Mechanical Apparatus TRIZ Cases

See how humidity-based compressor sequencing switches between balanced and clustered modes to o

Sharing a microphone or receiver opening lets the gas sensor sample outside air while preserving the device’s water resistance.

See how a heat pump reconfigures indoor coils from parallel to series flow using a three-way va

See how merging a flash tank with subcooler/superheater eliminates external heat sinks and sequ

See how radio signal emitting devices embedded in fabric items encode thermal data to monitor i

See how software-based hydronic control integrates radiant panels and ground heat exchangers to

Segmented housing compartments help fill a refrigerant flow path switch with less foam, reducing dew condensation and assembly cost.

See how a brush-like discharge electrode with extended base protrusion and insulating intermedi

Unequal flow-path counts in parallel heat exchangers raise refrigerant velocity during cooling while limiting pressure loss across the cycle.

See how a dual-loop refrigerant design isolates hazardous outdoor refrigerant from safe indoor

See how a motion-based occupancy sensor dynamically adjusts timeout periods based on detection

See how airflow-direction flaps adjust based on detected thermal sensation levels to match indi

An HVAC controller tracks heat and cool set points, preserves the minimum deadband after user changes, and restores prior settings when possible.

See how a tangential flow regulator with curved walls uses centrifugal force to stabilize two-p

See how a plate-type bipolar ionizer uses porous emitter and ground plates with dielectric barr

See how Particle Swarm Optimization automates PID tuning in VAV building control systems, elimi

See how supercapacitor energy storage and wireless spread-spectrum communication enable fire-ve

Separate leading ports route strong and weak electricity wiring into an invertible control box without noise interference.

Automatic component discovery links controllers and ventilation dampers, keeping building models current during construction and operation.

See how radial air suction parts around a centrifugal fan enable dual-side airflow, reduce devi

See how standby sequence numbers coordinate shutdown requests among multiple water chilling uni

See how cold-storage heat exchangers and compressor waste-heat recovery integrate quick-freezin

See how a ceiling air conditioner uses partial blowout mode and air current blocking to reach d

Modular compartments and cartridge sets remove CO₂ from return air, reducing outdoor-air demand and easing scrubber assembly.

See how branched port identification enables one port to serve multiple indoor units, reducing

See how modular segmentation and glove-port access reduce sealing complexity while maintaining

See how a distributed thermostat uses random search to optimize HVAC switching based on real-ti

See how cognitive agents and a learning engine correlate subsystem data to identify building st

See how dual-circuit switching redirects refrigerant flow and air passages during defrost to ma

See how a recirculating heater with reservoir preheating maintains setpoint temperature during

See how 5-7 micron nebulized droplets with cyclonic vortex mixing achieve complete evaporation,

See how programmable schedules for ventilation, humidification, and dehumidification units redu

See how offset values enable individual thermostats within a group to counter local heat loads

An automatic fan hierarchy builds minimum-ventilation stages and substitutes failed equipment to maintain animal-house climate conditions.

See how an impermeable surface with gradient and spray system enables chemical cleaning of lami

See how a multi-device control unit manages air temperature, humidity, radiation, and air veloc

See how a remote controller pre-stores outdoor and indoor unit identification data to display m

See how a collapsible flat-panel filter assembly reduces shipping volume and installation time

See how a blend of R-1336mzz-(Z) and R-1130-(E) achieves GWP below 150 while maintaining vapor

See how a flowpath switching valve and mode controller enable both heat pump and heat recovery

See how dynamic evaporating and condensing temperature control per indoor unit reduces compress

See how relocating the cleaning mechanism and dust box between adjacent filters and fans mainta

See how extremum-seeking control dynamically adjusts VRF outdoor unit pressure setpoints to min

A flex-circuit temperature sensor moves toward the cooler lower housing to limit internal heat interference and improve HVAC accuracy.

See how automated wire sensing circuits detect field wire connections and HVAC system type, imp

See how a subcooler heat exchanger uses flash-tank refrigerant to supply low-temperature compre

During compressor startup, a suction pressure-regulating valve limits refrigerant flow, while a parallel bypass restores full capacity in normal operation.

The pre-heating heat exchanger warms ambient air before indoor delivery, helping the heat pump tower improve COP and reduce required heating energy.

See how distributed temperature sensors in lighting control modules enable HVAC automation with

Valve authority sensing helps a feed-forward hydronic controller limit pressure loss, suppress oscillations, and maintain control accuracy.