Combustion Engines TRIZ Cases

Remote chamber ignition system with high-voltage electrodes pretreats combustible charge gas to enhance flame speed and temperature.

A cam-driven rotary-valve dual-piston engine replaces heavy crankshafts with sinusoidal cam tracks to drive counter-rotating pistons.

A reformed-fuel gas turbine system uses dielectric detection to adjust hydrothermal reaction conditions for consistent fuel quality.

Preliminary valve closure prevents combustion medium backflow, reducing compression energy losses.

Inverted breather passage uses gravity to block oil entry into the air intake, preventing suction damage during vertical operation.

A low drag piston features a tapered skirt with an inwardly concave central portion to reduce mechanical friction and viscous drag.

An electrolytic power plant recycles oxygen from water splitting to fuel its own combustion chamber and desulfurization process.

Precooling tubes reduce thermal stress on EGR coolers by exchanging heat with coolant before gases reach the core.

An internal gathering container within a diesel fuel tank separates and accumulates water using density stratification, reducing cold weather sensitivity.

A piston crown and skirt separated by a heat insulation gap with a protective hood on the piston pin prevent oil coking.

A partition wall creates distinct flow paths to prevent fuel blowback contamination of the cleaner element during transient engine operation.

An EPDM rubber buffer mounted on a variable air intake valve absorbs impact energy during rapid closure, preventing hitting sound generated by magnetic force.

An inert gas buffer space absorbs pressure variations in the exhaust system, preventing backflow and stabilizing vacuum pump operation.

Fuel deactivation enables internal air cooling, resolving overheating issues during low-speed motorcycle operation.

A movable fulcrum on a piston lever reduces lateral thrust and wear by adjusting geometry during operation.

A centrifugal compressor test bench uses a turbine back disk temperature simulator to reproduce internal flow heat transfer characteristics.

Centrifugal force separates oil and air in the crankcase, reducing pressure buildup that degrades engine performance.

A helical base support connects to the piston crown to distribute loads across the cylinder wall.

Segmented valve members adapt to pressure differentials to prevent backflow during turbo boost while maintaining engine efficiency.

Axial guide vanes redirect exhaust gas radially outward within the turbine housing gap to suppress turbulence and minimize heat transfer losses.

Autofrettage apparatus applies high pressure fluid to induce plastic deformation on prechamber element inner surfaces.

Applying thermal barrier coatings to opposed-piston engine manifolds reduces heat rejection, improving fuel efficiency and after-treatment light-off.

Side branch silencers cancel noise while a heater reduces air density to minimize pressure loss in the intake system.

Layered bellows materials reduce vibration transfer through the intercooler pipe, improving vehicle NVH performance.

Collar connector unifies irrigation and aspiration lines to prevent leaks while allowing flexible handpiece configurations.

A crankcase ventilation system uses a PCV bypass and relief valve to maintain pressure, preventing seal failure and oil degradation under boosted conditions.

Annular rib on nozzle ring face constrains minimum inlet width, preventing excessive cylinder pressures during engine braking.

An outlet resonator assembly with perforated guides dampens sound and vibration at the supercharger discharge.

Anti-friction ring rotates disc member to prevent thermal sticking and ensure reliable reset after overspeed shutdown.

A breather apparatus uses a two-step chamber configuration to separate oil from blow-by gas in combustion engines.

A pivotable choke valve with a flattened inlet opening simultaneously controls air and fuel mixture passages in a two-stroke engine.

Segmenting the pulley from the clutch components reduces rotational inertia and bearing stress while maintaining torque capacity.

Connecting the fluid reservoir to the engine intake pressurizes the system while derating power prevents over-pressurization damage.

A variable speed supercharger uses a planetary friction drive to adjust impeller speed via an electric machine for optimal boost control.

A multi-hole low-pressure nozzle forms a common jet with controlled inclination to prevent cylinder wall wetting and reduce hydrocarbon emissions.

Flexible blades with openings restrict particle flow in GDi fuel pump inlet valves, preventing blockages from metallic debris accumulation.

Integrates cooling and filtration in one unit to reduce space while maintaining lubricant quality.

Dynamic attachment device shifts rotary shafts to vary engine distribution and compression ratio.

A multi-orifice fuel injector creates high-velocity jets that mix diesel with compressed charge air to form a homogeneous mixture.

Chamfered bearing sleeve pins constrain turbocharger shaft axial position, reducing tolerance chain and manufacturing precision requirements.

A modular silencer design uses standardized interfaces to connect turbocharger and resonator modules for flexible acoustic configuration.

Replacing pneumatic systems with a two-phase transverse flux motor eliminates leak risks and improves positioning precision.

A multistage turbocompressor aligns the driving pinion and greater wheel in a single horizontal plane to create a compact integrated gear assembly.

A stepped spacer decouples vane rings from thermal warpage in turbochargers.

A monoglyceride friction modifier disperses condensed water in engine oil to form a stable emulsion.

Separate control chambers and pressure damping absorb liquid fuel pressure waves to prevent leakage into the gaseous system.

A two-stroke engine applies General Cycle thermodynamics with specific compression and Atkinson ratios to generate high-efficiency electricity.

A vehicle system uses a controlled liquid flow to cool the air intake duct.

A piston flat movable surface seals the clearance volume during exhaust strokes, removing residual fumes and maximizing combustion efficiency.

Metal adapter and sleeve assembly replaces rubber grommets to maintain joint integrity under compressed air temperatures above 300 degrees.