Mechanical Apparatus TRIZ Cases

Integrated air quality sensors in LED lighting enable real-time monitoring, alerts, and lower-cost deployment than standalone detectors.

Occupancy-sensing LED tubes retrofit standard fluorescent fixtures to trigger lighting and HVAC control with lower installation cost.

Fan-only cooling after compressor shutoff uses prior temperature and humidity data to cut AC energy use without sacrificing comfort.

Humidity sensors vary dehumidifier airflow to preserve evaporator residence time, improving moisture removal and enabling remote monitoring.

Ambient-light sensing activates localized cup holder lighting only in dark seating conditions, improving access while limiting occupant distraction.

Compressed-air dehumidification stabilizes microbicidal vapor delivery while limiting humidity, corrosion risk, and maintenance cost.

Using indoor fan airflow to move filter dust cuts the need for a vacuum suction fan, reducing air conditioner size and cost.

A rechargeable battery bridges HVAC mode transitions while power stealing is briefly suspended, avoiding relay dropout without a common wire.

Density-driven branch channels place tempered fluid into matching tank layers with laminar flow, reducing mixing, energy loss, and maintenance complexity.

ON/OFF signal duration is used to estimate air-conditioning load and vary compressor frequency for better comfort and energy savings.

Offset radial axle regions let small cam lobes articulate in 3D, reducing interference and expanding cam range without larger size.

Differential pressure tracking replaces fixed filter schedules, helping HVAC controllers issue timely change alerts and avoid efficiency loss.

A standardized platform links building, security, HVAC, and safety domains to centralize data, cut energy waste, and improve decisions.

A regression model predicts when a zone will reach target temperature, enabling HVAC preheating that cuts energy waste and discomfort.

Active injector and pressure regulator modes improve refrigerant diffusion in the evaporator for steadier temperature control and dehumidification.

A sensing bypass valve adjusts heater bypass flow from inlet and outlet changes to control temperature rise, improve heat transfer, and reduce corrosion.

Motor load current reveals blockage extent and location in aircraft air circuits without direct airflow sensors or circuit access.

Selective solenoid and liquid injection control route refrigerant through an economizer to improve heating capacity and avoid compressor slugging.

Alternating defrost and chill cycles keep the non-defrosted barrel frozen, preventing suction-pressure warming in frozen beverage dispensers.

Manual temperature changes are learned into automatic setpoints, avoiding clock setup while adapting to changing user habits.

User-set energy and runtime are converted into operating parameters, giving inverter air-conditioners precise cost and power control.

Enclosed cable recesses and guide slots let installers reposition the control box while keeping valve and sensor wiring protected.

A deflectable one-piece polymer ratchet holds a leg rest in multiple positions while cutting parts, assembly effort, and ratcheting noise.

A rotatable outlet connection adjusts gap and flow direction so warm air reaches deep into rooms while cold air travels along the ceiling.

Dual capillary paths and control valves balance hot-line defogging with load-adaptive coolant circulation for better cooling efficiency.

Outside weather data and thermal mass modeling let a single-sensor HVAC controller detect efficiency changes and shift loads away from peak hours.

Pressurized CO2 drives air scrubbing and heat exchange to keep a refuge chamber breathable, cooler, and independent of external power.

A capillary tube built into the receiver meters liquid refrigerant more precisely, improving compressor capacity control and discharge temperature management.

Suction superheat tracking detects compressor floodback early, enabling speed and expansion valve adjustments to prevent component damage.

Touch-sensitive HVAC display loci combine fixed-segment and dot-matrix views to show more parameters without increasing user confusion.

A collapsible plastic filter frame replaces bulky V-Bank units to maintain PRRSV filtration, cut installation effort, and save wall space.

Ambient temperature and humidity sensing adjusts coolant flow to avoid condensation near electronic equipment while maintaining cooling.

Correlation tables from dynamometer testing translate universal airflow commands into motor-specific values for reliable HVAC control.

A collapsible rectangular filter assembly replaces bulky V-Bank layouts to block PRRSV while cutting installation time and space use.

A phased linear actuator and sequence plate let a lifting recliner reach closed, reclined, and seat-lift positions with one motor and no wall interference.

A heat medium relay circuit keeps refrigerant out of indoor spaces, shortens circulation paths, and allows indoor unit maintenance without shutdown.

A PLC and VFD retrofit cuts constant-volume HVAC fan energy by matching ventilation and economizer control to occupancy and temperature.

A circularly symmetric LED lens spreads light uniformly across close rectangular targets, reducing caustics, lens size, and LED count.

A dual-panel filter and auxiliary top opening recover airflow over a diagonal heat exchanger, improving server room cooling uniformity.

Serial cooling stages and economizer pump mode cut data center cooling energy while maintaining capacity and reducing pressure losses.

Segmented corona ionization and staged filters remove particles and VOCs while limiting ozone and extending filter life.

Camera-based motion, people, and face detection are fused to avoid false vacancy readings and improve building occupancy sensing.

Startup initializes active indoor expansion valves first, cutting cooling delay in multi-room AC systems while protecting the compressor.

Movable eccentric vibration modules on a suspended retrofit frame deliver controllable under-mattress vibration with simpler installation and lower complexity.

Peak-rate power signals and occupancy sensing let the air conditioner trim airflow and cut energy costs without sacrificing comfort.

Movable vibration modules on bed-mounted tracks deliver controllable under-mattress vibration with simpler retrofit installation and lower system complexity.

Sensors cycle heating and exhaust by tracking temperature rise and humidity, drying water-damaged rooms faster with less energy and damage.

A tilting valve with line contact and center-of-gravity control keeps roof ventilation self-regulating across different roof pitches.

Measures intake-to-outlet air temperature difference after startup to flag HVAC inefficiency from issues like dirty filters or low refrigerant.