Meaning mechanical pump

mechanical pump from the motor and pump two parts. Ordinary mechanical pump driven by the motor shaft rotation through a belt; straight mechanical pump is connected directly to the motor shaft, without intermediate transmission links. The principle is the use of a mechanical pump gas expansion, compression, discharge of the gas from the container extracted. Is called a mechanical pump, because it is the use of mechanical methods, cyclically vary the volume of the pump suction chamber, the gas in the vessel continuously expanded by a pump to the inlet of the suction chamber, and It is discharged through the exhaust port by the compression pump. Change the volume of the suction chamber of the pump piston reciprocating manner, stator and rotary vane type, called a reciprocating mechanical pump, mechanical pump stator and rotary vane mechanical fuel dispenser. Due to practical applications, rotary vane mechanical pump to use more, is to rotary vane mechanical pump as an example of their work.