Machines/Engines TRIZ Cases

Siphon ventilation duct prevents hydraulic fluid leakage during idle periods by maintaining negative pressure and compensating for medium shrinkage.

Non-uniform air gap contour and flooded chamber volume absorb cavitation bubble collapse energy, extending solenoid valve service life.

A downhole turbine mechanically coupled to a generator converts falling water kinetic energy into electricity, recovering power from disposal wells.

A Hall current plasma source uses a center-mounted cathode to ionize gas for spacecraft propulsion.

Routing scavenged leakage fuel directly to the tank eliminates recirculation heating circuits that cause overheating and reduced service life.

An air intake hose integrates blow and injection molding portions using protrusions in a single mold step to eliminate weak clamped joints.

Integrated drainage holes and collection grooves in the valve guide prevent liquid leakage into air passages, reducing coking and wear.

Modular wind turbine blade sections with non-ideal twist use flow altering devices to adjust aerodynamic properties.

Decreasing fin camber ratio suppresses crossflows to stabilize longitudinal vortices and improve aerodynamic force.

A frame member penetrates an air cleaner box to guide outside air through dedicated through holes into the intake passage.

A fuel injector pressure sensor sits in a low-pressure zone while a transmission pin conveys force from the high-pressure region.

Extracting the spring from high temperature steam prevents relaxation, while shaft guidance reduces wear and extends maintenance intervals.

Compressed trapezoidal sealing body absorbs thermal stress and reduces noise by adapting its cross-section between valve components.

Integrating a metal air filter housing with an oil tank reduces vehicle weight and assembly labor by removing redundant mounting hardware.

Inclined passage drains water from blowby gas to prevent throttle valve freezing and enable accessible impurity maintenance.

An integrated ion thruster merges the propellant reservoir and plasma chamber to resolve the contradiction between control capability and device size.

Polyisobutylene additive reduces centrifuge deposit formation by enhancing water shedding capabilities in high TBN diesel lubricants.

Gold-plated conductive segments prevent sulfur corrosion in fuel tanks while minimizing material costs.

A plasma accelerator uses a single active cathode and control grid to modulate thrust.

AC ignition coil applies periodic voltage to primary coil, eliminating extended dwell time while maintaining reliable spark generation during cold starting.

Segmented piston stages prevent evaporative emissions during diurnal cycles while maintaining low pump energy consumption.

A vented back-up plate traps a check seal while fluidly connecting the internal crevice to a drain, equalizing pressure to prevent cavitation erosion damage.

A method extracts harmonic responses from offshore wind turbines by processing acceleration signals through Fourier transforms and deep generative models.

Lenticular lens assembly refracts light from indicator flags to enable wide viewing angles.

Continuous analog sensing maintains precise fill level in the feeding pipe, reducing tablet weight variation by 66%.

Position detection module samples excitation and feedback signals to calculate device displacement, eliminating phase differences between LVDT signals.

RF plasma ignition replaces mechanical spark plugs with electromagnetic fields to resolve low combustion efficiency at high pressures.

A hydraulic control valve adjusts its opening degree based on detected oil pressure to manage fluid flow in variable valve timing mechanisms.

Adaptive frequency scanning minimizes jammer interference on resonance curves, ensuring accurate coverage determination in noisy industrial environments.

Baffled condensate tray in the intake manifold collects PCV moisture via gravity, preventing cylinder misfires and combustion degradation.

Monitoring SMA actuator current and resistance enables detection of malfunctions like open circuits or blockages without adding external sensors.

A determination device estimates relative humidity at varying temperatures to detect sensor malfunctions in automotive intake systems.

A capacitive fuel gaging system uses a probe-mounted diode to isolate contamination resistance from wire resistance.

Segmented duct-side mounting pieces enable resonator turning during attachment, resolving interference that compromises air tightness and workability.

An adjustable counterweight changes the horizontal angle of a support member, reducing safety risks during heavy shaft maintenance.

Multiple conductors within a tube provide baseline capacitance values to compensate for dielectric changes, eliminating time-consuming calibration.

Relocating electronic sensors to the protected hub area minimizes lightning vulnerability while maintaining fast measurement resolution.

Intake chamber geometry directs cavitation away from the sealing zone, preventing wear and erosion while maintaining fluid-tight engagement.

A crankcase ventilation disconnect fitting uses a spring-biased plunger to seal the conduit when the PCV line is removed.

Bearing arrangement constrains movement along a third axis to prevent mechanical interference, enabling precise rotational control for optical systems.

A perforated structure mechanically retains an air distributor cover while ensuring gas-tightness between engine cylinders.

A working method forms a tapered orifice inner wall by pressing the downstream end surface with a punch to flow material into the hole.

A digital optical fuel level probe uses vertically mounted emitter and receiver pairs on a circuit board to detect liquid presence.

Diversion arrays and collimation grooves redirect sensing waves to eliminate multiple reflections and diffraction artifacts without costly edge machining.

Offset rows in turbine farms redirect diverted flows through subsequent units, resolving grid array inefficiencies.