Positive Displacement Pump Components TRIZ Cases

A hydraulic sleeve jacket with a thin wall allows radial deformation to maintain constant sealing line contact during piston movement.

An intermediate housing unites a power take-off and hydraulic pump to reduce overall length, weight, and part count.

Profiled piston front face enters the outlet channel to compress fluid, eliminating dead volume that reduces pump efficiency.

Displaceable zeroing member defines piston reference position independent of biasing member fatigue to maintain accuracy.

Oil separator plate in suction muffler removes oil from refrigerant to prevent heat exchanger fouling.

Segmented spool valves manage motive fluid flow to resolve the trade-off between efficiency and structural complexity.

A plastic ring seal and separate guide element resolve thermal expansion contradictions in high-pressure fuel pumps.

Ring-shaped isolator reduces bond stress on actuator while maintaining acoustic resonance and electrical connectivity in two-cavity disc pump.

Axial grooves in casing protrusions concentrate shrink fit pressure to boost stator holding force while reducing vibration transmission.

A wheel hub compressor assembly supplies pressurized air directly to the tire cavity.

Enlarged cylinder section allows piston movement for external cleaning without disassembly.

A unitary pump housing casting integrates drive cavities and cylinders to produce higher pressure outputs.

An integral band heater design eliminates air gaps and hot spots by conforming to varying object shapes, reducing material costs.

A stacked pump case design directs hydraulic fluid pressure toward the first case via a dedicated valve chamber surface.

Common plastic overmolding for the motor-pump unit reduces assembly tools by merging electrical components into one plug connection.

A hydraulic circuit uses an adjusting valve to control cooling oil volume flow for transmission clutch cooling.

An air pump uses an external pressure relief channel extending to the sidewall for adjustable airflow discharge.

Merges threaded nut and plug assembly to eliminate misalignment during installation, preventing damage from high pressure and contaminants.

Multi-stage vacuum pump uses continuous ignition to combust fuel within pumped fluid.

A lubricating pump uses a bypass piston to oscillate between closed and open positions for fluid conveyance.

A vacuum pump startup sequence increases rotational speed to a stable level before introducing inert gas.

A piezoelectric blower uses a vibrating plate and housing to create a resonant chamber that directs gas flow.

A hydraulic machine arrangement uses a dedicated leakage port to monitor internal fluid flow for early wear detection.

A piston compressor introduces liquid into the compression chamber to eliminate dead space and cool the fluid during the stroke.

An inclined nozzle connects the silencer to the valve plate inlet, directing refrigerant flow with minimal turbulence.

Rotary joint protrusions and holes join plastic air cylinder and disc, eliminating fasteners and reducing production costs.

Wireless radar sensors measure bearing temperatures on reciprocating pump crossheads, detecting overheating before damage occurs.

A metering pump unit controller adjusts positive-displacement drive stroke rates to expel gas bubbles from the metering chamber.

Segmented valve and flexible isolator reduce dampening to enable high-frequency operation.

An angled piston crown compensates for mechanical tilt during the compression cycle to minimize clearance volume between the moving component and cylinder head.

A metallic spring bellows pump uses axial deformation to deliver precise urea dosing in vehicle exhaust systems.

A high-pressure fuel pump uses a dedicated bypass channel to circulate fluid around the sealing ring for continuous cooling.

Composite sealing mechanisms in the fluid routing plug mitigate fatigue cracks and erosion from abrasive hydraulic fracturing fluids.

A hydraulic unit routes fluid through a second duct to the pump pressure side, reducing operating noise while maintaining rapid pressure buildup dynamics.

Elastic member between diaphragms restricts deformation during resonance in high-pressure fuel pumps.

Composite silica-based float frame with central aperture prevents cracking under thermal stress while maintaining sealing engagement with pump inlet.

Segmented chambers and variable rigidity valves increase flow rate while maintaining compact dimensions, resolving complexity trade-offs.

A variable reed mechanism adjusts orifice openings based on pressure differences to reduce refrigerant gas loss and improve compressor efficiency.

A spherical seal ring maintains constant clearance with cylinder walls in axial piston machines.

An actuating rod moves a holder structure to compress the flexible tube only during operation, preventing permanent deformation and extending product life.

A grounding bus in the frequency inverter casing connects to the compressor housing via a single fixing element.

Segmented suction muffler uses a rigid body and flexible auxiliary hood to resolve thermal deformation contradictions while improving gas flow efficiency.

An X-shaped support member combined with peripheral tie bars prevents frame deformation during installation, maintaining bearing alignment.

A fixing ring and blocking ring mechanism secure the suction nozzle to the hydraulic machine access port using multi-start threading.

A rotatable adjuster aligns internal air passages to open or seal inflation inlets via high-pressure actuation.

Axial pressure inversion reduces cracking pressure and prevents backpressure accumulation.

A conical blade cylinder maintains swirling air speed to prevent foreign matter scattering and improve purification efficiency.

Extracting the cooling portion outside the housing accesses lower ambient temperatures to improve efficiency without increasing internal structural complexity.

Curved plunger interfaces distribute contact pressure to reduce side loading forces and improve fatigue capability.