Patent ID: 9709338
Date: 2017-07-18
CPC Classifications: F28D,F28F

Claim:
1. A heat exchanger having a block of flat tubes arranged parallel to one another and having fins arranged between the flat tubes, wherein the flat tubes form flow ducts through which a refrigerant can flow, and a coolant can flow around the flat tubes, wherein the flat tubes are in fluid communication, at their end regions, with collecting tanks, wherein the refrigerant can be made to flow into an inflow region of a collecting tank which is in fluid communication with at least one of the flow ducts, wherein the inflow region has a line, which extends through the inflow region, for the inflow of the refrigerant, wherein the line has a single inflow opening or a plurality of openings grouped together in a central region along the length and the width of the line such that the central region has a length no longer than one quarter of a length of the line in the collecting tank, wherein the line has no further inflow openings outside of the central region, wherein a refrigerant passage is provided from the line to the inflow region of the collecting tank, said refrigerant passage being arranged in the central region of the inflow region of the collecting tank, wherein the central region is in relation to a direction oriented perpendicularly to a plane of the flat tubes, wherein an outer dimension of the line is in a ratio of 0.25 to 0.5 with respect to an inner dimension of the collecting tank.