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Pressure wave supercharger

a supercharger and pressure wave technology, applied in the direction of machines/engines, pump components, mechanical apparatuses, etc., can solve the problems of adversely affecting the power loss of the rotor drive and the structural size, and achieve the reduction of the mass moment of inertia, compact size, and reduced total system length

Inactive Publication Date: 2012-03-22
BENTELER AUTOMOBILTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a pressure wave supercharger with an electric motor that is integrated into the housing of the supercharger. This eliminates the need for a separate motor housing, saving weight and space. The electric motor is supported by a bearing assembly that also supports the cell rotor, reducing friction and power loss. The bearing assembly includes a bearing pin that is connected to the housing and surrounded by the rotating member of the electric motor. The electric motor is accommodated inside the cell rotor, reducing the length of the cell rotor. The pressure wave supercharger is compact, lightweight, and requires less installation space. The invention also includes an axial compressor to raise the pressure level of cooling air being drawn into the cell rotor. Cooling of the stator winding is achieved through the laminated stator core and the intake of fresh air. The invention provides a more efficient and compact pressure wave supercharger with reduced weight and space requirements.

Problems solved by technology

The individual lengths and the individual frictions encountered in the bearings add to a total length and total friction, respectively, which adversely affect power loss of the rotor drive and structural size.

Method used

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Embodiment Construction

[0029]Throughout all the figures, same or corresponding elements may generally be indicated by same reference numerals. These depicted embodiments are to be understood as illustrative of the invention and not as limiting in any way. It should also be understood that the figures are not necessarily to scale and that the embodiments are sometimes illustrated by graphic symbols, phantom lines, diagrammatic representations and fragmentary views. In certain instances, details which are not necessary for an understanding of the present invention or which render other details difficult to perceive may have been omitted.

[0030]Turning now to the drawing, and in particular to FIG. 1, there is shown a schematic illustration of one embodiment of a drive unit for operating a pressure wave supercharger of which only a cell rotor 2 is illustrated for the sake of simplicity. The cell rotor 2 is rotatably supported in a housing which is not shown here in greater detail. The drive unit includes an el...

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Abstract

A pressure wave supercharger includes a cell rotor which is arranged in the housing and driven by an electric motor. The electric motor includes a rotating member which is connected to the cell rotor, and a fixed member. A bearing assembly is provided to simultaneously support the cell rotor within the housing and the rotating member in relation to the fixed member.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application claims the priority of German Patent Application, Serial No. 10 2010 011 147.3-15, filed Mar. 11, 2010, pursuant to 35 U.S.C. 119(a)-(d), the content of which is incorporated herein by reference in its entirety as if fully set forth herein.BACKGROUND OF THE INVENTION[0002]The present invention relates to a pressure wave supercharger for installation on an internal combustion engine of a motor vehicle.[0003]The following discussion of related art is provided to assist the reader in understanding the advantages of the invention, and is not to be construed as an admission that this related art is prior art to this invention.[0004]Internal combustion engines for motor vehicles are supercharged to increase efficiency. The gas exchange is improved during the intake cycle through increase of the charging degree of the cylinder. Supercharged engines consume less fuel compared to engines that are not charged. A supercharged motor...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04F99/00
CPCF02B33/42F04F13/00
Inventor GLITZ, GEORGRABE, FRANKARASZKIEWICZ, JAN
Owner BENTELER AUTOMOBILTECHNIK GMBH