Patent ID: 7748408
Filing Date: 2010-07-06
Classification: B60T,F16K,Y10T

Abstract:
1. Closing device for closing channels in which pressure fluid is conveyed in a housing, into which a cartridge-type closing member is mounted in a pressure-fluid-tight manner, wherein for sealing the closing member in an accommodating bore of the housing that is provided for the closing member, at least one sealing body is arranged between the closing member and the accommodating bore, wherein the sealing body is configured as a sleeve member, whose peripheral surface is arranged between the accommodating bore and the closing member for sealing purposes, and is subjected to a defined surface pressure in sections, wherein the accommodating bore and the closing member are respectively provided with at least one stepped portion decreasing in diameter in a joining direction of the closing member, with an annular chamber being provided between the stepped portion of the closing member and the stepped portion of the accommodating bore, in which chamber the sleeve member extends in a pressure-fluid-tight manner to bridge an axial distance (X) that exists between the two stepped portions.