Fluid Actuated Clutches TRIZ Cases

Variable sweep increase of lockup clutch hydraulic pressure suppresses shock during complete engagement when zero-slip control fails.

Offset upstream and downstream oil passages reduce conduit resistance, preventing operation pressure generation at low temperatures.

Static expansion chamber absorbs clutch pedal vibrations between 50 Hz and 225 Hz, eliminating diaphragm wear while maintaining ride quality.

A ball detent latching clutch mechanism holds the apply plate engaged using mechanical locking.

A hydraulic clutch inching control device regulates oil pressure to maintain the clutch plate heat generation rate within safe limits.

Stamped clutch carrier merges hub and cover into single sheet metal unit with axially extending fingers.

A clutch actuation assembly integrates an automatic actuator within a hydraulic intermediate cylinder to enable seamless manual and automated shifting.

An optical wear sensor measures friction sector thickness in a clutch assembly, eliminating time-consuming visual inspections and reducing maintenance errors.

Strap springs elastically expand to create clearance between reaction plates and friction surfaces, reducing heat and wear from limited horizontal displacement.

Nested radial oil passages reduce axial length and complexity by merging separate fluid paths into a compact clutch drum structure.

Two radially outer spring sets in series transfer torque through a cover plate to reduce the overall spring rate of the damper assembly.

Misaligning the starting clutch valve relative to the vehicle longitudinal axis decouples longitudinal vibrations, minimizing clutch judder during engagement.

Elastic holding device maintains pressing force without continuous actuation, reducing energy demand during shift processes.

A piston rod joint clip device secures the rod within a stop ring using spring arms and latching projections.

Nesting the planetary gear mechanism inside the hollow output member reduces volume and noise while switching rotation direction.

A centering plate supports the pump drive wheel in an automatic transmission to decouple coercive forces from the clutch assembly.

Dual oil grooves on friction plates discharge lubricating oil to separate clutch components and reduce idle drag torque.

A hydraulic clutch assembly uses a fluid coupling mechanism to transmit torque and manage heat.

Protective bellows clip into a segmented fastening ring using piston axial movement for secure release bearing attachment.

A hydraulic cylinder unit uses a bayonet interface and separate plate to enable flexible mounting options.

Merging the piston arm and transfer plate into a single component eliminates sequential movement delays, ensuring rapid clutch release response.

A hydraulic damping device uses a seesaw pressure transmitting member to attenuate vibration in clutch actuating systems.

A wet friction clutch coupling assembly uses a single pump to regulate fluid volume flow between actuation and cooling branches.

A trough routes fluid from a relief valve to bearings, maintaining lubrication when the clutch disengages.

A transmission mechanism uses a rod member with a flange part to actuate a clutch mechanism for drive force disconnection.

Axial securing hooks stabilize the drive member against longitudinal vibrations, enhancing vehicle comfort.

A compact pulse vacuum hub lock uses a multi-row clutch ring to reduce axial travel and rotational drag.

Carrier plate protrusion fits embossed cover indentation to prevent radial displacement and resist shearing forces.

Placing the PTU hydraulic pump downstream of the coupling mechanism eliminates auxiliary electric pumps and reduces complex line routing.

A motorcycle clutch uses a degressive spring and ramp arrangement to limit torque transmission during deceleration.

Radially extending channels induce axial force during rotation to disengage plates, reducing parasitic friction losses in vehicle transmissions.

Overlapping clutch engagement suppresses speed change shock in work vehicles by maintaining continuous power transmission.

Segmented friction and dog clutch assemblies reduce parasitic drag torque during low-load operation, improving fuel economy and durability.

Asymmetric radial feedthroughs stabilize clutch balance and drift speeds across hybrid operating modes.

Dynamic torque adjustment prevents engine stalling during idling while maintaining reliable wheel restriction on inclines.

A self-adjusting clutch actuator uses a positive locking transmission to convert length adjusting movements into relative component motion.

Radial drain passageways in a clutch backing plate divert hydraulic fluid away from disengaged packs to reduce spin losses and improve transmission efficiency.

A friction clutch uses a pressing member passage to feed lubricant from a storage chamber directly to sliding surfaces.

A clutch control device maintains a target engine-to-vehicle speed ratio using feedback mechanisms to manage engagement timing.

Integrating a pressure intensifier lowers hydraulic pressure from 40 bar to 5 bar, eliminating complex rotary seals in clutch release mechanisms.

Centrifugal rollers drive a piston into frictional engagement, eliminating complex fluid pressure actuation systems and mechanical inefficiencies.

Integrating the planet carrier and clutch housing reduces axial length and part count while maintaining torque control.

Prioritizing hydraulic oil supply to the first clutch enhances switching speed while suppressing drag torque increase.

Dual pumps segmented by displacement resolve the trade-off between high flow rate for quick actuation and high pressure for complete engagement.

One-way fluid passageways balance piston pressure to resolve overrun resistance and enable timely lockup clutch engagement.

An electromagnetic actuator pivots armature fingers within compartments to engage clutch teeth, eliminating high-pressure hydraulic systems.

A clutch assembly uses radial and axial plate separators to minimize drag torque during disengagement.

A lock-up device uses a hydraulic oil leading-out mechanism to drain fluid from the front cover and piston space.