You've probably heard about the choke valve in your car engine's carburetor, but what does this seemingly essential component ...

As environmental regulations tighten worldwide, automakers are under increasing pressure to develop more energy-efficient and ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to ...

In the charcoal canister, the purge valve is the opening that releases fuel vapors that were absorbed by the charcoal back into the engine for combustion. A failed purge valve is one of many ...

The ‘pinching’ arm is raised and lowered by an RC Car servo. When the valve is in the closed position, the servo does not need to continually apply pressure, the servo is powered down and the ...

[Fab] went with a simple butterfly valve design, similar to the throttle valve in most gasoline-powered cars. The butterfly vane rotates to vary the flow, turned by a small SG90 servo. A Wemos D1 ...