Mechanical kinetic vacuum pump with rotor and shaft

Details Mechanical kinetic vacuum pump with rotor and shaft Mechanical kinetic vacuum pump with rotor and shaft

2005-06-14

2005-06-14

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

C416S24100B

Reexamination Certificate

active

06905306

ABSTRACT:
A mechanical kinetic vacuum pump with a stator (1), a rotor (6, 7) made from an aluminum or magnesium alloy and a rotor (6, 7) and a bearing shaft (3). The shaft (3) and the rotor (6, 7) are connected by a shrink- or screw-fit in a secure permanent connection. The rotor (6, 7) is made by spray forming. The main alloying component in the aluminum or magnesium alloy is silicon which is present in an amount such that the alloy has an expansion coefficient which essentially corresponds to the expansion coefficient of the shaft material.

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