Combustion Engines TRIZ Cases

A mixing valve uses a rigid coupling rod to pivot intake and exhaust flaps for precise gas recirculation control.

Segmented X-tube housing with a permeable bottom partition equalizes pressure and sound while minimizing flow resistance.

A solenoid valve sleeve body uses a defined air gap between the armature and the magnetically conductive sleeve to prevent magnetic sticking.

A carburetor venturi features a bulging portion that allows choke and throttle valves to oppose closely in the fully open state.

A movable flap routes fluid between ducts using compressor pressure torque to switch positions automatically.

Segmented axial and radial through-holes in the anchor reduce fluid resistance, shortening valve closing lag time.

A turbocharger bypass pipe directs exhaust gases around the turbine to conserve thermal energy during cold engine starting.

A fluid line coupling uses a radially adjustable securing clip to mechanically join components without tools.

Segmented oil slinger and baffles limit lubricant volume on gears to reduce power loss from excessive film shearing.

A three-stage compression system uses an intermediate cylinder to reduce total compression work and component pressure demands.

Segmented drive systems isolate the fuel pump and supercharger loads to prevent interference with variable valve responsiveness.

A piston crown with a reentrant combustion bowl promotes turbulence and enhances flame speed.

Segmenting the turbine throat with a flow divider prevents short circuiting, restoring exhaust back pressure and EGR performance.

Auxiliary fuel channel supplies rotationally-precise metered fuel to combustion chamber, preventing uncombusted fuel scavenging and reducing emissions.

An ejector generates negative pressure in a bypass passage to return blowby gas while a check valve prevents air backflow during supercharger non-operation.

Zero-crossing detection controls the resonant frequency of an HF igniter circuit, eliminating phase loop deviations and reducing switching losses.

A heat shielding member inside the gas chamber shields radiated heat from cylinder walls.

A dynamic switching element adjusts the overflow channel state based on engine speed to prevent unburned fuel transfer into the crankcase.

An integrated gasket leaf valve manages one-way air flow to reduce part count and manufacturing costs in stratified scavenging engines.

Segmented laser ignition housing isolates optical elements from mechanical tightening torque to maintain precise beam alignment.

A rich-lean burner uses a perforated protruding body to increase flame surface area and ensure reliable ignition.

Spectroscopic analysis feeds a chemometric model that adjusts blendstock ratios, ensuring finished gasoline meets specifications despite feedstock variations.

Radially spaced weld surfaces on plastic air intake parts improve sealing reliability and force transmission through friction welding segmentation.

An oil guide wall directs displaced fluid toward the deep bottom portion, resolving inefficient return from shallow areas and maintaining strainer stability.

Segmented nozzle vanes create asymmetric flow patterns in a symmetric housing to balance exhaust backpressure and turbine output without complex designs.

An electric heating device raises injection device temperature to oxidize coking residues via a catalytic coating, solving low-load cleaning challenges.

An austenitic stainless steel alloy with balanced chromium and nickel content stabilizes the microstructure for high-temperature turbine applications.

An intermediary component absorbs vibration and blocks heat transfer between the supercharging machine and engine body.

A crankcase separator wall integrates an ejector pump to actively suction oil fractions from blow-by gas streams.

Radial slits in a thermoplastic distributor plate create swirling fluid flow, preventing media settlement and valve resecuring difficulties.

Inner envelope features an impermeable lower zone to prevent pressure imbalance and mechanical stress during flight.

Parallel exhaust control valve orientation reduces resistance from valve thickness, improving gas flow efficiency.

Radial spring actuation displaces the valve element axially, resolving the contradiction between improved response characteristic and compact axial dimension.

A fluid virtual piston system adjusts engine compression ratios dynamically without mechanical complexity.

A fuel injection valve nozzle body features an injection hole with a flat perpendicular cross section that maintains consistent area ratios from inlet to outlet.

Inert gas flow prevents deposit formation on the combustion chamber window, reducing laser power requirements and extending service life.

Dynamic expander piston control eliminates parasitic losses during low load while extracting exhaust energy at high load.

Hydrocarbyl-substituted succinic acid additives with controlled molecular weight distributions reduce injector sticking in high-pressure common rail systems.