Proportioning Devices TRIZ Cases

An axial seal and fluid-tight piston keep a replaceable lubricator cartridge airtight, preventing vacuum formation and easing exchange.

Adjustable grease distribution lets each shovel pin joint receive the right amount, reducing leakage, overgreasing, and lubrication loss.

Calibration updates mass-per-stroke reference values so an electric lubricator can estimate dispensed grease accurately across lubricant and environment changes.

Circumferential channels and ports meter fluid from one aircraft shaft to multiple targets, improving lubrication and cooling distribution.

An adjustable stop limits piston stroke to vary or shut off lubricant volume, avoiding fixed-flow valve redesign for different needs.

Individual grease control at each pin linking member improves lubrication under load while cutting waste at low-friction points.

Circumferential channels and ports meter lubricant to multiple aircraft shaft locations, improving cooling and lubrication flexibility.

A combined adjustable piston and spool valve manages lubrication pressure across operating conditions while reducing bypass flow and hardware complexity.

Cyclic supply-line pressure and an adjustable piston stop let one metering unit deliver precise lubricant volumes or be temporarily deactivated.

A spool and dual adjustable pistons let one lubrication valve switch from PAV-like to PRV-like behavior across changing oil pressures.

A spool and dual adjustable pistons let one lubrication valve switch between pressure adjusting and regulating modes to stabilize cavity pressure.

Friction between a protruding insertion part and guide hole lets operators feel correct greasing pipe alignment inside a clutch housing.

Three-way valves redirect oil from a serviced pump to a collection pan, keeping compressor cylinder lubrication running without shutdown.

Direct outlet connection from dual metering chambers simplifies lubricant injection, cuts parts and space, and maintains reliable delivery.

A shuttling spool and dual-spring injector meters grease to each bearing accurately at high pressure while minimizing return flow.

A sliding line blind valve with magnetic sealing stops grease leakage and air entry during grease container replacement.

A bypass dummy piston keeps lubricant flowing when outlets are removed, preventing buildup, pressure imbalance, and loss of dosing precision.

Dual fluid circuits and air-driven pistons keep wetting fluid flowing to pressure relief valves while the reservoir is refilled without line shutdown.

A single control piston and directly connected metering chambers cut injector parts and space while maintaining reliable multi-outlet lubricant delivery.