Abstract: A filter system has a filter housing with a fluid inlet and a fluid outlet. At least two exchangeable filter elements are arranged between the fluid inlet and the fluid outlet each having a filter body with a filter medium to be flowed through by a fluid in a flow direction. The filter elements each have an opposing end face with a seal surrounding an outer edge of the filter body at the end face. An abutment element is arranged between the seals when mounted in the filter housing. The abutment element has sides facing away from each other with a seal surface for contacting the seals. A filter element has a filter body with a filter medium and an end face with a seal surrounding an outer edge of the filter body at the end face for contacting a seal surface of an abutment element.

Abstract: A filter system including at least two exchangeable filter elements, each including a filter body including a filter medium arranged so as to allow passage of a fluid in a flow direction for flow-through. At least one of the filter elements includes an axially projecting lateral strip which in an axial direction projects past an end face of the one of the filter elements, wherein the other one of the filter elements includes at an end face a circumferentially extending seal with a groove and wherein the end face of the other one of the filter elements is arranged adjacent to the end face of the one of the filter elements. When the filter elements are assembled as intended, the axially projecting lateral strip of the one of the filter elements engages the groove of the seal of the other one of the filter elements.

Abstract: An ambient air purifier includes a housing including at least a housing cover and a mounting base, wherein the housing has at least one flow inlet for ambient air to be purified and at least one flow outlet for cleaned air, a fan arranged within the housing, and at least one filter element. The at least one filter element includes at least one filter medium body, and at least a first lateral frame element is provided on at least an upper front end of the at least one filter medium body of the at least one filter element, having a larger cross section than the upper front end and protruding beyond the upper front end of the filter medium body with a protruding segment.

Abstract: A filter element for filtering air has a filter body with a folded filter medium provided with fold edges. A first side strip made of a fibrous material is provided, wherein the first side strip has a seal section, wherein the seal section seals the filter body at a first end face extending transversely to the fold edges of the filter medium, and wherein the first side strip has also a first tab projecting away from the seal section and extending in a direction of the fold edges. A circumferential seal engages around the first tab. An air filter is provided with such a filter element. A filter device provided with a flow channel permitting an air flow therethrough has such a filter element disposed therein, wherein the filter element extends perpendicularly to a direction of the air flow through the flow channel.

Abstract: A steam turbine has a single-shell turbine casing and specific inner casings arranged inside the turbine casing. The steam turbine has a turbine casing with an outer wall, a turbine shaft mounted rotatably about a turbine axis in the turbine casing, a first turbine part, and at least one second turbine part which is arranged downstream of the first turbine part in the axial direction of the turbine shaft, wherein the expansion direction for steam conducted through the steam turbine runs from the first turbine part to the second turbine part, wherein between the first turbine part and the second turbine part, a sealing shell is arranged on the turbine casing, in particular on the inner side of the outer wall for rotation therewith, the sealing shell being formed in a sealing manner with respect to the turbine shaft via sealing elements.

Abstract: A steam turbine has a single-shell turbine casing and specific inner casings arranged inside the turbine casing. The steam turbine has a turbine casing with an outer wall, a turbine shaft mounted rotatably about a turbine axis in the turbine casing, a first turbine part, and at least one second turbine part which is arranged downstream of the first turbine part in the axial direction of the turbine shaft, wherein the expansion direction for steam conducted through the steam turbine runs from the first turbine part to the second turbine part, wherein between the first turbine part and the second turbine part, a sealing shell is arranged on the turbine casing, in particular on the inner side of the outer wall for rotation therewith, the sealing shell being formed in a sealing manner with respect to the turbine shaft via sealing elements.