Learning About Vacuum Pumps A vacuum pump is a device that moves air into and out of a specific object, as in removing gas molecules from an area leaving a partial vacuum and removal of water from one area to another like what a basement sump pump does. In an industrial setting, vacuum pumps are being in producing electric lamps and vacuum tubes, and also in processing semiconductors. There are many classifications of vacuum pumps, depending on their uses and complex processes. We can narrow down vacuum pumps into two broad categories which are transfer pumps and entrapment or trapping pumps. Transfer pumps or kinetic pumps use momentum in the acceleration of gas from the vacuum side to the exhaust side such as what a turbo molecular pump does. Entrapment pumps trap molecules within a confined space such as cryopump which is used to trap liquefied gas molecules into a cold trap. Vacuum pumps are used in various industrial settings, expanding in usage and scope. Vacuum pumps are also classified into mechanical pumps and compressed-air vacuum pumps. Compressed-air pumps work on pressure differentials for creating a vacuum. Mechanical vacuum pumps have electrical motors as power source, but it can also alternatively rely on an internal combustion engine, drawing air from a closed volume, releasing it to the atmosphere. Here are some types of vacuum pumps: rebuilt vacuum pumps, aircraft vacuum pumps, dry, oils and oil-free vacuum pumps, rotary vane vacuum pumps, vacuum and compressor combined pumps, refrigeration and HVAC vacuum pumps and printing system, vacuum pumps. Vacuum pumps are used in various scientific processes and industrial processes such as composite plastic molding, semiconductor and medical processing. Ion implantation, CVD deposition and dry etch are just some few examples of vacuum pumps used for semiconductor processing. Medical applications may include radiopharmacy, radiosurgery and radiotherapy. Vacuum pumps are combined in operational procedures and chambers, sometimes requiring more than a one pump in a single application. Partial vacuum can be created using positive displacement pump, transporting gas load from an inlet port to an outlet or exhaust port. This is a type of pump which creates low vacuum because of its mechanical limitations. In achieving higher vacuum, other techniques must be employed, typically in series. Some examples include oil sealed rotary vane pump, dry scroll pump backing up a turbo molecular pump and a diffusion pump. Vacuum pumps can prolong the life of an engine, that produces a significant amount of air or gas because of its high performance, through adding horsepower. Negative pressure reverses problems that are caused by increased pressure in the pan, pushing oil entered in the air passed the rings on the intake’s valve guides and stroke.Practical and Helpful Tips: Motors

Practical and Helpful Tips: Motors