Pump Components TRIZ Cases

A tie bolt venting and sealing arrangement monitors incipient leakage using annular seals and internal conduits within a turbomachine rotor structure.

Exterior cooling channels on a gas turbine transition duct enable direct heat removal from the aft section without requiring an integral aft frame structure.

Self-lubricating plastic gears in a variable inlet guide vane prevent binding and distortion while maintaining structural strength.

A vacuum pump uses displacement signal thresholds to detect rotor-stator contact without vibration sensors.

Speed-reduction traction drive interfaces a low-speed electric motor with a high-speed rotodynamic compressor.

An annular screen plate mounted inside the casing distributes air intake evenly to eliminate static pressure heterogeneities.

Circumferential O-ring or lip seals on a centrifugal pump flanged sleeve divert abrasive fluid flow, reducing erosion on the drive shaft key.

Segmented blade root with upstream extension prevents excessive stress in the spin cone and root, enabling lower hub-to-tip ratios without weight penalties.

A built-in electric air pump uses a rotatable inner casing to direct airflow through distinct ports.

An impeller-driven blower mounted on a cargo mover generates pressurized air locally, eliminating long compressed air hoses and reducing travel time.

Elongate bristles absorb impact energy from broken fan blades through friction and deformation.

A 2-piece axial fan blade uses decoupled twin rod profiles to maintain structural integrity and airflow uniformity.

An extended outer barrel projects axially aftward from the bulkhead to increase the laminar flow area on the nacelle inlet.

Angled fasteners join composite air intake walls to fan casings, eliminating delamination risks at the 90-degree elbow.

Direct pyrometer measurement captures thermal stress during transients, avoiding indirect casing errors.

An integrated pressure plate and port plate design reduces pump weight by eliminating separate components.

A fan shroud uses a locking slot and hinge slot to secure pins, resolving maintenance access versus sealing reliability.

A guide wall channels bleed air axially along the rotor discs to define an annular passage.

Interlocking tabs align adjacent aerodynamic sections before adhesive bonding, preventing air leakage and noise from gaps between segments.

Separate magnet carriers enable independent ring assembly and axial adjustment, simplifying installation.

A rotary volumetric pump controller rotates the motor in reverse before shutdown to reduce chamber negative pressure.

A fan assembly uses an external drive engaging shroud teeth to rotate blades without a central hub.

Opposite-side ring shroud fixing prevents structure member interference during work vehicle blower clearance adjustment.

A permanent-magnet drain pump integrates the stator core into the rotor housing to reduce magnetic air gaps and improve electromagnetic efficiency.

Curved bottom walls in recessed pockets eliminate stagnation regions, lowering metal temperatures and windage losses.

A gas turbine engine uses an axially movable fan variable area nozzle driven by a core gear system to adjust the exit area.

An adjustable inlet mechanism reduces effective diameter to shift the surge line, stabilizing flow and preventing compressor surge at low engine speeds.

Segmented axial flow fan blades with co-planar aerodynamic protrusions reduce vortical effects and improve air flow head.

A recirculation damper creates an axial gap with the fan inlet ring to guide airflow attachment.

A low-pressure screw compressor uses a single loose deep groove ball bearing on the inlet side and a fixed cylindrical roller bearing on the outlet side.

A flywheel energy storage fan uses a vacuum chamber to support a rotary body on the motor shaft.

Axially offset fastener flanges eliminate filler requirements and reduce strand layers in composite guide vane fabrication.

A hollow fan blade incorporates a honeycomb filler within a cavity to enhance structural integrity and impact resistance.

Curved portion at positive pressure shroud corner reduces noise without lowering static pressure or airflow rate.

A centrifugal compressor inlet mechanism switches between two discrete positions to adjust the effective flow area based on operating conditions.