US 11,885,418 B2
Mechanical seal and rotary union having a mechanical seal
Gunther Schwenk, Heidenheim (DE)
Assigned to CHRISTIAN MAIER GMBH & CO. KG, MASCHINENFABRIK, Heidenheim (DE)
Appl. No. 17/276,804
Filed by CHRISTIAN MAIER GMBH & CO. KG, Heidenheim (DE)
PCT Filed Sep. 9, 2019, PCT No. PCT/EP2019/073932
§ 371(c)(1), (2) Date Mar. 16, 2021,
PCT Pub. No. WO2020/058013, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 102018215736.7 (DE), filed on Sep. 17, 2018.
Prior Publication US 2021/0388904 A1, Dec. 16, 2021
Int. Cl. F16J 15/34 (2006.01)
CPC F16J 15/344 (2013.01) [F16J 15/348 (2013.01); F16J 15/3492 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mechanical seal for sealing at least one channel from an environment, the mechanical seal comprising:
a mechanical seal ring supported in a sealing manner in an axial direction against a mating ring and, to compensate for wear on one or both of an end sealing surface of the mechanical seal ring and a mating face of the mating ring, is supported elastically and movably in the axial direction to bear against the mating ring; and
a housing which movably accommodates the mechanical seal ring in the axial direction and encloses the mechanical seal ring with a circumferential part in a peripheral direction;
wherein
the housing has a flange adjoining the circumferential part in the axial direction, the flange is integral with the circumferential part or is connected to the circumferential part in a material-bonded manner, wherein the flange forms at least one radially inwardly facing projection and the mechanical seal ring comprises a stop face which is opposite the radially inwardly facing projection in the axial direction, whereby during normal operation of the mechanical seal the mechanical seal ring will strike against the radially inwardly facing projection during a maximum permissible movement in the axial direction, and
the flange forms at least one radially outwardly facing projection with which the flange can be connected non-rotatably to the component receiving the housing.