Engine Fuctions TRIZ Cases

Centrifugal cup distribution replaces bulky rotating seals in epicyclic gears, reducing oil consumption and improving reliability.

Parallel oil branches with fixed restrictors manage flow distribution via viscosity changes.

Cross-over holes in divider ribs connect leading edge and side hybrid cavities, balancing pressure drop while eliminating metering plates.

A partial superheat cycle uses combusted oxidizer heat to drive pumps, avoiding kerosene deposits and reducing system mass.

A radial locking member drives into a conical surface to prevent rotation between wind turbine parts.

A thermal shield faces combustion gases to protect the shroud support structure.

Opposite helical teeth angles on flexpin shafts counterbalance axial forces to withstand high loads without causing planet skewing in wind turbine gearboxes.

A turbine shroud segment uses a pressure receiving portion to release radial engagement for easy removal.

Interlocking mechanical joints with reinforcing pins prevent brittle bond line failures by requiring fiber breakage instead of interlaminar shear.

Integrated steam generator recovers heat from flue gases to treat fuel gas, resolving low efficiency in dual extraction systems.

A casting core with variable thickness sections tailors internal airflow paths to specific cooling requirements.

A vacuum pump sensor uses spaced electrodes and a capacitance detection circuit to measure deposited material thickness inside the flow path.

A continuously variable transmission adjusts power ratios between a source and pump using rolling planetary members.

An electric motor rotates the engine at low speed after shutdown to prevent thermal bowing, reducing reliance on external power sources.

Windmill bypass valve directs fuel through a shutoff pressure line to assist the fuel delivery valve in closing.

Segmented cooling channel inlets with material webs stiffen the rotor blade root, resolving the trade-off between thermal management and structural strength.

A turbine airfoil leading edge uses nonuniform internal ribs to direct coolant flow and increase turbulence for better heat transfer.

Axial electric motor placement between reduction gearbox and propeller optimizes rotational speed matching while reducing component wear.

Segmented seal cavities isolate ceramic matrix composite blade tracks from direct gas pressure loads.

Discharge fins align primary gas flow with secondary streams, reducing separation risks and aerodynamic losses.

Segmented straight blades and a counterweighted base stabilize the structure against tidal forces while magnetic coupling isolates the generator.

Fiber-optic sensors measure rotor blade bending moments and nacelle deflection to determine tower loads.

Discrete X-shaped reinforcement members prevent turbine airfoil bulge under pressure, eliminating auxiliary ribs that complicate cooling and add weight.

A turbojet thrust reverser locking system uses geometric constraints to secure the movable cowl without electrical actuators.

A swirl inducer in a connecting line creates counter-swirl in the suction pipe, reducing start-up vibrations without complex generators.

Discrete fins in the trailing edge create a zigzagging coolant passage that increases heat transfer surface area while restricting flow.

A foam cleaning system coats and scrubs turbine internal surfaces to remove fouling materials using pressurized gas and liquid agents.

A geared turbofan engine employs a planet gear mechanism to decouple low-pressure spool and fan speeds, reducing turbine volume and increasing power density.

A wind turbine evaluation device uses leaky feeders to steer electromagnetic signal beams for blade inspection.

Hidden linkage assemblies nest thrust reverser rods in cavities between blocker doors and transcowl layers to eliminate exhaust flow drag.

A closed-loop Rankine cycle system uses a working fluid to extract thermal energy from gas turbine bleed air.

Curved flow passages in an annular wing member scoop cooling fluid from disc cavities to prevent hot gas ingestion and reduce purge air requirements.

Segmented silencer baffles with interlocking joints reduce maintenance time while maintaining noise attenuation in gas turbine engines.

A turbine lubrication system uses a dynamic flow regulator to manage fluid distribution across parallel feed circuits.

Variable pitch turbine blades adjust torque to stabilize underwater device posture, eliminating complex tether cable length control systems.

Molded composite preform modules with direct-contact electrical traces form continuous circuits within a single structural component.

Segmenting the blade stack allows independent centroid shifts that resolve the trade-off between axial frequency margins and aerodynamic performance.

Asymmetric breakout angles in showerhead cooling holes generate dense cooling films that reduce local temperatures around the stagnation zone.

Control valves direct dry air through seal locations to preheat turbine components, reducing thermal expansion stresses and extending component lifespan.

Curved deflecting bends reduce pressure losses by twenty percent, enabling effective ice prevention at the tip region without increasing fan power.

An outer composite layer cures via engine heat to shield the inner material, eliminating external thermal protection weight.

Primary gas flow cools the stator of an aircraft turbine electrical machine, eliminating oil pollution risks while maintaining optimal operating temperatures.

Sliding thrust reverser doors move along rails to resolve wing interference and improve maintenance access.

Varying impingement hole density and diameter prevents thermal stress in gas turbine vanes.

A turbine frame assembly uses a heat shield to block radiant heat transfer between the fairing and the structural frame.

Adapter connects mobile crane to turbine casing using existing through-bore, eliminating heavy counterweights and enabling safe component handling.

Sealed casing with pressurized air protects electrical connections from oil ingress, enabling axial removal for faster maintenance.

Circumferentially varying tooth trace correction on stationary ring gears compensates for uneven torque, enhancing wind turbine gearbox durability.