Control rod with compensation element

    公开(公告)号:US11276991B2

    公开(公告)日:2022-03-15

    申请号:US16956686

    申请日:2018-11-28

    发明人: Ulf Schuemann

    摘要: A control rod system has a control or drive rod and at least one compensation element for vacuum interrupters, in particular for gas-insulated switchgear. The at least one compensation element has at least one hermetically sealed bellows. The at least one hermetically sealed bellows is either connected to the drive rod at at least one point, or is connected to or can be coupled to the drive rod via at least one engagement device and the engagement device is connected or can be connected to the at least one compensation element in a fixed or engaging manner.

    Azeotropic and azeotrope-like compositions comprising Z-1,1,1,4,4,4-hexafluoro-2-butene and methyl perfluoropropyl ether

    公开(公告)号:US10266665B2

    公开(公告)日:2019-04-23

    申请号:US15506605

    申请日:2015-08-26

    摘要: Disclosed are azeotropic or azeotrope-like compositions containing Z-1,1,1,4,4,4-hexafluoro-2-butene and methyl perfluoropropyl ether. Also disclosed is process of using the azeotropic or azeotrope-like composition as blowing agents for preparing a thermoplastic or thermoset foam. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a refrigerant for producing cooling or heating. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of using the azeotropic or azeotrope-like composition as propellants for producing an aerosol. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.