Mechanical Apparatus TRIZ Cases

An inflatable sealed chamber uses dehumidifiers and telemetry to control humidity around stored helicopters, reducing rust and maintenance costs.

A thermoelectric generator powers gas valve control to block unsafe burner flow and maintain water temperature setpoints.

Balances demand response power savings with user comfort by selecting appliance actions from pre-mapped discomfort levels and usage context.

A 3D turbofan and kitchen-specific filter module raise air exchange and remove harmful gases automatically through sensor-based operation.

Dynamic terminal assignment lets one thermostat detect connected HVAC components, auto-configure ports, and reduce dedicated control hardware.

Intermediate-pressure feedback limits high-side refrigerant flow in CO2 refrigeration, preventing safety-valve release and performance loss.

Automatic HVAC shutdown and damper control use sensor and alert data to block smoke and soot circulation during interior or exterior fire events.

A flexible outer sleeve enables compact air filtration with over 40% removal of 1-10 micron particles while keeping fan power and noise low.

A metal-covered plastic panel uses localized light-transmitting structures to preserve metallic texture while keeping the air conditioner display clear.

Turning off the PFC switching device during voltage dips and delayed recovery cuts surge current and prevents air-conditioner converter faults.

Ozone infused below a building creates a termite-hostile zone while controlled cycling keeps habitable spaces within safe occupancy limits.

Dual superheat and pressure feedback modulates the EEV to keep refrigerant gaseous at the compressor inlet while limiting power use.

Lighting-level histories from existing fixture sensors reveal occupancy and movement without separate building tracking hardware.

A parallel refrigerant branch cools the ECU housing and removes humidity, preventing failures in hot, high-moisture conditions.

Subcooling-based pressure control improves defrost completion detection in parallel outdoor heat exchangers while sustaining heating.

Hot gas from the condenser defrosts the freezer evaporator while the refrigerator compartment keeps cooling, cutting defrost time and power use.

A reflective and refractive strip lens redirects LED light to shelf display faces and dark laminate-column gaps without extra lamps.

A gas-liquid separator after expansion lowers evaporator dryness, reuses separated refrigerant, and raises refrigerator COP.

Sensors compare bleed and recirculated air contaminants to sensory thresholds, triggering purification to protect cabin air quality.

A supercooled phase change material linked to the condenser stores off-peak thermal energy, then releases heat quickly when peak cooling demand rises.

Occupancy sensing and user-path tracking cut false alarms, detect real intrusions, and trigger alerts to staff and connected nodes.

An analog up/down timer uses circulator run time and dual temperature sensing to lower boiler fuel use without outdoor sensors.

A reed switch tracks PTAC vent door closure so the controller stops the make-up air fan, avoiding heat loss, noise, and fan wear.

Sunlight sensing and thermal storage help the outdoor unit avoid frequent on-off cycling, reducing air conditioning energy use and cost.

An air permeable water retainer and drain recover humidifier droplets in a fan coil, limiting leaks while maintaining air quality.

Opening the indoor air outlet before fan activation clears a blocked airflow path and disperses leaked refrigerant to avoid local buildup.

Parallel air-treatment modules switch by season and air quality to cut space, material, and energy use in air handling units.

Subcooling-based expansion valve control keeps refrigerant two-phase at indoor heat exchangers, improving cooling heat transfer and stability.

An encapsulated header-pin adapter links aftermarket control boards to existing HVAC wiring harnesses while protecting solder joints and easing replacement.

A single-compressor hot gas reheat layout splits refrigerant across dual condensers to improve humidity control while keeping charge stable.

Fan runtime is extended for filtration only when pollutant thresholds are exceeded and humidity remains below its limit, improving air quality without worsening comfort.

Rigid cooling coils linked by flexible tubes let a foldable blanket maintain cold-chain temperature in non-refrigerated vehicles with less space and risk.

Automatically shifts HVAC setpoints during high-cost intervals using utility rate signals, reducing peak-hour energy use without manual changes.

Real-time wearable feedback adjusts home appliances to match a user's health profile when routines or environmental conditions change.

A second flow control valve creates two-phase refrigerant to cut expansion tank size while keeping low-temperature circuit pressure lower.

Threshold-based HVAC alerts filter gateway data by priority, cutting contractor workflow burden while speeding response to comfort and capacity issues.

Polypropylene honeycomb sandwich panels with bonded frames create liquid-tight, pressure-tight housings that resist corrosion and simplify panel replacement.

When refrigerant pools in a stopped outdoor heat exchanger, compressor speed and suction pressure control recover flow and preserve cooling capacity.

Foam metal electrodes with capillary water supply cut clogging and power use while enabling reliable nano-mist generation in air conditioners.

Infrared scanning linked to airflow direction finds the coldest surface and concentrates dry air there for faster dew condensation removal.

Rotating the indoor louver and running the blower after leak detection helps diffuse leaked refrigerant and prevent flammable zones.

Blind tilt is optimized by solar heat gain, room temperature, and lighting demand to cut HVAC and lighting energy while limiting glare.

By varying refrigerant flow in selected indoor units and checking temperature response, this case pinpoints pipe-to-wire mismatches quickly.

Refrigerant injection into the compressor lowers R32 discharge temperature, protecting refrigerant and oil during low-ambient heating.

User feedback and location-aware HVAC control help gaming venues adapt to changing heat loads and improve thermal comfort.

A rotatable pressable ring simplifies thermostat control and menu access while supporting learned schedules and occupancy-based energy savings.

A rotatable ring and arcuate display simplify thermostat setpoint changes and menu navigation while making energy-saving choices easier to understand.

A wireless 24V control link replaces outdoor thermostat wiring, avoiding rodent damage and simplifying HVAC installation and repair.

Multiple global and local models let an intelligent controller continuously predict and display time remaining under changing conditions.

A mobile terminal arranges time and operating data side by side so servicemen can assess air conditioner test status without dedicated display hardware.