Rotary Piston Pumps TRIZ Cases

Symmetrical gaskets utilize elastic restoring force for secure retention, eliminating leakage risks and avoiding dye-induced strength reduction.

A variable displacement pump uses a second spool valve to variably control the metering orifice opening area for precise flow regulation.

A variable oil pump adjustment ring uses a flat-bottomed groove to create line contact with the guide pin, ensuring smooth rotational displacement.

Segmented cover plates with integrated spigots eliminate tool requirements for disassembly while rings seal rotor gaps.

An integrated filter plate merges with the pump housing to mount a pressure-limiting valve, reducing component count and assembly complexity.

Guide pins constrain the adjustment ring to maintain precise rotor engagement, resolving discharge fluctuation issues in eccentric oil pumps.

Opposite control chambers and a pivot bearing seal reduce pressure leakage while maintaining constant lubricant pressure across varying engine speeds.

Circumferential cams segment the impeller into unit chambers that decrease volume to expel fluid, resolving flow rate versus efficiency trade-offs.

Integrating resin housing surrounds stator and pump housing to align motor and pump axes.

Active liquid cooling channels in segmented housing dissipate heat from direct drive motor and screw rotors, reducing mechanical losses and thermal expansion.

Inner rotor fluid passages connect nonadjacent pockets to disrupt pressure wave harmonics.

Pivoting vane sections reduce wear and energy loss while an adjustable cylinder mechanism enables variable compression ratios.

Segmented bush assembly grooves guide lubricating oil radially through a weight section, reducing flow resistance at high rotational speeds.

A pressure relief passage creates choked flow to manage gas pockets in vacuum roots blowers.

Dual stator channels in a blade rotor pump reduce turbulence and cavitation risks by directing fluid flow, decreasing noise levels by 4 percent.

Segmented cover elements with labyrinth channels reduce dead space and noise while maintaining compact pump size.

Adding conductive additives to silicon carbide allows electroerosion machining, replacing labor-intensive grinding for precise contour matching.

Main bearings absorb process forces to maintain precise impeller positioning, reducing leakage losses caused by shaft bending.

An asymmetric crescent slide valve reduces pressure loss without enlarging the compressor casing size.

A compressor oil line structure guides lubricating oil through spindle holes and flange grooves to rolling bearings.

A bi-directional pump uses a movable flow controller to route fluid through distinct passages for forward and reverse operation.

Segmented lubricating pinions form channels in a radial parting plane, reducing manufacturing complexity while preventing lubricant accumulation on gear wheels.

Pressure relief channels connect high and low pressure zones in a rotary positive displacement pump to balance internal forces.

Asymmetric vane spacing in a variable displacement oil pump disrupts pressure ripple harmonics, reducing whine noise by over 15 dB without added complexity.

A mud motor inverse power section uses high molecular weight elastomers with graphene additives to form a uniform rotor seal layer.

A female rotor blowhole contour uses multiple connected arcs to minimize the enclosed area and shorten the meshing seal line.

A vacuum pump element connects compression chambers via a groove to reduce pressure differences and prevent cavitation damage.

Series-connected lubrication passages feed suction-side bearings in a screw compressor to reduce internal liquid volume.

Intermittent valve excitation reduces electric power consumption while maintaining precise discharge amount control.

Radially expanding an elastic ring into a bearing seat groove limits axial movement of the non-orbiting scroll without consuming radial assembly space.

Asymmetric flange design positions end surface between virtual planes to align stator gravity center, suppressing vibration without complex housing structures.

Integrating drive shaft inlet and outlet channels removes control valves, reducing internal leaks and boosting volumetric efficiency.

Segmented back pressure grooves resolve insufficient oil supply by using dimensionality changes to maintain torque reliability.

Auxiliary volumetric pump uses pressure sensors to adjust motor speed via a control unit.

Segmenting radial centering from axial positioning via dedicated adjustment devices resolves manufacturing tolerance errors in vane-type gas pumps.

Hydrostatic balancing of pressure zones in a rotary fluid device reduces torque variation while improving efficiency.

A heat insulating member separates the bimetallic valve from the dividing plate, blocking cold low pressure heat transfer for precise overheating protection.

Integrating the drive wheel and pump rotor reduces component count, lowering manufacturing costs while maintaining precise dosing accuracy.

A scroll compressor control valve adjusts fluid flow through variable opening characteristics to regulate back pressure in the compression chamber.

Filling the motor chamber with lubricant removes radial shaft seals to eliminate wear and virtual leaks in rotary vane pumps.

Axial recesses in the thrust bearing guide fluid flow, reducing pressure loss while maintaining lubricant supply.

Floating bushings use hydrostatic pressure for viscosity-independent thrust compensation, simplifying assembly and eliminating complex fastening mechanisms.

Internal channels in pump vanes detect length loss via pressure shifts, preventing unplanned aircraft pump failure.

Non-uniform scroll clearance design prevents tip contact under thermal expansion while minimizing leakage gaps to maintain efficiency.

Variable axial sealing gaps in the stay deliver reliable bearing lubrication while preventing pressure short-circuiting across rotational directions.

Liquid-cooled air prevents condensation and vibration damage in the frequency converter housing.

Composite framework of spaced plates filled with polymer material prevents rubber delamination while maintaining dimensional accuracy.

A slide valve incorporates a gas replenishing chamber to buffer air flow and reduce operational noise in screw compressors.

Laminated metal stator with support rings distributes rotor inertia to increase durability, resolving thermal expansion issues in downhole drilling motors.