Pressurizing medium feeding channels sealing device, has sheathing body extending between sections of fastening body and mounting hole, in which axial and radial distances between sections are bridged in fluid sealing manner

摘要

The device has a sealing body to seal a fastening body (3) in a mounting hole (2) of a housing. A sheathing body (1) made of elastic material/metal extends between the sections of the fastening body and the hole. The axial and radial distances between the sections are bridged in a fluid sealing manner by the axial distance between the installation points of the sheathing body and the pretensioning force of the sheathing body. Channels (16-18) are provided for hydraulic fluid. Connection between channels (16,17) are controlled by an electromagnetically operated closing member (8).