Air-Treating Devices TRIZ Cases

See how embedded cargo temperature sensors and thermal mass modeling enable precise refrigerati

See how a dual-circuit eutectic device uses phase-change cooling and cryogen integration to mai

See how a folded conductive fiber sheet positioned immediately upstream of each blowing port he

See how abnormality differentiation prevents repetitive heater halts by restoring heating only

See how a monobloc valve distributor body with straight through-ducts and integrated solenoid v

See how a thermoelectric module using the Peltier effect enables both heating and cooling in a

See how dynamic compressor speed adjustment melts heat exchanger ice while maintaining cabin co

See how a fuel cooling circuit thermally coupled to a refrigeration bypass prevents thermal exp

See how a plug-in PTC heating element with elastomer sealing collar achieves fluid-tight sealin

See how positioning ribs and arc surfaces in a radiating cavity prevent PTC heating elements fr

See how a 48 V PTC heater enables four times longer operation without depleting battery capacit

See how unidirectional refrigerant flow through independent hose pathways removes residual oil

See how a partition wall isolates the sub-engine intake from waste heat, drawing air from a sep

See how a two-layer elastic packing with closed-cell and open-cell foam absorbs evaporator vibr

See how a diverging duct extension redirects ceiling-mounted refrigeration discharge to distrib

See how a bypass duct introduces an angled flow jet into the main duct to control outlet air di

See how dynamic coolant flow-rate adjustment prevents heat dissipation capacity loss when one d

See how a dual-evaporator system with damper control generates a strong air curtain at the door

See how a heat-conductive compound fills the U-shaped recess gap to improve PTC heating element

See how a vehicle A/C charging station reuses existing service pressure sensors to detect and p

See how a filter module uses two sealing elements—one for tolerance compensation and vibration

See how catalytic coating on the hot side of an aircraft ECS heat exchanger removes ozone and h

See how humidity feedback and parameter adjustment prevent condensation on thermoelectric devic

See how estimated temperature from power consumption protects HVAC units when electric heater s

See how a common base plate with internal flow channels merges evaporator and condenser regions

See how axial and radial sealing elements on a latching frame compensate for component toleranc

See how a magnetic coupling arrangement enables a common motor to drive both gas and liquid con

See how superheat monitoring and compensatory compressor or fan speed adjustment maintain refri

See how an inverter-integrated electric compressor estimates discharge and motor coil temperatu

See how external male/female flanges fasten actuators to HVAC housings without through-openings

See how dynamic compressor speed control responds to pressure ratio across inlet and outlet to

See how a centralized energy module integrates cooling, heating, and battery thermal circuits t

See how a meshing locking element secures detachable connecting branches to heat exchanger hous

See how a tank-integrated heat exchanger with U-shaped fluid path and internal burner reduces a

See how a dual-piston clamping adapter uses control and refrigerant pressure to maintain secure

See how switchable heat-medium circulation between outside-air and refrigerant heat exchangers

See how separating MOSFETs from the PCB using electrical link members and U-shaped slits preven

See how a transport refrigeration unit switches between cargo and supply temperature control mo

See how relocating the outdoor air filter inside the cab box simplifies maintenance, prevents m

See how dynamic hot air path opening control prevents PTC heater overheating in electric vehicl

See how flow pipes serve as both fluid conduits and heat transfer surfaces, eliminating fins to

See how an integrally injection-molded plastic frame eliminates clip connections in PTC heaters

See how periodic RPM cycling between low-speed and minimum lubrication demand reduces compresso

See how end-face electrical contact on PTC elements exposes main surfaces for direct fluid heat

See how a contacting track on an insulating board simplifies lateral electrical connection of P

See how intermittent valve pulsing in a dual-loop refrigerant system prevents compressor shutdo

See how predictive PWM duty ratio correction eliminates PTC heater temperature lag during blowe

See how a bypass branch around the sub-cooling exchanger preserves heat pump energy supply whil

See how twin-sheet thermoforming bonds flame retardant thermoplastic olefin sheets to create ho

See how a light absorption chamber behind ventilation slats traps reflected light rays to elimi

Dual blowers and valve-controlled flow paths balance fresh and recirculated cab air under CAT 4 filtration and legal airflow limits.

Switchable coolant routing links the engine, e-powertrain, battery, and heat pump to cut heat redundancy and lower vehicle energy use.

Light diffusion, straightening, and reflection improve catalyst illumination at shorter spacing, boosting vehicle HVAC air purification.

A branched refrigerant loop and associated heat exchanger cool vehicle electronics in extreme heat without adding bulky radiators or load.

Recirculated heated air from a bypassed tangential-flow module melts evaporator frost while maintaining airflow in electric and hybrid vehicles.

Ionized cabin air is steered by adjustable electric or magnetic fields to improve airflow direction and ventilation comfort without lamellas.

A UV lamp module in the vehicle HVAC return air path treats all recirculated air to reduce bacteria, viruses, and mold.

Sensor-driven coolant reversal balances temperatures across vehicle heat sources, improving downstream cooling without larger parallel loops.

By placing the compressor between the battery and power unit, this layout redirects front-rear collision loads and simplifies vehicle piping.

A recessed HVAC unit in the composite cab floor improves airflow distribution, lowers cab height, and simplifies service through a removable seat pan.

Seat-side ducts and blowout ports target the thighs to cut heat and pressure loss while reducing EV cabin heating energy.

A segregated heat-exchange passage cools the blower LPM heat sink across HVAC zones while limiting cross-flow and pressure drop.

Compressor-generated heat is routed through a shared condenser and chiller to warm the cabin, reducing electric heater size, cost, and packaging.

Multiple mobile devices can control HVAC, doors, windows, and media through one ECU with tiered access that simplifies shared in-cabin control.

Dual adsorption units alternate with heater regeneration to remove moisture and CO2, cutting HVAC energy use while preventing fogging.

Negative ions mixed into filtered aircraft cabin air help neutralize pathogens and toxic gases beyond HEPA-only filtration.

Heat pipes linked to a cold reservoir condense air humidity into collected water while lowering energy use and sustaining water output.

Integrated heater mounting and adsorption cartridges guide cabin airflow to cut fogging, CO2 buildup, and HVAC power use.

Inclined and recessed toothed sectors with a cam track enable sequential flap control while avoiding interference and added axial height.

Air-conditioner airflow and a rotating fan boost solid fragrance diffusion while avoiding liquid spills, flammability, and disposable waste.

Negative ions mixed with filtered cabin air help suppress microbes, reduce toxic gases, and improve aircraft cabin air quality.

Roof-separated air inlet and outlet paths with filtration keep brake dust and mud out while maintaining rail car ventilation.

A monitored pre-charge circuit raises DC bus voltage before AC coupling to curb inrush current, heat loss, and bulky resistor use.

Separate inflow faces and an integrated frame flow channel keep filtration running when snow or ice blocks the primary filter surface.

Stable DC conversion lets transport refrigeration compressors run reliably at low engine speed and from variable renewable power sources.

Motion-triggered sanitizer dispensing, HEPA filtration, UV light, and fogging reduce cross-contamination and disinfect vehicle air and surfaces.

Weather, traffic, and route data are used to forecast climate-control energy demand and warn when stored energy may not finish the trip.

Sensors trigger HVAC blower reversal to expel VOC- or particulate-laden cabin air, reducing chemical buildup and improving breathability.

A coupling-point refrigerant loop redirects flow from the heat exchanger to the compressor inlet, improving vehicle heating, cooling, and deicing.

Selective recirculation and extraction airflow paths improve EV and hybrid cabin comfort by recapturing heat or cold while maintaining cabin pressure.

By aligning the evaporator, condenser, and PTC parallel to the ground, this case cuts airflow resistance, shrinks HVAC packaging, and frees cabin space.

A branched EVI refrigerant path and associated heat exchanger remove heat from transport vehicle electronics without a larger radiator.

A compact connector with nested fluid control parts and non-overlapping sub-channels reduces leakage, saves space, and simplifies installation.

Series refrigerant flow reuses drive unit and air-conditioner heat to warm the battery, improving low-temperature charging and discharge efficiency.

A dual mechanical knob layout combines rotation and segmented press zones to deliver compact, low-cost cabin temperature and airflow control.

A connecting member with passages, valve chambers, and separated module placement cuts volume, stabilizes mass center, and avoids thermal interference.

An indexable connector and spring-loaded retainer let a vent mount rotate to fixed positions while securely trapping the air-vent louver.

Coordinated CS and DC valve opening improves intermediate-range control pressure adjustment in variable displacement compressors.

A controller closes the vehicle fresh-air intake door during rain or water loading to keep the cabin dry-zone protected.

A two-way vehicle-TCCS interface coordinates status and bidirectional power flow to keep refrigeration running during ignition-off and charging.

A cup-holder scent diffuser uses sealed replaceable cartridges and adjustable pump control to maintain uniform cabin fragrance with low leakage risk.

Infrared cameras track occupant temperature and clothing-related heat patterns to auto-adjust cabin climate without driver distraction.

A cross-flow fan with pivotable air guides evens airflow through a vehicle heat exchanger, improving cooling uniformity while reducing bulk.

A refrigerant heat exchanger and control valves stabilize evaporation at low ambient temperatures, improving EV cabin heating efficiency.

A detachable heating and controller module layout lowers fluid heater repair cost while preventing maintenance-induced deformation.

A conical inlet filter keeps cooling air flowing to roof environment sensors while blocking particles and moisture that cause overheating and damage.

Differently oriented linked vanes turn a slim vent register's wide air plume into a tighter, better aimed airflow stream.

Internal refrigerant channels remove housing through holes, suppress compressor noise leakage, and preserve heat pump performance.

A two-step vent insertion and rotation hides the flow housing behind the instrument panel, saving space and easing vehicle air vent service.

Selective valve routing links heating and chilling loops to vehicle coolant circuits for precise temperature control with fewer heat exchangers.