Patent ID: 6520757
Filing Date: 2003-02-18
Classification: F04C

Abstract:
A housing construction for receiving or accommodating and supporting a micro pump conveying a fluid and comprising an outer wheel toothed towards an inside and an inner wheel toothed towards an outside and being in a meshing engagement with said outer wheel, said inner wheel being in a nonrotating engagement with an elongated axial shaft, said housing construction comprising:(a) an elongated axial opening for receiving or accommodating said shaft of said micro pump, said opening defining a housing axis; (b) at least three layered structure elements extending in a perpendicular direction with respect to said housing axis, wherein (aa) one of said elements is provided as a support plate having a recess extending in an axial direction, for rotatably supporting said outer wheel, (bb) one of said elements is provided as a connecting block for mounting at least one inlet and one outlet for supplying and delivering said fluid, and (cc) one of said elements being provided as a base element for receiving axially oriented mounting or clamping means for the other layered structure elements; (c) a further plate-shaped layered structure element located between said connecting block and said support plate and comprising one of axially oriented channel segments, circumferentially oriented channel segments and radially oriented channel segments or an optional combination thereof for conveying said fluid from connections of said connecting block to a recess of said support plate for said micro pump, said circumferentially oriented channel segments in said further plate-shaped layered structure element being designed as kidneys axially open towards the surface of the adjacent layered structure elements to directly adjoin a face end of said outer and inner wheels of said micro pump, when it is supported in said recess of said support plate.