That's not strictly true. Gases are pumped by using pumps such as piston pumps and vane pumps. A garage compressor has the air pumped into the tank by a piston pump. Even a bicycle pump is often used.
however, when gases are "pumped" it by definition becomes a compressor. pumps move basically un-compressible fluids. low pressure gas transfer is termed a blower, while higher pressure usage requires a compressor.
pump is used to move liquid from one point to another, while compressor is used to compress and move gases from point to point.
Vacuum pumps are pumps designed to remove or displace gases such as oxygen, or liquids, such as milk. Vacuum pumps are used in a variety of different settings. Milk pumps, both bovine and human, use a vacuum pumps. Trash compactors, vacuum sealers, and even certain types of microscopy uses vacuum pumps.
bilge pump
Accelerator pump.
Peristaltic pumps are used to pump many different kinds of fluids. Peristaltic pumps are used in biological systems such as the gastrointestinal tract.
Types of Pumps Used by Chemical Industries The Centrifugal Pump. By far the most common type of pump in this industrial sector, centrifugal pumps are based on a well-recognized operational principle. Helical Screw Pumps. Positive Displacement Devices. Diaphragm Pumps.
Trash pumps are meant to pump water as well as other debris and solids. There are several types of trash pumps including diaphragm and semi-trash pumps.
Gear Pump.Additional answerI very much doubt if gear pumps are used in any petrol car because of the lack of lubrication. Much more likely is a diaphragm pump, which is certainly used on a lot of cars.
A pump can be used in place of a compressor when the application involves moving liquids rather than gases, as pumps are designed to handle fluid flow. For example, a positive displacement pump can create pressure to move a liquid through a system, similar to how a compressor moves gas. However, it's important to note that pumps and compressors operate on different principles; pumps are generally not suitable for compressing gases due to the significant differences in fluid behavior. Therefore, the substitution is only viable in specific scenarios where the medium and application align with the pump's capabilities.
Before humans used electrical motors to operate pumps to pump water from the ground, the pumps were mechanically operated, via hand (hand pumps), wind (windmill pumps), etc.
Gear pumps. A vane pump. Piston pumps. Radial pump. Centrifugal pumps.
A pump and a compressor serve different purposes and operate on different principles. A pump is designed to move liquids, while a compressor is meant to increase the pressure of gases by reducing their volume. Although some pumps can move gases (like air pumps), they are not efficient or effective compressors. Thus, while a pump can sometimes perform a similar function in specific contexts, it is not designed to replace a compressor.