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

Overlapping extension and output gratings on one waveguide surface expand the eye-box without increasing device dimensions.

Segmented light guides with refraction protrusions achieve uniform illuminance across air vent irradiation holes, resolving non-uniform distribution issues.

A light guide plate assembly uses an optical coupling member with prism parts to enhance light distribution and brightness uniformity.

A backlight unit uses a micro optical switch array to direct light output direction.

A light guide plate uses first and second microstructures to control light emission angles and reduce horizontal viewing angles.

An oblique light source and microstructures on a light guide plate reduce yellow light absorption, ensuring uniform color presentation across viewing angles.

A lamp frame integrates electrical connections within structural components to simplify assembly.

Integrating an optical member around backlight unit sides eliminates structural supports, reducing bezel area and device thickness while maintaining stability.

A backlight module secures an LED light bar via backplane side walls and reflector plate projections to eliminate adhesive tape requirements.

Segmented mid-frame spacers preserve alignment precision while eliminating intervening structures that obstruct light transmission.

A display panel with a back frame hollow-out area and light transmissive backlight module enables transparent zones alongside standard picture output.

Boundary Fresnel lens units detect target crossings, reducing power consumption from dense over-sensing.

A spacer member creates a gap between the light guide plate and diffusing member to mix light uniformly.

Segmented light guiding units resolve splicing edge visibility in thin direct-type backlights by enabling independent local dimming control.

A glass light guide plate with microstructures guides illumination to the display module.

A backlight unit employs a protruding catching part coated with light absorbing material to block light leakage through gaps in slim liquid crystal displays.

Correction units adjust chromaticity ranges at different incident angles to suppress color unevenness caused by wavelength-dependent diffraction efficiency.

Optical waveguides extract light from LEDs to reduce glare and improve uniformity in parking structures.

A clip and seal ground stake integrates a sealing ring with the bulb base to secure holiday lights above soil.

Offset relay lens redirects light from recessed angled-polished connectors, resolving alignment obstruction in high-density patch panels.

Segmented lenses and independent emitters provide flexible lighting modes, resolving the trade-off between task adaptability and structural complexity.

Segmenting the body and self-fixation parts resolves assembly difficulty while maintaining fixation reliability for in-vehicle displays.

Disposable finger clips with detachable fiber optic heads prevent cross-contamination during MRI scans while ensuring accurate blood oxygen measurement.

Annular liquid crystal control electrodes overlap the camera to expand the display area while minimizing color filter light absorption.

Non-uniform light extraction features on a lightguide surface resolve LED intensity variations, achieving over 65% luminance and color uniformity.

A cover lens with a compensation portion expands edge display images into non-display regions.

A compact dry radiator integrates air filtering means within a single structure to provide simultaneous heating and purification.

Spacers on the light guide plate bond to the frame, compensating for reduced flexible circuit board bonding area in narrow border designs.

A display device uses a light guide layer with a lower refractive index optical layer to distribute edge-emitted light across the panel.

A multi-layer light guide uses a beam splitter to achieve homogeneous illumination while managing device complexity.

Aligning the light source parallel to stripe features minimizes height difference impacts on light guiding in thin films.

A backlight unit employs a light shielding layer with spatially varying transmittance to reduce luminance non-uniformity caused by direct LED arrays.

A birefringent phase structure changes light polarization to overcome coupling efficiency limits in waveguide displays.

An inclined fixing member presses a light guide plate against a light source substrate, eliminating clearance gaps that reduce heat dissipation and reliability.

Integrally formed upper holder unites instrument panel and windshield mounting areas, eliminating separate brackets to reduce weight and complexity.

Polygonal light guide plate support with friction stir welding resolves heat dissipation bottlenecks in thin liquid crystal display modules.

Variable density convex elements on a light guide plate disperse light longitudinally, resolving luminance unevenness in edge-lit displays.

Alternating LED sources and cooling members dissipate heat, lowering COF temperature to improve reliability.

Hermetic sealing protects luminescent nanocrystals from oxidative damage, extending device lifetime.

A bicycle toe positioning device secures the treadle using a rib and wing clamping interface with an adjustable twisting spring mechanism.

A directional backlight unit uses a diffractor to control light exit direction through total internal reflection.

Merging RGB LEDs with a plate light guide reduces system complexity while enabling glasses-free 3D display capabilities.

Light conversion materials absorb hazardous blue radiation and emit green wavelengths, reducing eye strain while maintaining display brightness.

A honeycomb reinforcing member attaches to the bottom chassis internal surface of a liquid crystal display.

Conical shafts with internal bores secure flat light guides and printed circuit boards, resolving positioning errors caused by dimensional tolerances.

A twisted kaleido light pipe homogenizes illumination via total internal reflection.

Slanted light guide plates with gaps orient emission surfaces toward multi-directional windows, resolving front-only visibility limits.

A backlight with an asymmetric light input wedge and separated reflective layer improves light extraction efficiency and uniformity.

A parallel spherical five-bar linkage supports an endoscopic camera to enable precise remote center rotation.

V-shaped recesses in translucent light panels diffuse LED output, reducing daylight visibility while maintaining adjustable illumination intensity.