Positive Displacement Pump Components TRIZ Cases

An elastic suction valve with a projection-held shaft improves seal position accuracy, cutting cost and pump size without extra machining.

A dual retention valve seat uses a temporary groove insert and locking taper to prevent pump-out and cut maintenance in high-pressure pumps.

Extrusion creates a near-net-shape axial piston blank with high surface quality, cutting machining complexity, cost, and production time.

An external tank, pump, and manifold deliver filtered oil to crosshead bores, improving lubrication reliability and serviceability in reciprocating pumps.

A propane prime mover and adaptor with centrifugal clutch replace battery-powered actuator drive to cut recharging downtime and manual effort.

An elliptical suction port between the piston head bodies increases flow area, improves valve response, and limits refrigerant leakage.

A variable annular throttle damps high-frequency inlet valve motion in a fuel pump, reducing bounce, overshoot, and seat impact damage.

Segmented frame plates and machined skid pads improve pump alignment, rigidity, and resistance to vibration and bending damage.

Geometric receiving troughs and extending-arm valve plates stabilize sealing while reducing swing path, friction, and fatigue in diaphragm pumps.

A spring-and-plunger tensioning mechanism keeps pump drive belts tight in compact fluid delivery layouts, preventing slippage and uneven flow.

Separate pinion shafts with a keyless coupler enable precise gear backlash adjustment, reducing wear, stress, and heating in fracturing pumps.

Separate fluid end sections remove intersecting bore stress points, reduce wear from pressure and abrasives, and allow section-by-section replacement.

A screw-bolt-locked torque gear and bearing arrangement prevents idle rotation, base wear, and friction for steadier piston compression.

A pressure-actuated valve lets oil lubricate at low chamber pressure and seals at high pressure to cut leaks, shear loss, and seizure risk.

Coordinated plunger stops and staggered valve timing cut pump changeover downtime and reduce spray pressure fluctuations.

A ring-encased carbide valve seat balances installation and operating stresses to reduce cracking, leakage, and premature wear in fluid ends.

By placing the pump inside the control block, this actuator cuts component count and installation space while preserving pump support and valve integration.

A spring-biased insert and interference-fit retainer let a common rail fuel pump outlet check valve hold pressure above 30,000 psi.

A tuned Co-Fe-Ni-Cr-Mo alloy cuts cobalt cost while preserving wear, corrosion, thermal shock, and hardness stability in valve seat inserts.

Segmented bearing inflow passages restrict refrigerant flow, sustain piston support, and avoid orifice clogging in linear compressors.

A communicating member and coupled pistons replace a spring-biased switching valve, cutting pressure booster complexity and energy use.

A conical support and tapered receiving member spread ultrahigh-pressure loads to prevent leakage, cavitation, and main body damage.

Offset housing and plate bores use removable retainers to align valve covers, maintain preload, reduce leakage, and ease pump service.

Distributed compact compressors with auxiliary tanks cut piping, power waste, and downtime in machine tool air supply.

A screw-bolt torque gear keeps the bearing seated and reduces base friction, improving air compression efficiency and service life.

A threaded one-piece cage and insert remove flow restriction, stop ball rattling, and avoid stress-related valve failures.

Offset linear actuators and one-way coolant passages smooth pump output, cut valve wear, and keep the motor cooled during operation.

A tapered seal and frusto-conical valve body spread cyclic loads on the valve seat, cutting contact stress and improving sealing durability.

A coupler-actuated valve guide lets pump valve bodies be removed through limited access while the seat stays in place, cutting service time.

An in-tank auxiliary pump offsets suction pressure loss from fine strainers and cold oil, keeping hydraulic pumps fed while improving particle filtration.

A coil spring and damping support cuts bolts and parts in a linear compressor while improving noise and vibration absorption.

A normally open solenoid inlet valve cuts impact noise and, with an integrated outlet connector, reduces trapped volume in high-pressure fuel pumps.

Dual sealing inserts split wear and sealing functions in reciprocating pump valves, extending fluid-end life under high pressure and particles.

A joint adjusting element links target and maximum hydraulic pressure settings to prevent pipe bursts in thick matter pumping.

Partial lubrication-fluid filtration removes solids before they reach rotating components, cutting wear, energy use, and maintenance.

A buckled sheet driven along figure-eight paths counterbalances elastic restoring forces to improve force, displacement, and efficiency.

A dual hole-pattern pump flange fits asymmetrical engine mounting positions while improving installation flexibility without adapter plates.

Captured leakage grease is stored and pushed back into the pumping chamber with check valves and a spring-biased piston to prevent leaks.

A rail hydraulic unit places the motor-pump on one side of the connection panel to save space, simplify fluid paths, and improve stability.

An annular cover opening and lid layout prevent finger entrapment while allowing quick tube replacement and smoother liquid feeding.

A tapered seat with a localized hard strike-face insert cuts erosion and stress concentration in fracturing pump fluid ends.

A single-fan cooling assembly uses a shroud, heat exchanger conduit, and feedback control to cool both motor and fluid in a compact pump.

High-frequency piezoelectric vibration drives one-way gas transfer in a compact pneumatic pump, cutting noise and bulk for portable pressure control.

By moving the pressure gauge into the handgrip, this air pump enables direct standing readout and a more compact scale layout.

A coated tubular liner and lubrication channel help injection valves handle abrasive fuels by reducing piston and cylinder wear.

A movable crank shaft force point improves beam pumping geometry to cut net torque, energy use, wear, and speed reducer size.

Adjustable flow restrictions feed downhole bearings from a topside pump to cut windage losses, seal wear, and reservoir complexity.

A foot valve and oscillating piston inside a pipe keep viscous media flowing even when the vessel level drops below the scoop edge.

A swaged cylinder with radial clearance simplifies pump-body fixing and limits inward displacement that can cause plunger sticking at high pressure.