Combustion Engines TRIZ Cases

Rounded bolt transitions and a diagonal uniform gap cut stress concentration and arcing in turbomachine power connectors.

Positioning the supercharger housing outside the cylinder block boosts intake air pressure while preserving a compact off-road engine layout.

Independent Otto and Atkinson pistons improve fuel-to-electricity conversion, cut emissions, and enable mobile EV charging.

A side-by-side air-liquid intercooler and compressor layout cuts vehicle dimensions while preserving intake air cooling and aerodynamic channel design.

Placing air/liquid intercoolers beside the compressor cuts intake packaging size, enabling a tapered chassis without sacrificing engine operation.

A centered motor rotor and single cassette-supported roller bearings cut bearing complexity, wear, and electromagnetic loss in high-speed turbochargers.

Diverging transfer passages reshape pre-chamber ignition jets to improve gas exchange, combustion, and manufacturing simplicity.

A mass-tuned adapter and tubular member damp axial motion between the induction tube and turbo system, improving engine stability without turbo changes.

Laser-induced kerfs and recast material raise socket grip, making stuck sockets easier to pull off fastener heads by hand.

Laser-induced friction lines raise socket grip so users can pull it off a fastener by hand instead of dislodging it with a blunt tool.

A hand-held bending tool shortens the wastegate actuator arm to restore seal integrity without removing or disassembling the turbocharger.

A protrusion-and-spring quick connect secures bottling vent tubes without tools, cutting changeover downtime and installation errors.

A protrusion-and-spring vent tube lock enables tool-free changeovers in bottling machines while preventing loose tubes, damage, and shutdowns.

Press-fit cobalt-alloy sleeves add a thicker wear layer to air valve shafts, improving bushing durability in high-temperature service.

A central filling hole lets multiple piston cooling cavities be filled and sealed at one point, cutting closure steps and leakage risk.

A non-circular receiver and spring lock secure bottling vent tubes without tools, reducing changeover downtime and installation errors.

Pre-stored oil, an orifice, and a check valve buffer rapid plunger suction near bottom dead center to suppress cavitation and stabilize operation.

A preload spring and anti-rotation mechanism keep traction interfaces loaded despite part variation, reducing slip in driven turbocharger drives.

A spring-biased bayonet vent tube lock cuts bottling changeover time and prevents accidental tube removal during operation.

A tapered bush and elliptical spherical shaft abutment suppress tilt-driven exhaust leakage while simplifying sealing surface machining.

Thermally insulated concentric ducts cut engine package volume while limiting pressure drop and heat transfer in charged air routing.

Separate sheet metal retainers in sleeve openings simplify conduit connector assembly while preserving rigid, reliable locking for fluid and gas lines.

An orifice, bypass passage, and check valve stabilize plunger pump oil pressure near bottom dead center to suppress cavitation.

A flexible oil drain tube routes engine oil through a lower enclosure opening, making standby generator oil changes cleaner and easier.

Angled piston rod openings spaced along the stroke path cut communication hole stress while maintaining cooling and working oil flow.

Pressure-driven blow-by gas routing feeds oil mist to supercharger bearings while limiting dust and condensed water exposure.

A spring-biased bayonet receiver lets bottling vent tubes swap quickly without tools while preventing misalignment, damage, and tube loss.

A self-oscillating RF transformer amplifier locks to corona ignitor resonance, cutting tuning complexity and noise while sustaining ionization.

Carbon pistons, metal rings, and centrifugal-disc oiling keep an opposed-piston engine lubricated under high heat with hydrogen fuels.

Matched inner and outer closure surfaces cut wear and noise in a turbocharger exhaust guide while maintaining reliable movement.

A dual-heating pyrolysis reactor starts with electricity, then burns its own syngas to cut external energy use and adapt to local power access.

Blind blade shaft holes and an annular protrusion block exhaust gas leakage at nozzle vane supports, improving turbine efficiency.

Insulated hotspot igniters in the piston crown retain heat to ignite direct-injection fuel plumes and improve low-cetane fuel combustion.

Long transfer ports and a compact crankcase preserve high-speed cylinder filling, cutting emissions without the usual two-stroke power drop.

Inclined grooves in turbine annular members guide debris away from nozzle vane clearances, preserving smooth pivoting and flow control.

A split spindle and replaceable nozzle body cut sac volume, ease alignment, and reduce thermal-stress maintenance in large two-stroke engine fuel valves.

A hydrodynamic brake and feedback valve keep lean-burn natural gas engines above threshold load to stabilize combustion and RPM.

Localized catalyst, thermal barrier, and hydrogen barrier layers help lean piston combustion start cleanly while limiting embrittlement.

Zoned piston coatings combine thermal, hydrogen-barrier, and catalytic layers to improve lean-burn combustion and resist embrittlement.

Teflon-lined fuel lines, pre-bent hard lines, heating, and water separation let FDL diesel engines run biodiesel without fuel-system degradation.

A machined insert enlarges the supercharger air inlet path, cutting flow resistance and leakage while preserving housing integrity.

A movable sleeve valve covers cylinder ports as the piston passes, protecting sealing rings, cutting friction, and extending two-stroke engine life.

An auxiliary bearing backs up a deteriorated main bearing to limit rotary shaft runout, avoid contact, and keep the supercharger stable.

A lower-galvanic-potential sacrificial component corrodes first, protecting heat-exchanger joints and elements in corrosive environments.

Variable fuel quality can trigger knock; this case adjusts air-fuel temperature using methane number or hydrogen content before combustion.

A tapered driveshaft and flywheel pulley form a self-locking interface that limits vibration-driven friction and extends motorcycle supercharger life.

This heat exchanger enlarges the chamber over lateral passes to distribute coolant and prevent local boiling during air cooling.

This case uses a pivot frame, meshed crank gears, and a spring to turn wasted top-dead-center combustion force into crankshaft torque.

This case uses chemically resistant inserts in intake manifold sockets to preserve seal integrity and prevent coolant leaks.

This case uses static pressure measurements at two combustion-chamber locations to adjust fuel flow and reduce consumption.

Hydrogen-induced tumble flow promotes homogeneous mixing in an internal combustion engine for efficient, low-emission combustion.