Mechanical Apparatus TRIZ Cases

See how a dual-compressor refrigeration system with variable expansion valves enables precise,

See how a rotomolded air scrubber with multiple filter apertures and removable covers balances

See how a dual-circuit HVAC system uses an intermediate heat exchanger and non-volatile fluid t

A relay control module uses refrigerant and airflow sensing to shut down HVAC units, open dampers, and run fans when leaks are detected.

See how a water-soluble trigger and spring-loaded valve enable powerless leak shutoff for gas a

See how direct hydrogen peroxide injection into supply and discharge lines eliminates suction p

See how wireless transceivers replace bulky wiring in HVAC systems, reducing installation cost

Segmented duct heating isolates the filter zone to inactivate microbes uniformly while limiting heat loss in HVAC airflow.

See how LSTM models with reconstruction error enhancement coefficients detect refrigerant leaka

See how a walk-through portal generates hydroxyl ions using UV light and titanium dioxide to re

See how plasma induction, UV-C photolysis, and hydrogen peroxide convert harmful ozone into hyd

See how drain pump operation synchronized with evaporation and dew point temperature reduces po

Real-time CO and NO2 sensing modulates parking garage fan speeds to cut energy use and peak demand while maintaining safe air quality.

Dynamic water injection on the outdoor heat exchanger boosts evaporative cooling and cuts air conditioner energy use based on fan RPM.

See how dynamic compressor frequency adjustment compensates for increased heating load during s

See how short-range wireless modules and signal strength indicators help technicians quickly lo

See how dynamic vapor injection control and economizer disabling resolve the heating-cooling ef

A controller pairs a variable-speed exhaust fan with a constant-speed fan to meet airflow targets with lower drive count, cost, and footprint.

See how an outdoor HVAC unit integrates sensors and a user interface to display real-time tempe

See how a three-stage defrosting sequence prevents water from the upper heat exchanger from ref

See how a dual-filter system with flow-path switching bypasses dust-laden filters during decont

See how a discharge unit positioned above the indoor unit enables air purification retrofits wi

See how a buckle-based filtration device eliminates flanging structures, reduces air conditione

See how a modular UV-C air circulation system uses baffle assemblies and angled fans to disinfe

A narrowed-beam light guide directs sterilizing light to defined air conditioner zones, improving air treatment while protecting nearby components.

A tension spring keeps the flap biased at its nominal position, improving airflow stability, pressure response, and noise control.

See how operating-ratio-based cooling power adjustment maintains refrigerator temperature withi

See how measuring liquid refrigerant in a flash tank against expected values enables instant ch

See how movable breezeless panels and multi-angle air outlets resolve the contradiction between

See how sequential airflow mode switching—horizontal, diagonal, then wall-directed—reduces wind

See how synchronizing heat carrying fluid flow with fan speed maintains temperature difference

See how dual evaporators with fluorine pumps and air mixing channels reduce energy consumption

See how thermoelectric totes with central heat rejection replace compressor refrigeration to ex

See how a dual control surface system enables HVAC operation with housing closed or open using

See how preheating or precooling the heat medium before optimal start-up control ensures indoor

See how a dedicated communication line connects air-conditioning apparatus, energy management g

See how a CO₂-pentafluoroethane-fluoromethane refrigerant mixture achieves temperatures below -

See how networked sensor nodes with adaptive thresholds detect smoldering fires earlier, reduce

See how a conductive plastic support member grounds a metal rotatable member to prevent static

See how a partition plate separates the air passage from the refrigerant detection space to pre

See how a rotating watering housing scatters water to create rain view effects, enabling separa

See how spatial separation of condenser and evaporator enables high-pressure refrigerant use an

See how integrated water sensors and solenoid valves detect leaks, halt flow, and de-energize h

See how a manifold with modulating dampers adjusts airflow dynamically across building zones us

See how pulsed electric fields applied during specific AC phases deactivate airborne pathogens

See how location-based sensor activation and server communication enable air purifiers to start

See how sensor-driven filter selection and predictive modeling optimize indoor air quality whil

See how a movable discharge device with segmented openings and sensor-driven control adjusts ai

See how segmented y-axis grouping of disparate HVAC parameters by unit type enables visual comp