Mechanical Apparatus TRIZ Cases

Location-specific weather is matched with appliance environmental history to predict freezing, bursting, and other operating errors early.

See how asymmetric positioning of heat exchanger and pump in opposite housing zones increases c

See how signal-parameter monitoring predicts ultrasonic sensor cleaning needs in HVAC ducts, re

See how a dual evaporator-condenser refrigeration cycle with modulating valve control increases

See how a mixed-refrigerant system with optimized vapor pressure prevents dryout and coil burno

See how outdoor-unit exhaust temperature detection with compensation algorithms enables accurat

See how replacing a four-way valve with four independent two-way valves enhances pressure resis

See how adaptive HVAC control uses real-time air quality data and predictive models to minimize

See how occupancy sensors and predictive algorithms enable pre-tempering and passive regulation

See how time-division multiplexing and frequency-based signaling enable air conditioner recogni

See how a machine learning air handler uses low-energy electromagnetic ionization to collect po

See how dynamic compressor frequency adjustment and condensation pressure limits prevent suctio

See how segmented LED modules with daisy-chain addressing enable flexible outdoor lighting spac

Infers internal heat gain from aligned indoor temperature, mode, state, and weather data to model heat flow without power readings.

See how a dual refrigeration cycle with hot gas path enables efficient evaporator defrosting wi

Stored return-air and space-temperature differences let HVAC control continue when space sensor or control data is unavailable.

See how gas detection and efficiency computation provide timely filter replacement alerts, reso

See how segmented reservoirs, Venturi mixing, and dual power sources enable flexible chemical r

See how a clamped capillary tube fully inserted into the refrigerant inlet pipe reduces flow no

See how bi-level optimization matches water tank storage capacity with daily demand response st

See how a flat damper blade larger than the duct opening rotates to seal during fire conditions

See how a water-based air filter uses bubble release, cooling condensation, and carbon filtrati

See how a segmented baffle with central opening increases air velocity to the ionizer, achievin

See how laminar air curtains isolate workpiece and tool compartments from transfer areas to pre

See how a relay unit with three-way valves and pressure sensors enables independent evaporating

See how automated conversion of operation definitions into state transition information elimina

See how solenoid valves and expansion valve control isolate refrigerant supply to leaking heat

See how a cylindrical air purifier integrates a plant support system and fabric covering to red

See how an isolation barrier between electromagnetic and contact units blocks refrigerant entry

See how wireless pressure sensors and automated flow monitoring replace manual venting checks i

See how flow path switching maintains consistent refrigerant flow direction across heating and

See how dual motors and rotatable blades on a shared axis enable multi-directional cooling with

See how a non-azeotropic R32-R1234yf refrigerant mixture with optimized mass fraction and third

See how an HVAC processor calculates air quality recovery scores from pollutant decay patterns

Automatic filter type detection sets fan speed to match airflow resistance, avoiding excess noise and weak air volume.

See how optical fibers deliver LED-based UV light close to filter surfaces to achieve effective

See how automated face tracking directs low-velocity filtered air to the breathing zone, reduci

See how a cryogenic pump nested inside the insulated enclosure increases cooling power below 1.

See how frequency-based overdrive enables a two-stage compressor to deliver elevated heating ca

See how dual outdoor heat exchangers with bypass flow paths enable continuous heating during de

See how an electric heating coil assembly with external disconnect switch replaces fossil fuel

Switchable refrigerant paths across multiple outdoor heat exchangers improve low-temperature heating and cooling while managing frost and heat absorption limits.

See how a dual-path gas cooler recycles rejected heat back into the refrigerant to maintain hot

See how zone-specific sensors and dampers circulate air between zones based on real-time IAQ da

See how an intermediate member with angle-controlled channels guides capillary and evaporator t

See how an ejector with control valves enables refrigerant pressurization during cooling-domina

See how a chiller controller calculates operational temperature ranges from inlet, outlet, and

See how selective expansion valve opening during oil recovery reduces noise from stopped indoor