Guiding device for metal bellows

摘要

A guiding device for metal bellows (19) includes a terminal element (35) on a bellows end (31). The terminal element is movable along the wall of a housing (1) during expansion and compression of the bellows (19). A guide (47) is interposed between the terminal element and the housing (1). The guide has an annular element (47) surrounding a peripheral zone of the terminal element (35). The annular element, on its outer periphery, forms first annular sections radially spaced apart from the wall of the housing (1) and separated from each other by second annular sections radially projecting over the first annular sections.

主权项

1. A guide for a metal bellows, compromising:
an end body on a bellows end and movable along a wall of a housing during bellows expansion and compression, said end body having a circumferential annular groove therein, said groove being closed on each axial end thereof and being radially open, said end body forming a closure body closing an interior of the bellows in a fluid-tight manner and forming a separation between a gas side and a fluid side in the housing, said bellows and said end plate being separate members; at least one annular element surrounding a peripheral region of said end body and having a ring portion engaged within said annular groove; first annular sections being formed by said annular element, being on an outer periphery of said annular element and being radially spaced from the wall of the housing; second annular sections being formed by said annular element, being distributed on said outer periphery of said annular element, separating said first annular sections from one another and projecting radially beyond said first annular sections.