F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 29/08 (2006.01) F01D 5/20 (2006.01) F04D 29/16 (2006.01) F16J 15/44 (2006.01)
Patent
CA 2330737
Shown with the invention are self-supporting wear rings (1a, 1b) for flow machines with a fluid, which are arranged at a radial sealing gap (18) to a rotor (9), and of which the outer jacket surface (3) is provided with a wear surface (2). The wear rings (1a, 1b), which are fixed in the axial direction, consist of a material with lower thermal expansion coefficients than their support and lie hollowly on their inner jacket surface, with a first conical holder surface (8) encountering with the apex of its cone a second holder surface (8"), which is designed as straight shoulder, in the plane of the latter (19) on the axis of rotation or encountering a second holder surface, which is designed as a conical holder surface (8'), at its cone apex on the axis of rotation (20).
Bolliger Walter
Pesek Tomas
Fetherstonhaugh & Co.
Sulzer Pumpen Ag
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