Friction Clutches TRIZ Cases

Bolted or riveted coupling with nested tabs helps the ring gear and clutch basket withstand tangential, radial, and axial gear mesh loads.

Voltage-driven clutch electrodes regulate torque and allow slip at a set threshold, reducing wear, bulk, and power use in power tools.

Voltage-driven electrode attraction enables precise torque limiting in power tools while reducing clutch wear, weight, and continuous power demand.

Multiple urging members and polygonal weights stabilize radial clutch movement, reducing size and easing assembly.

A roller cage, cam housing, and centering springs let the differential switch between torque transfer and engine braking on steep descents.

A regulation cup disengages a one-way spring clutch so the actuator holds position with zero drive current, cutting power use and overheating.

A porous vent filter equalizes clutch actuator pressure while blocking transmission oil and simplifying housing assembly.

A different-diameter auxiliary clutch plate boosts clutch capacity without extra axial stack, preserving compact vehicle installation.

Varying circumferential backlash between adjoining clutch plates maintains oil distribution, prevents adhesion, and preserves stable torque behavior.

Multiple circumferential springs return clutch masses accurately, enabling compact motorcycle power transmission with stable engagement and cut-off.

An added axially compressible fulcrum element softens the clutch transmissibility curve to reduce jerking and improve engagement control.

Segmented cam abutment surfaces prevent sandwiching in a cam clutch, enabling easier tilting without deforming the cam or posture changer.

A spring-biased nested clutch switches between two output shafts with less actuation complexity, lower energy use, and compact packaging.

A replaceable spline ring lets one sealed clutch fit different transmission shafts, cutting kit variants, ordering errors, and downtime.

Localized weakenings let the strut retainer flex under overload, preventing breakage, debris release, and strut dislodgment.

Spacer rings create floater ring engagement on a single-disc flywheel, enabling a dual-disc clutch retrofit with higher torque capacity.

Holding grooves reduce clutch spring restoring force before assist cam contact, smoothing engagement and lowering mechanical stress.

Auxiliary members and radial biasing reduce cam sliding, improve engagement, and stabilize torque transfer with lower clutch complexity.

An oil receiver beside the clutch fitting surface guides shaft oil to cut sliding resistance, reduce wear, and support a more compact clutch.

An integrated cover plate with tabs and an inertia-increasing part replaces riveted dual plates, cutting assembly cost while preserving torque smoothing.

Torque and current threshold detection identifies piston and clutch touch points to track plate wear and prevent clutch seizure.

Inclined, tapering oil grooves in a wet multi-plate clutch improve lubricant removal, cut drag torque, and prevent rapid initial biting.

Elastic segments in the support washer maintain diaphragm spring preload, compensate joint wear, and preserve full clutch disengagement.

Selective oil supply to dual hydraulic chambers locks and releases the torque converter clutch while reducing oil pump size.

Recessed assist cam surfaces cut clutch mass while preserving the cam strength needed to transfer and interrupt rotation driving force.

Controlled clutch slip absorbs sudden driveline shock loads, preventing mechanical failure in heavy-duty vehicle transmissions.

Controlled clutch slip absorbs driveline shock loads during sudden transitions, preventing mechanical failure while limiting clutch wear.

Placing the disc spring between adjacent clutch plates closer to the pressure plate helps suppress rapid assist torque rise and vibration.

Oil routed through a crankshaft conduit lubricates and cools a clutch separated from the crankcase, improving driveline durability.

A radially inner torque path and cushioning action keep clutch plates engaged smoothly, avoiding dead-zone shock and improving vehicle operability.

An inner-positioned center fitting and oil receiver guide clutch oil to cut sliding resistance, wear, and clutch size while maintaining lubrication.

A centrifugal weight and dual cam clutch structure removes engagement dead zones, smoothing torque transfer while maintaining reliable disengagement.

A nitrogen-containing additive raises wet clutch friction while cutting ZnDTP-linked sludge and sulfated ash in motorcycle engine oil.

A reducer mechanism cuts clutch spring restoring force before assist cam contact, smoothing engagement and lowering mechanical stress.

By moving the disc spring outside the clutch springs, this clutch layout increases spring diameter and enables more flexible load setting.

Radial oil grooves in the clutch output shaft holder route oil from the shaft hole to outer rotary plates without sacrificing flat contact.

Recessed assist and slipper cam portions cut clutch weight while preserving pressing force and rotation drive transfer.

A nitrogen-containing additive package maintains wet clutch friction and anti-wear performance while reducing sludge and sulfated ash.

Overlapping fitting teeth and oil supply holes keep clutch oil reaching output-side rotating plates during disengagement and half-clutch states.

Recessed tooth edges enlarge oil return paths in an oil-flooded clutch, cutting viscous drag while preserving torque contact and wear resistance.

Varying clutch disc tooth and housing groove widths cuts circumferential play, reducing noise and wear during torque transmission changes.

Urging structures stabilize clutch weights axially while preserving radial motion, improving thrust transfer under engine vibration.

Axial recesses in clutch cam portions cut cam weight while preserving the pressing force needed to transfer and interrupt rotation.

Urging members between the holder and pressure-contact member keep axial thrust transfer stable while clutch weights move radially under vibration.

Splined involute hubs and spring damping absorb axial and angular misalignment between flywheel and gearbox while reducing noise, wear, and stress.

Overlapping clutch center and pressure plate teeth guide more oil to output-side rotating plates, improving lubrication and reducing wear.

Replaceable steel pins protect the clutch basket from disc notching and grooving while improving lever modulation, drag, and shock damping.

Boss-guided circumferential movement keeps clutch cam portions from surface contact, enabling smoother torque transfer and interruption.

Laser-formed V grooves are crushed during hot pressing to create uneven surfaces that retain more lubricating oil and improve wet friction plate cooling.

Tapered projection ends with reduced-angle cut surfaces help aluminum splines resist NC lathe chipping and maintain clutch force transmission.

An angular stroke limiter controls pressure plate travel through relative rotation, reducing engine braking effects without coupling loss.

Spring-biased dual clutches switch EV torque paths with less actuation energy, fewer errors, and compact transmission packaging.

A cellulose layer bonded to a fiber-filler base improves wet strength and durability for oil-submerged clutch and torque converter friction materials.

Multiple adapter hole patterns let one sealed clutch fit different flywheels, cutting kit inventory, delivery delays, and replacement time.

Form-fitting contours pre-position coaxial hub partners for riveted joining, cutting manual alignment time and assembly complexity.

Circumferential back-side grooves and through holes route oil through a cone clutch to improve cooling, lubricity, and wear control.

Segmented pressure-torque ranges improve clutch shift element engagement precision from touch point to contact point in transmissions.

An added compressible fulcrum spring softens the clutch torque curve during disengagement, reducing tearing and jerking in vehicle actuation.

Independent holder and press movement cuts clutch size, prevents mass drop-off during assembly, and preserves reliable driving-force transmission.

Sliding weight plates convert centrifugal force into clutch pressing force, cutting squeezing force while saving space and supporting torque transmission.

An integrated axial adjuster lets one clutch cover or flywheel assembly fit different diaphragm spring heights with simpler assembly.

Oil passages and inclined cone surfaces improve clutch lubrication and cooling, enabling high torque transfer in a compact vehicle clutch.

A clutch lifter plate uses a radial position restricting portion to contact a boss portion for precise axial alignment.

A step portion thins the first sheet portion to provide material for an integrally molded centering collar, maintaining cone strength.

A clutch mechanism uses a rotating nut on a threaded rod to adjust the diaphragm position for wear compensation.