Gearboxes TRIZ Cases

A hollow sun gear and spline-linked planetary carrier cut gearbox size and weight for high-power wind transmission.

By placing the bearing outside the sealing ring, lubricant reaches the seal, limits heat buildup, and preserves long-term sealing in speed reducers.

A tuned epicyclic gearbox stiffness range helps aircraft engines absorb small gear errors while limiting tooth deformation, wear, and vibration.

A curved gear housing and stamped oil trough guide splash oil into grooves and higher lubrication points while reducing oil loss and material use.

A shaft-mounted fan and hood direct dense airflow over the transmission to improve gearbox cooling without added cooling system complexity.

Shape memory alloy dampers in an epicyclic gas turbine gearbox adapt stiffness with temperature to isolate vibration and protect rotating components.

Radial ribs around gearbox bearing seats spread heat into lubricating oil while stiffening the housing and keeping die-cast manufacture simple.

Nested mounting features and sunken output shaft bearings let this hobby robotics gearbox raise torque without adding bulky assembly size.

A variable-height gear cover cuts axial installation space while maintaining moisture-tight sealing and torque in window lifter drives.

A load cell between the gearbox cover and brake assembly measures input and back-driven output torque without complex hydraulic sensing.

A threaded actuator link moves the CVT half-pulley more precisely, improving gear ratio control while reducing axial thrust on the drive shaft.

Segmented high-pressure chambers linked by oil and throttle channels cut leakage and improve gearbox transmission response and reliability.

Replaceable wear sleeves isolate bearing wear from gearbox case bores, avoiding repeated planing and extending repair life.

A gearbox efficiency rating links oil flow, fan diameter, and thrust to simplify geared turbofan development and improve manufacturing precision.

A carrier web placed between support flanges and ring gear preserves assembly clearance, avoids tooth contact, and improves lubrication.

Three planetary gear sets with fluid-controlled locking mechanisms maintain power during shifts, reducing wear in electric working-machine transmissions.

A fitted limiting member on the steering output shaft constrains unwanted circumferential movement, reducing wear and preserving steering reliability.

Pressure-managed oil flow between transmission and differential housings cuts splash losses and foaming while sustaining continuous lubrication.

Alloy-coated journal bearings and controlled oil films cut gearbox power loss while preserving wear resistance at high load and sliding speed.

A reinforced cavity structure preserves reduction gear strength while enabling lubricant flow and air removal in enclosed component spaces.

Pressurized lubricant distribution boxes split oil flow in parallel, giving lower transmission components controlled lubrication without complex channel networks.

Distinct hydrodynamic guide surfaces split double-toothing loads in an aircraft reducer, cutting oil use, pressure peaks, and misalignment risk.

An overmolded ferrous weld ring joins a ring gear to a dissimilar-material differential case without preheating, reducing cracking, weight, and assembly steps.

Centering pins and single-side bearing support align intermeshing gear wheels while reducing tolerance chains, shaft bending, and assembly complexity.

A sealed coupling housing encloses the gearbox so standard steel gears can be used while reducing contamination risk and simplifying replacement.

Specified planet carrier stiffness ranges keep epicyclic gears aligned under load, improving load sharing and resisting gearbox distortion.

A coaxial actuator and shift drum create a straight drive path, cutting linkage complexity, weight, and sensor interference in motorcycle transmissions.

Multiple stay rods and closed lubrication channels spread load, reduce uneven wear, and let damaged power end sections be replaced individually.

A dual range-unit and reduction-gear layout adds crawling speed and more shift variants while keeping clutch count and transmission size low.

Gravity-fed dual reservoirs keep wind turbine drive train components lubricated during grid loss while limiting friction losses and managing oil temperature.

A deformable internal shield diverts or absorbs high-energy spalled particles in a planetary gearbox to limit casing damage and improve engine reliability.

An axially offset oil drainage channel keeps sump oil available and blocks air from reaching the hydraulic suction port during hard acceleration.

An external actuator and shared pivot cut park lock part count and assembly effort while keeping the gearbox housing sealed and compact.

Tapered circumferential projections and an inclined contact surface improve CVT case sealing to block water ingress on rough terrain.

A deformable rack and curved take-up track extend shift stroke in tight gearbox space without retrofitting automatic transmissions.

An asymmetrical housing with matched connection surfaces cuts geared motor volume and oil use while preserving bidirectional mounting and torque support.

A fixed outer screw and recirculating balls replace bulky hydraulics, delivering compact, precise subsea linear actuation with mechanical override.

A mirror-finished area inside the transmission case reveals a blind seating portion, improving control valve assembly alignment and work efficiency.

A localized water-repellent pattern and drain holes shed rainwater from transmission case connectors, limiting salt buildup and corrosion.

Dual fulcrum supports shift the worm shaft pivot toward the tooth contact plane, cutting steering gearbox rattle, noise, and friction losses.

Modular drive and transmission modules compensate dimensional tolerances in steering column adjusters, cutting wear, noise, and assembly complexity.

A resin housing encloses both sides of the gear train while external metal shaft support helps block driving noise in image forming equipment.

Ribs and leading projections spread load in plastic planet gears, improving fatigue strength, assembly ease, and low-noise torque transfer.

An L-shaped rail traction transmission lowers floor height while improving oil splash lubrication, sealing, and service life in low-floor vehicles.

A baseplate, tubular rivets, and bolts combine motor, gearbox, and drive circuit mounting to shrink electric power steering package size.

Elastic projecting webs seal a split transmission housing while preserving bearing bore geometry for precise repeated assembly and disassembly.