Mechanical Apparatus TRIZ Cases

See how a bypass valve and pressure-based controller prevent cooling medium freezing in outdoor

See how dynamic ejector capacity control shifts between liquid and gas ejectors based on refrig

See how a controller stops indoor fans before switching from cooling to heating for hot-water s

See how a dual evaporator-condenser configuration enables refrigerant to evaporate and condense

See how separating device control programs into external storage enables air conditioner model

Multiple wireless transceivers let a thermostat pair with nearby devices for amenity control and trigger video feeds in safety events.

See how a phase-change thermal store pre-cools ice slurry during off-peak hours to meet peak co

See how lateral UV irradiation of plate-shaped photocatalyst members reduces air cleaner thickn

See how a modular air-treatment system uses stackable units with a single control device to sca

Multiple valves and expansion paths balance space conditioning with hot water generation while limiting flashing, frost, and energy loss.

See how a controller detects fan regenerative voltage from outside wind and prevents unintended

A shared air intake and blower let building HVAC and fuel cells use the same airflow path, cutting air-conditioning energy while generating electricity.

See how pressurized sealed pathways and a multi-functional containment center trap odors at the

See how separate compressor and pump frequency control enables independent operation of refrige

See how a water regulator uses inlet and outlet temperature sensors to adjust valve opening, ma

See how a light guide member transforms direct LED light into indirect illumination, reducing u

See how segmented engagement and lug portions on the display cover eliminate visual obstruction

See how a discharge unit and refrigerant sensor detect leaks early in plate heat exchangers whe

See how a lower header supplies hot gas refrigerant to flat-tube heat exchangers, defrosting th

See how suction temperature monitoring adjusts compressor frequency to prevent freezing in indo

See how liquid CO₂ fed through capillaries expands in mold channels to cool thin cores without

See how analyzing pump output signals detects air layers in water tubes, enabling supercooling

A real-time HVAC controller uses thermal mass to pre-cool or pre-heat buildings before peak periods, reducing energy costs and carbon dioxide emissions.

See how adjacent appliance identification and automatic pairing enable unified control of stack

A three-way valve alternates refrigerant paths while ejector throttling reduces pressure differences and simplifies mode switching.

See how aggregated temperature-based capacity calculation across multiple indoor units enables

A fan-driven UV LED light fixture sterilizes drawn-in air in a compact chamber, improving airborne virus, bacteria, and fungi inactivation.

See how preheating or precooling the heat medium before optimal start-up control stabilizes ind

See how integrating an anode assembly into the heat exchanger header ensures continuous water c

See how dedicated ductwork and independent fan control enable custom cooling strategies for dif

See how bent-fin heat exchanger tubes in nested rows increase water heater thermal efficiency b

See how a combined heat exchanger integrates heat pump and exhaust-heat circuits to recover in-

See how a dual evaporator integrates air and liquid cooling sub-circuits in one casing to handl

See how an electronic expansion valve uses four temperature sensors to control refrigerant flow

See how a contactless magnetic transport element moves freely inside clean rooms without physic

See how automated credentialing and pre-provisioned setup data reduce HVAC installation time an

See how preconfigured nighttime setback and five-and-two programming modes reduce thermostat pr

See how periodic imaging of water surface height before and after pump operation improves filte

See how a camera-based inspection system records HVAC damper positions with date and time stamp

See how a flexible tube inserted directly into the bucket eliminates separate discharge conduit

See how attribute-based programming replaces time-mapped set points with occupancy and scenario

See how a refrigerant circuit converts expansion energy to drive ultrasonic or mechanical remov

See how a modular economizer uses movable valves to switch between parallel and series configur

See how conductive surface treatment and grounding paths prevent charge build-up and ion confin

See how QR code scanning automates device registration and terminal assignment in building mana

See how LED-based hardware test modes enable on-site damper diagnosis, reducing misdiagnosis an

See how a chiller controller predicts liquid droplet carryover risk from evaporator and condens

See how automated operation changers determine indoor unit connections in parallel, eliminating

See how targeted screening identifies antimicrobial agents that inhibit specific odor-causing b

See how sequential closure of room air inlets with differential pressure control determines ind