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Pumps
Pumps are categorized according to the way they build up the pressure.
Pumps with reciprocating displacementPiston pump - inline-injection pump (Diesel engine)
Piston pump - acceleration
pump (carburetor)
Axial piston pump - air conditioner compressor
Air conditioner compressor (picture)
Membrane pump - carburetor (petrol engine)
Membrane pump - accelerator pump (carburetor)
Pump injectors - Diesel injection
Pumps with rotary displacementRoots charger - supercharging
Rotary vane pump - petrol injection
Vane pump - distributor injection pump
Double-action vane pump of the hydraulic power-steering
Gear pump and rotary pump - lubrication
Gear wheel pump (Common Rail)
Barrier-vane pump (pump
jet)
Flow-distribution pumpsPeripheral pump - fuel distribution
Cooling pump - liquid cooling
Turbo
charger
Turbo charger - adjustable (picture)
Pumps for liquids have been around for a long time, as water-wheels for 3000 years and as worm-screws, not quite that long. One distinguishes between displacement- and flow-distribution pumps. Displacement pumps
move liquids by changing the volume and the respective controlled opening and closing of of inlets and outputs. The volume can be changed either by reciprocal or the rotating displacement pump.
Flow-distribution pumps, as opposed to displacement pumps, are more sensitive to substances containing gaseous inclusions. Basically, they are also not self-priming, unless they are fed. They also cannot, however
briefly, transport gases. Therefore, they mostly provide a more even delivery-flow. Indeed, the displacement pumps are responsible when higher pressures occur, very high pressures are possibly better handled by the
reciprocal displacement pump. 04/12
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