Highway truck with charge air cooling

Claim 1

A highway truck comprising: a mobile frame capable of being driven at speeds generating a significant ram air effect; an engine compartment mounted at the forward end of said frame and having a forwardly facing ambient air inlet disposed to receive ram air resulting from the forward travel of said trick at highway speeds; an engine mounted to said frame within said engine compartment, said engine including a charge air compressor having an air outlet, an intake manifold for receiving said charge air, a coolant inlet, a coolant outlet, and a cooling fan for drawing ambient air into said engine compartment through said ambient air inlet therein; an ambient-air-to-coolant heat exchanger fluidly disposed between said engine coolant inlet and said engine coolant outlet and operatively mounted to said mobile frame within said engine compartment, said heat exchanger having its ambient air passages disposed adjacent to said engine compartment inlet for receiving ambient air therethrough; an ambient-air-to-charge-air heat exchanger fluidly disposed between said charge air compressor and said intake manifold and operatively mounted within said engine compartment in vertically abutting alignment with said coolant heat exchanger, said charge air heat exchanger having its ambient air passages disposed adjacent to said engine compartment inlet for receiving ambient air therethrough, the ambient air flow paths through said coolant heat exchanger and said charge air heat exchanger being parallel; and a single fan shroud disposed about said fan and enclosing the space between said fan and both of said heat exchangers and channelling air drawn through both heat exchangers to said fan.