Rotary piston pump for metering a coating agent

摘要

Exemplary illustrations directed to a rotary piston pump, e.g., for metering a coating agent in a coating installation, as well as exemplary methods of using the same, are disclosed. An exemplary piston pump may comprise a plurality of pump units, each having one cylinder and one rotary piston which carries out a wobbling or tumbling movement in the cylinder.

主权项

1. A wobble piston pump for metering a coating agent in a coating installation, the wobble piston pump comprising:
a plurality of pump units, each of the pump units having one cylinder and one wobble piston that executes a wobble movement in the cylinder during operation; and a drive shaft and a drive gear coupled to the drive shaft; each pump unit having a driven gear coupled to each wobble piston, each driven gear being engaged with the drive gear and axially fixed relative to the drive gear; wherein each of the individual pump units are connected to the drive shaft by a conversion gear mechanism; wherein the conversion gear mechanism controls the piston position of the wobble piston in compliance with a predefined control curve determined at least in part by a rotary angle of the drive shaft; and wherein the control curve of the conversion gear mechanism deviates from a sine curve, so that the stroke movement of the wobble piston is not sinusoidal.