Mechanical Apparatus TRIZ Cases

Dual-PCM oils with different melting points broaden heat-transfer operation while removing insulating microcapsule walls.

See how continuous ductless fans with multiple exit zones eliminate air stratification and temp

A frosting-based controller switches between hot-gas-bypass and reverse-cycle defrosting to balance heating capacity and startup time.

See how non-invasive audio sensors replace contact-based vibration monitoring to detect HVAC fa

See how integrating ejector, receiver, dryer, and heat exchanger into one container reduces pac

A sensor tracks exhaust-fan operation so a controller can vary makeup-air flow, matching removal rates and limiting depressurization in tight enclosures.

See how a sawtooth connector and gasket system seals air vents without adhesive tape, reducing

See how distance-based air-conditioning control uses away-time estimation to prevent unnecessar

A sub-cooler sends heated air toward a downstream ambient exchanger, reducing freezing risk while maintaining continuous heat absorption.

A pump recirculates humidifier water while an inclined collection tank limits residual water, helping curb scale, microbes, and odor.

See how dual expansion devices with an intermediate heat exchanger reduce compressor discharge

See how a bypass circuit with dual expansion devices and auxiliary heat exchanger enables indep

A display-integrated inlet guides water to the reservoir, enabling refill while the blower operates without case disassembly.

See how multiple sensors and presence detectors distributed across electrical devices improve t

See how a single expansion valve cools multiple compressors by expanding and partially evaporat

A barrier separates incoming water from air in a sealed boiler inlet chamber, delivering drier combustion air while water drains away.

See how error-threshold filtering excludes faulty thermal-image elements to reduce communicatio

A toilet-seat light directs illumination into the bowl while a removable holder keeps batteries accessible and away from contamination.

See how parallel reinforcement learning enables HVAC thermostats to autonomously optimize tempe

See how a refrigerator door uses variable transparency film and proximity sensors to let users

See how a bypass pipe with expander enables simultaneous refrigerating and freezing chamber coo

See how a segmented evaporator with shutoff valves enables independent temperature control in m

Smart valves monitor temperature and flow in AHU coils to detect freezing, restrictions, and weak conditioning while adjusting water flow.

See how a cooling system switches between pumped refrigerant economization and direct expansion

See how compressor frequency adjusts dynamically based on outdoor humidity and evaporation pres

See how a gearbox with stationary motors and movable sensor box reduces wiring length and damag

See how combining variable-speed and fixed-speed compressors eliminates inefficient on/off cycl

See how connected control units share human detection and temperature data to coordinate compre

Water adsorption sensing helps an air purifier estimate filter lifetime more accurately than usage time or airflow alone.

Independent outlet fans and movable enclosures address imprecise airflow direction by targeting cool or room air toward people and areas.

See how learning building heat transfer and apparatus characteristics from operation data impro

See how a closing mechanism reduces blowout port area to maintain wind speed and diffuse leaked

See how wall-recessed LED assemblies with prismatic design and selective pane transparency dire

See how a bypass line with orifice connects economizer and main refrigerant streams to enable p

See how dynamic cooling setpoint adjustment responds directly to battery charging or dischargin

See how evaporator height tuning and axial discharge-to-compressor alignment reduce refrigerant

Adjusts AHU supply-air temperature from energy-use slopes to balance heating and cooling energy between the AHU and terminal units.

See how a thermostat generates equipment-specific wiring instructions on-screen, guiding users

See how mode-based single-level menus replace complex multi-level navigation in HVAC zone contr

See how a breathing light assembly uses segmented housing, optical channels, and reflective str

See how an absorption subcooler applies staged cooling before the gas cooler to reduce flash ga

See how feedback-based fan control stops ventilation when refrigerant concentration drops, redu

See how repositioning light elements to the rear side of the user interface frees drawer space,

See how evaporator tube and ambient temperature sensing detects refrigerant leakage in dehumidi

Capacitive electrode pads detect condensed-water levels without contact, helping air conditioners trigger drainage pumps accurately and avoid foreign-matter faults.

See how a regression model calculates HVAC run time from target, actual, and ambient temperatur

See how driving-part control using natural sound temporal characteristics and eigenvalue filter

An integrated pole joint aligns and engages electrical connectors automatically, replacing cumbersome manual power-string connections between tree sections.