion holds lubricant near the sun gear contact area to reduce rotational friction in drive transmission units.

Segmenting oil delivery into separate pumps prevents excessive energy consumption while maintaining high pressure for reliable component lubrication.

Segmenting the axle lubrication system minimizes churning losses while maintaining reliable film formation.

Segmented covering walls reduce power losses from air-oil swirling by maintaining localized vacuum without increasing device complexity or energy consumption.

A gear mechanism holder integrates a pressed lubricant carrier to deliver continuous oil supply to bearing points.

This final drive protects the electric motor from road debris by positioning it above the casing, using a lubricant passage to supply reduction gears without exposing them.

A screw-driven fan rotates blades to generate airflow for heat dissipation.

A transmission reservoir minimizes oil churning losses by capturing lubricant through a centrifugal inlet system and returning it via a gravity outlet.

A vehicle cooling device directs fluid flow between a flow-guiding apparatus and motor oil sump to enhance heat transfer.

An enveloping wall with internal cooling channels separates coolant flow from lubricant, reducing power losses caused by air-oil turbulence.

A hydraulic control system manages transmission range selection using solenoid valves and servo actuators to position gears.

An upstream communication portion and wall member discharge oil from the differential chamber to prevent flow back and reduce stirring resistance.

Segmented oil passages guide flow from central body to legs while centrifugal discs return oil radially outward, reducing churning losses on inclines.

Segmented oil chambers use gravity-driven overflow passages to maintain clutch immersion, reducing starting load and power loss during engine restarts.

A spiral slot on the motor shaft forces lubricant into the transmission chamber, preventing leakage into the motor unit and avoiding seal damage.