Rotary Piston Pumps TRIZ Cases

Segmented bearing surfaces stabilize rotation shafts in vane rotary compressors through differentiated back pressure control.

An annular metallic bellows aligns scroll blades during assembly, preserving tip-seal integrity while maintaining angular synchronization.

An unlockable locking system rigidly secures the pump head during transport while allowing floating isolation for quiet operation.

Hydrodynamic pressure from a fluid guide maintains the rotor-stator gap, preventing contact wear while simplifying manufacturing.

Rotating a single pump version with coaxial inlet and outlet openings eliminates the need for multiple specialized versions.

An aperture in an orbital pump safety device limits interleaved part movement beyond the orbital path, preventing damage from component failure.

Composite rotor design with conductive metal core and plastic sleeve resolves thermal expansion and chemical resistance trade-offs.

Connecting member presses drive shaft using high-pressure fluid to cancel thrust force, reducing wear and leakage without requiring space for a piston.

Segmented pressure chambers control delivery pressure to prevent horizontal sealing movement and cavitation erosion damage.

An integrated rotor body merges adjacent gerotor stages to eliminate separate assembly steps and prevent internal leakages in pump apparatuses.

Electronic converter integrates compressor control and diagnostics to eliminate separate heavy controllers, reducing installation space and weight.

Plastic control ring housing bodies paired with metal slide support pads resolve thermal expansion mismatches between aluminum lids and sintered steel rings.

Cavities within the silencing structure absorb acoustic energy from rotor-induced pulsations, protecting external pipeline joints from vibration damage.

An eccentric piston driven by an orbiting satellite reduces leakage and weight by extracting high-pressure containment from the compressor housing.

A screw pump circulates aqueous coolant through positive displacement to manage drive unit temperature.

A movable plug adjusts the discharge port volume in a screw compressor to optimize efficiency across varying climate conditions.

A positive displacement pump uses a flexible impeller and curved chamber wall to displace viscous fluids.

Rotating the casing and toothed wheel relative to the main shaft adjusts flow rate without changing shaft speed.

Applying liner material over a contoured mandrel eliminates stator holes that cause stress zones, extending service life.

Embedding the motor within the male rotor cavity eliminates overhang arrangements, reducing axial length while enhancing operational speed.

A cantilevered rotor vacuum pump uses a single radial bearing and conical support structure to stabilize the rotating assembly.

A two-stage electric pump design integrates a motor unit with coaxial high-pressure and low-pressure pump units to reduce power consumption.

Asymmetric rotor and stator lobes optimize load distribution and sealing efficiency in downhole drilling motors.

Splitting the pump support allows an elastomer sheet to isolate the body from the manifold, reducing bulk and cost while damping vibrations.

A pump device uses a radially extending flange and fitted exposure portion to isolate the motor from the transmission mounting surface.

Radial inlet ports and gear dimples reduce pump wear by redirecting pressurized oil to the intake side, lowering energy consumption.

Optimized internal gear pump reduces energy consumption by 30% while maintaining flow for burners.

A rotor unit incorporates a flex shaft nested within the drive shaft to enable radial movement for eccentric pumping.

A scroll compressor bypass mechanism uses a fixed port and revolving groove to control fluid communication between compression and suction chambers.

Dedicated lubricating oil paths deliver fluid to rolling bearings and friction pairs, resolving heat dissipation failures in rotary vane compressors.

A controller delays the inlet valve opening until injection pressure reaches a minimum threshold, ensuring stable gas intake during startup.

A vacuum pump uses a spring-loaded valve to switch between oil and air passages for lubrication readiness.

Segmented overpressure openings with weight-loaded valves relieve suction chamber pressure, reducing over-compression energy losses.

Displacing the male lobe profile line by a predetermined angle extends suction opening time to increase flow rate while preventing compressed gas backflow.

A cartridge vane pump integrates a flat spring to link the side plate and cover member for secure component retention.

Dual-section gear pump shares intake flow via divider to enable independent pressurization, reducing volume and manufacturing costs.

A screw pump liner bends and pivots in unison with intermeshing rotors under axial hydraulic pressure.

Wider groove-side oil reservoirs expand the bush gap under pressure, preventing wear and seizure from narrowed clearances.

Radial spring elements distribute axial forces evenly across the pump cover, preventing deformation while maintaining fluid tightness.

Keyed shaft connections synchronize drive and driven gears, eliminating mismatched speeds that cause wear while enabling universal tooling for manufacturing.

A rotary positive displacement expander uses a shifting head mechanism to rotate a shaft via compressible fluid expansion.

A modular liquid ring pump uses a pressure-sensitive mechanical valve to route first-stage discharge directly to the outlet.

PEEK rotor propellers adapt profiles to minimize clearances, reducing gas leakage and improving mechanical resistance in screw compressors.

Segmented guard design balances safety protection with operational visibility, eliminating the need to remove guards for leak detection.

A suction compression assembly integrates a manifold and injection pipes to distribute cooling gas within the rotor chamber.

An externally mounted electric fluid pump uses a gerotor assembly driven by an electric motor to deliver variable flow within power transmission housings.

Axial clamping elements with wedge surfaces generate radial force to secure the stator casing against the rotor.

Elliptical cam rings guide rotor vanes along precise paths to prevent sticking in contaminated fluid applications.

A pressure controlled valve manages pump output by shifting positions based on fluid pressure thresholds.

A media change sensor detects liquid-to-air transitions to close valves, preventing backflow and preserving compressor efficiency.