Heat exchanger

A heat exchanger comprising:

• a core in which a plurality of tubes are stacked;
• a first header tank located at an end of the plurality of tubes in a longitudinal direction of the plurality of tubes, the header tank in communication with the plurality of tubes;
• and
• a second header tank located at another end of the plurality of tubes in the longitudinal direction, wherein
• the first header tank includes:
• a first partition configured to divide an inside passage of the first header tank into a first tank and a second tank;
• a first inlet pipe configured to introduce a first fluid into the first tank;
• and
• a second inlet pipe configured to introduce a second fluid having a temperature range different from the first fluid into the second tank,
• the second header tank includes:
• a second partition configured to divide an inside passage of the second header tank into a third tank and a fourth tank, the third tank being in communication with the first tank, the fourth tank being in communication with the second tank;
• a first outlet pipe configured to discharge the first fluid from the third tank;
• and
• a second outlet pipe configured to discharge the second fluid from the fourth tank,
• the first inlet pipe is inclined at a predetermined angle except a right angle relative to an outer surface of the first header tank,
• a flow direction of the first fluid flowing from the first inlet pipe to the first tank includes a component in a predetermined direction that is a direction from a first end of the first tank at which the first partition is provided to a second end of the first tank opposite to the first end,
• the second inlet pipe is inclined at a predetermined angle except a right angle relative to the outer surface of the first header tank such that a flow direction of the second fluid flowing from the second inlet pipe to the second tank includes a component in a predetermined direction that is a direction from a first end of the second tank at which the first partition is provided to a second end of the second tank opposite to the first end,
• the first inlet pipe and the second inlet pipe are tilted, and
• an inlet side end of the first inlet pipe and an inlet side end of the second inlet pipe face each other and an outlet side end of the first inlet pipe and an outlet side end of the second inlet pipe face away from each other.