Rotary Piston Pumps TRIZ Cases

Hydrostatic pressure fields compensate for tilting moments and axial thrust, reducing leakage in high-pressure helical gear pumps.

Rectangular suction passages with asymmetric dimensions increase capacity without compromising volumetric efficiency or causing cavitation.

Protective plates mitigate cavitation erosion on housing and cover surfaces, extending pump life without reducing volumetric output.

Recessed cavities in the stator casing absorb radial forces on the elastomer collar, preventing movement during eccentric screw pump operation.

Segmented exhaust chambers extend gas flow paths, reducing pulsation and improving noise insulation despite lower discharge port constraints.

Segmented actuating sections prevent centrifugal backflow and maintain radial inflow, resolving high-speed efficiency losses in rotary pumps.

A screw compressor control slide uses a defined throttle gap to manage medium flow between connected and separated positions.

Intermediate fresh air injection cools rotary screw vacuum pumps below 225°C, eliminating lubrication needs while maintaining compression efficiency.

A pump with a magnetic coupling uses a suction line to cool the rotor without axial force.

Integral mounting brackets on a nested motor pump enable selective outlet orientation, resolving maintenance accessibility limits in lobe pump assemblies.

An integrated compensating channel in the valve device enables rapid pressure equalization, preventing oil accumulation and reducing restart torque.

A scroll compressor sub-discharge port uses an involute-shaped opening to prevent refrigerant leakage between adjacent compression chambers.

Wider timing belt grooves permit mechanical backlash that dissipates excess energy via transverse waves, preventing rotor oscillation during high-speed starts.

A screw spindle pump delivers gas liquid mixtures by limiting pressure increase to twenty percent of the suction outlet difference.

An integrated pump design merges fluid storage into the housing via flow-through shafts, reducing system footprint and contamination risks.

Ceramic secured rings and coatings enhance abrasion resistance while eliminating fluid stagnation zones in eccentric screw pump seals.

Composite screws with metal cores enhance structural integrity while polymer bodies dampen vibration.

A hydraulic pump uses an integral electromagnetic drive to rotate a rotor with recessed chambers, while radial rollers seal fluid within the housing.

Liquid cooling channels in the rotor shaft remove compression heat, preventing overheating while maintaining high gas flow rates.

A pump control seal routes medium through a dedicated area to detect leaks before gearbox contamination occurs.

A scroll compressor assembly uses a mortise joint between the tail driving shaft and eccentric sleeve to confine movement.

Nesting the anti-rotation ring into axial clearance prevents incorrect positioning, reducing friction and wear.

Asymmetric guides and modular actuators prevent locking-load jamming while ensuring reliable rotor rotation.

Resin injection molding and sintered metal components eliminate complex machining to lower costs while maintaining sealing precision.

Merging resonance and expansion silencers reduces vacuum pump size while maintaining wide-frequency noise reduction.

Dual outlet conduct assembly with height-differentiated apertures maintains fluid extraction flow in rotary-vane vacuum pumps.

Selective fluid passageways in a vane oil pump disrupt pressure wave harmonics, reducing tonal noise and improving vehicle NVH performance.

Rearward working position and dynamic diameter limits increase teeth count while maintaining compact outer dimensions.

A twin-shaft pump uses a thermal break to isolate bearings from high pumping chamber temperatures.

Radial porting balances forces to prevent skewing and leakage in displacement pumps.

Movable pressure-boundary walls expand during freezing events, preventing structural damage from liquid expansion without altering fluid composition.

A screw spindle pump uses a rotating cover component to align fluid outlet connections with varying installation requirements.

Segmented ultra-fine filter enables uninterrupted vacuum pump operation by switching to clean surfaces during maintenance.

An exhaust bearing seat features an upwardly inclined discharge port that guides gas flow rotationally along the housing inner wall.

An elliptical stator profile reduces driving force while maintaining sealing tightness through localized interference adjustments.

A gear pump rotation shaft incorporates concave portions to generate dynamic pressure within the liquid medium.

Merging the rotor with the orbiting scroll reduces installation space while ball bearings constrain rotation without extra mechanisms.

Electronic control system replaces hydraulic feedback loop to eliminate oil pressure pulsations and improve response speed during cold engine start conditions.

Segmenting the fluid space with a filler piece ensures uniform chamber filling, boosting throughput and reducing flow resistance.

A gear pump uses a clearance fit on a freely rotatable shaft to mount driven gears.

A variable displacement pump uses an oscillating regulation ring to adjust fluid delivery volume dynamically.

A rotary blower rotor applies a corrosion-resistant electrolytic ceramic coating beneath an abradable layer to maintain structural integrity.

A parallel pump system combines a fixed unit with a variable unit to modulate fluid delivery.

Selective surface hardening on orbiting scroll wraps reduces wear while asymmetrical step portions optimize contact geometry.

Hook-shaped locking claws prevent axial movement of the thrust plate under excessive loads, reducing compressor failure.