Positive Displacement Pump Components TRIZ Cases

A vacuum deflation structure uses pressure differential to drive a mechanical transmission assembly.

Inclined surfaces in piston suction channels reduce flow resistance, increasing refrigerant inhalation and compressor efficiency.

A high-pressure pump uses a dual-layer housing with an annular water channel to cool the motor stator coil through heat-conductive silica gel.

Internal cooling channels in a compressor piston circulate fluid to reduce discharge temperature, shifting compression toward an isothermal process.

Fusible plugs in suction channels open during overheating to admit ambient air, preventing mechanical damage from excessive heat.

A membrane piston pump uses a dual valve arrangement to manage hydraulic fluid pressure across operating states.

Elastic fitting design compensates manufacturing inaccuracies in compressor housing assemblies, preventing leaks and material distortion during assembly.

Multiple rollers compress the tube to increase pulse frequency, resolving widely spaced pulses into steady flow without separate pumps.

A hose receptacle lever mechanism tensions the pump hose around a fixed head, simplifying replacement and reducing operator effort.

An automatic moisture condensate separator uses auxiliary pressure to open a drain valve, preventing clogging and failure in compressed air lines.

A scroll compressor relocates back pressure seal members to the intermediate housing and uses an orifice pin for oil supply.

A locking ring with an embedded magnet detects its locked position via a reed switch sensor to secure the pump head adapter plate.

Spring-activated check valves manage bidirectional fluid transport while an eccentric shaft reverses pumping direction without external valve rearrangement.

A compressor sensor part detects piston speed and stroke using a non-magnetic marker for accurate digital signal conversion.

A double-acting reciprocating pump assembly routes fluid through a hollow piston rod to dispense equal volumes during both strokes.

Refrigerant gas bearings eliminate oil circulation friction, enabling compact linear compressors with high drive frequency reliability.

A check valve uses a circumferential notch to isolate the circular opening from assembly distortion while an o-ring seals between flanges.

Non-uniform air gaps in the stator core blocks reduce structural complexity and manufacturing costs while maintaining efficient magnetic flux interaction.

A variable capacity swash plate compressor hinge mechanism uses a cylindrical guide roller moving along an inclined rotor groove to convert rotational motion.

Integrates independent water-cooling channels into the motor housing to dissipate heat from brushless DC motors in handheld cleaning tools.

Segmented assembly eliminates double press-fit deformation while guide grooves prevent self-closure from fuel backflow.

An asymmetric membrane configuration prevents simultaneous bending in an air-bag inflating device, ensuring reliable chamber control during pressing operations.

A box end plunger design minimizes uncompressible volumes to achieve high compression ratios in downhole pumps.

Segmented coils generate alternating flux to double power utilization, eliminating mechanical valves and boosting micropump reliability.

A vacuum pump foreline uses a discharge line to capture solid material in an external trap.

Integrating piston guidance into the rear tank eliminates a separate guide cylinder, reducing manufacturing costs and pump weight.

A linear compressor uses a magnetic levitation bearing to support the mover without mechanical contact.

A telescopic cable clip device uses a spring-loaded inner column to clamp power cables within a cylindrical housing.

A compressed air line vents upstream of the drying device to reduce back pressure during compressor restart.

Permeable elastomer valve closure members allow gas penetration for complete sterilization while maintaining uniform flow.

Optimized nitrocarburizing creates a thin connecting layer that withstands Hertzian stress while maintaining high service life.

Integral one-piece design prevents sand dropout and cavitation by removing leak-prone welds, ensuring uniform slurry flow in hydraulic fracturing pumps.

An electric fuel pump routes pressurized fuel through an axial clearance between the stator and housing.

Segmented ventilator sections propel distinct airstreams to cool the electric motor and heat exchanger independently, reducing noise from turbulent mixing.

An oblique peripheral wall contact section expands the interface area between a piston compressor valve unit and its cylinder head.

Preliminary pump head fixation compensates for manufacturing tolerances to prevent uneven seal wear.

A spa tub sprayer integrates a thermal meter for contactless water temperature measurement.

A compact hemodialysis cassette uses a planar substrate to minimize thickness and facilitate closer placement of multiple units.

Ejector pump diverts compressor bypass flow to drive cooling through the motor.

A diaphragm compressor design routes fluid through the actuator housing to cool the moving component directly.

A shoe with a spherical-surface-portion side flange accommodates lubricating oil in the compressor assembly.

A reciprocating piston pump integrates fuel pressurization and injection into a single unit driven by a solenoid actuator assembly.

A detachable inverter assembly uses screw fixation on a base to replace gel encapsulation for service access.

A bypass unloader valve rapidly cycles between discharge and suction plena to modulate refrigerant flow in reciprocating compressors.

Segmented piston grooves reduce dead space while preventing turbulence and temperature rise in hermetic compressors.

An asymmetric piezoelectric blower design increases discharge flow quantity while strengthening electrode connections via surface contact.

A second control valve adjusts pressure release passage openings using a spool and partition member assembly.

Segmented discharge valve portions reduce inertia to improve response speed, addressing compression loss caused by high stiffness delays.

A pressure relief valve opens a bypass flow path from the pressure line to the suction line.