Rotary Piston Pumps TRIZ Cases

Varying radial groove distances mitigate mechanical stress and volumetric efficiency losses caused by gear meshing pressure pulsations.

Integrating a partition wall creates nested chambers that interfere with intake pulsation noise while increasing structural rigidity to reduce radiation noise.

Direct communication between the discharge passage and pressure chamber eliminates flow constrictions, reducing pulsation while maintaining fuel economy.

A rotary pump vane uses a truss structure to prevent lubricating oil accumulation.

Integrating a controller into the vacuum pump housing reduces installation effort and space requirements while enabling real-time monitoring.

A fluid-injected screw compressor element uses direct rotor-to-housing contact and hard coatings to minimize friction without mechanical bearings.

Integrated bearing frame aligns gear shafts to reduce friction, suppressing heat generation that cures ultraviolet-curable ink.

Integrating oil and coolant channels within the gearbox housing eliminates external pipes, reducing leak risks and maintenance complexity.

Hub recesses expand vapor bubbles during meshing, preventing cavitation erosion that degrades volumetric output at high speeds.

Segmented discharge ports control gas release timing to prevent excessive compression and reduce power consumption in oil-free screw compressors.

Rotating mold elements induce shear flow to realign reinforcing fibers, improving transverse stiffness and crack resistance.

Segmented suction ports and a turning passage redirect excessive oil away from the main inlet, eliminating flow inhibition that deteriorates suction properties.

Elastic metal rotor lobes create interference seals that eliminate fluid leakage across clearances, boosting drilling motor efficiency.

A compressor device uses a bypass pipe to divert oil flow, preventing condensation at low temperatures.

Integrating a variable-capacity member inside the housing eliminates external valves and pipes, reducing device complexity while enabling capacity variation.

Inclined shims convert axial pressure into radial compression, eliminating clamping variations that cause fluid pulsation.

A sliding element between the fulcrum and recess reduces friction in variable displacement rotary vane pumps.

A liquid ring compressor drives its casing to synchronize with the impeller velocity for reduced mechanical drag.

A scroll compressor design uses overlapping bearings to reduce radial load on the rotating shaft.

Segmented cover portions with local ventilation openings reduce sound emissions while ensuring reliable cooling of the electric vehicle vacuum pump assembly.

A scroll compressor cutout portion passes through the discharge port profile to create a preliminary flow passage.

Divided pressure control chambers and a relief circuit enable stepwise hydraulic pressure increases while minimizing characteristic variations.

Segmented second bearing point prevents cavity formation during injection molding of long, thin plastic rotors.

A scroll compressor tip seal employs a plate spring to maintain contact with the tooth bottom, reducing fluid leakage caused by changing tip clearances.

A hydraulic gear machine applies counterforces to gear wheels and bearing shafts to minimize sliding friction.

Reducing drive power consumption by up to 25% when conveying high gas content fluids through dynamic frequency adjustment.

Guide groove reduces residual refrigerant and pressure pulsation by directing flow toward discharge hole.

A crankpin recess creates a deformable circumferential wall that reduces contact pressure on the orbiting scroll bearing.

An external gear pump integrates two independently driven prime movers within the casing to synchronize fluid displacement.

Straight manifold ports and an eccentric commutator eliminate high-angle flow shifts, reducing energy loss and component wear in gerotor systems.

A liquid feed gas compressor uses separate cooling units to supply oil at distinct temperatures to bearings and working chambers.

Radially movable displacement elements form chambers in a rotary pump to deliver fluid bidirectionally, reducing leakage and wear at pressures above 300 bar.

Internal rotor passageways direct lubricant to specific components, reducing axial thrust on bearings and preventing fluid contamination.

Angled abutment inserts counteract screw spindle crossing to reduce inner leakage and torque requirements in vehicle fuel delivery assemblies.

Asymmetric hydraulic surfaces shift the control ring to low eccentricity, preventing rotor vane damage from startup overpressure.

Segmented impeller blades and an automated drain hole resolve self-priming drainage conflicts in food sector pumps.

Segmented housing with flat dividing planes reduces production costs and eases maintenance access for horizontally split screw pumps.

An integrated manifold splits gas flow through multiple spray nozzles to increase contact time and improve heat transfer efficiency.

A fluid pump uses a movable end plate to compress gear sets, eliminating the need for multiple component sizes and reducing manufacturing costs.

A fluid pump design aligns the return passage parallel to the suction path for smooth flow merging.

Wider tooth roots enable fluid friction mode, lowering drive power and leakage.

Segmented rolling bodies replace sliding bush friction to eliminate axial load oscillations and enable reliable high-pressure operation.

An integrated cooling circuit in a gear pump drive redirects fluid loss through housing channels to remove heat, eliminating bulky external systems.

An electropneumatic solenoid valve with an adjustable time delay prevents back-diffusion and venting in mass spectrometry receivers after power restoration.

Grooved slide valve surfaces direct lubricant to prevent seizing in high pressure compressor environments.

Independent oil circuits with a gas-liquid separator prevent bearing damage from dissolved gases.

Nested gears in this volumetric pump decouple shaft speeds, reducing power dissipation by 40% while enabling flexible installation positioning.

Concentric flushing chamber around pump shaft seal prevents material deposits by diverting leakage flow via pressure gradient.

Integrating the cooling pump with a shared driving set removes redundant motors, reducing energy consumption and operational costs.