Positive Displacement Pump Components TRIZ Cases

A lost-motion linkage lets the actuator overtravel the pistons to improve priming, prevent air entry, and support adjustable foam dosage.

An inverted piston and one-way valve layout cuts residual fluid while preserving compact refill space and effective air-liquid foam mixing.

Edge-mounted damping elements on the evaporator shell cut compressor vibration transfer, resonance, and noise without bulkier shell stiffening.

Cycling dedicated compressor valves with a minimum delay cuts part-load refrigerant recirculation losses and lowers operating cost.

Integrated cartridge heaters warm liquid inside the pump cylinder, cutting energy waste, easing maintenance, and improving temperature uniformity.

An air bleed valve in the uptake shroud vents trapped air, keeping inverted pumps dispensing consistently and reducing leftover liquid waste.

A compression-chamber port creates a direct thermal path through the housing, improving cryocooler heat rejection and limiting temperature rise.

Rear-wall air intake and front-wall exhaust use fiberglass ducting to manage generator heat, reduce noise, and direct gases away safely.

Temperature-based pump control stops or slows circulation when compressor heat is too low, preserving hot water temperature and recovery efficiency.

Ionized airflow from an electrically isolated EHD thruster boosts heat sink cooling without fans, reducing noise, maintenance, and energy use.

An integrated pump mount damps washer vibration while reducing parts, installation space, and fastening cost.

Resilient tensioned connectors suspend an air pump to cut housing noise and stop contact that could damage the PCB.

Using VFD-driven stator current during off cycles, this case warms compressor lubricant faster and avoids continuous crankcase heater energy waste.

Sequential diaphragm actuation separates liquid and air pumping to stabilize foam quality and control the air-to-liquid ratio.

An unbalanced motor directly drives the diaphragm to cut pump size, weight, and cost while a motion constraint prevents over-deformation.

A single pressure vessel combines precooling, evaporation, separation, and drainage to deliver drier compressed air and reduce corrosion risk.

A buffered plate-spring support cuts vibration transfer to the shell, reducing noise, radial motion, and casing collision risk.

A coaxial inlet-outlet valve assembly simplifies pump layout, enabling reliable one-way flow and efficient fluid extraction in confined spaces.

Rear intake and front exhaust openings create one-way cooling airflow in a fiberglass standby generator enclosure, reducing heat recirculation and noise.

Separating liquid and air pump cycles lets viscous fluids be fully expelled and cleanly severed even during partial piston strokes.

A coaxial piston pump and cartridge layout simplifies under-counter reservoir alignment and coupling while dispensing liquid and air together.

Removing refrigerant oil before the swirl flow generator promotes decompression boiling in the nozzle and improves ejector cycle COP.

A casing separator removes oil from supplemental refrigerant, preventing nozzle clogging and friction in gas bearing linear compressors.

Working gas convection and regenerator ports create a direct heat path from the compression chamber to the housing, cutting thermal resistance.

Facing heat exchangers with blower-fed airflow expand cooling capacity, cut noise, and simplify compressor cooler maintenance.

Sub-cooled working fluid from the pump outlet cools the OTEC motor and returns heat upstream of the evaporator to improve heat use and reduce cooling complexity.

Opposed offset pistons raise refrigerant transfer per motor rotation while avoiding crankcase lubricant washout and compressor wear.

Off-state stator current from the variable frequency drive keeps compressor lubricant warm, preventing cold starts while avoiding excess heater energy.

Intermittent pump venting clears gas bubbles before discharge, preventing filtered rinse fluid from returning to the sump.

An elastic pump support absorbs axial, lateral, and rotational vibration, limiting transfer to the beverage machine housing.

Thin resistive tracks on the pump cylinder heat only the dosed liquid volume, cutting energy waste and stabilizing dispensing temperature.

Polyol ester compressor oil prevents phase separation with low-GWP refrigerants while maintaining sealing, low friction, and stability.

A pressure-driven lubricant suction conduit draws excess oil from the collecting chamber into the suction gas duct to balance compressor lubrication.

Bias-open intake and exhaust valves slam shut at critical flow speeds, enabling fuller gas expansion and more work from compact converters.

Thin conductive tracks on the pump cylinder heat each metered liquid dose quickly with lower thermal inertia and less wasted energy.

A built-in PTC heater, vortex flow path, and timed control warm washer fluid for faster windshield frost removal with low power use.

An integrated frangible stop flange keeps the piston from being pulled out, reducing handling damage, user error, and extra cap parts.

Passive phase cancellation in a dual-chamber suction structure cuts compressor noise without sensors, electronics, or added maintenance.

A pressure-sensor switch and movable box let one air pump change between inflation and deflation, then stop automatically to save user time.

Partition plates sustain swirl and centrifugal force in a compact refrigeration oil separator, improving oil removal with lower pressure loss.

An elastic pump support absorbs vibration in beverage machines, isolating the housing while preserving pump stability and suction efficiency.

A dry purge stream in an annular vent conduit displaces moist air to stop cryogenic ice buildup, avoiding heating collars and flow restriction.

A lost-motion linkage keeps foam pumps primed during short strokes while enabling adjustable dosage from the same refill unit.

A venturi-based drill dust extractor improves debris clearance while a detachable collar adapts securely to different vacuum nozzle sizes.

Compressed fiberglass ducts and removable panels improve standby generator cooling, noise control, and maintenance access.

Natural load-based modulation and voltage sensing keep cooling capacity stable while avoiding power shocks and complex voltage control.

A hinged cover and removable enclosure panel simplify generator service while fiberglass walls reduce noise, heat, and exhaust impact.