US 12,188,199 B2 · Drive device for a diaphragm wall cutter

Abstract

A drive device for a diaphragm wall cutter, having a drive housing and/or gear housing, which encloses an interior for accommodating drive and/or gear elements and comprises two housing parts which are rotatable relative to one another and sealed off from one another by a sealing device, and having a pressure equalization device for pressure equalization between the interior and the surroundings. A diaphragm wall cutter having such a drive device. The pressure equalization device comprises at least one intermediate chamber, which is pressurized and is sealed off from the interior by an inner seal and off from the surroundings by an outer seal. By virtue of such a sealed intermediate chamber that can be considerably smaller in terms of volume than the interior, the pressurization for pressure equalization between interior and surroundings is considerably simpler.

Claims26

Dependent claims

A drive device for a slurry wall cutter in an environment comprising:

a drive case and transmission case that surrounds an inner space for receiving drive and transmission elements and that comprises two case parts, wherein the two case parts are rotatable relative to one another, wherein the two case parts are sealed with respect to one another by a seal device;
a pressure equalization device for the pressure equalization between the inner space and the environment, wherein the pressure equalization device has at least one intermediate chamber, wherein the intermediate chamber has pressure applied from a pressure source, and wherein the intermediate chamber is sealed with respect to the inner space by an inner seal and with respect to the environment by an outer seal.

Dependencies are inferred from the claim text.

Drive device for a diaphragm wall cutter

Life of this patent

Drive device for a diaphragm wall cutter

Life of this patent

Abstract

Claims26