Abstract: There is disclosed in one example a heat dissipator for an electronic apparatus, including: a planar vapor chamber having a substantially rectangular form factor, wherein a second dimension d2 of the rectangular form factor is at least approximately twice a first dimension d1 of the rectangular form factor; a first fan and second fan; and a first heat pipe and second heat pipe discrete from the planar vapor chamber and disposed along first and second d1 edges of the planar vapor chamber, further disposed to conduct heat from the first and second d1 edges to the first and second fan respectively.

Abstract: An air intake plenum (100) disposed in an air induction channel (112) in a hood (116) defined by a bottom channel wall (120), a rear hood reinforcement wall (122), a cab wall (124), and an exterior skin (126), where the air induction channel extends between an air inlet (114) laying in a plane generally parallel with the direction of travel “T” of the vehicle to an air outlet (118), includes a plenum inlet (128). The plenum inlet (128) is generally co-planar with the air inlet (114) of the air induction channel (112). At least one side wall (136, 138) extends from the plenum inlet (128) to a plenum outlet (144) and is angled downwards towards the bottom channel wall (120). Air through the plenum inlet (128) impinges against the side wall (136, 138), exits the plenum outlet (144), and is directed to impinge against the bottom channel wall (120) of the air induction channel (112) where contaminants drop out of the air.

Abstract: An air intake plenum (100) disposed in an air induction channel (112) in a hood (116) defined by a bottom channel wall (120), a rear hood reinforcement wall (122), a cab wall (124), and an exterior skin (126), where the air induction channel extends between an air inlet (114) laying in a plane generally parallel with the direction of travel “T” of the vehicle to an air outlet (118), includes a plenum inlet (128). The plenum inlet (128) is generally co-planar with the air inlet (114) of the air induction channel (112). At least one side wall (136, 138) extends from the plenum inlet (128) to a plenum outlet (144) and is angled downwards towards the bottom channel wall (120). Air through the plenum inlet (128) impinges against the side wall (136, 138), exits the plenum outlet (144), and is directed to impinge against the bottom channel wall (120) of the air induction channel (112) where contaminants drop out of the air.