Internal Combustion Piston Engines TRIZ Cases

A fuel injector heat shield uses flow guidance elements to direct cooling fluid through a gap between the nozzle body and the shield.

Electromagnetic induction rapidly heats the converter while electrohydrodynamic forces boost mass transfer, enabling fast light-off at cold start.

A liquid additive feeding path retains fluid in a heat conducting section while draining other portions to maintain thermal distribution.

Diagnoses vehicular catalyst deterioration levels to identify reusable components, preventing resource waste during vehicle disposal.

A ceramic particulate filter uses bimodal pore distribution to achieve high filtration efficiency and low pressure drop.

A burner heats exhaust gas to raise SCR catalyst temperature, enabling rapid NOx conversion after cold start.

A deformed wall channeling device directs supply gas flow into distinct zones on an internal combustion engine heat exchanger surface.

A fabric hose protects the suction lance from abrasion and ice, ensuring reliable thawing of liquid reducing agents.

Segmented upstream and downstream coating sections on partition walls reduce pressure loss while maintaining high exhaust purification performance.

A heat shield between the bearing housing and front nozzle ring prevents oil coking by blocking thermal radiation.

A gas valve design isolates the magnetic core from gaseous fuel using a non-magnetic sleeve to prevent short circuits.

Segmented bearing housings with partition walls prevent coolant leakage into lubricant spaces, resolving reliability risks in split-type turbochargers.

A DC power generator driven by a secondary engine eliminates AC-to-DC conversion hardware, reducing system complexity and fuel consumption.

A vehicle control system adjusts acceleration rates based on traffic conditions to optimize propulsion forces.

Resistive heating in an oxidation converter reduces cold start delays and minimizes heat conduction losses.

An inner stop between the adjusting ring and blade lever controls guide blade position.

Bleeding air from the compressor maintains pressure higher than the exhaust gas duct, preventing inflow and eliminating energy loss.

A pivoting vane turbocharger adjusts individual vane positions via link plates to balance exhaust gas flow rates across turbine volutes.

A multipoint distributed ignition system injects fuel jets into piston bowl cavities to create discrete ignition zones within the combustion chamber.

Embedded flue passageways in a TXES matrix enable efficient waste heat capture while reducing system complexity.

A dual-passage air and fuel conduit routes flow through a venturi section and a parallel bypass passage to reduce pressure loss at high engine loads.

Composite plastic shoes with PTFE additives replace expensive metal coatings to maintain lubricity while lowering manufacturing complexity.

Control unit monitors engine temperature and battery status to prevent safety risks during fuel saving operations.

Dimensioned distributor pipes enable adiabatic expansion to cool charge air, resolving the trade-off between cooling efficiency and structural complexity.

A honeycomb exhaust filter uses high-density communicating pores to support catalysts effectively.

A control unit adjusts the set pressure of a steam dump valve based on main steam pressure in a separator.

Supplying secondary air to an exhaust particulate filter during engine stop initiates oxidation of accumulated fine particles.

A complementary apparatus measures urea water level using ultrasonic and inductance units.

An external pump arrangement minimizes leakage risks by relocating submerged components above the tank surface.

A bypass valve in an air/water exchange module routes intake gases based on exchanger water temperature.

Electric coolant pump mounted on the crankcase supplies intercooler cooling water, resolving space occupation constraints in supercharged engine layouts.

Adjusting exhaust valve lift, phase, and duration improves internal EGR controllability across engine loads.

A deformable turbine housing seal maintains sealing force across varying thermal and mechanical loads.

Mixing gaseous natural gas with liquid fuel regulates pre-supply pressure, reducing energy waste from high-pressure pumping.

Flexible seals conform to irregular core shapes via elastic deformation, reducing energy loss from bypass flow without increasing manufacturing complexity.

Compressible mats fill gaps between catalyst substrates to ensure uniform packing and eliminate NOx conversion losses.

A pre-chamber with a second spark plug stabilizes combustion while enabling rapid catalytic system heating at low loads.

A car wash functional module manages engine shutdown and restart within an automatic transmission control unit.

Preheating lean gas mixtures to 120-150°C resolves ignitability issues for gases with less than 20% methane content.

A piston bowl with a central elevation directs flame jets from a pre-chamber into the main clearance volume to accelerate ignition.

A tapered charge air line reduces transverse force at the downstream end of an internal combustion engine.

Reversing exhaust gas recirculation flow during engine shutdown regenerates the NOx trap, preventing oil dilution and reducing carbon dioxide emissions.

A rotary turbine engine uses a movable partition wall to adjust combustion chamber volume and shape during operation.

Inserting the heat transfer body after plastic shrinkage prevents casing cracks and chemical contact, ensuring long-term reliability.

A parent controller manages multiple child controllers to coordinate reductant insertion across engine exhaust banks.

Segmented exhaust aftertreatment device protects the reduction catalyst from gravel damage while maintaining purification efficiency.

Segmented injectors target a common ignition zone to eliminate hot spots and knocking while maintaining combustion efficiency.

A vehicle control device adjusts clutch torque increasing rates during deceleration to crank the engine and restore brake booster vacuum.

Segmented axial passages reduce tangential stresses at the inner wall while maintaining rotor-shaft stability.