Sintered metal rotor of a rotary piston pump

Details Sintered metal rotor of a rotary piston pump Sintered metal rotor of a rotary piston pump

2004-06-16

2008-12-02

Denion, Thomas (Department: 3748)

Rotary expansible chamber devices

Specific material

Reexamination Certificate

active

07458792

ABSTRACT:
The invention relates to a sintered metal rotor of a rotary piston pump, comprising a pot-shaped base (1) and a journal element centrally projecting from the bottom of said base (1). Said journal element comprises a base section and an adjoining connecting claw section (2) for a coupling element to be joined thereto. The rotor is characterized in that the connecting claw section (2) is configured in the form of two prominent single webs (3). Said single webs (3) are located at a diametrical distance to each other in the periphery of the cylindrical base section in one area each that is limited, in terms of its periphery, to not more than 100°. and radially to not more than 25% of the diameter of the cylindrical base section. The two connecting claw single webs (3) are pressure-sintered by means of single pressure rams that are designed for the cross-sectional areas thereof and that are actuated separately from the sinter pressure rams required to produce the rotor.

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