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Two-stage supercharging system

A technology of supercharger system and supercharger, which is applied in the direction of intake muffler, engine element, gas turbine device, etc., can solve the problems of low efficiency of turbocharger and increased pipeline cost, and achieves optimization of structure space and low pipeline cost. Effect

Inactive Publication Date: 2007-06-20
MAN B & W DIESEL AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The disadvantage of using two turbochargers connected in series known from the prior art is the increased piping effort for the line connection between the turbochargers and the required larger structural cavity
With the increase in pipeline costs, the efficiency of the series turbocharger is lower because of the flow loss in the pipeline

Method used

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  • Two-stage supercharging system
  • Two-stage supercharging system

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Embodiment Construction

[0017] FIG. 1 shows a first turbocharger 1 having a first shaft 3 on which an exhaust gas turbine 5 and a compressor rotor 7 are arranged. For the first turbocharger 1 is meant the high-pressure turbocharger, whose exhaust gas turbine 5 can accordingly be designed larger than the exhaust gas turbine in the low-pressure turbocharger in order to counteract the low moment of inertia of the exhaust gas flow . It should be pointed out that the diameter of the two exhaust gas turbines 5 , 6 is smaller compared to a one-stage turbocharger, so that the moment of inertia of the exhaust gas turbines is smaller compared to a one-stage construction.

[0018] The second turbocharger 2 has a second exhaust gas turbine 6 and a second compressor rotor 8 at each end of the shaft 4 . The shaft 4 is designed as a hollow shaft and is supported on the shaft 3 . This design makes it possible to achieve an overall compact construction of the charging system. Between the exhaust gas turbines 5 , 6...

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Abstract

Doublestage supercharging system has a first axial turbine supercharger (1) and a second axial turbine supercharger (2), the second axial turbine supercharger (2) has a hollow shaft, which can be rotatablely supported on the first axial turbine supercharger (2).

Description

technical field [0001] The invention relates to a charging system with two turbochargers connected in series. Background technique [0002] Radial turbochargers and axial turbochargers are known from the prior art. Axial turbochargers are used especially when higher power is required. Several turbochargers connected one behind the other are known from the automotive field, that is to say in the field of application of radial turbochargers, in order to achieve optimum efficiency over the entire operating range of the internal combustion engine. This means that a low-pressure turbocharger and a high-pressure turbocharger are used in combination to ensure a good supply of charge air to the internal combustion engine at part load. [0003] The disadvantage of using two turbochargers connected in series known from the prior art is the increased piping effort for the line connection between the turbochargers and the required larger structural cavity. With the increase in piping...

Claims

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Application Information

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IPC IPC(8): F02B37/013
CPCF02M35/12F05B2220/40F02B37/004Y02T10/144F02B37/22Y02T10/146F02B37/013F02C3/107F05D2250/291F05D2220/40F05D2250/311F02B29/0412F02C6/12F02B29/0475Y02T10/12F02B39/00
Inventor M·桑根
Owner MAN B & W DIESEL AS
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