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

Its function is dependent on its parts and adequate engine vacuum. The valve consists of two chambers ... engine vacuum that ...

One of the tricky parts of ... the problem of air leaking past the 3D-printed pistons. Instead of trying to make an air-tight piston, he added a rubber membrane and a clever valve system to ...

Separating the crankcase from the intake manifold, which is a source of varying air pressure ... The valve is an inexpensive, easily replaced example of the dozens of parts that can elicit ...