Air-Treating Devices TRIZ Cases

See how a louver with high-rigidity front and flexible rear regions resolves bending under ther

See how a centrifugal compressor with reversible refrigerant loops reduces noise and vibration

See how merging valve, liquid storage, and plate heat exchanger into one component reduces spac

See how a compact thermal module integrates heating and cooling into motorcycle luggage mounts

See how a graphical interface displays operating parameters for each trailer compartment, enabl

See how concavely curved edge diffusers disperse narrow air jets into a diffused ambient zone,

See how an integrated component merges connection and liquid storage portions with independent

See how non-parallel carriage guides enable cyclic elastocaloric element deformation for indire

See how alternating dual electron accelerators with curved ducts enable uninterrupted air purif

See how flow-rate regulation and expansion-valve control maintain condenser pressure above satu

See how a power converter with accumulation choke, PWM rectifier, and frequency inverter enable

See how a partition groove and U-turn trajectory improve heat exchange uniformity while reducin

See how a refrigeration system with integrated heat sink uses refrigerant diversion to cool ele

See how a Peltier-based seat conditioning system adjusts airflow paths and power based on occup

See how a slidable temperature sensor receptacle with support projection maintains sealed conne

See how a gas injection device integrates battery, motor, and cabin cooling into one refrigeran

See how staggered mounting of compressor and flow channel plates in different orientations redu

See how a ternary HFO blend replaces R404A with GWP ≤125 while maintaining COP and 85%+ refrige

See how LiDAR cargo load detection adjusts refrigeration capacity dynamically to prevent temper

See how a single heat-exchanger module handles refrigerant-coolant and refrigerant-refrigerant

See how a dry defrosting mode uses wind speed regulation to evaporate frost from the outside ai

See how an HVAC sterilization unit uses LED irradiation and curved reflective surfaces to inact

See how an integrated valve module merges switch valves, expansion valves, and flow channels on

See how positioning thermal sensors on a circuit board thermally connected to the fluid chamber

See how a segmented base and flow-passage design with limiting structures simplifies complex pi

See how superimposing three-phase high-frequency AC and two-phase DC in stator windings improve

See how a drainage container with angled inlet-outlet redirects airflow upward to separate wate

See how an integrated heater and heat exchanger reduce component count in electric vehicle heat

See how an integrated sealing element with expansion function combines refrigerant and coolant

See how combined expansion valve control uses downstream refrigerant measurements to maintain s

See how back-EMF voltage detection enables dynamic condenser fan control in transport refrigera

See how asymmetric heat exchanger positioning reduces thermal interference in compact refrigera

See how predictive battery-level control and route-aware engine operation reduce fuel use in tr

See how a replaceable adsorbent granulate filter with thermal regeneration removes NOx from veh

See how dual defrosting modes—heat absorption and hot gas—enable rapid, even frost removal from

See how joint control of EV charging and HVAC uses preliminary action and dynamic scheduling to

See how a rotatable ball valve with multiple outlet holes independently regulates refrigerant f

See how merging pump and heater into one high voltage assembly reduces wiring complexity and we

See how a combined floor fitting with dual connection spigots and a wider drain channel consoli

See how a curved rod guide unit coordinates knob and wing movement without cutting the main win

See how a power controller cools reefer containers below set temperature when surplus energy is

See how a dual-outlet gasper directs cooling airflow to passengers while forming an air curtain

See how staged compressor warmup monitors discharge temperature through unloaded operation to p

See how gradual throttle valve aperture adjustment during heat pump mode transitions eliminates

See how nested resonator chambers with tunable necks absorb low-frequency HVAC noise in rail ve

See how segmenting a refrigerant circuit with two condensers in series or parallel enables simu

See how real-time VFD input adjustment using machine learning optimizes compression efficiency

See how integrating air conditioning components into a modular heat pump with standardized heat

See how integrated load cells and accelerometers enable self-weighing and tilt detection in por

See how mean kinetic temperature control maintains cargo quality while reducing cooling intensi

Intermittent clutch grounding lets the compressor purge pooled refrigerant before normal A/C startup, reducing slugging, noise, and stress.

Gravity-fed water and evaporative cooling keep a micro camper comfortable while cutting power use and extending battery life.

An integrated blower, motor, and control housing removes wasted space and external plugs for more compact vehicle heater installation.

Uneven spacing around a horizontal flap support is offset by a smaller nearby vertical flap, improving cool-air exposure and limiting condensation.

By coupling the auxiliary heater behind the main heater, all airflow is heated sequentially to reduce temperature deviation, weight, and assembly complexity.

A sealed movable heat sink cools the power switch while blocking moisture and contamination in a vehicle electrical heater.

A probe placed in the coldest intermediate water passage detects brief subfreezing dips without forcing premature compressor shutdown.

An extruded heater profile boosts transverse-flow heat transfer while sealing PTC elements against corrosion and cutting assembly cost.

Fan-speed and fluid-flow control maintain positive cargo temperatures in refrigerated truck chambers while extending heating autonomy.

An overpressure zone and throttle keep R744 refrigerant out of dry ice formation, speeding air conditioner servicing and discharge.

Throttle and temperature sensing reduce compressor load during acceleration, improving fuel use while keeping cabin cooling stable.

Thermal breaks, air ducts, and insulated dividers let one vending cabinet hold frozen, chilled, and ambient products with a single refrigeration unit.

Scheduled fluid flushing clears microbial growth and debris from AC condensate drain lines to prevent overflow and avoid manual cleaning.

Pressurized combustion air lets a diesel refrigeration drive maintain cooling with lower fuel use, lower emissions, and a smaller engine.

A refrigerant evaporator cools supercharged intake air below ambient without cutting charge pressure, reducing knock, thermal load, and NOx.

By integrating the chiller and expansion device at the condenser, this vehicle AC layout cuts refrigerant charge, packaging space, noise, and cabin exposure.

Conditioned cabin air is routed through dedicated exhaust ports and indoor heat exchangers to recover heat during vehicle ventilation.

Bodily-response sensing drives a discomfort index that adjusts vehicle HVAC temperature, humidity, airflow, and wind direction for personalized comfort.

An integrated coolant and PTC heater speeds diesel cold-start cabin heating while improving heat exchange, packaging efficiency, and overheating control.

A split grid of housing struts and heating-block struts eases PTC heater assembly while compensating for tolerances and thermal expansion.

Stored battery heat from vehicle charging is routed through coolant and refrigerant loops to warm the cabin in cold electric driving.

Partition walls and overlapping vent wings improve duct sealing while reducing air leakage, pressure buildup, and whistling noise.

Solar panels, battery storage, and roof deicing features keep truck cabs comfortable without engine idling or manual snow removal.

By reducing airflow from selected cabin outlets during engine stop, this case extends cooling comfort and avoids a second compressor.

Sealed heater end sections and insulated supports improve breakdown voltage, vibration stability, and temperature control in vehicle heaters.

Alternating desiccant-coated heat exchangers dry cabin air and regenerate with engine heat, separating humidity control from overcooling.

GPS-triggered pre-trip inspections automate generator set testing in defined areas while tracking location and inspection status.

Reused cryogen exhaust gas generates onboard electricity for reefer cooling, avoiding fuel generators, refueling stops, and emissions.

A plastic lower housing and conductive cover improve EV water heater heat transfer while keeping the circulation chamber compact and tightly sealed.

Circumferential supporting points keep PTC elements spaced from the frame, extending creep path, improving high-current insulation, and easing assembly.

Dynamic current-limit resets during high-ambient pulldown help protect the compressor from overload without losing needed cooling.

Automatic VIN and diagnostic code retrieval replaces manual entry in refrigerant recovery service, cutting errors and service time.

Tapered ribs and a raised upper cover keep rain and debris out of vent pipes while maintaining gas exchange and reducing filter replacement needs.

Multiple fluid circuits and thermoelectric heat exchange help route battery and coolant heat for effective passenger cabin heating in vehicles.

A plastic base and conductive cover use a prestressed form-fit seal to keep vehicle heater housings light, leak-tight, and vibration-resistant.

Perpendicular plate supports and a PTC heat source improve vehicle air-heater miniaturization, heat dissipation, and overheating safety.

Temperature and humidity diagnosis reveals cooling-compartment leaks and insulation loss before they waste energy and weaken cooling.

Dual-channel heat exchangers and a heat pump recover component waste heat for cabin conditioning while reducing EV energy loss.

A raisable condenser lets a trailer ice plant clear highway overpasses in transit while restoring refrigerant backflow at the job site.

Grounded metallic heating ribs suppress EMI in high-voltage vehicle heaters without the airflow loss caused by shielding grids.

Using air as the refrigerant, this case shows how a turbocharger-driven reversed-Brayton cycle delivers cooling with low engine loss and no harmful refrigerants.

Phase change material manifolds store cooling while the engine runs, then keep cabin air comfortable after compressor shutdown.

A modular HVAC housing keeps air distribution unchanged while repositioning the heat exchanger to fit different vehicle installation spaces.

Rotating evaporator and condenser coils cut bulk and ducting while balancing weights and a rotary joint keep cooling stable.

An integrated receiver-subcooler scavenges waste heat for EV cabin heating while cutting plumbing complexity and electric heater demand.

Using vehicle liquid coolant with cascade thermoelectric cooling, this refrigerator cuts compressor weight, energy use, and maintenance.

Load-state pressure and temperature checks use existing AC sensors to flag refrigerant underfill or overfill and help protect the compressor.

By reducing first-exchanger heat exchange when icing risk is detected, stored heat can defrost the outdoor exchanger and sustain cabin heating.

Temperature-triggered bypass flow cools compressed process air in an aircraft air conditioning unit to maintain cooling capacity and protect components.

A selectable airflow path lets one HVAC unit with two blowers independently control front and rear cabin airflow while cutting extra rear HVAC hardware.

Restricting hydraulic flow raises fluid pressure for heat exchange, while engine exhaust and radiation heat the air stream without flames.

Soft-element joints between flat tube segments absorb thermal shear stress in thermoelectric heat exchangers without raising flow resistance.

Auxiliary power storage and climate control keep a vehicle compartment conditioned with the engine off, cutting idling fuel use and emissions.

Sensor-guided heating conditions refrigerant only when needed to keep pressure stable and improve A/C recharge accuracy.

Vertical air circulation and filtered recirculation keep particles from swirling up in storage chambers, improving clean-room conditions.

Variable engine speed matched to refrigeration load cuts fuel use, extends run time, and lowers out-of-fuel risk for reefer units.

A foamed polyolefin duct balances low weight, rigidity, and sound deadening to cut compressor and airflow noise in vehicle systems.

A plenum floor, adjustable outlets, and side ducts spread conditioned air evenly to avoid front overcooling and rear undercooling.

A reversible refrigerant valve and dual compressors enable compact engine-off cabin heating, cooling, and NBC air filtration.

A one-end mounted heating block simplifies vehicle HVAC electric heater assembly, adapts element length, and lowers electrical fault risk.

A PTFE-gasketed adapter replaces damaged non-serviceable R134a hose valves, stopping leaks without full hose replacement or system recharge.

A side access door and slide bracket let water and wood chip pans be removed laterally without disrupting vertical smoke flow.

Dynamic compressor setpoints use outside temperature, airflow mode, and blower settings to prevent evaporator icing without sacrificing A/C cooling.

Using the machine frame as a thermal mass, this cabin HVAC cuts bulk and maintenance while improving heating and cooling efficiency.

A tubular UV-activated photocatalyst purifier fits inside tight HVAC spaces, improving contaminant contact while limiting airflow resistance.

Hidden movable vanes and bulged guide surfaces split inlet air between two ducts for precise direction control with less visible dust buildup.

Insulated heater end sections and resistance-based temperature sensing enable safe, stable high-voltage fluid heating in vehicles.

Cabin heating switches between battery power, fuel cell power, and stack coolant waste heat to cut heater load and improve fuel efficiency.

Stacked heat-generating and heat-absorbing packs with fins improve Peltier heat transfer while cutting cooling system size and complexity.

Door and ambient-temperature sensing stops container refrigeration during cool-weather loading to cut fuel use and emissions.

Curved plenum airflow and dual rotating drums improve heating distribution and cooking throughput in compact spiral ovens.

A rod-shaped ceramic heater in the water flow cuts heater size and weight while improving hot-water heating and bubble removal.

Resonant chambers and porous absorbers inside the heat exchanger damp coolant pulsations, cutting HVAC noise, space, and cost.

Branch refrigerant flow and compressor speed control cool the vehicle battery while maintaining cabin vent temperature and air-conditioning capacity.

A gear cover shields the mix door drive from airflow and debris, cutting wind noise and flow resistance while protecting the evaporator during assembly.

A controller switches between cooling and economy modes using prior cycle times to cut transport refrigeration power while holding cargo temperature.

By forcing absorbent fluid through opposing exchange surfaces, this plate improves mixing, absorption yield, and compact vehicle AC design.

Small-volume refrigerant clusters with valves and pressure sensors limit leakage, detect leaks early, and reduce explosive atmosphere risk.

Guide slots in the filter frame cut installation force while keeping vehicle ventilation air filters aligned, sealed, and quieter.

An internal liquid-bath condenser guides cooking vapors through channels to cut room moisture and avoid bulky external exhaust units.

An in-line crusher fits inside crowded ice dispensers to deliver crushed or cubed ice without increasing machine height or footprint.

A battery management controller keeps vehicle HVAC running with the engine off while protecting starting power and reducing fuel use.

A speed difference at the lower diverting roller lets a cooker conveyor scrape off debris while repositioning food without raising belt and motor load.

Ambient-triggered coolant circulation protects parked EV battery packs from temperature-driven degradation while limiting energy use.

Wheel-driven generation powers trailer refrigeration, replacing a separate diesel engine to cut fuel use and air pollution.

A single ram air channel cools heat-loaded aircraft components and ventilates installation spaces while cutting weight and avoiding backflow.

A thermal conductor over an insulated drain pan spreads heater heat evenly, improving drainage, defrosting, and wall stability.

A modular insulated chamber inside trailers or sea containers stabilizes cargo temperature and adds tracking when refrigeration is unavailable.

A removable lid-mounted container keeps antibacterial agent separate from the filter during storage, preventing adsorption and simplifying replacement.

Controller-based quiet mode lowers fan and compressor speed under idle conditions to cut external HVAC noise while maintaining cabin temperature.

Preconditioned HVAC air feeds a thermoelectric container and seat ducts to shorten vehicle heating and cooling time while reducing energy loss.

A separate HVAC deflector simplifies air mixing and distribution in tight housing space while improving drainage and reducing part count.

A portable heat exchanger isolates steam or other hot sources from a high-pressure heating loop for safe temporary heating in tall buildings.

Temperature feedback raises compressor speed to cool the inverter, then stops operation before refrigerant pressure spikes or evaporator freezing.

A lowered drain passage guides intake water to the condensate outlet by gravity, preventing blower backflow with fewer parts.

A reversible thermoelectric module, fan, and ducts keep an automobile battery within range despite extreme ambient temperatures.

Residual heat from the primary heat exchanger is blown to the secondary side after burner stop to prevent freezing without added heaters.

A dual heat exchanger with variable airflow cools turbofan lubricating oil under peak loads while reducing drag, thrust loss, and excess volume.

Stored pre-shutdown compressor capacity and PI control prevent evaporator undershoot while speeding target temperature convergence.

A valve-controlled recirculation heat exchanger shifts cooling priority between aircraft galleys and the cabin, reducing oversized pack demand.

Multiple cabin sensors average local temperatures to regulate aircraft feed air more accurately and reduce passenger discomfort from hot and cold spots.

Synthetic jet cooling and bendable heat pipes improve heat removal from distributed sources while cutting fan noise, power use, and mounting limits.

Air-guiding elements even out radial fan velocity before the PTC heater, enabling faster and more uniform vehicle cabin heating.

A foldable partition and shaped lid let one molded pulp container hold multiple devices compactly while simplifying packing and absorbing shock.

A fuel cell APU powers a belt-driven truck cab AC compressor, cutting idle fuel use and emissions while maintaining rest-stop cooling.

Inclined heat exchangers in a flat modular vehicle HVAC layout cut mounting space and expand installation options without sacrificing airflow.

A metal-reinforced plastic lamella keeps air nozzle slats rigid under thermal load, preserving uniform air gaps and smooth adjustment.

A pressure regulator and bypass route equalize refrigerant flow between evaporators, preventing cold-zone warming during simultaneous cooling.

Integrated holding webs plastically fix conductor tracks and PTC elements, improving assembly accuracy and reliable electrical contact.

An external chamber condenses working fluid to limit heat transfer and gas pressure, extending calibration range while protecting the cooling unit.

Balancing process and ambient air flows cuts aircraft fuel burn while preserving cooling capacity and cabin comfort.

Stored cold in a phase-change thermal battery clears EV windows while avoiding battery drain from conventional air conditioning.

A split bulkhead keeps the lower panel fixed while the upper panel is removable, speeding trailer refrigeration unit maintenance access.

A marine propulsion engine directly drives the boat AC compressor, cutting generator weight, cost, and conversion losses while underway.

Refrigerant temperature or pressure differential triggers evaporator defrost only when frost buildup cuts heat transfer in vehicle load spaces.

Shield walls reposition the condensate drain to preserve gravity drainage while preventing blower air from bypassing the evaporator.

Manifold vacuum feedback disengages the A/C compressor under high engine load, then restores cooling and defrost when conditions ease.

A vortex cooler splits bleed air into hot and cold streams, maintaining aircraft cabin cooling when ram-air heat exchangers are limited.

Positioning frames preassemble contact plates and heating elements to simplify vehicle heater assembly while preserving insulation and heat transfer.

A bypass bleed-air line keeps cabin pressure and air quality stable when the main regulating valve jams or fails under thermal stress.

A shared evaporator and heating core in one housing enable front and rear temperature control while cutting line length, cost, and leak risk.

A refrigerant bypass and valve-switched exchanger lets one HVAC loop both heat and cool an EV battery pack with less bulk and complexity.

Automatic cooling fan reverse rotation clears debris from heat exchangers based on operating time or manual input, preserving cooling efficiency.

Recyclable adsorbent granules with manganese and zeolite cut NOx, VOCs, and bacteria in vehicle cabin air without frequent filter replacement.

A multi-piece flow manipulator absorbs fan-borne sound while limiting pressure loss in vehicle HVAC air distribution.

An adjustable base pan outlet and grooved air duct assembly fits varying roof thicknesses without foam sponge compression, cutting assembly effort and cost.

Internal flaps automate side and vertical airflow switching inside the duct, preserving vent styling while enabling circulation or diffusion.

Infrared sensors detect overheated seats and other cabin surfaces, enabling targeted airflow cooling and occupant alerts to reduce burn risk.

Overhead airflow aimed at the driver's seat stabilizes cab temperature during frequent delivery door openings with less complex ducting.

Placing sound absorbers in duct bend stagnation zones cuts high-frequency cabin noise without disrupting airflow or adding extra packaging space.

Video scene recognition coordinates cabin devices like AC, seat vibration, suspension, and fragrance to create immersive in-vehicle playback.

Parallel rotating valve planes with sector ring openings cut internal leakage and friction in vehicle temperature control flow routing.

Multiple refrigerant and coolant circuits with shared heat exchangers and valves balance battery, electric system, and cab temperatures with less complexity.

Sensor fusion estimates coolant heat uptake in electrified vehicles, enabling valve control that balances EDM, battery, and HVAC cooling.

Machine learning combines TCCS operating data with service records to warn of impending climate control failures before alarms occur.

AI-managed indoor EV charging groups synthetic fleets, automates vehicle handling, and raises utilization with more reliable charging.

Dual fresh and recirculated air inlets with separate filters and outlet doors improve HVAC airflow to second and third vehicle rows.

A shared drive unit rotates both up-down and right-left vent controls, saving installation space while keeping independent airflow adjustment.

Roof-mounted solar panels charge a battery bank to run truck cab HVAC during rest periods without engine idling, cutting fuel use and emissions.

Rails, safety latches, and liftable holders restrain wheeled carts in transit to limit vibration-driven displacement and collisions.

Conical connecting pieces and sealed receptacles guide air into the sensor with lower particle loss and more accurate air quality measurement.

Rotating stacked valve elements changes groove overlap to switch heat-transfer flow paths with higher flexibility and simpler thermal circuit control.

Automatic window and airflow control in a vehicle barrier door improves ventilation, comfort, visibility, and security without driver distraction.

Multiple heat exchangers and switched fluid flow improve vehicle cooling during rapid charging while limiting pressure drop and frontal area use.

Waste heat from cooled electrical components reheats dehumidified cabin air, cutting heating energy while improving humidity control and comfort.

Movable dividers, sensors, and fluid-flow actuators create separate vehicle compartment climates for precise storage of different items.

Armrest nozzles direct conditioned air to arms, knees, and chest, improving passenger comfort without separate under-seat units.

A monolithic shell-core heat exchanger uses a flexible diaphragm to absorb thermal cycling, prevent coolant leakage, and keep fluid paths sealed.

A bi-directional heat pump links HVAC and fuel cell cooling loops to prevent stack overheating and support cold starts in EVs.

Controlled fluid flow redirects motor waste heat to the storage pack, preserving battery capacity, range, and charging in cold vehicles.

A bypass path re-suctions warm air from unoccupied seats to improve vehicle HVAC heat-up speed and heating efficiency while limiting heat loss.

Independent fresh-air and bypass flaps compensate ram pressure, suppress bypass flow, and keep vehicle cabin HVAC quieter and efficient.

Preconditioning the EV cabin while plugged in and adjusting temperature during travel cuts climate-control battery drain without sacrificing comfort.

A split high- and low-flow cooling loop lets a fuel cell and traction motor share one circuit while matching different thermal loads.

Using the high-voltage battery for vehicle after-blow drying avoids 12V battery wear while timing blower activation from communication state and SOC.

Dynamic flow control and heat exchange balance battery warming with cabin heating, improving vehicle thermal efficiency during charging.

A switchable vehicle coolant flow path links a reserve tank only when triggered, limiting air bubbles and helping protect pump durability.

Cabin temperature guides whether ionized air is sent toward seats or the ceiling, improving ion delivery while limiting occupant discomfort.

Reversible airflow lets a heat pump deice an iced air-side heat exchanger while recovering rejected heat to cut EV heating power use.

A widening bypass channel between angled flat filter elements cuts pressure loss, installation space, energy use, and noise.

Stacked flexible flap layers resist warping from dust and moisture, preserving vehicle vent sealing while opening under pressure.

Air aspiration through the roof skin cools a wet-area environment sensor, simplifying sealing while keeping sensor temperature under control.

Ambient-temperature-controlled valves route heat and cold across dual EV cooling circuits to stabilize component and cabin temperatures with lower energy use.

Interior-mounted swappable battery packs keep refrigeration units powered during fast replacement, reducing downtime and preserving cargo cooling.

A partitioned dual-area airflow path uses one blower and shared outlet packaging to shrink vehicle HVAC size while improving heating and cooling.

Adaptive discharge-port control changes air temperature and direction from indoor-outdoor temperature difference to cool the cabin faster with less energy.

Triggered coolant release, frangible covers, vents, and heat shields isolate failing battery modules and limit thermal runaway propagation.

Coordinated front spoiler deployment and grille shutter opening improve cooling airflow while limiting drag and energy use.

Pre-acquired and updated in-vehicle set values keep each user's equipment preferences reproducible even when live value capture fails.

An inclined roof-mounted heat exchanger and pivoting filter frame improve tractor cabin cooling and simplify maintenance without major tractor changes.

A switchable secondary pressure stage boosts battery cooling at high ambient load by increasing refrigerant latent heat without constant dual-compressor use.

Firmly connected filter stages create one removable unit that speeds bitumen air filter replacement and avoids installation errors.

An extended shaft and gear coupling repairs weak heater door bore connections, restoring HVAC airflow without full heater box replacement.

A passive boost circuit lets one transport climate control power input adapt to 110V or 220V, reducing component variants and wiring complexity.

An eccentric coupling pin and resilient support enable play-free air-vent slat pivoting with wider tolerances, lower noise, and lower cost.

Temperature-triggered battery preheating and voltage control improve low-temperature charging efficiency while reducing fire risk.

A branched coolant line and valve recover waste or external heat at low temperatures, improving vehicle cabin heating while reducing cooling layout complexity.