Air-Treating Devices TRIZ Cases

See how magnetic particles and high-conductivity additives in heat transport medium improve hea

See how adjustable coolant flow rates enable unified heat dissipation for EV motors and air con

Auxiliary battery heat is routed through a transport medium to preheat the magnetocaloric element, improving low-temperature startup and heating.

Controller-based fan and compressor speed reduction cuts vehicle HVAC noise near structures during idling while maintaining cabin temperature.

Warmer recirculation air is injected into turbine-cold airflow to prevent condenser icing while shortening aircraft air-conditioning hardware.

Pressure- and temperature-based safe purging removes non-condensable gases with less refrigerant loss while a dip tube improves tank heating.

An ejector-based refrigerant circuit lowers exterior evaporating temperature to boost outside heat absorption and maintain heating capacity in cold weather.

A movable internal wing balances twin air channels to steer airflow while reducing dust buildup, noise, and cleaning difficulty.

Perpendicular support plates and louver fins boost air-side heat exchange while reducing heater thickness and overheating risk.

Nebulized water injected into blower-driven cabin airflow cools and humidifies rear passenger air with low energy use.

Outwardly open housing recesses filled with air or foam raise thermal resistance, cutting vehicle heater heat loss without sacrificing flow space.

A deicing pipe and dual expansion elements keep the internal heat exchanger heating while the external unit is defrosted.

Closed-loop control limits refrigerant mass flow from engine RPM and fuel rack data to avoid stall and overload while preserving cooling.

Hot gas switching and sensor-based frost detection cut unnecessary vehicle heat exchanger defrosting, power use, and cabin cold air.

Detects icing on both the outer heat exchanger and accumulator, then uses hot compressed refrigerant to defrost only when needed.

Controllable airflow paths let one refrigerant circuit heat and dehumidify cabin air efficiently at low ambient temperatures.

A two-part heat exchanger housing uses heat-resistant material only in high-load zones to cut cost while maintaining flow routing and heat transfer.

A liquid heat-transfer loop links the refrigerated compartment and cabin heat exchanger to cool the truck cab with lower energy loss when the engine is off.

Alternating intake and exhaust flow paths through a vehicle heat exchanger prevents condensation and uneven temperature distribution.

A recirculating circuit purges vapor from service hoses before weighing, improving refrigerant charge accuracy in serviced systems.

A helical flow channel around a heated screw core extends fluid residence time while keeping pressure loss low and heat distribution uniform.

Waste heat from a thermoelectric cooler is routed through a heat pipe to drive absorption cooling, improving efficiency and ramp-up time.

Periodic ECU activation lets a transport refrigeration controller read engine sensors during Start/Stop modes while cutting fuel use and battery drain.

Integrated compressor electronics use bus communication to control evaporator temperature with less wiring and simpler vehicle AC assembly.

A curved inlet channel creates fluid swirl to boost vehicle heater heat transfer while limiting pressure loss at high flow rates.

Timed switching gives the seat heater priority first, then powers the door-panel radiant heater to warm occupants without exceeding vehicle capacity.

A heat sink routes switch heat into the vehicle heating fluid, preventing overheating while improving cabin heating efficiency.

Multiple throttling and bypass paths keep evaporation pressure in check, preserving dehumidifying heating at intermediate outside temperatures.

Exhaust-air heat exchange in a vehicle water chamber preheats or precools fresh air to cut HVAC energy use and protect the air filter.

A pot-like housing separates waste gas and heat-carrier connections to simplify assembly, reduce thermal stress, and preserve heat transfer.

Separate PAG and POE oil paths in one valve block prevent contamination and compressor damage during refrigerant service.

A refrigerant bypass and three-way valve suppress heat exchanger frost during heating while cooling the hybrid vehicle charger with lower power use.

Adjustable dual airflow paths and indoor heat exchangers recover thermal energy from exhaust air, cutting vehicle HVAC ventilation losses.

Containment caps isolate the desiccator during receiver brazing, preventing humidity pollution and reducing leak risk in AC circuits.

Integrated flow guides also create the press fit between heat exchanger housings, improving sealing, assembly, and heat transfer.

A solid thermoplastic fin conducts heat from battery cells to a cooling plate, improving cell cooling efficiency and lifespan.

Hollow spaces and insulating sections let one selector valve route hot and cold coolant while limiting heat transfer, size, cost, and power use.

CAN messages keep keyswitch and run signals active so a transport refrigeration engine can complete startup despite low battery voltage or ECU reset.

A curved slot and hinged deflector extend airflow redirection in extreme vent positions while maintaining more uniform outlet speed.

A joint pipe with ribs, flanges, and a gap blocks impact force at the housing wall to prevent cooler damage and refrigerant leaks.

Active louvers built into the engine compartment carrier regulate cooling airflow, speed engine warm-up, and cut part count and drag.

Segmented air guide elements keep vent flow cross-section stable, cutting pressure loss and noise during air deflection in vehicles.

Reducing compressor displacement before clutch engagement smooths vehicle A/C mode changes, cutting torque shock and engine load.

An ejector mixes refrigerant from independent zones to raise compressor suction pressure and mass flow in low-temperature transport cooling.

Movable side seals switch airflow between condenser and radiator to balance HVAC heat transfer and engine cooling under changing vehicle loads.

A partitioned indoor heat exchanger handles cooling and dehumidifying in one layout, cutting valves, pipe length, pressure loss, and NVH.

A centralized energy module merges battery, electronic, and HVAC cooling to cut heat pump size, weight, noise, and vibration.

A battery heat exchanger placed between two expansion elements enables EV battery cooling and heating without separate electric heaters.

Adjustable suction and throttling cut exhaust air volume and pressure loss while maintaining demand-based vehicle cabin ventilation.

A perpendicular-flow screen layout expands filter area in a compact receiver drier, extending service life without disrupting refrigerant pressure.

A geared knob and vane linkage improves cabin airflow direction control while keeping the vehicle air register easy to operate.

By correcting target coolant temperature for pipe heat loss using flow rate and outside air temperature, cabin and battery heating stay effective.

Waste heat from hydraulic fluid is redirected through a heat exchanger to warm the operator structure and cut battery energy used for heating.

Partial airflow sensing lets each EV heater zone adjust output to prevent overheating, avoid shutdowns, and keep cabin temperatures stable.

A coolant loop redirects heat from the inverter and AC motor to warm the battery in cold conditions, avoiding PTC heaters and engine-based heating.

An integrated EV heat pump uses battery and drive-train waste heat plus battery preconditioning to sustain cabin heating in extreme cold.

Coolant-to-refrigerant heat exchange and controller-set subcooling improve HVAC and propulsion thermal efficiency in low-waste-heat vehicles.

Fluidically separated cooling loops use a heat exchanger to protect deionized coolant and independently control fuel cell and brake temperatures.

An integrated refrigerant and cooling-water loop balances cabin cooling, battery heating, and electronics cooling with lower power use.

Multiple intake openings outside the blower-facing region balance evaporator airflow, reducing freezing risk and uneven cabin cooling.

A single actuator and gear mechanism moves both vane sets in a vehicle air vent, cutting size and cost while keeping precise airflow control.

Route roof-mounted cables through the AC housing via a removable hub to avoid extra openings, reduce water ingress risk, and protect cables.

Sensor-based interlock control adjusts refuse vehicle HVAC operation to maintain cab comfort while cutting fuel or battery drain.

Porous internal ducts in the air inlet box absorb blower noise before it reaches the cabin, preserving strong vehicle HVAC airflow.

A pivoting air diffusion grille opens ventilation ducts for cleaning in passenger rail compartments without removing seats.

Multiple coolant loops and valve switching let EVs combine battery, drive train, and ambient heat for lower-energy cabin and battery thermal control.

A controller harvests prime-mover energy when allowed and switches to stored power to keep transport climate control running in restricted zones.

Controller logic shifts EV air conditioning power by climate and vehicle energy state to curb demand peaks while maintaining cabin conditions.

Predicted occupancy lets vehicle cabin zones be preconditioned only when needed, balancing passenger comfort with lower HVAC energy use.

A compact HVAC layout places the rear seat outlet below the heater core to save cabin space and prevent condensate backflow.

Controlled airflow with HEPA filtration and UV treatment forms an air barrier that limits aerosol transmission in enclosed spaces.

Deep UV LEDs, internal battery, and solar charging sanitize parked vehicle interiors without draining the vehicle battery, while status lights reassure users.

A downstream heater core, air mixing chamber, and discharge pipe improve HVAC heat exchange while providing supplemental coolant cooling.

A movable shutter allocates intake airflow between the radiator and condenser to maintain drive-system and cabin cooling under changing conditions.

A shared chiller links battery and component coolant loops to cut pipe complexity, weight, noise, and power use in vehicle thermal management.

External sensors and public air data are modeled with vehicle-specific factors to estimate cabin air quality without costly in-cabin pollutant sensors.

Combining the chiller, reservoirs, pumps, and valves cuts circuit complexity and flow resistance for more efficient EV thermal management.

Temperature and motion feedback adjust valve position and fan speed to keep cabin scent even and extend fragrance cartridge life.

Risk and urgency assessment from sensor data lets a parked vehicle adjust HVAC, windows, or engine to prevent heat and air-quality hazards.

A cam actuator selectively opens sealed scent cartridges for controlled airflow, making in-vehicle scent changes easier and more precise.

Cab HVAC air is routed through a conduit and valve to clear dust, cool utility vehicle driving lights, and support defrosting.

Predictive departure timing lets the vehicle sleep deeply, then wake HVAC only when needed to save battery and keep the cabin comfortable.

By adjusting evaporator target temperature by driving state, the clutch preserves cabin cooling during departure or overtaking without costly control valves.

Sensors and diverters switch vehicle airflow through only needed filters, improving cabin air quality while reducing resistance, energy use, and filter wear.

Recirculated clean air purges coarse and fine cab filters in service, extending CAT4 filter life and reducing farm vehicle downtime.

Sensor-driven cabin region control adjusts vents, windows, and sunroof to reach comfort faster while reducing energy use and occupant discomfort.

By varying cabin vent flow resistance, this case maintains vehicle overpressure in recirculation mode to block unfiltered air and cut noise.

A resilient securing unit locks a movable HVAC component for mounting, then releases it automatically during carrier-to-body coupling.

A bossed groove and elastic rib create a watertight HVAC housing seal, cutting extra sealing parts, assembly time, and cost.

Blown and extracted airflow stirs up and removes cabin dust automatically, cutting manual cleaning effort in shared vehicles.

Infrared cameras read occupant body temperature patterns and clothing effects to auto-adjust vehicle cabin climate without distracting the driver.

A hollow rear pillar replaces quarter-glass venting, while an integrated resonator cuts booming noise and improves cabin comfort.

Image comparison before and after A/C operation detects clogged drip valves, helping prevent cabin water ingress and discomfort.

Ascending and descending side airflows create separate seat climate zones, limiting scent and heat mixing between adjacent occupants.

A valve-controlled heat circuit switches cabin heating between heat pump output and engine heat with less flow-path complexity.

Operational power and speed are used to estimate air density, detect faulty sensors, and keep vehicle cooling active when measurements drift.

Pressure sensing at the filter element enables wireless condition monitoring, helping replace filters by actual remaining life instead of fixed intervals.

A multi-loop heat pump and valve package recovers battery and powertrain waste heat to warm the cabin and battery with less energy use in cold weather.

A switched evaporator target strategy raises temperature for coolant heat dissipation without continuously cutting cabin cooling capacity.

Static vanes, rotating ducts, and choke points raise airflow pressure to cool heat sinks and camera arrays across a spinning assembly.