Patent ID: 9234604
Filing Date: 2016-01-12
CPC Classification: F01M,F01P,F16K,F28D,F28F

Claim Text:
1. A heat exchanger for a vehicle, comprising: a heat exchanging portion provided with a first connecting line, a second connecting line, and a third connecting line formed in a predetermined sequence by stacking a plurality of plates, wherein the heat exchanging portion is configured for receiving a first operating fluid into the first connecting line, a second operating fluid into the second connecting line, and a third operating fluid into the third connecting line, the first, second, and third operating fluids exchanging heat with each other while the first, second, and third operating fluids are circulated without being mixed with each other; and a bifurcating portion connecting a first inflow hole for flowing one operating fluid of the first, second, and third operating fluids with a first exhaust hole for exhausting the one operating fluid, wherein the bifurcating portion is adapted for the one operating fluid to bypass the heat exchanging portion according to a temperature of the one operating fluid, and wherein the bifurcating portion is mounted at an exterior of the heat exchanging portion, 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 a second inflow hole and flows out from the heat exchanging portion through a 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 a third inflow hole and flows out from the heat exchanging portion through a 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 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 disposed apart from the first, second, and third inflow holes and are placed along a second lateral side of the surface of the heat exchanging portion in the longitudinal direction of the heat exchanging portion, wherein the bifurcating portion comprises: wherein the operating fluid flowing into the inflow port bypasses to the exhaust port when bodies of the neighboring ring members closely contact with each other to block a flow passage between the inflow port and the heat exchanging portion port by the bodies thereof, or flows to the heat exchanging portion through a gap of the neighboring ring members when bodies of the neighboring ring members are spaced from each other, according to the heat of the operating fluid.