Patent ID: 9182040
Filing Date: 2015-11-10
Classification: F16J,F16L

Abstract:
1. A fluid rotary passage for sealing a fluid pressure chamber between a rotatable shaft and a shaft seat, the fluid rotary passage comprising: a sealing ring carrier rotationally fixed to one of the shaft and the shaft seat in a fluid-tight manner, a fitting body in contact with the other of the shaft and the shaft seat in a fluid-tight manner, the fitting body and the sealing ring carrier being radially spaced from each other, at least in sections, in order to create a fluid pressure chamber therebetween, two axially spaced apart sealing rings, each sealing ring having one contact surface sealingly applied against a respective contact surface of the sealing ring carrier and having another contact surface sealingly applied against a respective contact surface of the fitting body, for sealing the fluid pressure chamber against the outside, each sealing ring being twistable with respect to at least one of the sealing ring carrier and the fitting body, wherein the sealing ring carrier and the fitting body together form two axially spaced apart receiving grooves for the sealing rings, each receiving groove comprising a section of the sealing ring carrier and a section of the fitting body, and each receiving groove being open toward the fluid pressure chamber and having at least one holding protrusion at least partially securing the sealing ring disposed in the respective receiving groove against radial dislocation from the receiving groove toward the fluid pressure chamber.