Mechanical Apparatus TRIZ Cases

See how interchangeable air inlet-outlet positions and UV-activated photocatalyst members enabl

See how a refrigerant sensor and controllable power switch replace parameter-comparison detecti

See how an outdoor unit control mode switches refrigerant pressure regulation between outdoor a

See how a refrigerant circuit with multiple coolant lines and switching valves cools interior a

Check valves and controllable valves balance refrigerant charge across coil circuits, improving heat pump heating and cooling without added compensators.

See how a bolt-on scrubber attaches directly to HVAC return-air inlets using regenerable adsorb

See how automated air purge and strainer-based foreign matter removal prevent contamination fai

See how a single pressure sensor with wireless circuitry detects filter blockage and notifies u

See how segmented airflow control units with independent sensors regulate air volume flows acro

See how fuzzy logic and environmental sensors enable closed-loop control of mixing valves and a

See how neural networks analyze sensor data to predict air conditioning failures, enabling proa

See how threshold-based compressor activation lowers receiver pressure during standby, preventi

By limiting compressor frequency at low input voltage, this case prevents indoor heat exchanger water blowing and dripping.

See how automated parameter monitoring detects missing check valves in multi-occupancy heating

See how built-in differential pressure measurement adjusts fan speed to reduce installation wir

See how a feedback detection circuit monitors relay contact state to ensure compressor shutdown

Multiple bypass branches reconfigure refrigerant flow so one vehicle AC circuit can handle cooling, heating, defrost, and dehumidification.

See how an intermediary heat medium circulates through indoor units during defrost to prevent w

See how variable-speed compressor control monitors saturated suction temperature to prevent eva

See how batch queuing and segmented calculation enable frequent heat consumption updates despit

See how automated floor-area and allowable-refrigerant calculation enables design-stage air con

See how temperature sensors at gas and liquid portions detect expansion valve and solenoid valv

See how dynamic compressor and fan speed control maintains S/T ratio below 0.8 to optimize mois

A primary-to-secondary HEPA airflow path returns twice-filtered air indoors, avoiding exhaust ducting while maintaining negative pressure.

See how integrated sound, air quality, and image sensors trigger ventilation fans only when mul

See how adaptive temperature setpoint adjustment uses historical occupancy data and preliminary

See how a plastic thin film replaces glass in light-emitting table tops to reduce weight, simpl

See how inline ball valves isolate service ports from refrigerant flow, preventing technician b

See how combining gas sensors with user sensory feedback enables objective comfort evaluation f

A modular control interface simplifies EC motor setup, automatic programming, replacement, and parameter reporting in heat exchanger fans.

See how gradient-based constraint modification optimizes ventilation rates and temperature setp

See how exhaust temperature and pressure sensing replace expensive cryogenic sensors to detect

See how isolation valves and sensors automatically pump down A2L refrigerant below M1 charge le

See how a ferromagnetic stirrer heated by external magnetic induction replaces heat exchangers

See how segmented transition panels bridge furnace-to-coil dimensional mismatches, reduce stati

See how coordinated control of evaporation temperature, air flow, and water flow prevents conde

Cyclic vane angle groups drive ceiling-to-floor air mixing, cutting temperature equalization time while keeping airflow more uniform.

See how an inductive sensor with variable-inductance target portions enables HVAC actuator posi

See how a shared duct with damper control and two evaporators cools three chambers, reducing co

See how pressure-sensing triggers adsorption, washing, or brush cleaning to maintain air intake

See how a smart gateway creates virtual devices to enable BMS networks to control third-party H

See how a mobile air purifier detects and follows humans to purify air on demand, reducing the

Pre-cooling and model-based HVAC duty cycling cut peak-hour energy use and costs while maintaining indoor comfort and reducing grid demand.

See how voltage drop control reduces pump flow velocity in heat medium circuits, preventing ero

See how an HVAC controller enforces minimum deadband between heat and cool set points through a

A temperature-based control algorithm limits transient over-flow in HVAC terminal units to match available power and reduce valve wear.

See how a reversing valve routes refrigerant to a reheat coil during startup to prevent high-pr

See how a transparent sub-door inside the main refrigerator door allows content viewing without

See how distributed wireless climate sensors detect occupancy and movement to direct airflow dy

A co-extruded light pipe with resilient attachment wings snaps into vehicle step rails to deliver uniform ground illumination.

A light guide with refractive extraction features directs light toward a reflective display to widen the viewing angle.

Laser etching creates a foamed surface layer on the light guide to resolve peaky light distribution and narrow viewing angles.

Sidelight LEDs in a waveguide cavity achieve uniform illumination, enabling local dimming in thin displays.

A cable guide device uses a deflection roller and flexible strand to transmit elastic restoring force.

A truncated cap collimator guides incident light via total internal reflection to form a focused illumination spot.

Grooved cores in a light guide enable independent LED control, resolving uneven luminosity caused by source distance attenuation.

Segmented control groups reduce central management complexity while universal interfaces enable interoperability across diverse lighting fixtures.

Nested light adjustment members manage transmittance and reflection to reduce luminance unevenness in planar light sources.

A backlight source uses a glue frame and light-absorbing layers to eliminate edge bright lines in display devices.

Rotating LED tubes between horizontal and vertical modes resolves adaptability complexity trade-offs.

Inclined planar optics in recessed fixtures reduce harsh shadows by directing light through angled panels for even distribution.

Injection molding forms a decorative layer on the light guide plate to eliminate adhesive contamination and prevent dark spots in display devices.

Segmented edge computing reduces response latency while maintaining manageable system complexity.

Time-division driving alternates cyan and white backlight sources to expand the color gamut while maintaining color purity across varying image content.

Tapered core portions shrink the reflection area while a gel coating absorbs wavelengths, reducing noise without adding isolator components.

Sensors detect worker location while actuators adjust the light fixture orientation, eliminating manual repositioning tasks that reduce jobsite productivity.

A liquid crystal box between angled polarizers switches anti-peening effects electronically.

An articulated robot wrist design merges openings to align axes orthogonally for compact kinematic chains.

Woven nylon scattering distributes LED light evenly across elongated areas while maintaining low device weight.

A light source module uses a polar fluid layer to adjust local brightness via electric field control.

An optical functional layer with specific angles absorbs harmful oblique light to reduce moire interference while maintaining high light use efficiency.

An integrated optical component uses diffraction gratings to extract light and form phase images, resolving absorption masking in highly absorbing samples.

A second dielectric layer refracts diffracted light toward a shielding portion, reducing leakage without widening the shield or lowering the aperture ratio.

Water-cooled optical fiber combiner packaging disperses heat through a dry mount structure, preventing polymer coating degradation from cooling water immersion.

An integrated light guiding member extends into a sealed container to resolve non-homogeneous light emission caused by complex container geometries.

A hollow cavity LED backlight assembly uses reflective baffles and optical conditioning stacks to transport light across the display surface.

A crank and slider mechanism connects modular components using interlocking lobes.

A flat light guide incorporates diffuser elements opposite lens block grid elements to scatter coupled light and emit it uniformly.

Irregular circular module layout with rotation axes breaks symmetry constraints, enabling homogeneous light distribution and improved heat dissipation.

Segmented housing with eyebrow shield maintains factory seal integrity while allowing gear head access for reliable operation.

A hollow rod body with a blower fan pumps hot air from sealed electronic assemblies for external heat exchange, resolving waterproofness trade-offs.

Segmented planar reflectors replace lenses to eliminate glare and improve edge sharpness in dental operation lights.

A UV-C fluid disinfection system uses pulse-width modulation to generate high-amplitude light bursts for rapid microbial inactivation.

An enhancement layer between the substrate and adhesive resolves adhesion and durability trade-offs in flexible displays.

Motor unit nested within pre-turn station circle segment to drive machining directly.

A dual-mode optical element guides light via total internal reflection while transmitting uncoupled rays directly to the output face.

Segmented conduction pattern with extension parts secures light sources on a mounting substrate to enable high-density LED arrangement.

Liquid crystal gratings in intersecting planes diverge extracted light rays, eliminating polarizing plates to reduce power consumption.

Segmented shift control units mount to a universal support structure, resolving the trade-off between gear system versatility and device complexity.

A backlight unit diffusion plate extension part blocks light leakage between the circuit board and light guiding plate.

A thermovoltaic semiconductor generates low voltage from cabinet temperature differentials to power interior lighting.

A transmissive liquid crystal panel modulates incident light phase to reproduce holographic images in a thin flat structure.

An air layer between two light guide plates enhances total internal reflection, resolving insufficient condensation and ensuring uniform brightness.

A planar illumination apparatus uses a curved frame to house optical sheets and fix their end portions via members on the side wall.

A translucent lighting element disperses light from an internal fixture through a body structure to a surface.

A microstructured optical film uses direct layer bonding to eliminate intervening polymer layers and reduce total thickness.

A frame assembly uses a fixing member inserted into engaging structures along an extending direction to secure components without penetrating fasteners.

Optimized light adjusting structures expand the vertical viewing angle while maintaining brightness and eliminating interference stripes.

An offset base allows adjacent light stands to nest for compact transport, resolving the trade-off between quick setup time and storage volume.