| 摘要 |
<p>A filter device comprises a housing (2), a filter insert (cartridge) (4) arranged in the housing, an inlet port (3) built at the housing, and a discharge pipe connection that is arranged at the housing wall and that exhibits a mounting surface for installation at the housing. The discharge pipe connection has a pipe section, which projects through an opening of the housing and at which a fastening element is mounted. The region of the housing surrounding the opening is constrained between the mounting surface of the discharge pipe connection and the fastening element. The filter device comprises a housing (2), a filter insert (cartridge) (4) arranged in the housing, an inlet port (3) built at the housing, and a discharge pipe connection that is arranged at the housing wall and that exhibits a mounting surface for installation at the housing. The discharge pipe connection has a pipe section, which projects through an opening of the housing and at which a fastening element is mounted. The region of the housing surrounding the opening is constrained between the mounting surface of the discharge pipe connection and the fastening element. As fastening element a fastening ring is intended, which is fixed at the lateral surface of the pipe section. The mounting surface is formed at a ring flange of the exhaust flange. For mounting the fastening ring on the pipe section, a snap-on or latch-type lock is intended. At the pipe section or the fastening ring, a circular projection is formed, which cooperates in each case with a radial projection or a radial recess of the other component. Both the pipe section and the fastening ring are provided with a circular projection and a leading cone or bevel is intended along the mounting direction in front of the respective projection. A web-shaped geometrical structure is formed along the mounting direction behind the respective projection and/or recess. At the pipe section an annular groove is intended, which is limited by the beveled surface and into which the projection formed at the fastening ring holds. A screw connection is intended for mounting the fastening ring on the pipe section. The pipe section is provided with an outer thread and the fastening ring is provided with an internal thread that exhibits a minute upward gradient. At the threads, devices serving as reverse locks are intended. These devices comprise a locking edge and a locking projection. The fastening ring exhibits a radially outwardly pointing flange, at the proximity of which an end of the filter insert lies. The housing possesses a form of a cylinder. The discharge pipe connection is arranged at a frontal end (8) of the housing centrically to the filter cartridge. At the free end of the pipe section, a supporting framework is arranged, which extends along a part of the axial length within the filter cartridge. At the frontal end of the housing, an axial section (11) is formed, which further leads to a radial collar, in which the opening for passage through the pipe section is present.</p> |
