Piston Pumps TRIZ Cases

See how a reversible motor with dual freewheels drives both compressor and vacuum pump without

A reversible motor and dual freewheels let one portable machine switch between refrigerant recovery and vacuum pumping without clutch shifting.

A dense, thermally conductive liquid layer around a heat trace improves sales tank heating even when sand settles at the bottom.

A spring-loaded yoke-magnet mounting lets a linear compressor absorb thermal expansion, limiting friction, energy loss, and damage.

A diverging rotor clearance and outlet drive fluid from small to large diameter, cutting hydraulic friction while preserving compact pump capacity.

Perpendicular magnetic fields and current drive liquid metal at high, stable pressure, reducing jet variation, leakage, and X-ray source downtime.

Multi-stage two-piston compression and integrated drying raise air suspension pressure output while saving installation space and cost.

A centrifugal sliding arm shifts the gyroscopic axis in real time, letting a linear hydrostatic pump self-adjust to load changes with lower energy loss.

A rotatable valve cam coordinated with the swashplate optimizes pre-compression and decompression to cut throttling losses in axial piston hydraulics.

Adjusting both drive and accumulator pump flow cuts power peaks in twin-cylinder concrete pumps while maintaining stable thick-matter delivery.

A separable shaft with two bearing points simplifies pipe diverter removal in thick-material pumps while preserving load capacity.

A cam-driven lift block and ball followers replace bulky gear reduction to deliver hydraulic force in a lighter, smaller tool.

Gear noise in oral irrigators is addressed with a cam-driven piston pump that aligns groove direction with piston travel.

An electric motor drives an auxiliary hydraulic pump to retrofit truck-mounted concrete pumps with fewer modifications and hydraulic lines.

Separate air conduits and one-way valves improve airflow while reducing piston friction and preserving airtight sealing.

A control unit synchronizes pressure-intensifier bodies and operating speed to stabilize pressure flow while reducing moving-part wear, noise, and vibration.

This case shows how axial pump-body movement and spring preload regulate dry-sump pressure while simplifying two-phase flow handling.

This case shows how a core ring, pin, and sleeve enable precise pump turning while protecting the grease tip and reducing downtime.

Applying an elastomer coating to the cam surface prevents adhesive wear and aquaplaning in diesel fuel injection pumps.

A unified gas compressor system integrates centripetal forces with incompressible fluid pressure to drive pistons for mechanical compression.

Intermediate valve position equalizes pressure before switching, reducing mechanical complexity and wear in sludge pumps.

A movable tube section with a switchable closure connects delivery cylinders to the outlet in thick material pumps.

A closed-circuit working medium pump drives an intensifier piston to generate ultra-high pressure fluid without directional control valves.

An integrated resilient valve and magnetic piston system reduces power consumption and ullage volume while improving gas bubble handling reliability.

Insulative terminal holder and resin molding isolate electrodes from conductive fuel.

A compressor assembly uses counter-rotating shafts with balanced mass moments of inertia to eliminate torsional vibration.

Elastic-body support member connects resonant spring and bearing to restrain lateral loads, reducing friction and energy loss.

A foot operated snivel suction device incorporates a pressure relief valve with an audible sound member to alert users during operation.

A piston pump hydraulic circuit divides pre-compression into two phases using auxiliary and main pumps to drive delivery pistons.

A submersible motor cable feed-through uses a detachable sealing collar with radial compression to maintain watertight integrity.

A miniature fan uses a magnetically sealing ring to reduce volume while maintaining air output.

A fuel metering pump uses a peripheral outlet opening to create a blind hole volume for piston deceleration.

A pneumatic pump spool thickening modulates air entry to accelerate piston reversal without mechanical springs.

A radial cam-driven compressor uses roller elements in guide channels to convert rotary motion into linear piston travel with reduced sliding friction.

Rotating battery engages sealed electrical terminals to power series centrifugal pumps, preventing fluid ingress during submerged operation.

An integrated base plate design merges bearing holding and brush holder positions radially, reducing manufacturing complexity while maintaining rotor stability.

Segmenting the cam mechanism from the disposable fluidic module eliminates localized heating and wear, ensuring stable high-pressure operation.

Routing transmission fluid through a hydraulic pump drives a pneumatic compressor, supplying compressed air without parasitic engine torque loss.

Controller manages compressor loading via unloader valve to maintain air pressure, reducing engine load and energy waste during continuous operation.

A pressure compensation volume maintains elevated fluid pressure to support the sealing surface within a fluid-driven motor cylinder.

Coupling a yoke to a magnet component bridges the interspace between stator and magnet, restoring magnetic circuit efficiency lost to air gaps.

Shaft-distributed roller piston pump balances axial inertial forces through opposite-direction reciprocating pistons, eliminating flow pulsation and tilting.

A dual-body pump varies chamber volume to move viscous fluids efficiently.

A permanent magnet linear actuator generates vacuum pressure through electromagnetic motion to draw fluids into an inlet.

Internal fasteners and a nested gauge housing protect components from vandalism while enabling modular repair of the valve head assembly.

A wearable garment transitions between flexible and rigid states using friction jamming within overlapping sheet layers.

A coolant supply unit merges distribution and flow merging chambers into a single casing to enhance liquid movement.

Replaces conventional arc profiles with logarithmic curves on the roller ends to distribute stress and reduce failure rates under high pressure.

An integrated pipe testing device merges pressure generation with compressed air flushing to eliminate separate equipment needs.

Electric ball screw drive synchronizes dual concrete pump pistons, replacing hydraulic systems to eliminate asynchrony and reduce maintenance complexity.

A back cover support portion constrains the rear main spring transverse movement, eliminating abrasion and noise from unnecessary contact.

Two independent pinion shafts balance torque distribution between bull gears, eliminating uneven load wear.