Patent ID: 9127673
Filing Date: 2015-09-08
Classification: F04C

Abstract:
1. A rotary lobe pump for conveying a fluid medium containing solids, comprising a pump casing comprising a pump chamber formed inside the pump casing; a connection casing with a gearbox casing arranged at least partially inside the connection casing to comprise an integral transmission unit; wherein the pump casing and the transmission unit are releasably connected to each another; an inlet opening and an outlet opening for the medium being conveyed, wherein the inlet opening and the outlet opening are arranged on the connection casing, and are generally aligned at a same axial position with the gearbox casing, two rotary lobes arranged in the pump chamber and having rotary lobe vanes engaging with each other, wherein each of the two rotary lobes is fixed torque-resistantly on a respective shaft and can be driven by said respective shaft, and wherein the respective shafts are coupled to each other by a transmission gear arranged in the gearbox casing of the transmission unit, wherein a first flow channel is provided connecting the inlet opening to the pump chamber and a second flow channel is provided connecting the outlet opening to the pump chamber.