Gear Lubrication/Cooling TRIZ Cases

Bridge-shaped sealing portion separates upstream and downstream spaces, preventing unfiltered oil leakage through clearance gaps.

Stationary housing ribs intercept splashed lubricating liquid to prevent escape through venting bores and maintain consistent fluid levels.

An electric motor drives a subsidiary pump to pressurize oil for hydraulic control valves, reducing energy waste from over-pressurizing lubrication flow.

A cooling apparatus for hydrostatic transmissions uses spaced protruding members to form through grooves that reduce fluid friction and pressure drop.

A variable baffle opens when fluid force exceeds spring bias, reducing splash and drag losses while maintaining lubrication efficiency.

Housing projections restrict driven sprocket axial movement to eliminate costly ball bearings and snap rings, reducing assembly complexity.

A propulsor gearbox oil cooler circulates lubricant through a heat exchanger positioned in the propeller slipstream to dissipate thermal energy.

A transmission strainer positioned between the side cover and valve body filters hydraulic oil using a vertical inflow portion above the oil surface.

Cooling passages in the planet gear extract waste heat from lubricant agitation, maintaining power transmission efficiency.

Segmented circuits with feedback sensors regulate pressure to maintain cooling and lubrication across all operational modes.

Integrates oil circuit piping within the transmission housing to eliminate external lines, reducing maintenance time and error risk.

Segmented reservoirs maintain differential gear lubrication at startup while lowering oil surface height during travel to minimize energy loss from stirring.

Integrated carrier scupper and passages distribute lubrication to journal bearings, resolving inadequate bearing coverage in planetary gear systems.

Cup-shaped separating section isolates the gear receiving chamber from the reservoir, preventing splash losses while maintaining adequate lubrication levels.

T-shaped asymmetric housings prevent mass rotation to eliminate friction and energy loss while variable-radius pulleys reduce starting torque.

A lubricating oil composition uses specific sulfonate and salicylate detergent ratios to enhance shifting characteristics.

Orifices in the carrier wall route fluid flow around side pinions, eliminating spider shaft wear and extending component life.

Downstream pressure sensors enable dynamic pump power adjustment to maintain stable lubrication films across varying temperature and viscosity conditions.

An independent electric lubrication pump distributes fluid to axle components based on temperature and speed signals.

A high track drive system integrates a planetary gear set and bevel gear assembly within a differential housing to elevate the drive axle shaft.

A closure mechanism regulates oil flow through an outlet opening to minimize churning losses while maintaining efficient lubrication.

Atmospheric vent pipes with controlled airflow resistance prioritize auxiliary reservoir emptying, eliminating unused oil in tractor hydraulic systems.

Reservoir module captures splashed lubricant via conduit to route fluid back to differential bearings, reducing churning losses and frictional drag.

Brazed adapter module merges fluid channels with heat exchanger plates to enable direct vehicle housing mounting.

Integrating an internal oil pump driven by the planetary carrier reduces transmission weight and friction loss from oil splashing.

Replacing mechanical testing with chemical sensing, the integrated probe monitors real-time fluid degradation to prevent engine damage from contaminants.

Integral housing passages and expansions guide fluid flow around meshing gears, reducing power loss from oil churning in hydraulic pumps.

Segmented main, auxiliary, and output pumps maintain fluid pressure for cooling and lubrication when electrical power fails.

Capillary lubricant distribution within satellite rollers provides precise fluid delivery to threaded contact interfaces.

A gear device circulates lubricating oil through an external heat exchanger to regulate fluid temperature and viscosity.

A positive displacement pump uses kidney-shaped cavities to convey oil via rotational direction changes.

A boronated and phosphorylated dispersant modifies dynamic friction in automatic transmission lubricants.

An axial oil transfer passage guides lubricant flow from the case bottom to rotating shafts, minimizing lateral leakage and boosting transfer efficiency.

Segmenting the shaft into a hollow body and low-density core insert reduces mass and machining costs while enabling internal fluid routing.

Segmented primary and auxiliary reservoirs isolate backup lubricant, redirecting flow during pressure loss to prevent gearbox failure.

Offsetting an oil groove from the meshing portion preserves support rigidity while maintaining effective lubrication.

A zinc-free transmission oil composition uses dithiophosphorylated carboxylic acid and phenate detergent to maintain lubrication efficiency.

Sealed differential gear housing directs pressurized lubricant through internal bleed paths to cool planetary gears.

Flywheel cover prevents radial discharge of cooling air, ensuring consistent supply to the centrifugal fan and improving transmission cooling efficiency.

An integrated bearing cap creates an oil pocket that acts as a heat sink, improving cooling efficiency without adding complex separate components.

Stationary receiving component mounts double sealing rings to seal coaxial drive shafts, eliminating centrifugal lip lift and simplifying venting.

Built-in radial fans on the adapter housing dissipate bearing heat, resolving the trade-off between compact volume and thermal management.

Immersion of an axial cooler in lubricating oil reduces casing diameter and manufacturing complexity while maintaining effective thermal management.