HEAT EXCHANGER WITH BYPASS VALVE AND THERMAL FUSE

A heat exchanger (50), has a heat exchanger core (51) having an inlet (50I), an outlet (500), at least one first conduit (52) connecting the inlet (50l) to the outlet (50O), at least one second conduit (53) in heat exchange relationship with the at least one first conduit (52), a bypass conduit (56) connecting the inlet (50I) to the outlet (50O) while bypassing the at least one first conduit (52), and a valve (60) in communication with the bypass conduit (56). The valve (60) has a valve member movable between a closed position in which fluid communication through the valve (60) and via the bypass conduit (56) is blocked and an open position in which fluid communication through the bypass conduit (56) and through the valve (60) is permitted, the valve member defining an auxiliary passage, and a thermal fuse overlapping the auxiliary passage and blocking fluid communication through the valve member via the auxiliary passage.