Air management system for heavy duty truck under-hood heat...

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 11/08 (2006.01) B60K 11/00 (2006.01)

Patent

CA 2667958

A system for removing heat from the engine compartment (9) of a heavy duty truck (2). A first ventilating system (21) removes heat from the radiator (7). It is separated from a second ventilating system (51) that removes heat from the engine compartment (9). The first system takes heat from the radiator through a plenum (23) by centrifugal squirrel cage blowers (27), and is directs it out to ambient by ductwork. The second system draws ambient air generally from back to front of the engine compartment, preferably by cowl induction (53), without the use of ram air from the vicinity of the radiator. The exits of the two systems are into a slip stream of the heavy duty truck, and the exit of the second ventilating system is into a slip stream of the first, to scavenge air out of the engine compartment.

L'invention concerne un système permettant d'extraire la chaleur du compartiment moteur (9) d'un camion poids lourd (2). Un premier système de ventilation (21) extrait la chaleur du radiateur (7). Il est séparé d'un second système de ventilation (51) qui extrait la chaleur du compartiment moteur (9). Le premier système extrait la chaleur du radiateur à travers un plénum (23) par des souffleries à cage d'écureuil centrifuges (27), et la dirige dans l'atmosphère à travers des conduits. Le second système aspire l'air ambiant généralement de l'arrière vers l'avant du compartiment moteur, de préférence par une prise d'air sur capot (53), sans utiliser d'air dynamique du voisinage du radiateur. Les sorties des deux systèmes sont dirigées vers un courant de glissement du poids lourd, et la sortie du second système de ventilation passe dans un courant de glissement du premier, pour expurger l'air du compartiment moteur.

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