Engine Fuctions TRIZ Cases

Periodic rim geometry aligned with the teeth stiffens the tooth root area, raising web gear load capacity without adding much weight.

Twin idler gear stages create shaft speed differential in a compact gas turbine layout while alignment landmarks help minimize backlash.

Brazing a cover onto an open vane body creates precise cooling passages and dual walls while avoiding casting limits on geometry and material quality.

Specific outer and inner tooth roll angles help an integrated drive generator hold constant speed and stable power frequency across engine speed changes.

A replacement gear tooth profile with defined roll angles helps integrated drive generators hold constant output frequency despite variable shaft speed.

An annular web between coaxial sun gear rings absorbs torque-induced misalignment to equalize tooth loads and reduce stress in aircraft reducers.

Using an oil-driven jet pump to create underpressure in a shaft bearing housing prevents seal leakage during turbocharger idling and part-load.

An annular deflector redirects centrifugally discharged oil into an offset gutter, reducing aeration, foaming, and oil bounce-back.

A planar linking member couples aircraft engine accessories to shift resonance away from the gearbox cover while preserving weight and envelope limits.

A monolithic electroformed heat exchanger removes coupling failure points and distributes hoop stresses for more reliable gas turbine heat management.

A raise-and-deploy sensor mount keeps marine sensors rigid below the hull for repeatable wildlife monitoring while allowing easy maintenance.

Separating long-term deterioration from short-term tuning enables early gas turbine model calibration while preserving FD&I and health monitoring accuracy.

A clutchable very low-speed motor lets the accessory gearbox turn the high-pressure spool after shutdown while staying protected during flight.

A windage blocker and directional fitting capture wept oil in a gas turbine bearing compartment and return it to reduce leakage and contamination.

A floating-base inverted pendulum damper achieves low-frequency building vibration control without the long pendulum length and space demands of conventional TMDs.

Bellows and labyrinth seals keep heated anti-icing gas contained while accommodating duct expansion, vibration, and fluid ingress.

Closed-section bearing ducts route gearbox oil through highly loaded zones, boosting heat transfer and extending plain bearing life.

A dynamic seal track locks the distributor-ring nut to stop loosening while preserving bearing lubrication and cooling in aircraft turbomachines.

Machine learning analyzes wind turbine logs, telemetry, and configuration data to narrow fault root causes and cut troubleshooting time.

Machine learning classifies and locates likely wind turbine fault causes from logs and telemetry, reducing troubleshooting time for technicians.

A two-stage compound planetary gearbox lowers turbomachine gear ratios while reducing size, part count, wear, and maintenance needs.

Compressed air is directed through a circumferential nozzle to speed rotor stack cooling while preserving roundness and squareness during assembly.

Interference-fit end caps seal a journal bearing filter without ring seals, improving compact lubricant filtration in turbine engines.

An axially movable thrust ring with lubricant pockets maintains planetary carrier lubrication despite axial and radial offsets, reducing loss and cost.

Split cage shells with ball-joint connections distribute reduction-gear loads, easing assembly while reducing bulk in aircraft turbomachine planet carriers.

Circumferential suction holes draw airflow into the tower to weaken tower shadow, suppress vortex vibration, cut noise, and improve wind use.

Circumferential fibers in a gear wheel groove retain and crush breakage fragments, lowering ejection energy and casing penetration risk.

Radial pins through axially assembled cage shells replace bulky flanges, easing satellite mounting while transmitting reducer torque.

Stepwise fuel pressurization lowers actuator control pressure differential, enabling low-speed movement and smaller pump sizing.

Pivoting scoops recover stagnant lubricant during windmilling and low-speed operation, then retract at high speed to avoid churning.

Integrated annular oil chambers in a turbine gear planet carrier simplify lubrication delivery, cut part count, and reduce oil leak risk.

Separating long-term deterioration from short-term tuning in gas path analysis improves gas turbine engine parameter estimation accuracy.

Citrate-based aqueous damper fluid raises density to suppress tower oscillations while avoiding corrosion and harmful salt additives.

An epicyclic gear train and dual electric machines replace hydraulic differentials to hold generator speed and boost starting torque without added size.

Multiple bendable tabs and a retaining feature let bolts lock at the target torque without precise head orientation in aircraft engines.

A spring-biased tine finger holds the lock sleeve from relocking too early, preventing false signaling and ensuring correct actuator stow locking.

Pressurized-oil damping at the gearbox end cuts flexible coupling shaft vibration, reducing bushing wear while preserving misalignment accommodation.

Rotation-locking elements built into the annular track stop nut loosening in a compact bearing oil distributor, protecting sealing and oil retention.

Directional wave fields are identified from xyz motion data and fused across sensors to deliver real-time wave forecasts with fewer probes.

Grooves and circumferential slots route lubricant to the rotor-bearing interface, forming a thin film that limits cavitation and surface damage.

A hydraulic piston integrated into the bearing maintains axial preload in gas turbine standby mode, preventing load reversal and bearing wear.

A rotating spray bar with scavenge windows lubricates sun-planet gear meshes and recirculates heated oil in a geared gas turbine engine.

A stacked power unit with top air intake and lower cleaner shrinks fracturing equipment for remote transport while preserving maintenance access.

A spiral gutter channel improves turbine gear oil capture, cuts gas-to-fluid ratio and air choking, and preserves lubrication during negative g maneuvers.

A dual-spool differential combines LP and HP spool inputs to narrow accessory output speed range and cut low-speed torque.

Double helical gears in an epicyclic turbine gearbox cut transmission error and vibration, improving torque transfer and component life.

A nested inner and outer planet pin increases bearing diameter without enlarging carrier plate openings, preserving rigidity and easing assembly.

Standardized rolling bearings and spacer elements let planetary gearboxes handle different loads and speeds with lower part variability and simpler production.

A one-way gearbox and clutch layout converts wave motion from multiple directions into stable rotary output without torque cancellation.

Threaded bushings on a stud adjust bracket gap to absorb thermal expansion while improving stiffness and vibration control in engine accessory mounts.