| 摘要 |
A sealing device (24) of a filter system (10) for filtering fluids, in particular of a motor vehicle, with a sealing ring (26) is described. The sealing ring (26) serves to seal a pipe (16), in particular a central pipe of a filter housing (12), that penetrates through a flange-sided opening (18) of an end plate (20), in particular of an end element of a filter element (14). The sealing ring (26) features a central section (58) that connects it with the end plate (20). The sealing ring (26) features in its axial direction on both sides of the central section (58) elastic sealing sections (60, 62) which cause each a reduction of the inner diameter of the sealing ring (26) compared with the central section (58). The elastic sealing sections (60, 62) extend freely flexibly and can be bent away from the central section (58) such that they can be pressed—when the pipe (16) is mounted—by means of prevailing fluid pressures—when the filter system (10) is operated—in radial direction against the exterior wall of the pipe (16). |
| 主权项 |
1. A filter element (14) with a sealing arrangement (24), comprising:
a first end plate (20); a second end plate (38) spaced axially away from the first end plate; an elongated support tube (40) extending between and connecting the first end plate (38) and the second end plate (20); a filter medium (42) circumferentially surrounding the support tube (40), the support tube arranged in an interior area (44) of the filter medium, the filter medium connected at axially opposing ends to the first end plate (20) and the second end plate (38); the first end plate (20) having a flange-sided end plate opening (18) extending through the first end plate, the first end plate (20) arranged at and secured onto a first axial end of the filter element (14); a tubular collar (56) formed on the first end plate (20) onto the axial exterior surface of the first end plate (20) and extending outwardly away from the first end plate (20), the tubular collar circumferentially surrounding the flange-sided end plate opening (18); a tubular seal ring (26) mounted onto a radial interior side of the tubular collar (56) at an axial outward spacing away from the first end plate (20), the tubular seal ring (26) including
a central section (58) fixedly mounted onto said radial interior side of said tubular receiving collar (56);elastic sealing sections (60,62) formed at axially opposing ends of the tubular seal ring (26) on opposing sides of said central section (58), the elastic sealing sections (60,62) elastically defecting in a radial direction causing a reduction each of an inner diameter of said sealing ring (26) compared with said central section (58) of said seal ring (26);wherein said elastic sealing sections (60, 62) are elastically flexible to bend radially outwardly away from said central section (58);wherein said elastic sealing sections (60, 62) are operative to sealably press in a radial inward direction against an exterior wall of another tubular member to be received within the tubular seal ring (26), the elastic sealing sections (60, 62) sealing radially between said tubular member and said end plate (20);wherein a sealing force pressing said elastic sealing sections against said tubular member is augmented by prevailing fluid pressures acting on a radially exterior side of said elastic sealing sections. |
