Air-Treating Devices TRIZ Cases

A raised muffler with its inlet above its outlet suppresses coolant pulsation while draining liquid to the condenser instead of back to the compressor.

Combining an undersized emissions-compliant main power source with secondary power lets a transport refrigeration system reach full cooling capacity.

A shared connector-cooling structure removes PCB control heat in vehicle auxiliary heaters without adding separate cooling hardware.

A sealed PTC heater uses conductive silicone and waterproof glue to improve EV defrosting efficiency, safety, and battery range.

An engine-driven generator powers a variable-speed compressor so in-transit refrigeration can run independently with lower energy use.

Multiple independently operated heating units let one vehicle heater deliver high output while maintaining precise low-heat control and adaptability.

Side-by-side cylindrical heating modules cut space use, head loss, and heating inertia for faster passenger-compartment heating.

Piezoelectric droplet generation inside a compact blower layout cools cabin air closer to passengers while saving installation space.

Coolant temperature is used to decide compressor startup, preventing negative suction pressure without adding a suction-side pressure sensor.

Two downstream temperature sensors replace costly humidity sensing to predict vehicle AC evaporator odor timing and improve sterilization control.

A battery-generator power split keeps cargo cooling stable while cutting diesel runtime, fuel use, noise, and emissions during low demand.

Front-seat control signals and a rear lock button let the driver manage rear AC settings and prevent passenger mal-operation without stopping.

An inverted valve core and protective cap keep brazing and threading debris off sealing surfaces, reducing leakage in AC charge valves.

A dehumidification line feeds refrigerant to the evaporator before the exterior heat exchanger, improving cabin drying while limiting frost.

An evacuable oil separator cleans refrigerant samples before gas analysis, reducing oil-driven faults and unstable readings in vehicle A/C service.

A toroidal motor and nested cylindrical heater focus airflow for rapid windshield defrost while keeping the dashboard blower compact.

A hybrid engine-generator-battery layout cuts idle fuel use in transport refrigeration while maintaining compressor and fan power.

Drain passages built into a partitioned heat exchanger core prevent air leakage between sections while clearing condensate to avoid buildup and freezing.

Recycled cryogen exhaust drives onboard power generation for reefer cooling, avoiding diesel refueling, noise, and emissions.

An overmolded seal on connector conductive tracks isolates the heater control PCB from dust, moisture, and heat inside the casing.

Printing barium titanate PTC resistors onto a substrate removes pellet and frame assembly, cutting heater rod cost and complexity.

A two-stage ceiling and sidewall chute layout keeps cooled air moving rearward while reducing loading damage, install time, and light blockage.

Switching valves route adsorption and condensation heat into the cabin loop, improving vehicle heating efficiency with simple mode changes.

Porous silica aerogel in the heater layer blocks heat flow into the cushion, improving seat heating efficiency and warm-up uniformity.

Temperature feedback keeps defrost active until the return air grid is ice-free, preventing airflow blockage and cargo repacking.

Separated duct flow paths and indoor heat exchangers recover thermal energy from discharged cabin air while maintaining vehicle ventilation.

A fan-driven pressure difference between desorber and condenser improves automotive absorption cooling while reducing system size and cost.

Coupled refrigerant and temperature-control circuits let EV and hybrid batteries, components, and the cabin be heated and cooled independently.

A multi-mode truck cab heat pump adds auxiliary heating to cut battery demand and reduce engine idling during parked heating and cooling.

Switching refrigerant flow to bypass the receiver tank cuts pressure loss, preserves heat exchange, and improves heat pump defrosting.

A dual-condenser refrigerant loop enables vehicle heating and cooling even when engine cooling water is unavailable, improving cabin comfort.

Coolant flow is reduced when its temperature falls below refrigerant temperature, limiting unwanted heat exchange and improving hybrid vehicle cabin heating.

A limited compressor speed mode delays return to normal operation, suppressing hunting oscillation and low-temperature noise in heat pumps.

An 8-pass header-and-baffle layout spreads refrigerant evenly across the evaporator to cut temperature variation and improve cabin air uniformity.

A solenoid bypass flap recirculates chilled air when bay doors open, preventing evaporator freezing and keeping food carts cold.

Temperature-dependent pressure thresholds let a heat pump detect refrigerant shortage accurately and protect compressor durability without losing low-temperature heating.

A tube-shaped collector and centered emitter create a uniform ionization field, improving particle capture by the cabin air filter.

An alternating magnetic field heats fluid through an inductor while turbulent flow boosts heat transfer and removes electrical isolation needs.

A temperature-threshold PID loop adjusts compressor speed only when evaporator changes are significant, reducing unnecessary power use.

A two-lever air vent linkage keeps front and rear vanes moving with the control direction, reducing driver distraction and easing adjustment.

Periodic ECU shutdown in non-running transport refrigeration modes cuts battery current draw while preserving engine checks and extending battery life.

Separate coolant and refrigerant circuits with CHCM valve control maintain cabin and engine heating while avoiding heat exchanger icing.

Multiple sealed heating elements guide fluid along both sides to boost heat transfer while improving high-voltage safety in vehicle heaters.

Stored coolant pressure keeps the four-way valve switching after compressor stop, preventing mid-position stagnation in vehicular heating and cooling.

Closed-loop stage control matches refrigeration load to available engine power, preventing stall while using capacity more effectively.

Predictive heating control limits outdoor heat exchanger frosting while auxiliary heating maintains required cabin heat with low power impact.

Heat-shrink plastic closures seal heater casing ends around electrical contacts, cutting assembly complexity while maintaining fluid-tightness.

An injection-molded one-piece frame holds PTC heating elements directly, cutting part count, assembly time, and cost in vehicle auxiliary heaters.

During engine restart, the electric compressor runs briefly before the engine-driven unit to recover oil, protect lubrication, and sustain cooling.

Specific door support spacing around a groove lacking section prevents sliding-door rattle while preserving air conditioner case layout flexibility.