Seal element of a face seal device

• US 20030151208A1
• Filed: 03/04/2003
• Published: 08/14/2003
• Est. Priority Date: 05/11/2001
• Status: Abandoned Application

• Current Assignee: Burgmann (Feodor) Dichtungswerke GmbH & Co. KG (Freudenberg & Company KG)
• Original Assignee: Burgmann Dichtungswerke
• Inventors: Riedl, Michael, Ries, Wolfang, Svejkovsky, Reinhard
• Application Number:
  US10/377,669
• Publication Number:
  US 20030151208A1
• Time in Patent Office: Days
• US Class Current: 277/370
• CPC Class Codes: F16J 15/36 connected by a diaphragm or bellow to the other member

Abstract

A seal element of a face seal device for sealing a rotary component relative to a stationary component, includes a pair of mounting portions spaced apart from each other and a bellows portion connected with and extending between the mounting portions. One of the mounting portions serves for non-rotational mounting on the rotary component and the other for mounting a seal ring thereon. At least the surfaces of the mounting and bellows portions which are subjected to a medium which is to be sealed are formed of a synthetic material essentially resistant to the medium. The one mounting portion includes at least a single screw bore essentially radially extending therethrough. A screw pin made of a ceramic material is inserted in the screw bore for clamping the mounting portion relative to the rotary component.

Claims

1. A seal element of a face seal device for sealing a rotary component relative to a stationary component, including a pair of mounting portions spaced apart from each other and a bellows portion connected with and extending between the mounting portions, one of said mounting portions serving for non-rotational mounting on the rotary component and the other for mounting a seal ring thereon, at least the surfaces of said mounting and bellows portions subjected to a medium which is to be sealed being formed from a synthetic material essentially resistant to the medium, said one mounting portion including at least a single screw bore essentially radially extending therethrough, wherein a screw pin made of a ceramic material is inserted in said screw bore for clamping the mounting portion relative to the rotary component.

2. The seal element according to claim 1, wherein the screw pin comprises cutting means at an end face thereof providing an interlocking engagement with a surface of the rotary component.

3. The seal element according to claim 1, wherein that said one mounting portion comprises a lug portion underlaying the screw bore and the screw pin.

4. The seal element according to claim 1, wherein the screw bore and the screw pin are provided in a mounting ring made of said synthetic material and provided on said one mounting portion (9).

5. The seal element according to claim 1, wherein said mounting portions are formed entirely of said synthetic material.

6. The seal element according to claim 1, wherein said mounting portions and said bellows portion are formed entirely of said synthetic material.

7. The seal element according to claim 1, wherein that said synthetic material comprises PEEK.

8. The seal element according to claim 1, wherein that said synthetic material comprises ECTFE.