Delivery unit e.g. citation pump of electrical submersible pump systems and an oil pump for internal combustion engine, has gear train, internal gear wheel and external gear wheel

摘要

The delivery unit has a gear train (10), an internal gear wheel (12) and an external gear wheel (14). The internal gear wheel is arranged in an eccentricity (22) to the external gear wheel. The internal gear wheel and the external gear wheel have one conical teeth (46). An independent claim is also included for a method for producing delivery unit.