Mechanical Actuated Clutches TRIZ Cases

A hydraulic clutch control piston uses a valve member actuated by differential pressure forces to manage fluid circulation between variable volume chambers.

A flange-supported annular hydraulic cylinder enables dry-type and wet-type transmission conversion on common production lines.

Extending the clutch rotational part radially beyond the rotor enables convection cooling to reduce operating temperatures and torque losses.

Segmented rotating and sliding assemblies compress an elastic member to resolve the trade-off between compact structure size and reliable friction performance.

Integrating range shift and clutch control into one actuator reduces device complexity while maintaining reliable torque distribution across drive modes.

Vortex turning introduces arcuate grooves to reduce drag torque while maintaining wear resistance.

A controller measures the maximum movable stroke of a sleeve gear to dynamically set its neutral position for accurate clutch engagement.

Activation load simulator applies increasing resistance to clutch pedal depression, restoring essential squeeze feedback for non-synchronized transmissions.

A gearbox synchronizer uses a sliding sleeve ventilation contour to interact with an elastic actuating element and release axial loading on the synchronizing ring.

Radial slits in the clutch cage allow elastic expansion for consistent drag torque while simplifying manufacturing and reducing costs.

Segmented clutch inners isolate left and right piston pressures via a central boss and thrust bearing, preventing operational interference between clutches.

A single hydraulic circuit with an isolation valve enables smooth mode switching, reducing mechanical failure risk from complex multi-circuit designs.

Electromagnet engages clutch teeth to prevent rotation, eliminating complex linkages and solenoids that increase device complexity.

A clutch unit uses a C-shaped band plate spring and polybutylene terephthalate friction ring to prevent noise and maintain fastening allowance.

Coaxial protrusions replace separate spindles and multiple welding points in vehicle pump assemblies, reducing thermal deformation and manufacturing costs.

A transmission control system uses a synchronizing clutch element to manage gear engagement during rolling garage shifts.

A trapezoidal index lobe engages a pressure piece recess to press the synchronizing ring against the hub.

Extraction of clutch housing from bell frees radial space, increasing torque capacity and fuel efficiency.

Staging pressure commands reduce hydraulic fluid demand during coast downshifts by pre-filling clutches prior to engagement.

Convex end faces on sliding sleeve and clutch body teeth reduce material stress while maintaining reliable meshing in compact manual transmissions.

Inverting the assembly sequence allows preliminary positioning of components before high gear installation, resolving complex internal arrangement issues.

Eutectic solder melts at a threshold temperature to release a disconnect clutch in an integrated drive generator.

A concentric clutch disengaging device uses a cantilever arm to support hydraulic fluid lines against torque loads.

Predictive clutch actuation calculates maximum transmissible torque to minimize fuel consumption and wear from excessive power transfer.

A slip heat release calculator monitors hydraulic oil pressure and shaft speed to estimate clutch wear.

A shift control unit coordinates variator and sub-transmission speed ratios to achieve target transmission ratios with specified response times.

A series friction clutch protects one-way clutches from torque spikes by allowing rotation when load exceeds holding limits.

Consolidating outer disk carriers into a single unit reduces construction complexity and manufacturing costs while simplifying cooling oil ducts.

A clutch control apparatus applies intermittent hydraulic pressure via a solenoid valve to prepare the transmission for engagement.

Wave springs limit axial movement and absorb excessive centrifugal force to enable manual override at high engine speeds.

Cam mechanism reduces energy consumption by maintaining engagement through mechanical self-locking rather than continuous current.

Segmented sealing lips on inner and outer races limit particle intrusion while reducing friction wear.

Local projection welding joins clutch and transmitter disks, reducing manufacturing costs while maintaining torque transmission reliability.

A hammer drill clutch mechanism uses an elastic element to urge separate clutches apart for reliable mode selection.

A self-hold electromagnetic clutch uses permanent magnets with specific Curie temperatures to manage power transmission and release states.

A dual clutch valve control unit manages hydraulic pressure distribution to connect and disconnect clutches via pistons.

Hydraulic fluid circulation through flow ducts resolves grease sealing challenges and heat dissipation limits in planetary roller screw drives.

An upstream output control valve blocks hydraulic flow when the switching valve fails, preventing traction motor overspeed.

A power ON/OFF determination unit detects input torque polarity to the sub-transmission mechanism in a continuously variable transmission.

Friction engagement portions on the support member prevent premature rotation during drive start, reducing impact noise between components.

Radial nesting of clutch control mechanisms reduces axial size and inertial mass while enhancing power transmission responsiveness.