Patent ID: 11953099
Assignee: OTTO EGELHOF GMBH & CO. KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. Valve arrangement for a switching valve for regulating a mass flow in a refrigerating circuit or a heating circuit, comprising a valve housing, which comprises a feed opening and a discharge opening, comprising a valve piston, which comprises a valve-closing member, which buts against a valve seat of a through-hole between the feed opening and the discharge opening in a closed position and closes the through-hole, wherein
the valve seat comprises a stop surface and a sealing surface which are oriented so as to be adjacent to one another,
the valve-closing member comprises a supporting surface and a gasket surface which are oriented so as to be adjacent to one another,
an elastic sealing element is provided on the valve seat or the valve-closing member, on which sealing element the sealing surface or gasket surface is formed,
a sealing projection is provided on the sealing surface or the gasket surface and is oriented towards the opposite gasket surface or sealing surface,
the supporting surface of the valve-closing member and the stop surface of the valve seat but against one another in the closed position and form a travel limitation between the valve-closing member and the valve seat, and the sealing projection is at least partially pressed into the sealing element,
the valve piston comprises a sealing sleeve and a valve body, which is at least partially surrounded by the sealing sleeve and the sealing element is housed between the sealing sleeve and the valve body,
the sealing element has a radially outwardly facing annular bead that does not extend completely along the height of the sealing element so that a free space is formed between the sealing element and the surrounding sealing sleeve in a receiving space, and
a beading is provided on the sealing sleeve for fixing the sealing element and the valve body in the sealing sleeve.