Fuel Supply Regulation TRIZ Cases

Dual air and gas passages with solenoid valve switching widen burner turn-down ratio while improving combustion efficiency and durability.

A dual gas passage with shape memory alloy actuation maintains oven temperature, reduces cycling, and avoids valve-igniter mismatch failures.

A pressure-triggered decoupling mechanism limits pilot valve opening force and keeps the main burner closed during ignition.

Bimetal discs outside the gas path offset ambient heat effects on the bellows, improving gas regulator temperature accuracy and retrofit ease.

Waste-heat fuel preheating and controlled atomization improve combustion efficiency while cutting energy use and carbon monoxide emissions.

A flanged threaded sleeve keeps a gas regulating valve attached and torque-retained after screw breakage, helping prevent cooking appliance leaks.

Electronic control lets a single gas valve add a temporary boost mode for faster cooking while limiting thermal overload in gas appliances.

A metal plate between the plastic shaft and rod reduces abrasion, preserves gas tap accuracy, and simplifies cooking device assembly.

Two-speed combustion air and staged gas valves create multiple heat stages while holding a constant fuel-air mixture for efficient, safer heating.

Elastic contact areas in the coil reel replace soldering to secure phase and ground connections, simplifying assembly and reducing gas leakage risk.

Discrete detent positions and multiple on-off valves give gas burners reproducible flow settings without relying on visual flame assessment.

A spring member loops around the gas rail and valve body to replace screws, speeding gas valve assembly while improving positioning and leak safety.

Electrochemical oxygen sensing replaces costly NDIR monitoring, enabling boiler combustion feedback control for better water-heating efficiency.

A monobloc valve body integrates shutters and solenoid valves to simplify gas oven assembly while maintaining reliable flow control.

Separate gas and air passages with linked opening control stabilize turbo-fan delivery, improving low-load combustion and heating precision.

A venturi, damper valve, and dual gas valves let one blower modulate stable heat input across wide demand swings with less cycling.

By tracking flame signal changes over time, this grill shutoff circuit avoids sensor drift errors and closes the gas valve when ignition fails.

Pulse-and-pause pump driving cuts heater power draw while maintaining fuel pressure for nebulization and longer battery autonomy.

A gas cooker checks vessel size across cooking zones, then recommends the best burner and flame diameter for efficient, even heating.

A joint between the knob shaft and valve shaft absorbs assembly misalignment, stabilizes gas control, and supports accurate Hall sensing.

Compression contact areas on the coil reel replace soldering, improving electrical connection reliability and lowering gas leakage risk.

Dynamic burner high-limit adjustment matches hydronic and steam heating demand to cut fuel waste without fixed setpoint inefficiency.

Multi-stage valve and throttle control improves dual-burner gas flow precision, fast line filling, and stable ignition without flame loss.

By tracking lockout device state changes instead of separate burner sensors, this cooktop control prevents inadvertent activation with less circuitry.

A solenoid valve pulses gas flow in short cycles to cut fireplace fuel use while keeping flame appearance steady and imperceptible.

A side-mounted rotary encoder for gas range valves simplifies assembly and replacement while preserving precise low-flow position sensing.

A controller ramps burner firing rate from an initial level using thermostat signals and cycle history to balance heating demand, comfort, and energy use.

By reducing water flow when outlet temperature is far below the setpoint, this case cuts cold-start heating time and saves water and gas.

Temperature-based recirculation control cuts hot water delay and fluctuation while reducing energy waste and scale formation.

A monolithic premix manifold cuts air leakage at burner connections, keeps the air-fuel ratio stable, and lowers furnace NOx emissions.

Snap-fit engagement to a tap stem groove replaces springs and circlips, cutting assembly cost while keeping secure electrical switching.

Pressure switch feedback lets a furnace self-calibrate combustion blower speed, cutting setup time while maintaining safe firing-rate control.

On-demand recirculation pre-heats water lines to cut delivery delay and temperature swings while tailoring safe outlet temperature to the user.

Pressure sensing and electronic valve control stabilize burner heat output, while flame detection shuts off gas for safer cooking.

A selector valve and factory-plumbed burner layout let one unvented gas heater run on natural gas or propane without regulator or orifice changes.

A side-accessible restrictor plate lets gas valve units be retuned for different burners, gas types, and pressures without disassembling gas lines.

A common drive links combustion air and heating medium fans, cutting power use and noise while keeping airflow and combustion ratio in range.

Independent burner chambers and airflow paths enable 25:1 heat turndown with reliable flame sensing and simpler burner plumbing.

Flow-based cascade control predicts heat demand, cuts water heater cycling, and keeps flue temperatures above condensation points.

A shared mechanical actuator replaces multiple electromagnets to deliver reproducible multi-stage burner gas flow with simpler assembly.

A slide-in channel lets the simmer potentiometer engage the valve stem without disassembly, cutting service time and avoiding leak testing.

By inferring combustion air flow from inducer fan speed, this furnace control keeps the gas-air ratio stable without extra sensors.

A downstream disturber boosts venturi air-fuel mixing in HVAC furnaces, improving velocity uniformity, combustion efficiency, and emissions.

A modulation-percentage control scheme adjusts inducer motor RPM smoothly across heating capacities without pressure transducers.

A single boiler tapping combines low water cutoff and temperature sensing, avoiding extra openings while preventing unsafe run-away heating.

Temperature thresholds let the controller cycle the compressor and override flame sensing, reducing manual burner adjustment.

Slots draw combustion air over the premix manifold to cool the heat exchanger inlet and improve furnace heat distribution.

Adaptive air-fuel and water-flow control maintains combustion efficiency as propane-butane composition changes during gas use.

When low firing rates extinguish the burner flame, the controller reignites and holds output above the loss point to maintain steady heat.