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supercharged internal combustion engine

A technology of internal combustion engine and compressor, applied in the direction of internal combustion piston engine, combustion engine, mechanical equipment, etc., can solve the problems of low engine power, increase of exhaust gas turbocharger speed, etc., to eliminate power reduction, cancel power reduction, The effect of rapid boost pressure build-up

Inactive Publication Date: 2016-06-29
ROLLS ROYCE SOLUTIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to system constraints, only a small amount of engine power can be realized with this supercharging, which is not sufficient, for example, for tracked vehicles
Furthermore, the problem arises for single-stage supercharging arranged at the nominal power point of the internal combustion engine that the rotational speed of the exhaust gas turbocharger increases due to a physical connection with increasing geodetic altitude

Method used

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  • supercharged internal combustion engine
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Examples

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Embodiment Construction

[0012] figure 1 A system diagram of an internal combustion engine 1 with booster components is shown. The booster assembly includes low pressure stage ND, high pressure stage HD and compressor 2 . The low pressure stage ND corresponds to the first boost stage. The high-pressure stage HD corresponds to the second charging stage and the compressor 2 then corresponds to the third charging stage. The low-pressure stage ND includes at least one exhaust gas turbocharger. In the exemplary embodiment shown, the low-pressure stage ND comprises a first exhaust gas turbocharger 3 and a second exhaust gas turbocharger 4 , while the high-pressure stage HD has only one exhaust gas turbocharger 5 . Each exhaust gas turbocharger consists of a compressor for feeding charge air and a turbine acted upon by the exhaust gas, for example a compressor 6 and a high-pressure turbine 7 of the high-pressure stage HD. An electrically actuatable turbine bypass valve 8 is arranged parallel to the high-...

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Abstract

A control and regulation method for a supercharged internal combustion engine is proposed, in which charge air is fed precompressed to the internal combustion engine in the high performance range (HLB) via a two-stage supercharging stage consisting of a low-pressure stage and a high-pressure stage, and in which In the low power range (NLB), the charge air precompressed by the two-stage supercharging is fed recompressed to the internal combustion engine via the compressor as the third supercharging stage.

Description

technical field [0001] The invention relates to a control and regulation method for a supercharged internal combustion engine, in which charge air is supplied to the internal combustion engine in a high-power range via a two-stage supercharging precompression consisting of a low-pressure stage and a high-pressure stage, and in which In the low power range, the charge air precompressed by the two-stage supercharging is fed recompressed to the internal combustion engine via the compressor as the third supercharging stage. Furthermore, the invention relates to a correspondingly adapted booster assembly. Background technique [0002] An internal combustion engine with an exhaust gas turbocharger is known from DE 199 05 112 A1, in which precompressed air is recompressed via a compressor, for example a Lutz compressor, in order to improve the response characteristics. Arranged parallel to the compressor is a bypass valve, which is closed at low engine speeds and opened when the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/00F02B33/40F02B37/013F02B37/16F02B37/18F02B39/10
CPCF02B37/001F02B37/004F02B37/013F02B37/04F02B37/16F02B37/18F02B39/04F02B39/10F02D41/0007Y02T10/12F02B33/40F02D23/00
Inventor A.弗洛尔
Owner ROLLS ROYCE SOLUTIONS GMBH