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Air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler for motor vehicles

A technology for exhaust gas coolers and heat exchangers, which is applied in the direction of heat exchanger types, indirect heat exchangers, lighting and heating equipment, and can solve cooling problems and other issues

Inactive Publication Date: 2007-11-14
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known liquid-cooled exhaust gas cooler is very efficient, but has the following disadvantage: the cooling of the exhaust gas depends on the temperature of the coolant, which has a temperature of 80 to 100 °C

Method used

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  • Air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler for motor vehicles
  • Air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler for motor vehicles
  • Air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler for motor vehicles

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Embodiment Construction

[0039] Fig. 1 is an exploded view of an exhaust gas cooler 1 according to the invention, ie parts or assemblies are disassembled. The exhaust gas cooler 1 is used for cooling the exhaust gas of the exhaust gas recirculation system of the internal combustion engine of the vehicle, and this system will be described in detail in FIG. 4 below. The exhaust gas cooler 1 according to the invention has a tube-fin core 2 consisting of flat tubes 3 and corrugated fins 4 arranged between the flat tubes. The corrugated fins 4 are brazed or welded to the flat tubes to form a compact core 2 . The corrugated fins 4 are penetrated by ambient air and have fish scales (not shown) for improving the heat exchange with the air, which are the same as those on the corrugated fins of known coolant radiators. The corrugated fins 4 can be replaced by so-called plate fins, also not shown, which are curved fins with offset flanges. Generally speaking, the heat exchange efficiency of plate fins is low. ...

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Abstract

To provide an image processing method which easily constructs an indoor space model of high reality in a virtual space and provides a person, who wants to buy a house, with more realistic VR pictures, and also provide a program therefor. Actual pictures of an indoor space photographed with a plurality of photographing devices are obtained, and the obtained actual pictures are compared with virtual pictures obtained by viewing the virtual model of the same indoor model from virtual viewpoints to compute a correlation between the actual pictures and the virtual model. Then, the surface area of the virtual model for mapping the textures of the actual pictures is designated, and the partial areas of the actual pictures after conversion of their forms are mapped to the surface area. Then, the VR images obtained by viewing the virtual model after the texture mapping from arbitrary viewpoints are generated and displayed on a display device.

Description

technical field [0001] The invention relates to an air-cooled exhaust gas heat exchanger, in particular a vehicle exhaust gas cooler, and to an arrangement of an exhaust gas recirculation system. Background technique [0002] In today's motor vehicles, in particular commercial vehicles, exhaust gas coolers are used in exhaust gas recirculation systems (AGR systems) to cool the recirculated exhaust gases. According to the law, the exhaust gas recirculation system is used to reduce the fuel consumption of internal combustion engines and to reduce harmful substances in the exhaust gases of internal combustion engines (especially NO x ). Exhaust gas coolers currently installed in vehicles are cooled by coolant, which comes from the cooling circuit of the internal combustion engine. This known liquid-cooled exhaust gas cooler is very efficient, but has the disadvantage that the cooling of the exhaust gas depends on the temperature of the cooling liquid, which is 80 to 100°C. T...

Claims

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Application Information

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IPC IPC(8): F28D1/053
CPCY02T10/146Y02T10/121
Inventor 约尔格·迪格尔彼得·格斯克斯克劳斯·伊姆勒弗兰克·冯吕茨奥
Owner BEHR GMBH & CO KG
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