Fluid Couplings TRIZ Cases
- Auto Bleed Valve Circuit for Transient Bubble Filtering
LED air sensing with comparator and integrator delay filters transient bubbles before solenoid venting, improving bleed valve reliability.
- Modular HPI Flushing Head With Grease Pathways for Multi-Rod Drilling
A modular HPI flushing head uses grease pathways, durable seals, and interchangeable parts to cut maintenance and fit multiple drill rod sizes.
- Hydraulic Grapple Flow Control to Cut Relief Valve Energy Loss
Pump pressure sensing cuts oil flow to the grapple cylinder when load rises, reducing relief valve discharge and hydraulic energy waste.
- Fluid Coupling Latch Geometry for Rotation-Resistant Locking
A movable female latch seats a protrusion in the male groove to prevent pressurized rotational disconnects while keeping coupling quick.
- Hydraulic Axial Machine Feedback Assembly for Low-Hysteresis Control
A modular spool and feedback piston assembly cuts friction and hysteresis while improving swashplate neutral return in hydraulic axial machines.
- Positive Displacement Pump Unloading Plate for Parasitic Loss Reduction
A spring-biased unloading plate opens pump chamber volume under pilot pressure to cut parasitic losses and avoid extra valves or clutches.
- Modular Backup Hydraulic Supply for BOP Component Bypass
ROV-connected modular valve blocks and shuttle valves bypass failed BOP control components to maintain hydraulic function and avoid stack retrievals.
- Hydraulic Pump Control Path for Smooth Steering Turn-Back
A loading valve spool groove sustains pilot pressure during steering return, preventing pump drop-off and momentary heavy steering.
- Asymmetric Linear Actuator With Hydraulic Dissipation and High-Force Locking
A dual-motor hydraulic actuator separates low-force generation from high-force dissipation to stay compact while enabling controllable locking.
- eLSD Clutch Pressure Control Under Temperature and Viscosity Changes
Closed-loop PID, sliding mode, and LQR control stabilize eLSD clutch pressure despite temperature-driven viscosity changes and nonlinearities.
- Vehicle Clutch Torque Refill Control for Oil Temperature Stability
Periodic pressure-chamber oil refilling during micro-slip stabilizes clutch torque transfer despite hydraulic actuator temperature changes.
- Torque Converter Lock-Up Stopper Layout for Wear-Resistant Engagement
An axial stopper layout in a torque converter lock-up device reduces engaging load, secures overlap margin, and limits abrasion.
- Positive Displacement Pump Unloading Plate for Parasitic Loss Reduction
A movable unloading plate opens the pump chamber under pilot pressure, cutting parasitic fluid losses without added valves or clutches.
- Sealed Torque Converter Piston for Faster Lockup and Clutch Lubrication
One-way seals and a piston orifice speed torque converter lockup, stabilize slip control, and keep the clutch lubricated to limit heat.
- Axial Piston Pump Layout With Detachable Servo Unit
A detachable servo unit and compact port block give hydrostatic transmissions more layout freedom while lowering pump cost and complexity.
- Female Fluid Coupling Latch for Pressurized Rotational Locking
A movable female latch seats into a male groove to prevent accidental disconnect during pressurized rotation while keeping coupling easy.
- Meterless Hydraulic System With Parallel Variable-Area Actuators
A meterless hydraulic circuit connects a pump to parallel actuators using switching valves for independent control.
- Hybrid Excavator Power Control for Battery Protection
Dynamic power control prevents battery over-discharge by limiting total system output based on charging state.
- Torque Converter Stall Temperature Control via Slip Speed Torque Limiting
A torque converter control system limits engine output torque based on calculated slip speed between the pump and turbine.
- Pressure-Sensitive Barrier for Wheelchair Lift Safety
Integrated pressure sensing in the barrier detects occupancy, replacing bulky sensors to eliminate maintenance while ensuring safe operation.