Additional heating system

B - Operations – Transporting – 60 – H

Patent

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Details

B60H 1/03 (2006.01) F02N 19/10 (2010.01) F01P 3/20 (2006.01) F28D 1/04 (2006.01) F01P 5/04 (2006.01) F01P 5/10 (2006.01) F01P 5/12 (2006.01) F01P 7/16 (2006.01) F01P 11/02 (2006.01) F01P 11/10 (2006.01) F01P 11/20 (2006.01)

Patent

CA 2201912

The invention relates to the arrangement of an additional heater for the coolant circuit of an internal combustion engine of a motor vehicle, which coolant circuit comprises, on the one hand, a cooling circuit including the coolant/air radiator and, on the other hand, a heating circuit including the coolant/air heat exchanger for heating the passenger compartment. The technical problem with coolant circuits of modern engines, in particular diesel engines, consists, inter alia, in the fact that too little heat is available for the heating - consequently so-called additional heaters are used, e.g. fuel heaters. It is proposed to arrange the additional heater, which is configured as a fuel heater with a burner part and a heat exchanger part, directly on the coolant/air radiator of the vehicle or to integrate it into the radiator. This arrangement has the advantage that the burner with its fuel and exhaust gas lines is located outside the passenger compartment of the motor vehicle and thus does not adversely affect comfort and safety in the passenger compartment. Additionally, the flow-related inclusion of the additional heater in the coolant circuit is simpler and more cost-effective.

L'invention concerne la configuration d'un chauffage supplémentaire (20, 20a, 82, 83) pour le circuit de refroidissement du moteur à combustion interne d'une automobile, qui comprend d'une part un circuit de refroidissement intégrant le refroidisseur à réfrigérant/à air (1, 70) et d'autre part un circuit de chauffage intégrant l'échangeur de chaleur à réfrigérant/à air, pour chauffer l'habitacle du véhicule. Le problème technique que posent les circuits de réfrigérant de moteurs modernes, notamment ceux des moteurs Diesel, réside entre autres dans le fait que la chaleur disponible pour le chauffage n'est pas suffisante, ce qui implique l'utilisation de dispositifs de chauffage additionnels, . Il est prévu de monter le dispositif de chauffage additionnel (20, 20a, 82, 83) qui se présente sous forme de chauffage à combustible, avec un brûleur (20) et un échangeur de chaleur (20a), directement sur le refroidisseur à réfrigérant/à air du véhicule, ou de l'intégrer dans le refroidisseur. Cette configuration présente l'avantage qu'avec ses conduites de combustible (21) et de gaz brûlé (22), le brûleur (20) se trouve en dehors de l'habitacle de l'automobile et n'en altère ainsi ni le confort ni la sécurité. En outre, en termes de technique de circulation, l'intégration du dispositif de chauffage additionnel dans le circuit de refroidissement est plus simple et plus économique.

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