HEAT EXCHANGER FOR VEHICLE

摘要

A heat exchanger for a vehicle includes a heat radiating portion including first and second connecting lines formed alternately by stacking a plurality of plates, and receiving first and second operating fluids therethrough that heat-exchange with each other while circulating unmixed through the respective first and second connecting lines, a bifurcating portion connecting an inflow hole for flowing one of the first and second operating fluids with an exhaust hole for exhausting the one operating fluid to bypass the heat radiating portion according to a temperature of the one operating fluid, and a valve unit mounted at the inflow hole to selectively open one of the connecting lines by expansion and contraction of deformable material so as to flow the operating fluid selectively to the heat radiating portion or the bifurcating portion according to a temperature of the one operating fluid flowing into the inflow hole.

主权项

1. A heat exchanger for a vehicle, comprising:
a heat radiating portion including a first connecting line and a second connecting line formed alternately by a plurality of stacked plates, and receiving first and second operating fluids, respectively, the first and second operating fluids heat-exchanging with each other during circulation through the first and second connecting lines, wherein the first and second operating fluids supplying into the first and second connecting lines do not mixed with each other during circulation; and a bifurcating portion connecting an inflow hole for flowing one of the first and second operating fluids with an exhaust hole for exhausting the one operating fluid, to direct the one operating fluid to bypass the heat radiating portion according to a temperature of the one operating fluid; wherein the bifurcating portion includes a valve unit mounted at the inflow hole, selectively opening and closing one of the connecting lines of the heat radiating portion by expansion and contraction of a deformable material therein to direct the operating fluid selectively to the heat radiating portion or the bifurcating portion according to the temperature of the one operating fluid.