Internal combustion engine

A technology of internal combustion engine and combustion engine, applied in the direction of internal combustion piston engine, combustion engine, liquid fuel engine, etc., to achieve the effect of avoiding throttling loss

Active Publication Date: 2015-11-04
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Not only the inlet line of the ND-AGR but also the regulator should be arranged as close as possible in front of the impeller of the compressor due to functional constraints, which leads to a competing installation space situation

Method used

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  • Internal combustion engine
  • Internal combustion engine
  • Internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0033] figure 1 with 3 A first embodiment of a radial compressor 10 and a regulator 12 for an internal combustion engine according to the invention is shown in schematic longitudinal section.

[0034] The regulator 12 includes a tubular housing 14 which can be integrated into the fresh gas line of the internal combustion engine upstream of the radial compressor 1 . In this case, the housing 14 is connected downstream directly on the inlet side to the radial compressor 10 . Inside the housing 14 is arranged a wall system 16 which in the present embodiment comprises two half-shell-shaped or vane-shaped wall elements 18 which are rotatably supported at their upstream ends on the inside of the housing 14 place. At these ends, the two wall elements 18 have an approximately semicircular cross-section. In the direction of the downstream end, the length of the partially circular cross-section of the wall element 18 decreases continuously, wherein, in Figures 1 to 4 The reduction...

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Abstract

The invention relates to an internal combustion engine with a combustion engine, an exhaust gas line, a fresh gas line, a turbocharger with a turbine integrated into the exhaust gas line, a compressor integrated into the fresh gas line, and a trim plate (12), by means of which the cross section of the compressor inflow can be adjusted. The internal combustion engine is characterized by a low-pressure exhaust gas recirculation system, by means of which exhaust gas downstream of the turbine is removed from the exhaust gas line and can be introduced into the fresh gas line upstream of the compressor, wherein an opening of the low-pressure exhaust gas recirculation system is arranged in the region of the trim plate (12).

Description

technical field [0001] The invention relates to an internal combustion engine with a combustion engine (Verbrennungsmotor), an exhaust gas line, a fresh gas line (Frischgasstrang), an exhaust gas turbocharger with a turbine integrated into the exhaust gas line and a compressor integrated into the fresh gas line And a regulator (Trimsteller), by means of which the cross-section of the compressor inlet flow (Verdichteranströmung) can be changed. Background technique [0002] The fresh gas delivered via the fresh gas line of the combustion engine is compressed in the compressor. In this case, the pressure increase is dependent on the rotational speed of the impeller of the compressor (Laufrad) and the mass flow (Massenstrom) of the fresh gas guided via the impeller. In the direction of the pump limit (Pumpgrenze) of the compressor characteristic field (Verdichterkennfeld) due to the reduced inflow speed relative to the peripheral speed, the inflow of the inlet edge of the impe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07
CPCF02M25/0712F02B37/225F02M25/0709F02M25/0739F02M25/0798F04D25/024F04D27/0238F04D29/4213F04D29/464Y02T10/121F02M26/06F02M26/09F02M26/34F02M26/51F05D2220/40F05D2250/51
Inventor M.格赖纳O.欣里希斯J.卡迈尔P.阿尔伯蒂
Owner VOLKSWAGEN AG
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