Gearboxes TRIZ Cases

See how perpendicular worm-gear engagement with fixed-end shaft mounting prevents self-locking

See how perpendicular gear engagement and split housing reduce actuator size while maintaining

See how segmented shaft design and radial clutch placement enable high reduction ratio in a com

See how coaxial installation of motor, reducer, and power output module reduces device length f

See how a transmission gear mechanism with housing, water guide cavity, and stop ribs prevents

See how a modular shelving framework replaces chain or belt systems with gear wheels to reduce

See how independent rotation of internal and external gears prevents motor overload when obstac

See how a gear wheel transmission replaces chain or belt systems in compactable shelving to red

See how nesting a planetary gear mechanism parallel to the motor and positioning a torque limit

See how a planetary gear with electronic clutch enables efficient low-speed washing and high-sp

See how a housed transmission gear mechanism with water guide and flexible film seals rotation

See how varying spindle lengths and asymmetric motor placement reduce housing width and enable

See how a hinge-mounted fastening rail with worm gear drive eliminates screw-head gaps and enab

See how screw-spline clutch coupling eliminates the separate clutch motor by using pulsator mot

See how a cone gear and worm gear arrangement with nested planetary reduction enables three spe

See how a nested cone-gear and worm-gear drive delivers three independent speed outlets in mini

See how a screw-coupled clutch uses motor rotation to connect wash and dehydration shafts, redu

See how a segmented housing cylinder with integrally formed ring gear and press-fit attachment

Axial flanges and bushings keep the drive and parking gears concentric on one main shaft, cutting package size and improving NVH.

A single pump with dual sump suction points keeps the motor and transmission lubricated across operating states while cutting parts and space.

A symmetrical housing and bearing-supported gear shaft reduce wheel-side interference, improve durability, and enable one brake actuator for both sides.

Helical grooves on the input shaft and a housing exposure hole drive axial airflow to expel warmed air and keep compact electric actuators cooler.

Dual input shafts, gears, and a rotating barrel-housing layout enable all-direction vehicle motion with lower power loss and easier manufacture.

A radially offset fork and gear reduction replace ball-screw actuation to speed transmission engagement and simplify assembly.

Spring-driven axial gear adjustment keeps multi-stage servo reducer teeth precisely meshed as wear grows, limiting backlash and extending service life.

An electric machine and power turbine help CROR propulsion respond faster in take-off and climb while preserving cruise efficiency.

Fluidly isolated housing compartments with dedicated sumps and pumps keep drive module gears and motors lubricated and cooled during hard maneuvers.

A modular e-axle combines planetary gearsets and synchronizers to expand gear ratios without sacrificing compact packaging or assembly ease.

Selective coupling between a planetary gear path and a direct drive path helps an electrified axle handle varied torque and speed with less wear.

Integrated radial and fixed bearing support stabilizes the clutch hub and output shaft, reducing wobble, wear, and installation space.

Oil galleries, ribs, and gear holes circulate hot lubricant to the housing wall, cooling a high-speed gearbox without external forced cooling.

Integrated gear and motor modules drive vehicle slide-out boxes with precise high-load linear motion while reducing external power needs and installation space.

A nested planetary gearbox and crown wheel differential cut EV drive space and noise while preserving torque transmission and differential function.

Preformed die-cast cooling channels create dense inner walls that limit shrinkage porosity and coolant leakage in powertrain housings.

A rear housing integrates drive, PTO, and hydraulic motors, using forward PTO motor placement to simplify the powertrain and improve work vehicle efficiency.

A spring-preloaded breather valve balances transmission and motor chamber pressure while blocking backflow and liquid ingress.

Radial main bearings nested inside the intermediate gear ring cut axial space, weight, and bearing losses in a coaxial two-motor EV axle.

A one-piece housing combines the motor, gear unit, and differential to cut sealing surfaces, save space, and simplify EV drive assembly.

A dual-gearbox electric motor drives both propeller and auxiliary loads, cutting aircraft conversion complexity, cost, and downtime.

A threaded and interlocked shaft-linkage connection prevents wear, helping active grille shuttles keep accurate, stable opening and closing over time.

An eccentric bushing and lockable mount let one gearbox housing support different gear ratios without remanufacturing.

A lead screw, planetary reduction, and magnet brake automate vehicle door motion to reduce passenger effort and prevent unintended closure.

A nested layshaft transmission uses an axially movable input shaft to add multi-speed reduction without sacrificing cabin space or vehicle clearance.

Independent speed and torque control of two electric motors drives a vehicle hydraulic pump with better stability, redundancy, and cost.

A separator cartridge in the axle drive train vent channel lets air escape for pressure equalization while returning oil mist to prevent leakage.

Centrifugal oil ejection from a rotating transmission component lubricates the axle differential without rails or nozzles, saving space.

Dual intake branches draw cleaner air from inside and outside the engine compartment to cool the CVT while limiting dust, debris, and water ingress.

Radial and axial oil baffles segment reducer oil zones to limit gear churning loss while preserving lubrication in EV powertrains.

Circulating coolant around the motor and gearbox housing blocks external heat, helping protect oil, gears, and motor durability.

An electromagnet and spring move a toothed clutch plate to disconnect the differential smoothly, improving torque transfer while reducing friction and wear.

An added circumferential lubricant collector recovers splash oil and feeds guide bearings to prevent overheating at high transmission speeds.

A fixed-shaft boom-arm-attachment layout aligns the boom within the arm width to simplify electrified construction machine structure and cut overall width.

A cover-integrated cooling unit suspends the capacitor and semiconductor module to save inverter space while improving heat dissipation.

A shaft-integrated membrane vent keeps drive unit casings pressure-balanced while reducing oil wetting and mechanical damage.

A thermally resistant section near the oil level limits vertical heat loss, keeping stored oil warm for cabin or equipment heating.

Supercapacitor-fed electric motors fill torque gaps during gear changes, preventing pulldown and engine stall in industrial loads.

Fixed drive shafts align the boom, arm, and attachment to simplify electric actuation while reducing machine width and preserving stability.

Flex mounts and couplings tune lateral, bending, and torsional stiffness to limit gearbox misalignment and stress under dynamic engine loads.

A horizontal high-resistance section in the drive case limits heat escape from stored oil, helping retain usable thermal energy.

Interlocking shift elements and a blocked third planetary gearset cut drag losses, lower rotation speeds, and keep the gearbox compact.

A wedge-shaped latch shifts the undercut to the housing, enabling simpler gearbox cover molds and lower-complexity wiper motor assembly.

A transverse axle with a three-stage reducer shortens the motor shaft, balances packaging, and improves drivetrain stability.

Lubricant passages, baffles, and deflectors route oil through an axle transmission module to improve bearing lubrication and reduce churning losses.

A hinged multi-part stator antenna ring enables reliable transmission telemetry inside the housing while simplifying shaft installation and retrofitting.

A learned difference-angle correction lets one spindle sensor control shift drum rotation accurately while cutting transmission parts and mechanism complexity.

An inclined case wall and gear rotation guide oil to the pump suction port, preventing air bubbles during acceleration, deceleration, and turning.

Interconnected compensation chambers equalize pressure across sealed drive unit spaces, limiting lubricant transfer and seal strain.

A fixed-floating bearing layout and tuned helical gear contact ratios cut noise and drag losses while preserving drive comfort in vehicle transmissions.

A replacement positioning mechanism locks the axle shift collar in neutral or a selected gear to prevent unintended engagement during towing or limp-home modes.

Parallel ribs and a tapered tubular casing raise axle housing rigidity while cutting wall thickness, mass, and lubricating oil volume.

By joining the motor, reduction gearbox, and axle housings, this drive assembly cuts wasted space and supports more compact vehicle layouts.

A rigid plate reinforces the hybrid vehicle transfer case during crashes, preventing housing cracks and high-voltage cable damage.

A split-torque gear train in one housing delivers high reduction ratio with lower mass and cost while meeting EV NVH and durability needs.

Dual intake branches draw air from cockpit and exterior zones to cool the CVT while limiting dust, debris, and water ingress.

Circumferential grooves and a grease-fed cover disc form a labyrinth seal that blocks dirt and extends shaft seal ring life.

Direct winch mounting on the forward frame improves off-road service access, cuts bracket parts, and strengthens lower front support.

A ring-gear deflector redirects splashed lubricant into carrier passages to improve bearing and gear module lubrication and reduce overheating.

A bearing unit with fixing elements, ring gear securing, and bearing axles stabilizes gear spacing to cut wear, noise, and failure risk.

Offset gears and nested accessory loads compact an aircraft electric propulsion layout while keeping essential loads operating during power loss.

A planetary gear wheel drive separates the motor from the wheel to cut unsprung mass and keep power transmission continuous during suspension movement.

A modular plug-in gearbox keeps synchronous motors near constant optimal speed, improving actuator efficiency while limiting heat, space, and parts.

A gas-permeable pressure equalization path through the plug connector blocks lubricant ingress and keeps the EV parking lock actuator reliable.

Angled twin axle drives with shared motor and gearbox architecture cut part cost while separate oil sumps and pumps improve cooling and reduce splash losses.

An offset rear housing layout places the hydraulic motor opposite the control lever to improve hydraulic integration and driver access.

Concentric stacked pinion shafts with opposed helix gears split motor torque while canceling axial loads and shrinking EV drive unit housing.

An aluminum housing with integrated actuator mounting and centralized dry-sump lubrication cuts transmission weight, noise, and failure-prone interfaces.

Two electric motors switch between speed and torque control to stabilize hydraulic pump operation, cut cost, and add redundancy.

Coaxial motor shafts and nested gear trains shorten the drive path, cut width, and amplify left-right torque difference for compact wheel drives.

By overlapping the inverter with the differential and gear space, this layout cuts vehicle drive unit radial size for tight underfloor packaging.

Intersecting gear input and output shafts keep a dual-motor drive compact at higher output while helping cancel vibration from opposing rotations.

A common transmission connection and shared fixing frame let standard and high-spec HSTs be swapped quickly without removing the transmission.

Axial shaft passages feed gearbox oil into a sealed cavity to cool and lubricate the rotor bearing, reducing wear, thermal gradients, and NVH.

A GMR sensor reads voids in a target wheel through a rotating shell to detect transmission shaft speed and direction with lower weight and energy loss.

Overrunning clutches let an engine or electric machine drive the same propulsor shaft, improving fault tolerance and energy transfer efficiency.

Preassembled case, main gear, and bearing let a threaded shaft be reverse-inserted, improving linear actuator assembly flexibility and efficiency.

Elastic attaching parts bonded between split housing sections absorb stress and suppress rigid-body-mode noise and vibration without changing the external device.

Partition walls create oil storage and inlet zones in an in-wheel drive, improving cooling and lubrication while limiting high-RPM oil drag.

Internal oil passages built into the drive housing replace external cooling pipes, shrinking the unit and easing vehicle installation.

A dual-surface plate layout separates the parking pawl from detent parts to shrink electric vehicle transmission axial size.

A bayonet coupling with hollow cylindrical collars speeds geared motor assembly, improves centering, and keeps the motor-gearbox joint secure.

Multiple planetary gearsets, selective couplers, and a retarder expand forward and reverse speed ratios without a single cumbersome geartrain.

A dual-reservoir driveline layout uses a feed passage and multiple outlets to cut drag losses while directing oil to needed components.

Specific fan inertia and shaft stiffness ratios isolate gearbox loads and suppress vibration in larger geared gas turbine engines.

An upright electric pump with flange-and-jig support improves positioning accuracy and shortens transmission assembly time.

Clutch-switched differential gearing lets aircraft powerplants reroute engine and accessory power to improve thrust stability and limit boost-engine temperature swings.

Sloped recesses and rib placement balance molten metal flow around shaft through-holes, reducing casting cavities and improving case yield.

Separate lubrication circuits and adaptive pressure control keep turbine, gearbox, and plunger pump operation stable in high-power fracturing.

By overlapping the oil cooler with the upright control valve, this transmission housing cuts package size and oil path resistance.

Adjustable split-sheave rollers keep a positive hold on flexible lances while passing larger couplings and handling varied hose diameters.

A recessed filter shared by two oil paths keeps oil clean in a power transmission housing without increasing overall size.

A dual-stage gear and ball-screw electric steering layout delivers high steering force for trucks and buses while enabling automated control.

Flexible mounts and couplings tune lateral, bending, and torsional impedance to limit turbine gearbox misalignment and uneven gear loading.

A funnel-shaped rib and drilled collecting pan guide splash oil to bearings while reinforcing the transmission housing and simplifying casting.

An internal retention feature locks the output shaft after closed-box insertion, simplifying assembly, saving storage space, and avoiding extra parts.

Precise shaft spacing, a roller chain tensioner, and added guides cut chain oscillation and wear while improving snowmobile transmission service life.

A clutch and retraction knob let the stapler drive assembly disengage and retract manually when power is lost or components fail.

A spring-loaded ball valve breather and flexible central seal equalize gearbox pressure while limiting oil leakage and water intrusion.

An upright electric pump with a top-facing connector in a recessed case simplifies cable routing and saves space in the transmission housing.

A decoupled power turbine and gearbox replace long nested shafts, improving rotor stability while creating space for aircraft engine heat recovery.

Cooling ribs, spaced foot plates, and identical housing halves improve air cooling, compact mounting, and operation in either orientation.

A sized lubricant gutter improves gearbox scavenging while limiting space use, reducing windage losses and thermal load in gas turbines.

A split housing with axial bore, annular spaces, and cover-mounted seals supports transmission variants while maintaining oil flow and cooling.

Alternating fixed and suspended guide ribs form an S-shaped coolant path that expands contact area, prevents eddies, and improves gearbox heat exchange.

A boltless windage cover shields ring gear fasteners from lubrication fluid, cutting shear losses and output shaft interference at high speed.

A guide wall contacts the shift/select shaft before engagement, stabilizing posture and simplifying transmission case assembly.

A sealed lubricant chamber built into the planet carrier improves planetary bearing lubrication and gear cooling without separate recirculation hardware.

A rotating spherical shifter exposes either gear controls or an illuminated display to improve visual recognition without complex mechanical linkages.

A heat insulation pad separates engine heat from the ignition unit while dissipating internal heat, extending distributor life and easing angle adjustment.

Directly placing radial and axial bearings on intermediate shaft ends saves gearbox space, reduces parts, and simplifies the housing.