Valve Drives TRIZ Cases

See how a closed-cycle system with molten salt and counter-flow heat exchangers stores mechanic

A closed-loop working fluid cycle uses molten salt, water, and counter-flow heat exchangers to store and recover energy with lower capital cost.

A closed working-fluid cycle stores mechanical energy using molten salt and water heat reservoirs, improving efficiency while avoiding hydropumping limits.

An asymmetric cam lift face extends the down section to widen valve closing timing control while reducing seating impact and noise.

A retaining disc and captivation screws let engine components be removed without disassembling the flywheel housing or chain assemblies.

A conical torsion spring fits within the pulley sweep to prevent entanglement, enable automated assembly, and damp sudden belt tension spikes.

A retaining disc and captivation screws keep the sprocket in the cylinder block, letting fuel pumps or compressors be removed without chain disassembly.

A vent path with one-way hydraulic flow blocks air backflow to the phaser, reducing rotor oscillation during torque reversals.

Opposing transfer elements balance camshaft loads to cut transverse force, reducing bearing wear, vibration, and NVH in vehicle engines.

An obround sprocket profile and preset phase cut timing error below 1.5° while reducing belt tension fluctuation and vibration.

Automated jig-based fastening clamps, rotates, and secures sprockets and the auto tensioner to raise engine assembly speed and consistency.

A plate-and-bracket mount lets an idler gear sit vertically above the cylinder block while improving fastener access, alignment, and oil drainage.

A retaining disc and captivation screws hold the sprocket in the cylinder block, allowing fuel pump or air compressor removal without chain disassembly.

A loose-fit pivot holding part lets the chain guide assembly integrate sprockets and guides on one frame, cutting parts and assembly time.

A bracket-and-plate mount lets an idler gear sit vertically on the cylinder head, improving fastener access, oil drainage, and lash adjustment.

A pass-through timing pin and cam bushing simplify crankshaft-camshaft static timing while reducing tooling, tolerance demands, and assembly effort.

A nested damping carrier adds frictional damping inside a compact timing belt tensioner while preventing torsion spring entanglement during assembly.

Two opposing transfer elements balance camshaft loads to cut bearing wear, noise, vibration, and harshness in force-driven output devices.

A polygon-shaped elastomer track matches tooth count to equalize chain overlap, cutting noise, wear, and impact damage in engine toothed wheels.

A foot-pedal water control setup pairs a bypass flowmeter and diversion valve to detect micro leaks without slowing refill flow.

A dual-profile cam and hydraulic tappet enable internal EGR and Miller-like intake timing to cut NOx and fuel consumption without external circuits.

Supplemental oil flow and venting purge air from lost motion valvetrain circuits, improving response consistency and low-speed actuation.

Relocating the oil control valve below the frame improves engine mountability, cuts vibration transfer, and reduces hydraulic pressure loss.

A shared cam, rocker arm, and actuator operate multiple decompression valves, cutting opposed-piston engine size and mechanism complexity.

An engine control unit and bidirectional servo motor vary intake valve timing, replacing cam-driven actuation to reduce mechanical and pumping losses.