Front windscreen/rear window washer`s water reheating device for motor vehicle, has double-walled sealed hollow body placed under vacuum for constituting insulating screen between degassing tank and wall

摘要

#CMT# #/CMT# The device has a washing water tank (4) partially surrounding a pressurized degassing tank (1) of an engine cooling circuit, where the tank (1) includes a wall that is mounted in an engine compartment. An intermediate space is arranged around the tank (1), and includes a double-walled sealed hollow body (6) placed under vacuum for constituting a closed thermal insulating screen between the tank (1) and the wall. Extensions (7) are directed toward interior of the tank (4) for increasing a surface of the wall washed by water and a thermal exchange surface heated by calories from the tank (1). #CMT#USE : #/CMT# Used for reheating water of a washer on a front windscreen or a rear window of a motor vehicle for cleaning a headlight and a glazed surface of the vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The double-walled sealed hollow body of the intermediate space is placed under vacuum for constituting the closed thermal insulating screen between the degassing tank and the wall, thus permitting to sample only the calories in the cooling circuit from specific temperature of the liquid and avoiding sudden changes of temperature of the liquid inside the degassing tank, and hence producing better operation of the engine, and transferring the calories of the liquid contained in the cooling circuit and water in the water tank in a progressive manner, without jerks. The device permits to reheat the water in the washing tank without exterior intervention, thus permitting to efficiently use the water for cleaning the headlight or glazed surface of the vehicle. The configuration of the device permits the water in the washing tank to be carried to specific temperature without modifying the conditions of utilization of the degassing tank. The configuration of the device permits to reduce the high mixing voltage and to limit the vaporization of liquid during the operation of the engine. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial sectional perspective view of a front windscreen/rear window washer`s water reheating device. 1 : Pressurized degassing tank 4 : Washing water tank 6 : Double-walled sealed hollow body 7 : Extensions 10 : Base.