Combustion Engines TRIZ Cases

A resonator system transmits pressure oscillations from the exhaust stream to amplify pulses at the turbine inlet.

A turbo air cooler system circulates natural gas through cooling tubes to reduce engine intake air temperature.

Triiron tetraoxide oxide film prevents red rust and resin deformation to maintain fastening force.

A heat exchanger uses a corridor to improve coolant liquid flow distribution across the core.

A variable compression ratio engine uses a secondary piston mechanism to adjust combustion chamber volume.

An oxyhydrogen burner system mixes HHO gas with natural gas to create a controlled flame inside exhaust pipes.

Targeted perforations enable a fixed exhaust pipe to absorb thermal expansion forces elastically, eliminating sliding seats and reducing noise.

A utility pedestal mounts a turbocharger while routing internal oil and coolant passages directly through the structure.

A crankless miniature engine uses a multi-helix spring to oscillate an alternator coil within a magnetic core for power generation.

A dual pump fluid conditioning system recirculates fuel through a primary filter at high flow rates to enhance particulate removal.

Segmented turbine diffuser attached to inner housing via struts enables single-unit rotor removal.

Magnesium-graphite alloys prevent blocking hydroxide layers during hydrolysis, sustaining continuous hydrogen production rates.

Fluidically isolated resonators suppress pressure pulses via tuning passages to modify engine sound emissions.

A speed sensor detects rotational speed via electric field perturbation and current modulation.

Balancing channel compensates hydraulic thrust on shutting head, reducing elastic force requirements and mechanical inertia for precise fuel injection.

Molded polyamide receiver strips and slots eliminate steel brackets, reducing noise and vibration while lowering assembly costs.

A turbine housing integrates a dimensionally stable cast contour component with molded sheet metal parts to maintain precise sealing gaps.

Rearward supercharger and air cleaner assembly eliminates intermediate piping to reduce component count and save engine space.

Segmented opposed pistons drive a linear generator, eliminating crankshafts to boost thermal efficiency and power density.

A side branch muffler uses elongated horizontal fluid passages to attenuate sound waves across a broader frequency range.

A bulge suppressing portion absorbs outer surface deformation during pin insertion, preventing drive ring fixation and ensuring precise assembly alignment.

A carbon fiber woven engine intake guard prevents foreign body intrusion while maintaining the aircraft profile and eliminating shrapnel hazards.

Separate gas and oil paths eliminate flow interference, enhancing drainage efficiency while maintaining manageable structural complexity.

A noncircular outer duct with lobes transitions to a circular shape downstream, enabling compact gas turbine engine integration.

Curved transitions between independent exhaust pipes and the mixing pipe increase suction by suppressing backflow.

A curved lever plate increases axial rigidity in variable nozzle turbochargers without adding thickness.

A scavenging two-stroke engine uses a crossover channel to deliver fuel mixture directly to the combustion chamber during start-up.

Segmented piston recess connections supply extra fuel via vacuum at low speeds to prevent stalling while maintaining excellent exhaust gas values.

A linear actuator drives a four-bar linkage to constrain the piston copy point along the cylinder axis.

A vehicle silencer uses a plastic inner resonator element within a metallic housing to attenuate charge air noise.

Integrating a centrifugal separator within the engine shaft resolves clogging and icing risks by separating oil particles via rotational motion.

A fuel valve uses fuel pressure to actuate a resiliently biased valve member, enabling precise pilot and main injection control.

Segmented adsorbing layers secured by grommets form a universal hydrocarbon trap that eliminates unique designs and reduces engineering costs.

Segmented filtration canister separates water from oil vapors, preventing condensate contamination of engine lubricant.

A nitrogen-free additive controls injector deposits while preventing seal degradation and metal pick-up.

Segmented Z-profile assembly fixes fin angles with a thermal molding mixture, resolving manufacturing precision issues for small engine superchargers.

A porous inner core reduces rotor weight and noise while maintaining mechanical integrity in supercharger applications.

A ram hammer uses atomized primary fuel and pilot oil ignition to create a homogeneous mixture.

A compressor cover integrates a breather gas port near the wheel leading edge to mechanically remove ice.

Backflow ports introduce cooled air to reduce outlet temperature and thermal stress, resolving trade-offs between efficiency and device complexity.

A crankshaft-integrated movable partition controls the transfer duct inlet, preventing fresh charge discharge through the exhaust during washing steps.

A monolithic heat exchanger body with twisting shapes and varying cross-sections enables fluid flow channels to change direction.

A dynamic piston crown adjusts pre-chamber volume to purge residual gases and improve combustion efficiency across varying engine loads.

A housing with separate passages and a separator removes oil mist from engine vented gases while providing an integrated fill port.

Aerodynamic airfoil nozzle disperses water flow through turbulence to prevent ice formation in engine ventilation systems.

An integrated PTC heater and heat radiating body prevent water freezing in engine breather tubes, eliminating the need for bulky external heating systems.

A hydraulic lubrication system uses a pressure-driven spool to dispense grease from an onboard reservoir.

A free-piston engine uses rigidly coupled pistons to separate intake and compression strokes from power and exhaust strokes.

Segmented elastic suction tubes maintain air passage profiles by isolating mixture tube deformation from the rigid air channel.