Mechanical Apparatus TRIZ Cases

Fan-based monitoring keeps supply airflow above exhaust airflow to prevent fireplace smoke backflow without external pressure sensors.

Variable compressor speed and liquid flow valves balance refrigerant flow across zones to meet different setpoints with better energy use.

Solar-powered fans and environmental control improve attic airflow on low-pitch hip roofs while avoiding grid wiring and preserving roof aesthetics.

Supply and return air sensing adjusts evaporator fan speed and compressor power to hold chilled cargo temperature with lower energy use.

An active controller runs the HVAC blower from air quality and runtime feedback to clean indoor air without unnecessary energy use.

Sensors and controllable vents redirect cooling gas to hotter critical components, preventing overheating when server room heat loads are uneven.

Heat-absorption feedback adjusts oxygen supply and exhaust gas recirculation to stabilize oxygen-fired boiler combustion in retrofitted air-fired units.

Geometric indicator blocks bind to HVAC component comfort data to auto-update building status displays without manual graphics rework.

Expanded enthalpy, temperature split, and superheat tables guide refrigerant charge and airflow correction in hot, dry cooling conditions.

Processor-controlled expansion valves block liquid refrigerant migration during shutdown, protecting the compressor without extra solenoid valves.

Normalized energy dashboards compare sites with different equipment levels, helping analysts spot outliers and drill into HVAC and lighting issues.

A weighted rotary sensor keeps its airflow path aligned with gravity, preserving natural convection and accurate air pollution readings.

Occupancy-sensing LED tubes fit standard fluorescent fixtures and relay room status to lighting and HVAC controls to cut installation cost and energy use.

Pre-indexed shortcut metadata lets users launch local programs by name, avoiding exact file matches and reducing search time.

A spring-biased damper blocks outlet backflow when the unit is off and maintains positive pressure with controlled duct and room air intake.

Internal air handling units recirculate and filter reactor habitability air without external ductwork, cutting contamination paths and system complexity.

A gravity-actuated internal lever locks or unlocks tong arms by orientation, keeping storage compact and operation reliable around grease or sauce.

Power line communication lets unitary air conditioners share token-based run time, cutting peak demand charges while maintaining room cooling.

After compressor shutdown, blower runtime is adjusted to room humidity to limit re-evaporation, improve dehumidification, and cut energy use.

A distributed HVAC data bus shares configuration and status data to improve diagnostics, remote monitoring, installation flexibility, and control.

Multiple local condenser-evaporator units cut liquid refrigerant inventory and piping while maintaining refrigeration capacity.

A recirculating pump, check valve, and sensor-based control keep coil water turbulent at low chilled-water flow, improving cooling efficiency.

A closed ring of air supply units and guide elements stabilizes downward laminar flow, blocks pollutant ingress, and reduces draughts.

Intermediate-pressure refrigerant injection uses a third heat exchanger and valve control to lower compressor discharge temperature while sustaining capacity.

A configuration tool auto-generates and uploads wall module screens from minimal inputs, cutting setup time for multi-tenant access control.

An evacuation line and valve route refrigerant from the evaporator and receiver to the accumulator for cleaner cooling-to-heating transitions.

Real-time utility messages on a thermostat display help users respond to peak demand, pricing tiers, and energy-saving prompts.

Network-updatable HVAC control and measurement settings help maintain energy-saving operation as laws and regulations change.

A mesoporous TiO2 coating uses UV and ozone together to continuously oxidize gaseous pollutants while decomposing excess ozone in situ.

Nickel-chromium electrodes and PWM high-voltage pulses stabilize corona discharge, improving air sterilization while limiting burn risk and ozone.

Charged water mist is routed through a feed conduit from an isolated atomizing unit, preserving airflow while maintaining room deodorization.

Electronic expansion valve control holds superheat near 5 K and compressor temperature within range to cut heat loss and extend A/C compressor life.

A pre-fastened ice chute and heated mullion keep door-dispensed ice aligned, dry, and stable in a fresh food compartment.

Separate dehumidifying and purifying air paths let one blower maintain airflow while reducing pressure load in humid conditions.

A second compressor regulates economizer pressure and flow independently, improving vapor compression capacity control and efficiency.

By guiding radio waves through the ventilation duct, remote air-handling components can communicate across walls and floors without central control.

Angled reflective extrusions and diffusive lenses improve shelf lighting uniformity while cutting energy use, heat, and fixture visibility.

Expansion valve control limits refrigerant pressure and balances flow, allowing larger height differences without capacity loss or valve failure.

Integrated rotary switches and a display let ventilation volume flow controllers set parameters directly without separate panels or potentiometers.

Partitions create reduced-volume cooling zones that stop warm-air dilution, cut cooling electricity use, and prevent thermal failures.

Liquid refrigerant is injected through a venturi-assisted return line to desuperheat high-pressure flow and reduce thermal stress on compressors and gas coolers.

A taller filter section and movable backflow trap cut airflow resistance, block reverse flow at low pressure, and improve room air distribution.

Low-pressure electric particle or cell gas filters clean induced secondary air without raising airflow resistance or heating and cooling energy use.

Dew-point-based evaporator control reduces compressor runtime and fuel use while maintaining cabin comfort and windshield defogging.

Printed conductive tracks and miniaturized LEDs replace shelf cables, reducing shadows, bacteria buildup, and assembly complexity.

Separate storage and injection compartments simplify disinfectant and aroma dosing in line systems while improving pressure control and application precision.

Transition valve positions enable 0-100% refrigerant flow to each evaporator, improving temperature control and refrigerator energy efficiency.

Gradual freezing on chilled fingers in a fresh-food compartment lets gas escape, producing clear ice without freezer-based opacity.

Consecutive motion checks within a time window help lights ignore passersby, cut unnecessary activation, and save power.