ADDITIONAL HEATING SYSTEM

• Main Authors: REISER, PETER, BAUER, DIETER, PFISTER, WOLFGANG, LOHLE, MICHAEL, HUMBURG, MICHAEL, SCHWEIZER, GEBHARD
• Format: Patent
• Language: English; French
• Published: 14.09.2004
• Edition: 6
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; COMBUSTION ENGINES; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

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.