Mechanical Apparatus TRIZ Cases

Occupancy and clothing data let HVAC adjust air cleanliness before sensors detect degradation, improving response time and energy use.

Pressure-based fan control balances supply and extraction airflow in double-flow ventilation without flowmeters or bypass channels.

Multiple water-level sensors in a condensate drain fitting detect AC drain blockages early, enabling shutdown and overflow prevention.

Correlating energy-use and HVAC runtime data reveals power-draw trends without manual retrieval, enabling remote assessment and lower energy use.

A polynomial torque command keeps blower air flow on target despite pressure loss and static pressure changes, with less test data.

Stacked HEPA, deodorizing, and antiviral filters are combined in one cylindrical assembly to simplify replacement and improve indoor air cleaning.

Plastic plenum and support construction cuts cage cabin weight, resists disinfectant corrosion, and improves cleaning and height adaptability.

Circulator run time drives an analog threshold that adjusts boiler firing without outdoor sensors, cutting fuel use and preventing temperature runaway.

An elevated upper-wall light and folded edge shield the refrigerator interior from direct glare while keeping illumination effective and maintenance easy.

Dynamic energy-per-flow gradient control adjusts HVAC valve opening to improve heat exchanger efficiency without fixed temperature thresholds.

Multiple filter faces discharge clean air in different directions to reach operating tables, equipment, and other room areas more directly.

Dual flow paths and a movable control unit let purified air and humidified air be supplied separately while improving air transfer efficiency.

After a flammable refrigerant leak, the control unit keeps the fan running while letting users silence the warning to cut noise and power use.

Alternating header and branch pipe paths distribute refrigerant evenly, reducing frost concentration and improving defrosting in air conditioners.

A gas-liquid separator and liquid refrigerant remover keep liquid out of the compressor, reducing overload and improving refrigerator cycle efficiency.

Temperature difference across the evaporator guides compressor speed and blower control, cutting wasted HVAC energy while improving space temperature control.

Recursive time-varying gradient estimation speeds vapor compression control convergence without averaging, improving real-time energy optimization.

Multi-stage tubular carbon and particle filters extend airflow dwell time while lowering pressure drop and fan load in air cleaning.

Pre-checking load conditions before adding or stopping a heat source machine avoids repeated cycling and keeps operation stable.

Parallel evaporator conduits and valve switching speed refrigerant redistribution after OFF cycles, cutting startup efficiency loss.

Light patterns on a closed-curve air outlet show discharge direction, helping users understand airflow without adding extra room space.

A compact annular electrode layout boosts ion wind volume and pressure for portable ozone sterilization without fans or pumps.

Flow control directs sampled duct gas toward a membrane, boosting turbulence for faster, more sensitive detection with low pressure loss.

Separate sensible and latent heat loops improve humidity precision, cut energy use, and help prevent mildew in indoor air conditioning.

Periodic wireless transceiver scheduling preserves remote thermostat access while extending battery life in systems without C-wire power.

Individual output control for mixed-capacity heat source units cuts energy use during demand events without slowing system response.

A vertical fresh-air and recirculation intake layout uses gravity drainage to divert water below the recirculation opening without extra seals.

Remote messages let wireless sensors update sleep and wake behavior online, reducing manual setup while extending battery life.

Refrigerant injection into the compressor lowers R32 discharge temperature, protecting refrigerant oil and supporting heating and cooling.

GPS-based occupancy tracking adjusts thermostat setpoints to cut HVAC energy use while restoring comfort as users approach home.

Air guiding elements reroute low-turbulence clean room flow around production equipment to limit particle whirlup and maintain aseptic conditions.

A processing circuit estimates air handling unit time constants from element sequences, avoiding bump tests and speeding controller setup.

Magnetically mounted LED light bars retrofit existing mirrors with even, app-controlled illumination and ambient self-adjustment.

Solenoid-controlled economizer liquid injection manages refrigerant flow in cooling, heating, and null cycles while preventing compressor slugging.

Solid-state switching and power monitoring isolate HVAC wiring faults, prevent short-circuit damage, and help users identify blown fuses.

Two bonded films and injected resin integrate graphics, touch sensors, and circuitry into one sealed panel that cuts assembly cost and failure points.

Passive wireless tags and sensors keep building models current during construction, enabling more accurate control and energy management.

A shared-wall economizer and falling film evaporator help low-pressure chillers improve heat transfer while cutting piping and footprint.

A selectable linkage mode keeps the human sensor active in standby so external devices can still be switched with lower power use.

BAS sensor feedback links VAV boxes to the correct air sources by tracking airflow responses, reducing manual HVAC configuration errors.

A compact two-module UVX ionization layout sanitizes vehicle AC airflow and surfaces while reducing fungi, bacteria, and VOCs.

Dual LED zones and shared fan airflow improve quiescent lighting, fixture cooling, and compact fan-light housing aesthetics.

Fan speed, airflow, and inlet temperature are used to detect frost early and trigger defrost only when needed in vapor compression systems.

Pressure-based ERV control balances fresh air demand without economizer wiring, cutting interface complexity and HVAC energy loss.

Alternating first and second refrigerant pipes in one casing shrink channel switching units, easing installation in tight HVAC spaces.

A spring-based braking mechanism decelerates the airflow-driven cover before the end stop, reducing impact noise and wall box deformation.

Outside air temperature trends drive outlet water adjustment to prevent indoor overshoot and undershoot while improving HVAC efficiency.

Thermoelectric generators between the tank and outer wall power a titanium anticorrosion anode without batteries or external supply.

Main controller data is copied to an auxiliary HVAC controller, enabling quick replacement and correct feature loading without manual setup.

An EPP insulating jacket with sensors, pump, and adaptive control cuts tank heat loss while improving peak and continuous hot water delivery.