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.

A pivoting handle, sealing ring, and biasing limiter let the pump head clamp and release valves one-handed while maintaining a tight seal.

An inward lip retainer lifts and supports an elastomeric seal to prevent sticking, deformation, and dislodgment under high pressure.

A split bearing with through and non-through shaft holes adds an oil reservoir to ease mold alignment and reduce shaft-hole wear.

A single-casing compressor merges actuation and compression cylinders to cut parts, simplify assembly, and support fluid transfer and depressurization.

An air reservoir cushions valve lamina impact in piston compressors, cutting acoustic emissions while preserving mass flow efficiency.

An elastomer isolator, rigid tube, and PVC-coated coil spring work together to limit vehicle vibration transmission and reduce NVH.

A curved-edge push nut locks a flexible check valve onto a convex support, cutting assembly time while reducing wear at the contact area.

Different thread forms at each stud end improve preload consistency and reduce fastener failure in high-power pump connections.

Replaceable sleeve assemblies and face-mounted retainers protect fluid-end sealing surfaces from erosion and corrosion while cutting repair downtime.

A dual-opening fluid end lets upper and lower valve seats be removed through alternate access, preventing thread damage and cutting pump downtime.

A battery-free air pump uses an external power port to avoid travel restrictions and high-temperature hazards tied to built-in rechargeable batteries.

A spring-and-cam pump delivers targeted self-priming lubrication inside gear housings, cutting leakage and avoiding electrical connections.

Multiple electric motors, a detachable transmission, and liquid cooling cut frac pump maintenance while sustaining high-pressure output.

A separate base and valve seat with a nested bolt head enables seat-only replacement while preserving stable valve seating.

Cooling fluid circulated through a blind-bore heat exchanger lowers plunger temperature in high-pressure pumps and extends packing life.

Integrated suction and discharge valve assemblies enable plug-and-play fluid pump servicing with less disassembly, simpler tools, and reduced downtime.

By keeping fixed-gap pressure at or above sliding-gap pressure, this fuel pump stabilizes sealing and prevents plunger-cylinder sticking.

Pressure-triggered valve switching returns hydraulic oil automatically in a piston pump, avoiding manual relief and incomplete oil return.

An internally threaded retainer with built-in anti-rotation prevents wear sleeve backout, cutting leakage and maintenance effort in fluid ends.

Flushing and lubrication in a pressure exchanger clear particles, reduce fouling and wear, and recover pressure energy with less downtime.

Audible and visual valve indicators show when optimum inflation pressure is reached while stabilizing parts prevent misalignment and faulty venting.

An electric pump adapter replaces gravity-fed valves to prevent water waste and enable leak-proof single-handed dispensing.

A threaded socket, thrust ring, and thrust plate secure PTFE pump membranes against loosening while allowing easy replacement.

A woven aramid-reinforced elastomer seal helps high-pressure reciprocating pump valves resist wear, cut maintenance, and extend service life.

A pressure-activated flow limiter damps hydraulic cut-off shocks, reducing pump wear and premature failures in mining shovel systems.

Alternating directional valve positions route drive cylinders to a flushing circuit, cutting pressure drop and overflow in thick matter pump hydraulics.

A removable guide lets a reciprocating compressor valve gain more flow area while limiting bending stress and simplifying service.

Multiple smaller valves split high-pressure fracturing flow to cut valve stress, limit wear, and extend service life.

Selective coating clearance regions on valve plates reduce flap wear, fatigue, and adhesion while easing manufacture of small-hole valves.

A cover groove redirects compressor exhaust while a simple O-ring seals gaps, preventing stray gas ejection and easing assembly.

A strike ring and support sleeve in tungsten carbide improve valve seat sealing in reciprocating pumps by resisting erosion, wear, and leakage.

By combining actuation and compression cylinders in one casing, this compressor cuts parts and cost while keeping fluid transfer and depressurization compact.

A centrally supported duplex pump drive head removes opposing end supports to cut interference, weight, cost, and repair complexity.

An integrated outlet valve bore and seat constrain lateral motion, cutting rattling noise, turbulence, and wear in fuel pumps.

A removable cartridge combines suction and discharge valves into one serviceable unit, reducing pump maintenance time and downtime.

Thermal decoupling rods, vacuum jackets, and vertical pump layout reduce liquid hydrogen vaporization while stabilizing seal wear and delivery.

A supplemental pump kidney loop adds fine filtration only when needed, cutting parasitic losses while maintaining lubrication and reducing wear.

A helical fluid path and thermal insulation cool the cryogenic pump body, limiting gradients, leaks, embrittlement, and combustion risk.

An eccentric guide shaft through the nut combines rotation restraint and axial guidance, shortening the pump and reducing wear.

A single-force press-fit joins guide legs and a separate sealing element to improve valve durability against corrosive fluids and particulates.

Integrated splines and support lands in the port-block coupler cut driveshaft bending stress and raise through-drive torque for larger auxiliary pumps.

A rail-mounted trolley and articulation arm speed wellhead hose connection and disconnection, cutting rig-up time and manual handling.

Separate housing portions let the lubricant pump element use load-matched materials, simplify assembly, and adapt conveying volume at lower cost.

An elastic inner-outer ring holder stabilizes vehicle pumps, prevents slippage, and damps noise and vibration with simpler assembly.

A self-aligning drive link cavity and clamp-style retention secure the pump rod faster while reducing side loading and wear.

A modular fluid routing plug lets high-pressure pump fluid end sections be replaced individually, cutting downtime from pressure and proppant wear.

Individually switched piston valves speed hydraulic actuator control while improving energy transfer between circuits and storage.

Valve-switched flushing and lubrication help a pressure exchanger clear fouling, handle particles, and recover pressure energy with less wear.

A valve-coupled removable reservoir replaces hose refilling, enabling fast lubricant resupply with minimal downtime and secure pump attachment.

A rotation-preventing washer constraint stabilizes a reciprocating compressor thrust bearing, cutting axial friction loss under high-speed, low-viscosity oil.

Integrated heating elements resolve non-uniform temperature distribution and reduce system complexity in steelworks lubricant pumps.

Helical grooves in the housing redirect solid-laden fluid away from the plunger interface, preventing accumulation that causes grooving and damage.

Ports divert leaking paint along the piston rod to protect drive mechanisms and provide visual seal degradation indicators.

A load ring between the retainer and sleeve distributes axial clamping force evenly, preventing misalignment that causes excessive wear and fluid leakage.

Radial residual pressure release ports in the valve plate reduce sudden pressure changes during discharge-to-suction shifts, preventing cavitation.

A hard seal positive displacement pump uses a reciprocating piston to deliver fluid without elastomeric materials.

Independent piston control via electro-hydrostatic transmission resolves the trade-off between adaptability and system complexity in high-pressure homogenisers.

An integrated controller housing combines pilot and hydraulic unloader valves to manage compressor suction valve operation.

Diaphragm compression eliminates piston friction while single air gap maintains magnetic field uniformity.

An impulse pump stores rotational kinetic energy in a flywheel and releases it via a planetary gear transmission to drive a plunger.

A linear compressor piston uses a flexible wire and column coupling to transfer mover motion while minimizing mechanical friction.

A pumping device integrates a cooling unit fluidically connected to the pump for liquid cooling of the electric drive motor.

Multiple flexible discharge hoses with specific viscosity suppress clogging and pulsation while maintaining structural strength during high-speed operation.

A compressor partition plate integrates a gas passage hole with an oil drain hole positioned below the gas opening.

A valve with a stepped seat face reduces flow losses through gradual deflection, resolving sealing reliability trade-offs.

An eccentric transmission assembly drives a reciprocating connecting member and piston, eliminating spherical connection noise and friction damage.

Segmented chambers resolve the trade-off between compact size and rapid inflation speed.