Invention Grant
- Patent Title: Mechanical face seal assembly, in particular for hot media, and pump assembly
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Application No.: US17604081Application Date: 2020-02-25
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Publication No.: US11619307B2Publication Date: 2023-04-04
- Inventor: Kilian Obertanner , Johannes Bauer , Josef Gerg , Stefan Ledig , Joseph Kiermeir , Christoph Rapp
- Applicant: EagleBurgmann Germany GmbH & Co. KG
- Applicant Address: DE Wolfratshausen
- Assignee: EagleBurgmann Germany GmbH & Co. KG
- Current Assignee: EagleBurgmann Germany GmbH & Co. KG
- Current Assignee Address: DE Wolfratshausen
- Agency: Locke Lord LLP
- Agent Scott D. Wofsy
- Priority: DE102019206205.9 20190430
- International Application: PCT/EP2020/054864 WO 20200225
- International Announcement: WO2020/221489 WO 20201105
- Main IPC: F16J15/34
- IPC: F16J15/34 ; F04D1/00 ; F04D29/12

Abstract:
The invention relates to a mechanical seal arrangement for sealing on a rotating component (21), comprising a slide ring seal (2) having a rotating slide ring (3) and a stationary slide ring (4), which define a sealing gap (5) between the sliding surfaces (3a, 4a) thereof, a recirculation conveyor (7) arranged adjacent to the rotating slide ring (3) wherein the recirculation conveyor (7) comprises a recirculation line (19) in which a cooling device (20) for cooling the recirculated fluid is arranged, a recirculation rotor (8) and a hollow cylindrical housing (9), wherein the recirculation line (19) leads to a cavity (6) in the region of the sealing gap (5) of the sliding ring seal (2), wherein the hollow cylindrical housing (9) comprises an inner shell surface (11) and an outer shell surface (12) and wherein a conveyor channel (10) is provided on the outer shell surface (12), which conveyor channel (10) is formed along the outer shell surface (12) from a start portion (13) to an end portion (14) wherein the start portion (13) of the conveyor channel (10) is separated from the end portion (14) by a separating web (15), wherein a plurality of feed openings (16) are provided in the hollow cylindrical housing (9), which open from the inner shell surface (11) into the conveyor channel (10), and wherein a single outlet opening (17) is provided at the end portion (14). (FIG. 1)
Public/Granted literature
- US20220221060A1 MECHANICAL FACE SEAL ASSEMBLY, IN PARTICULAR FOR HOT MEDIA, AND PUMP ASSEMBLY Public/Granted day:2022-07-14
Information query
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