Sealing arrangement

US7959159B2 · kind B2 · utility

Assignees

• ElringKlinger AG · DE
• Robert Bosch GmbH · DE

Inventors

• Klaus Hocker · Bietigheim-Bissingen, DE
• Walter Schuhmacher · Bietigheim-Bissingen, DE
• Clemens Schefzik · Ehningen, DE
• Klaus Lang · Munster, DE
• Siamend Flo · Stuttgart, DE
• Berthold Pfuhl · Markgröningen, DE
• Heinz Siegel · Stuttgart, DE

Key dates

• Filing date: Sep 21, 2007
• Grant date: Jun 14, 2011
• Expiry date: Jun 16, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/16
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In order to provide a seal arrangement for sealing between a first medium space filled with a first medium and a second medium space filled with a second medium which ensures reliable sealing between the medium spaces with very low leakage values even over a prolonged period of use, wherein said seal arrangement comprises a moveable component which is displaceable in the longitudinal direction thereof and/or rotatable about the longitudinal direction thereof and extends through the seal arrangement and wherein the seal arrangement comprises a sealing element which comprises a first sealing region that is sealing in relation to the first medium space and a second sealing region that is sealing in relation to the second medium space, wherein the first sealing region comprises a first dynamic sealing section abutting against the moveable component and the second sealing region comprises a second dynamic sealing section abutting against the moveable component and at least one of the two dynamic sealing sections has at least two sealing lips, it is proposed that each of the two sealing regions should comprise at least one respective spring element which biases the dynamic sealing sectio…