Mechanical Apparatus TRIZ Cases

An aircraft system cools ambient and compressed process air through a shared refrigerant circuit for flexible cabin-air operation.

See how a cold energy storage system pre-cools air before the evaporator to reduce compressor p

Uneven refrigerant distribution across parallel outdoor units is corrected by comparing compressor overheat and adjusting electronic expansion valves.

See how rule-based load shedding ranks HVACR and lighting loads by occupancy and ambient condit

Mode reversal can send particulates backward; a check valve and bypass conduit protect components while filtering cooling flow.

See how integrated airflow and sash sensors disable the light source when unsafe conditions are

A heat exchanger and plant-based biofilter exchange indoor and outdoor air while reducing thermal losses and system costs.

See how a feed-forward controller with dynamic valve authority measurement and oscillation supp

See how a heat pump calculates frost formation by dividing air-evaporation temperature differen

See how a liquid coolant circulation system with bypass throttling and phase-change heat transf

A timed nozzle injects defrosting liquid onto the outdoor heat exchanger to remove frost, sustain heating, and reduce unnecessary liquid use.

Directional chambers in two tubes measure low gas flows through curved ducts, reducing noise without requiring a straight duct section.

See how a thermostat automates software updates by detecting HVAC devices, retrieving compatibi

A central unit compares wireless room-temperature readings from a movable volatile dispenser and adjusts air handling to maintain set points.

See how automatic sensor detection and control-type determination enable dynamic menu repopulat

See how cylindrical precipitators with cone-shaped ducts maintain separation capacity at high a

See how a standardized data model integrates power, building, and security domains to reduce en

See how a zone control panel uses mode-specific single-level menus to simplify HVAC configurati

See how compressed air atomizes hydrogen peroxide through small pipes to multiple rooms, elimin

See how pressure-based leading indicators enable faster superheat control in HVAC-R systems, re

See how a touch-sensitive thermostat merges multi-screen controls into one main screen, enablin

See how sensor-based guest tracking triggers pre-arrival thermostat adjustment, reducing hotel

See how a two-wheel air cycle machine eliminates the compressor motor, reducing ECS weight and

See how merging suction header, heat exchanger, and accumulator functions into one assembly red

See how a refrigeration cycle apparatus integrates excess voltage detection into the reset circ

See how ratio-based expansion valve control prevents refrigerant stagnation in stopped units wh

See how intermediate heat exchangers and heat medium circulation prevent refrigerant leakage in

See how adaptive building model selection based on sensor data and distribution types improves

See how relocating operation data storage from remote controller to indoor device preserves mai

See how temperature-triggered horizontal airflow prevents cold air infiltration near walls whil

See how zoned two-phase and liquid-phase refrigerant paths in flat-tube heat exchangers reduce

See how a connected air filtration system uses real-time particle sampling and automated airflo

See how separate heating and cooling setpoints with a dead band prevent wrong-mode activation i

An integrated ventilation flap and thermal anemometer simplify installation while turbulence conditioning preserves volume-flow accuracy across pipe geometries.

See how network connection state and operation log analysis replace refrigerant pressure detect

See how selective refrigerant-system operation with circulators transports conditioned air acro

See how an intermediary heat exchanger transfers heat between old and new refrigerant systems t

See how hybrid modeling combines detailed and reduced-order simulations to predict two-phase fl

See how a refrigerator door with variable transparency film and proximity sensor lets users vie

See how a reed switch and magnet system activates LED fixtures when cabinet wings open, reducin

See how a phase change material chamber with temperature-driven air exchange reduces air condit

See how low-pressure relief devices prevent CO2 refrigeration overpressure during high-temperat

See how a single movable actuator with dynamic positioning enables selective ice and water disp

See how running the indoor fan during four-way valve switching masks impulse noise and avoids c

See how binary dampers and outlet-ratio calculation replace expensive VAV units, enabling cost-

See how measuring airflow resistance during fan-only operation isolates clogging detection from

See how a central communication unit coordinates scent release with appliance operation using s