Oscillating Piston Engines TRIZ Cases

Adjusts rotor axial play by pressing bearings into specific seats, eliminating variation from component tolerances.

Offset vane tip radius distributes discharge pressure over a larger contact area to maintain sealing integrity in variable displacement pumps.

Multi-port vane conduits expand cross-sectional area to optimize gas expansion, reducing pollutant emissions and improving energy conversion efficiency.

Offset pump housing interface with centering action resolves indeterminate installation positions and reduces structure-borne noise.

Hydroforming a cylindrical casing into a precise helical shape eliminates flow pulsation and reduces material waste in progressing cavity pumps.

A resin oil pump design maintains a specific gap between the housing and cover flanges to ensure accurate rotor positioning while reducing overall weight.

Roller vanes constrain the orbiter to prevent fluid leakage between chambers, simplifying manufacturing while maintaining mechanical efficiency.

An asymmetric rotating core engine increases power density and mechanical efficiency by optimizing combustion cycles.

Applying a diamond-like carbon layer to the stator bore or rotor outer surface lowers friction loss and wear, extending operational life in deviated wellbores.

A nested pinion drives the internal gear within a compact cavity to manage fluid flow.

A vane cell pump uses a C-shaped guide ring to constrain guiding blocks against the stator surface.

Multi-channel rotary progressing cavity pump creates axial and peripheral fluid transport channels using meshed lobed rotors.

A recessed casing part maintains working chamber communication until volume reaches zero to prevent liquid over-compression.

A three-part metal pump housing forms a duct with an undulating rotor collar to simplify assembly and cleaning.

A sanitary pump assembly uses a seamless one-piece auger housing to merge feeder and pump sections for smooth material transfer.

Differing port geometries stagger compression pair opening to reduce fluid flow surges and vibration.

A fluid-actuated rotary drive device uses a snap-in connection to join the space divider and stop element into a single pre-assembled unit.

An electromechanical controller drives a lead screw to adjust pump displacement for precise fluid delivery.