Rotary piston pump and method for operating a rotary piston pump

摘要

A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element.

主权项

1. A rotary piston pump comprising:
at least one motor and at least two counter-rotating rotary pistons, the at least two rotary pistons are disposed on a first output shaft and a second output shaft, the first output shaft and the second output shaft are synchronised and driven in such a way that the at least two rotary pistons engage into one another, at least one elastic element connecting the at least two rotary pistons to one another at a drive side of the pump and to the at least one motor, at least one tensioning element adjusting an intensity of tension in the at least one elastic element, a device maintaining tension in the at least one elastic element, and a pump housing containing the at least two rotary pistons; wherein the elastic element has teeth engaged with a first output wheel of the first output shaft and a second output wheel of the second output shaft, the teeth being a weak link in the pump such that they are adapted to break down during complete blockage of the rotary pistons.