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Side-channel pump

A side channel and pump casing technology, applied in the field of side channel pumps, can solve the problems of impeller wear, reduced efficiency of side channel pumps, increased manufacturing tolerances and the danger of impeller wear

Inactive Publication Date: 2009-09-30
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However there is a risk of impeller wear on the pump casing, resulting in increased friction and reduced efficiency of the side channel pump
Manufacturing tolerances and axial forces acting on the impeller increase the risk of impeller wear

Method used

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  • Side-channel pump
  • Side-channel pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 A section through the side channel pump 1 is shown with the adjacent area of ​​the electric motor 2 . The side-channel pump 1 has an impeller 4 rotatable in a pump housing 3 . The impeller 4 is arranged on the shaft 5 of the electric motor 2 . The pump housing 3 has two housing parts 7 , 7 ′ at a distance from the ring part 6 and a housing sleeve 8 . The ring part 6 is dimensioned in such a way that the shell parts 7, 7' are arranged opposite the end face of the impeller 4 at a small distance. The housing sleeve 8 holds the side channel pump 1 in a predetermined position relative to the electric motor 2 and prestresses the housing parts 7 , 7 ′ of the pump housing 3 against the annular part 6 . An inlet line 9 is arranged in one of the housing parts 7 , while the other housing part 7 ′ has an outlet line 10 . The inlet line 9 and the outlet line 10 are respectively connected with partial annular channels 11 , 12 provided in the shell parts 7 , 7 ′. In the ...

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PUM

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Abstract

The invention relates to a side-channel pump (1) for pumping a medium by means of an impeller (4) having a ring of rotor chambers (13, 14), comprising pockets (20) in a radially outer region delimited by the rotor chambers (13, 14). The pockets (20) are filled by means of leakage with the medium to be pumped and create an axial force on the impeller (4). Therefore, the impeller (4) is reliably held in the side-channel pump (1).

Description

technical field [0001] The invention relates to a side channel pump for conveying a medium from an inlet pipe to an outlet pipe, having: a driven impeller rotatable in a pump casing; at least one rim vane chamber arranged in one of the end faces of the impeller ; At least one partial annular passage arranged in the pump casing, opposite to the rim vane chamber, extending from the inlet pipe to the outlet pipe; radially outside the rim of the blade chamber, the edge on the end face of the impeller and the opposite a section of the pump casing arranged at the edge; and an annular gap arranged between the edge of the impeller and the section of the pump casing. Background technique [0002] Such side channel pumps are used, for example, in today's motor vehicles, in particular for the delivery of fuel or window washer, and are known from practice. The pump casing consists of two casing parts spaced apart from a spacer ring dimensioned to match the height of the impeller. In o...

Claims

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Application Information

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IPC IPC(8): F04D5/00F04D29/18F04D29/041
CPCF04D29/0413F04D5/002F04D29/188F04D29/18F04D5/00F04D29/041
Inventor 埃伯哈德·盖塞尔
Owner CONTINENTAL AUTOMOTIVE GMBH