Vane type compressor with double-wall vanes
AssigneeRobert Bosch GmbH
InventorsHelmut Rembold, Manfred Ruoff
Life of this patent
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Abstract
In a vane type compressor, in which a plurality of radial vanes are supported on a compressor shaft and extended through a rotary piston, each vane is formed of two wall portions spaced from each other and two ring portions receiving bearings for supporting the vanes on the shaft. The wall portions and the ring portions of each vane are formed as a one-piece element which may be produced by stamping-out and bending a sheet metal. A supporting structure of kernels of aluminum disposed in a honeycomb manner is inserted between two wall portions of each vane.
Claims11
A vane type compressor including a shaft, a rotary piston surrounding said shaft, and a plurality of vanes radially extended from said shaft through said piston, said vanes each being formed of two opposite walls spaced from each other to form a hollow space therebetween and further including outer ring portions spaced from each other and inner bearing portions, said outer ring portions encircling said bearing portions, said bearing portions supporting said vanes on said shaft, said opposite walls and said ring portions being formed as one-piece, said hollow space extending to said bearing portions, said vanes each further including a supporting structure inserted in said hollow space, said supporting structure being rigidly connected to said walls and being enclosed in said hollow space so that it is flush with outer edges of said walls.
Dependencies are inferred from the claim text.