Air-Treating Devices TRIZ Cases

A low-cost vehicle HVAC layout uses thermal expansion valves, an intermediate heat exchanger, and receiver placement to keep heating and cooling modes effective.

Monitors cabin temperature and CO2 through an OBD2 interface, then sends alerts and can lower windows when conditions turn dangerous.

Miniature ceramic igniters heat intake air to red heat within seconds, then switch off as engine coolant takes over cabin heating.

Wave-shaped undulations on a resilient damper seal lip cut closing noise from pressure fluctuations while preserving tight HVAC sealing.

Uneven fan airflow across the exterior heat exchanger delays outlet-side frosting, preserving vehicle heating capacity and comfort.

Periodic ECU wake-up lets a transport refrigeration controller read engine sensors without continuous engine operation, cutting fuel use and battery drain.

A shorter liquid refrigerant line and ejector placement near the evaporator limit heat pickup and preserve evaporator cooling performance.

Secondary coolant loops and rear heat exchangers enable targeted cabin spot cooling with less ductwork and lower energy loss.

Single-direction refrigerant pipes and simple valves replace multi-way distributors, cutting vehicle HVAC loop cost while preserving reversible modes.

Dew-point-based refrigerant bypass stops unnecessary evaporator heat exchange during vehicle heating, reducing energy waste and frost risk.

A unified evaporator-condenser layout delivers both cabin cooling and heating while cutting system cost, complexity, and energy use.

A nearby HVAC duct outlet creates negative pressure to pull hot air from an under-seat electric component and prevent heat buildup.

An airflow direction plate with angled vents and acoustic material cuts fan noise while keeping vehicle HVAC ducts compact and airflow balanced.

An injection circuit and discharge-side heat exchanger raise refrigerant flow and suppress outdoor coil frost for steadier vehicle cabin heating.

An interior heat exchanger boosts evaporator enthalpy difference, enabling power saving even when subcooling heat radiation is restricted.

Parallel counterflow across first and second heat exchanger rows evens refrigerant distribution and delivers consistent cold air from all vents.

A ring magnetocaloric body with sector-to-sector fluid circulation boosts temperature lift without complex multistage cooling.

A subcooler placed below the evaporator uses condensed water to improve refrigerant subcooling while cutting HVAC component count and pressure loss.

A desiccant-filled cap dries incoming air during AC oil refill, preventing moisture contamination and corrosive acid formation.

Thermoelectric cooling, induction heating, and flexible dock connections let one galley cart serve hot and cold meals while tolerating turbulence.

Angled inlet and outlet axes plus a perpendicular fan impeller cut low-frequency noise and direct sound radiation in vehicle HVAC housings.

An adsorbent bed stores and releases thermal energy to heat or cool EV cabins with far less battery draw than resistive or compressor-based systems.

Roof cooling and floor air ducts spread heated or cooled air evenly in retrofit delivery vans, cutting assembly effort and temperature lag.

Intermittent CO2 filling from a conditioned intermediate container prevents liquid buildup in the line and improves charge accuracy.

Sensor feedback and inverter control keep compressor pressure and temperature within the safe envelope despite changing engine speeds.

Separating thermal contact at the heater center from electrical contact at the sides improves heat transfer, insulation, and voltage stability.

Gas injection and discharge-side heat exchange raise refrigerant flow and suppress outdoor heat-exchanger frost during vehicle heating.

A PCM-filled annular chamber and external ribs improve refrigerant sub-cooling in an automotive A/C condenser receiver.

Gas injection and water-mediated heat exchange raise heating capacity while suppressing outdoor heat exchanger frost and defrost power loss.

Cross-nested horizontal and vertical slats enable independent airflow adjustment while keeping a flush, homogeneous vent appearance.

By guiding intake air along the connecting passage wall toward the fan, this case cuts turbulence and noise without adding bell-mouth thickness.

Door vanes, rub strips, and recirculating plenums spread chilled air around galley carts to prevent hot spots while cutting airflow demand.

When low ambient temperatures cut evaporator refrigerant flow, condenser heat-loss control keeps EV battery cooling stable and limits cell temperature spread.

Gas injection with a discharge-side heat exchanger boosts cabin heating while suppressing outdoor heat exchanger frost and defrost power loss.

Heated air desorbs water from an adsorbing module, then cooling tempers the humidified airflow for faster humidity response and comfort.

A metal half-shell envelope around a plastic vehicle heater housing improves EMC, resists crash damage, and avoids all-aluminum complexity.

Variable reservoir pressure with rapid pressurization boosts cryogenic cooling on demand, cutting pull-down time and cryogen waste.

A coolant bypass lets vehicle HVAC switch around the thermoelectric device when engine heat is available, cutting wasted energy and extra components.

Integrated flow-guiding press-fit features position and seal nested heat exchanger housings while improving heat transfer and simplifying mounting.

Gravity-fed liquid collection inside the nebulizing chamber cuts dead volume, leaks, and complexity while maintaining stable mist output in vehicles.

A single-piece multi-turn RV furnace coil boosts heat transfer in tight space while cutting welds, labor, and manufacturing cost.

Waste heat and external heat sources drive HVAC and electrical output without engine idling, cutting fuel use and emissions.

Thermoelectric cooling and heat exchange keep a vehicle cabin comfortable without engine idling, cutting fuel use, noise, and battery drain.

A concealed blade ring and rear actuating mechanism improve vehicle air nozzle styling while enabling adjustable, diffuse airflow.

Two-shot molding joins a hard control element and soft plain bearing to cut vent assembly parts while preserving smooth sliding and feel.

A liquid heat-transfer loop links the refrigerated compartment to the cabin, cutting energy loss and cooling the driver area without engine power.

A bypass fresh-air duct keeps cabin ventilation running when the vehicle air conditioner is stopped to prevent flammable refrigerant leakage.

An auxiliary heat exchanger mixes heat media from multiple branches to equalize indoor-unit inlet temperatures, cut energy use, and improve comfort.

By placing cool storage containers in selected tube clearances and fins in others, this evaporator stores cold without sacrificing airflow or cooling.

Sensor-driven HVAC control clears windshield fog while balancing occupant comfort, energy use, and engine startup in hybrid vehicles.

Heat exchangers in outer walls transfer waste heat from exhaust air to interior surfaces, reducing energy consumption and improving passenger comfort.

An integrated thermal management module merges battery cooling and indoor heating circuits into a single compact unit.

A vehicle-mounted temperature controller merges separate heat circuits to optimize energy use during engine warming.

HVAC bypass opening eliminates mixing chamber energy losses by routing separate air streams directly to vehicle outlets.

A control device generates interrupt commands to modulate electric heating power via pulse-width modulation.

Modulating the water valve opening amount reduces compressor load and fuel consumption while maintaining reliable cabin temperature control.

A temperature regulator maintains circuit board thermal stability before vehicle startup.

A vehicle air register assembly uses pivotal vane retainers to adjust airflow direction within the passenger cabin.

GPS-linked transport refrigeration systems automatically adjust engine RPM and emission controls based on geographic location to comply with local regulations.

A vehicle air conditioner control method adjusts compressor discharge capacity to stabilize evaporator temperature.

An intermediary stopper and soft member protect the ball joint from detachment forces, stabilizing pivoting manipulability in vehicle vents.

A portable monitoring system predicts interior vehicle temperatures using regression algorithms and environmental data.

An adjustable deflection element in a vehicle water tank separates water droplets while reducing airflow resistance and energy consumption.

A controller adjusts evaporator fan speed based on fresh air damper position to maintain efficient airflow in transport vehicles.

Deceleration and continuation controls manage rotor frequency to discharge intermediate pressure fluid, preventing reverse rotation recurrence.

Segmenting the filter into specialized layers resolves the trade-off between cleaning effectiveness for modern contaminants and throughflow resistance.

A vehicle thermal management system uses a chiller with an electronic expansion valve to regulate coolant flow.

Dynamic fan speed control reduces power consumption and noise by adjusting airflow to match static pressure and compressor discharge conditions.

A vehicle air-conditioning control system estimates clothing amount from surface temperatures to adjust climate settings.

A controller adjusts battery charge and discharge rates based on thermal exchange capacity to prevent driveline disturbances.

A capacitive touch control dial uses segmented sensors to detect finger motions and adjust vehicle settings via a central display.

A moving body uses a control unit to activate heating units for sensor components when connected to an external power supply.

A divided coolant circuit circulates fluid in parallel branches to cool batteries and electric machines simultaneously.

A rotary lever assembly uses a radially flexible tongue to press against the bearing pin and eliminate radial play.

A vehicle air conditioner seal uses a notch to stop deformation under high water pressure.

Plate-shaped housing integrates fan and heat exchanger units to minimize profile height while maintaining cooling capacity.

A heating ventilation and air-conditioning assembly features a localized protection section made of heat-resistant material to shield the housing from thermal damage.

Integrating high energy visible light sources into vehicle interiors reduces bacterial loads while managing system complexity and energy consumption.

Harnessing turbine exhaust waste heat via a heat exchanger warms vehicle cabs, reducing battery weight and engine idling pollution.

A motor vehicle water tank design directs cabin air downstream of the drain to mix with fresh intake, reducing droplet absorption.

An inclined air supply nozzle directs fluid flow as a wall jet toward the trailer ceiling using the Coanda effect.

Segmented water box channels fresh air through a circulation duct to the passenger compartment, reducing head impact forces during frontal collisions.

A computer cooling assembly uses a heat transfer medium to move thermal energy from processing units to an integrated vehicle air conditioning loop.

Electric fan control in vehicle heat pumps adjusts airflow based on refrigerant pressure during cooling and external parameters during heating.

A centrifugal blower diaphragm with a sharp edge optimizes airflow through the bell mouth region to minimize acoustic disturbances.

Air inlet module channels air uniformly around the nebulizer nozzle, resolving uneven cooling and humidification in rear passenger areas.

Airflow-guiding elements in a vehicle heating unit equalize radial fan velocity distribution, ensuring uniform heat transfer and rapid cabin warming.

Thermoelectric elements supplement cabin heating, maintaining cooling water temperature limits to improve fuel economy during initial engine starts.

Controller switches to power saving mode when thermal load exceeds capacity, reducing energy waste while maintaining comfort.

A coolant circuit stores waste motor heat in an accumulator to preheat the battery, eliminating cold start delays.

A motor driving device combines feedback voltage with a constant current to determine the operational state of an air-conditioning compressor.

A single motor rotates a flap-based air flow distribution mechanism to direct conditioned air, reducing device complexity and component count.

HVAC system circulates heated air through ducts to deactivate pathogens, eliminating manual chemical application and uneven coverage.

A vehicle refrigerating apparatus segments power supply into low-voltage and high-voltage batteries to drive loads independently.

Sub-ambient pressure treatment re-expands flattened foam cells to restore structural integrity and eliminate surface porosity defects.

A vehicle air-conditioning auxiliary heater uses a dynamic opening-and-closing portion to regulate airflow paths through the outflow surface.

Skew partition and drum fan reduce device bulk while maintaining homogeneous temperature distribution across passenger zones.

An air suction part captures airflow deflected by a rear panel to cool a vehicle-mounted battery without introducing cabin noise.