| 摘要 |
A vane pump for conveying pasty masses, in particular sausage meat, comprising a pump housing and a rotor, which is eccentrically arranged within said pump housing and which is caused to rotate, as well as vanes, which are supported in said rotor in a radially displaceable manner and which define conveying cells with the wall of the pump housing and cooperate with said wall so as to produce a sealing effect, said vanes having pressure applied thereto in the radial direction in the pressure area of the pump prior to the outlet, is further developed in such a way that an improved efficiency can be achieved with the aid of simple structural means by providing the features that a pressure piece is supported in a radial recess of the wall of the pump housing such that it is adapted to be radially adjusted, said pressure piece replacing the contour of the wall of the pump housing with its surface which faces the vanes, and that, in addition, said vanes are constructed as radially continuous vanes. In cases in which said vane pump is a component of a vacuum filler, the wall of the housing of the pump can have provided therein a vacuum aperture which is arranged such that an adjustment of the vanes becomes effective in the pressure area as well as in the vacuum region.
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