Mechanical Apparatus TRIZ Cases

By evaporating and condensing refrigerant twice per cycle, this dehumidifier boosts drying capacity without increasing compressor power.

By using the evaporative unit itself as reserve water storage, this case cuts tank size and maintenance while preserving data center cooling.

Dynamic buck and boost switching matches DC-link voltage to motor load, cutting switching loss and improving low- to high-speed drive efficiency.

A powered electrode keeps nonwoven filter media electrostatically charged, sustaining dust capture without costly electret fibers.

A variable-opacity refrigerator door and proximity-triggered lighting let users view contents without opening, reducing cold air loss and power use.

Distributed control units replicate HVAC settings over a local network, cutting manual setup and preserving operation when Internet access is unavailable.

Multiple HVAC units use a control unit with Wi-Fi and Wi-Fi Direct links to support accurate local or remote diagnosis without Internet dependence.

Using suction pressure and superheat feedback, this case shows how outdoor fan control limits compressor discharge temperature and suppresses frosting.

Maintains target high pressure during positive cycle defrost by coordinating bypass superheat and main valve control to limit liquid backflow.

Baffles split the micro-channel evaporator inlet manifold into sections, replacing distribution pipes to improve refrigerant uniformity and cut complexity.

Integrated blower and refrigeration airflow lets a table cabinet switch between cold and natural wind while saving floor space.

Fan speed and power data create a virtual sensor that detects outdoor coil frost or fouling, avoiding false alerts and unnecessary defrost cycles.

A bypass valve redirects refrigerant around the outdoor heat exchanger to lower heat conductance, reduce compressor cycling, and improve heat recovery.

Selective valve coupling shifts refrigerant between active and inactive lines, keeping charge stable across water heating and cooling modes.

Dual process and reactivation airflows improve moisture removal, while switchable outlet power expands portable drying use in restoration work.

A self-configuring thermostat override modulates HVAC duty cycles to cut energy use while avoiding costly manual retrofit setup.

Fine droplets spread across stacked films and evaporate in airflow to maintain humidity and sterilization without dew, ice, or stains.

Area registration links indoor units and ventilators so HVAC operation is blocked until leak ventilation coverage is fully assigned.

Direct peak-cut requests trigger dynamic compressor and fan control, reducing air-conditioner power quickly and at a defined rate.

Manual setpoint changes are learned into an automatic thermostat schedule that saves energy without burdening users with complex programming.

Higher inlet airflow than extraction creates an air curtain at the open side, keeping small-part spray work clean while cutting booth energy use.

Measured room temperature feeds back into the operating plan to cut power use while keeping indoor conditions within a comfortable range.

By preheating or precooling only selected indoor units and exchanging heat medium between others, startup comfort is maintained with less wasted energy.

A compact spray booth uses positive-pressure airflow, an air curtain, and separate baking and curing ovens to process small parts cleanly with lower energy use.

Opposed push hoods and side guides collide clean air streams to create a wider high-cleanliness workspace without a full enclosure.

A transparent electrode sheet extends capacitive touch detection beyond the panel region, enabling side input without extra wiring or switches.

Continuous ON/OFF modeling with complementarity constraints lets multiple HVAC units be jointly optimized to cut energy use and complexity.

A rotating nozzle forms visible spray lines in a transparent water tank while enabling separate humidification and air cleaning in one unit.

Multi-sensor processing improves occupancy detection accuracy while fitting a standard switch box for easier installation and fewer false triggers.

A time-based interface merges facility, user, reservation, and alarm histories so operators can spot correlations and manage facilities faster.

By modulating condenser fan speed from duct temperature feedback, this HVAC case improves dehumidification without over-cooling or excess energy use.

Outdoor-temperature-based airflow limiting cuts wasteful indoor fan power while preserving cooling load handling and improving APF.

Temperature-based flow regulation balances upper and lower heat exchanger sections to prevent residual frost during defrosting.

Reflective open-cell shielding directs UV toward HVAC coils and drain pans while limiting exposure to access openings and UV-sensitive parts.

Pressure and temperature data captured before shutdown enable refrigeration cycle abnormality detection during long off periods without running the system.

Self-heated and reference thermistor cells measure duct airflow under changing humidity, temperature, and pressure for more accurate HVAC calibration.

A control interface and standoff-mounted motor speed driver let single-speed HVAC blowers run at multiple speeds without full system replacement.

An electromagnetic regulating valve modulates refrigerant flow to match reduced load, preventing overcooling and cutting energy waste.

A throttle-based refrigerant circuit decouples fan speed from pressure control, cutting noise while maintaining cooling performance.

A switched-mode supply replaces the 24 VAC transformer to match HVAC control power demand and cut standby consumption below one watt.

Weather-fed facility models simulate power use and auto-build control scenarios, cutting expert effort while keeping energy savings consistent.

A thermosiphon interface keeps hazardous VCC refrigerant outside the process area while maintaining cooling without powered components.

A single refrigerant-line temperature reading enables remote detection of HVAC restrictions, cutting sensor count, cost, and downtime.

Concurrent Wi-Fi Direct and access-point links let distributed HVAC controllers share temperature requests across multiple units without central server dependence.

Electric-field grid arrays in a ceiling plenum agglomerate fine particles for retrofit air purification with simple installation.

A hollow-core door routes air through offset margin openings to relieve room pressure buildup while preserving privacy and improving air quality.

Rotating outlet flaps inward cuts airflow from selected ceiling indoor unit outlets while suppressing dew condensation without added parts.

Matching expansion resistance to compressor capacity keeps refrigerant mass flow balanced and stabilizes evaporating and condensing temperatures.

Fan sampling timed by refrigerant temperature and operating mode improves leak detection in ceiling-mounted indoor air-conditioning units.