Heat exchanger with temperature-controlled valve

A heat exchanger, comprising:

• at least two plates positioned in a pack and fixed together to form separate channels for a first medium and a second medium between alternate pairs of plates, wherein a number of the plates including holes therein;
• an inlet and an outlet of the first medium associated with the channel for the first medium;
• an inlet and an outlet for the second medium associated with the channel for the second medium;
• and
• a temperature sensor operably connectable to a first valve to control the supply of the first medium through the heat exchanger, the first medium being intended to supply heat to the second medium, the temperature sensor being distinct from the plates and connectable to the plates with placement of the temperature sensor within the holes through the number of plates, said holes being provided in plates where ridges meet in the channels for the second medium, such that the temperature sensor is disposed within and surrounded by the channels for the second medium and in heat-conducting contact with the channels for the first medium via said plates, wherein the temperature sensor is to control the first valve, wherein the temperature sensor is positioned to be surrounded by channels for the second medium, wherein the channels and the respective inlets and outlets for the first medium and the second medium are configured to flow the first medium and the second medium in opposite directions, wherein the temperature sensor is placed at the inlet for the first medium and the outlet for the second medium, and wherein the temperature sensor is located proximate, but outside, the inlet for the first medium, the temperature sensor being located closer to the inlet for the first medium than to the outlet for the second medium.

A heat exchanger comprising:

• at least two plates placed in a pack and brazed together so that separate channels for a first medium and a second medium are formed between alternate pairs of plates;
• two pairs of connections for inlet and outlet of the first medium and inlet and outlet for the second medium, respectively;
• and
• a temperature sensor connected via a capillary tube to a first valve configured to control the supply of the first medium through the heat exchanger, the first medium being intended to supply heat to the second medium, the temperature sensor distinct from the plates and connectable to the plates with placement of the temperature sensor within holes through a number of plates, said holes being provided in plates where ridges meet in the channels for at least one of the first medium and the second medium, such that heat-conducting contact is achieved between the temperature sensor and said plates, wherein the temperature sensor is placed so that the temperature sensor is disposed within and surrounded by the channels for the second medium and in heat-conducting contact with the channels for the first medium via said plates, wherein the temperature sensor is arranged to control the first valve, wherein the first and second media are arranged to flow in opposite directions, wherein the temperature sensor is placed on that part of the heat exchanger where the inlet for the first medium and outlet for the second medium are located, and wherein the temperature sensor is located proximate, but outside, the inlet for the first medium, the temperature sensor being located closer to the inlet for the first medium than to the outlet for the second medium, wherein the temperature sensor includes a wax within the temperature sensor, the wax configured to change volume with a change in temperature, the first valve configured to be actuated with a change in volume of the wax, the change of volume being conveyed to the first valve using a hydraulic liquid within the capillary tube.