Patent ID: 9625054
Date: 2017-04-18
CPC Classifications: F16K,F16L

Claim:
1. A shut-off flap comprising: a housing with an opening; a flap-shaped shut-off element supported in the opening so that the flap-shaped shut-off element is swivellable around a rotation axis, the flap-shaped shut-off element having a flap disk staggered relative to the rotation axis, a first lateral hub to hold a first drive shaft, and a second lateral hub to hold a second drive shaft, with the first and second drive shafts supported such that the first and second drive shafts are rotatable in the housing, wherein flow deflection elements are located on at least one of the first and second hubs, wherein the flow deflection elements are made as passages running through the at least one of the first and second hubs, and wherein the passages extend completely through the at least one of the first and second hubs from a first side of the at least one of the first and second hubs to a second side of the at least one of the first and second hubs, wherein the passages run from an inside of the flap disk through the at least one of the first and second hubs to an outside of the flap disk and wherein, in an open position of the flap-shaped shut-off element, a portion of a fluid flowing over the flap disk is conducted to the outside of the flap disk through the passages.