Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having multiple parts releasably clamped
Reexamination Certificate
2006-08-08
2006-08-08
Nguyen, Ninh H. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having multiple parts releasably clamped
Reexamination Certificate
active
07086832
ABSTRACT:
The high pressure rotary pump in a pot housing includes a pressure cap (3). The latter has a flange part with a flange (4) with which the pressure cap is fastened to an end face and annular sealing surface (20) of a housing (2) by being screwed into place. The flange is elastically deformed by being screwed into place. The sealing surface of the housing in the region of a base zone of the flange stands in contact on this with a second sealing surface (40). The two sealing surfaces (20, 40) lie on two at least approximately radially extending conical or annular surfaces prior to the being screwed up. These two surfaces enclose an angle χ which opens outwardly with respect to a central axis (101). After the screwing into place of the flange, the two sealing surfaces are pressed onto one another due to its elastic deformations and thus the angle between the sealing surfaces is equal to zero.
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Lienau Wolfram
Meuter Paul
Sulzer Pumpen AG
Townsend and Townsend / and Crew LLP
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