Oscillating Piston Engines TRIZ Cases

Non-uniform female rotor lobe geometry reduces gas leakage loss through outer diameter clearance while preventing tooth flank separation vibration.

A screw compressor slide valve mechanism uses a third inflow hole closed by the piston to isolate chambers.

Integrated injection pipe throttle design reduces compressor vibrations caused by refrigerant pressure pulsation.

Bean-shaped dowels rigidly hold hydraulic machine body and flange together with minimal relative displacement.

A fluid pump barrier features a bridge with a height transition to facilitate gradual fluid re-expansion.

Segmented nozzles deliver optimized liquid volumes to specific rotor chambers, suppressing temperature rise while reducing stirring work.

Perforated vane coatings store lubricant to reduce friction and leakage loss in single-vane vacuum pumps.

Elevated oil outlet prevents gravity-driven lubricant backflow, eliminating pressure pulsation and operation noise in vehicle vacuum pumps.

A pressurized rotary actuator generates rotational torque via a piston in a chamber.

Multiple hydraulic cylinders impart synchronized driving force to a slide valve for rapid volume control.

Seating grooves with stepped parts and spaced guide pins disperse stress to prevent deformation and noise in orbiting scroll compressors.

Merged bearing and seal flanges eliminate separate fastening, reducing axial span and resolving maintenance complexity.

A friction drive pump assembly uses a clutch and Belleville spring to engage the gerotor only when needed.

Angularly offsetting adjacent rotary combustion units cools hot sections using cold housing areas, reducing thermal distortions and dynamic imbalances.

Offset groove low points ensure complete chamber filling at high speeds, eliminating cavitation noise and wear.

A hydraulic motor clutching mechanism uses a casing duct flow limiter to raise internal pressure and control piston extension speed.

Magnetic gear system transmits torque between rotors without mechanical contact, eliminating lubricant contamination and wear in screw compressors.

A vane liner positions a pre-pressurization opening upstream of the discharge chamber to seal suction flow before fluid transfer.

Segmented rotor case bodies enable front-loaded seal replacement, resolving maintenance reliability trade-offs while preserving pumping volume.

An equal-walled outer rotor in a gerotor pump allows fluid passage to handle high gas volume fractions in wellbore applications.

A rotary vacuum pump integrates a compensating channel and valve to manage oil flow between the discharge and oil chambers.

A variable output gerotor pump adjusts volumetric displacement via a rotatable control ring to match lubricating oil flow rates.

A movable buffer member sits between the shaft and eccentric bush recess to prevent metal-to-metal contact.

Segmented pump and pressure housings decouple deformation from the rotor assembly, resolving complexity trade-offs in single-well boosting.