Mechanical Apparatus TRIZ Cases

See how differential acceleration control and preliminary forward rotation prevent outdoor fan

See how a rotatable suction panel with guide surfaces, insertion protrusions, and supporting un

See how bypass pipe flow control maintains refrigerant circulation when outdoor heat exchanger

See how a separation assembly with filter diverts flash gas around the evaporator, ensuring liq

See how a microcontroller-based fresh air cooling system draws cool ambient air into buildings,

See how a control system recovers trapped refrigerant from heat exchangers by opening valves an

See how an HVAC controller combines rotatable dial and touch-screen inputs to navigate carousel

See how dual heating units with ambient temperature sensing prevent power overload and energy w

See how replaceable fabric banners with internal lighting eliminate projection equipment while

See how duty-controlled switching valves manage multiple refrigerant paths to prevent drift and

See how a controller bridges legacy and communicating HVAC equipment using target-time control

See how correlation coefficients replace gradient descent in extremum-seeking control to elimin

See how measuring compressor speed and refrigerant pressure inside the chiller eliminates exter

See how slidable filter, blower, and UV light trays in a compact canister enable independent ma

See how an HVAC control device calculates average air quality metrics to recommend fiberglass o

See how a target-time controller enables advanced HVAC automation with both communicating and l

See how a storage section with controlled pressure differences blocks both outside gas entry an

See how feedback-controlled flow direction through a suction line heat exchanger maintains safe

A unified controller switches water flow between gas heating, heat pump, and bypass paths to save space and balance efficiency with fast response.

See how dual-coil serial-parallel switching enables independent dehumidification without temper

See how automated consumable identification, data tracking, and feedback control minimize human

Ultrasonic airflow sensing calibrates flush pressure sensors so duct exhaust systems maintain dust-carrying velocity with lower fan energy.

See how an HVAC control board detects faulty pressure sensors and substitutes alternative data

See how sensor-based refrigerant detection triggers timed blower operation to dilute and purge

See how smart thermostats compute dehumidification rate and airflow from temperature and humidi

See how a single-cavity filter frame with removable lid and biasing elements secures multiple f

See how rotatable lighting elements activated by motion sensors provide directional guidance to

See how valve-controlled refrigerant circuits switch between sub-critical, trans-critical, and

See how a universal remote learns AC communication protocols by receiving data frames during tr

See how a fire tube heat exchanger with internal circulation pump and flow sensors prevents cra

A single-cavity frame with a removable biasing lid secures multiple filter cells to reduce leaks, noise, and maintenance effort.

See how image-based object detection adjusts fan speed and flap angles to prevent lightweight o

See how monitoring the second expansion valve opening duration detects refrigerant leaks early,

See how a shared flow sensor and correction factors balance parallel hydronic zones by recordin

See how microwave radar locates sound sources to adjust microphone arrays, improving far-field

See how individually adjustable directional outlets with pressure feedback control deliver pers

See how keyword-command registration and centralized sound processing simplify multi-device con

See how a wireless controller with intermediary thermostat enables HVAC automation using both c

See how a rotating case and rudder system adjusts to wind direction, capturing outdoor fine dus

See how a universal HVAC controller bridges communicating and non-communicating equipment to ac

See how dynamic high-pressure valve control uses stored temperature-COP relationships to optimi

See how a gas-liquid separator with flow rate control valve extracts gas refrigerant from two-p

See how a multi-split air conditioner switches overheated rooms to cooling mode while continuin

See how monitoring evaporator heating capacity replaces time-based defrost triggers to reduce u

A mounting plate splits the control box into cooling and sealed chambers, improving heat dissipation while blocking dust and water from electronics.

See how curved sensor inlets on multiple surfaces prevent blockage by objects on top, enabling

See how flow rate sensors and feedback control maintain optimal fluid velocity in fire tube hea