Patent ID: 9322319
Filing Date: 2016-04-26
CPC Classification: F01P,F28D,F28F

Claim Text:
1. A heat exchanger for a vehicle, comprising: a heat exchanging portion provided with a first connecting line in a first layer and second connecting line and third connecting line in a second layer, the first and second layers formed alternately by stacking a plurality of plates, the heat exchanging portion being configured for receiving a first operating fluid into the first connecting line, second operating fluid into the second connecting line, and a third operating fluid into the third connecting line, wherein the second and a third operating fluids heat-exchange with the first operating fluid, while the first operating fluid flows into the first connecting line, the second operating fluid flows into the second connecting line, and the third operating fluid flows into the third connecting line and while the first, second, and third operating fluids are circulated without being mixed with each other; and a bifurcating portion connecting one of inflow holes formed to the heat exchanging portion for flowing one operating fluid of the first, second, and third operating fluids with one of exhaust holes formed to the heat exchanging portion for exhausting the one operating fluid, wherein the bifurcating portion is mounted at an exterior of the heat exchanging portion, and wherein the bifurcating portion bypasses the one operating fluid from the heat exchanging portion according to a temperature of the one operating fluid, wherein the inflow holes include first, second and third inflow holes and the exhaust hole includes first, second and third exhaust holes, wherein the first operating fluid flows into the heat exchanging portion through the first inflow hole and flows out from the heat exchanging portion through the first exhaust hole, and the first inflow hole is connected to the first exhaust hole through the first connecting line, wherein the second operating fluid flows into the heat exchanging portion through the second inflow hole and flows out from the heat exchanging portion through the second exhaust hole, and the second inflow hole is connected to the second exhaust hole through the second connecting line, wherein the third operating fluid flows into the heat exchanging portion through the third inflow hole and flows out from the heat exchanging portion through the third exhaust hole. and the third inflow hole is connected to the third exhaust hole through the third connecting line, wherein the first, second, and third inflow holes are placed along a first lateral side or a second lateral side of a surface of the heat exchanging portion in a longitudinal direction of the heat exchanging portion, wherein the first, second, and third exhaust holes are distanced from the first, second, and third inflow holes and are placed along the first and second lateral sides of the surface of the heat exchanging portion in the longitudinal direction of the heat exchanging portion, wherein the bifurcating portion includes: wherein the valve unit includes: wherein the deformable member is formed by overlapping and contracting a plurality of ring members with each other in a coil spring shape, wherein when temperature of the one operating fluid is a predetermined temperature or less, neighboring ring members of the deformable portion closely contact each other to block flow of the one operating fluid into the first inflow hole so that the one operating fluid bypasses to the exhaust port, and when the temperature of the one operating fluid is more than the predetermined temperature, the neighboring ring members of the deformable portion are distanced from each other so as to form a space through which the one operating fluid flows into the first inflow hole.