Atmospheric air will enter a refrigeration system any time it is opened for service or any time a new system is being assembled. Atmospheric air contains nitrogen, oxygen, and water vapor, all of ...

A vacuum pump is a powerhouse machine that removes air, gases, moisture, and contaminants from a system to create a clean environment for refrigerants. These efficient and powerful machines need clean ...

Depending on the automotive part, air is crucial or crucially harmful. Whereas an engine needs air to function properly, the opposite is true for a car’s braking system. To operate effectively and ...

Improvements: diagram of the 3D-printed peristaltic vacuum pump showing the pair of notches and a close-up of one of the rollers. (Courtesy: Luis Fernando Velásquez-García et al) A tiny 3D-printed ...