Fluid Actuated Clutches TRIZ Cases

Separate scraper and sealing rings on a ring piston prevent particle ingress and leakage, reducing production complexity while enhancing fatigue strength.

A limited slip differential clutch pack uses captive and floating disks with aligned lubrication apertures to circulate fluid during rotation.

A power transfer unit uses a non-rotating piston to disconnect the secondary auxiliary drive system.

Inverting the connector assembly allows rapid clutch system maintenance by removing the female member from the male part, eliminating special tool requirements.

An expandable vessel in the pressure chamber prevents fluid leakage and maintains transmission efficiency.

Integrating a helical channel with an elastic volume sensor reduces pressure pulsations without adding structural complexity or space.

A hydraulic power pack actuator modulates pressure to a piston assembly, enabling automatic slipping modes and reducing manual transmission stalling.

Gerotor pump generates fluid pressure for clutch engagement independent of input shaft rotation speed, reducing response time to under 50 milliseconds.

A hydrokinetic torque coupling device uses a turbine-piston lockup clutch to mechanically couple driving and driven shafts.

Hydraulic pressure storage circuits retain fluid in the clutch cavity during engine shutdown, eliminating transmission operation delay upon restart.

A hydrokinetic torque coupling device uses a segmented connecting member to axially displace a turbine-piston clutch plate for mechanical lock-up engagement.

Piston oil reservoir uses variable diameter barriers to distribute lubricating oil based on clutch engagement states.

Motor-driven oil pumps circulate clutch fluid to raise temperatures, eliminating vibration noises and durability loss from slip.

A drive assembly reservoir stores lubricant via rotary motion while a clutch-linked valve directs flow, reducing drag torque during disengagement.

Dual-end servo pin support reduces wear and binding from eccentric loading.

A single pressure sensor connects to multiple fluid lines via a switching valve, reducing device complexity and cost while maintaining measurement precision.

A hydraulic circuit directs fluid flow to individual clutch cooling systems using a volume control valve, resolving shared medium inefficiencies.

Passive reservoir delivers splashed oil axially along the primary shaft to lubricate the clutch friction pack, eliminating mechanical pump load on the engine.

Replacing wire actuators with a hydraulic rack and pinion system stabilizes clutch operability against elongation.

A reservoir tank features a serpentine flow path on the top plate inner wall to break up air bubbles in hydraulic fluid.

A rotary coupling actuator moves a lubrication valve to drain hydraulic fluid from the clutch pack.

A selectable one-way clutch uses a dual-level oil passage with a closure to control fluid discharge and maintain lubrication.

Piston protrusions engage drum splines to inhibit rotation, reducing friction material wear and separator plate overheating.

Axial and radial grooves distribute fluid across clutch plates to minimize spin losses caused by uneven flow during disengagement.

A hydraulic control system for dual wet clutches uses annular pistons to manage engagement and disengagement.

Removing synchronizer spring means reduces shifting force level and drag torques while maintaining functionality.

Axial stop limits separator plate movement in clutch assembly, resolving inconsistent liftoff control caused by leaf spring tolerance variations.