Heat exchanger

A heat exchanger comprising:

• a hollow jacket element having a longitudinal axis and a channel for a flow of medium therethrough;
• an insert element disposed concentrically within said hollow jacket element and longitudinally on said axis, said insert element including an insert jacket element and at least one web element having a first end and a second end, said first end and said second end being connected to said channel of said jacket element at different locations thereof, said at least one web element having a web element channel extending from said first end to said second end;
• and
• an intermediate jacket element is arranged concentrically between said insert jacket element and said jacket element, wherein the insert jacket element includes an insert jacket channel which is fluid-conductively connected to one of a plurality of web element channels, and wherein the insert jacket channel is fluidly connected to an intermediate jacket element channel.

A method for producing a heat exchanger, which comprises an insert element and a jacket element, wherein the insert element comprises at least one web element arranged in a non-zero angle with respect to a main flow direction and an insert jacket element fixedly connected to the web element, wherein the web element and the insert jacket element are manufactured by a method from the group consisting of gluing, soldering, casting, an additive manufacturing method, welding method, a clamping method or a shrink-fitting method, wherein the web element comprises a web element channel which is produced by the casting method together with the insert jacket element or produced in a further step by means of a drilling method or an erosion method, wherein the web element channel extends from a first end of the web element to a second end of the web element, wherein the insert element is positioned in the jacket element, wherein an intermediate jacket element is arranged between the insert element and the jacket element, which has a first intermediate jacket element channel and a second intermediate jacket element channel, the intermediate jacket element being positioned in the jacket element and the insert element being positioned in the intermediate jacket element such that a heat transfer fluid can flow through the jacket channel to the first intermediate jacket element channel into the web element channel and can flow through the web element channel and from the web element channel through the second intermediate jacket element channel into the jacket channel, wherein the insert jacket element includes an insert jacket channel which is fluid-conductively connected to one of a plurality of web element channels, and wherein the insert jacket channel is fluidly connected to an intermediate jacket element channel.