Title:
外部排気ガス再循環部を備えた内燃機関と暖房装置とを有する自動車
Document Type and Number:
Japanese Patent JP4256933
Kind Code:
B2
Abstract:
The invention relates to a motor vehicle with an internal combustion engine (10) with an external exhaust gas recirculation system in the form of an exhaust gas recirculation pipe (42) connecting an exhaust pipe to an inlet pipe (26). Said vehicle has a passenger compartment with a heater (60) having a heating circuit of a fluid heat conveying medium. The invention proposes that at least part of the structure of the exhaust recirculation pipe has two walls, and a coolant flows through the space formed therebetween (heat exchanger) (62) and releases directly or indirectly the heat removed from the exhaust gas to the heat conveying medium. Consequently, the heater (60) is provided with additional heating power with the result that additional heat frequently required in engines with a high degree of efficiency is not required for operation of the motor vehicle when outdoor temperatures are low. Moreover, nitrogen oxide emissions are positively affected by lowering the maximum combustion temperature, and consumption is reduced.
Inventors:
クーン・ヴィルヘルム
Application Number:
JP50115398A
Publication Date:
April 22, 2009
Filing Date:
June 04, 1997
Export Citation:
Assignee:
フオルクスワーゲン・アクチエンゲゼルシヤフトＶＯＬＫＳＷＡＧＥＮ ＡＫＴＩＥＮＧＥＳＥＬＬＳＣＨＡＦＴ
International Classes:
F02G5/04; F02M25/07; B60H1/02; B60H1/18; F02B47/08; F02G5/02; F02B3/06
Attorney, Agent or Firm:
奥村 義道
江崎 光史
鍛冶澤 實
江崎 光史
鍛冶澤 實
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