Heat exchanger for thermal management systems for the feeding of fuel in internal combustion engines

A heat exchanger for thermal management systems for the feeding of fuel in internal combustion engines (M) internally provided with a cooling water circuit, having an inlet, connected to an outlet of a water radiator, by means of a cooled water conduit, external to the engine (M), and an outlet connected to the water radiator by means of a hot water conduit external to the engine (M);

• and with a lubricant oil circuit having an inlet and an outlet, wherein the heat exchanger (HE) comprises an inlet and an outlet of water, respectively connected, in series, to the outlet of the water radiator, by means of the cooled water conduit and of the cooling water circuit, and with the inlet of the water radiator, by means of a return conduit and through the hot water conduit;
• a fuel inlet nozzle and a fuel outlet nozzle, selectively connected, in parallel, to the fuel supply to the engine (M);
• and an inlet and an outlet of lubricant oil, respectively connected to the outlet and to the inlet of the lubricant oil circuit by means of respective oil conduits, wherein:
• the fuel inlet and outlet nozzles are provided at one side of the heat exchanger (HE) other than the side of the heat exchanger (HE) in which are provided the inlet and outlet of water and the inlet and outlet of lubricant oil;
• and the heat exchanger is mounted to a support (S) comprising a flange, against one side of which is seated and secured the heat exchanger (HE) and a spacing rod, having one side secured to the flange and an opposite side affixed to the engine (M), said flange presenting through holes in which are respectively defined the inlet and the outlet of water and the inlet and the outlet of oil.

A heat exchanger for thermal management systems for the feeding of fuel in internal combustion engines (M) internally provided with a cooling water circuit, having an inlet, connected to an outlet of a water radiator, by means of a cooled water conduit, external to the engine (M), and an outlet connected to the water radiator by means of a hot water conduit external to the engine (M);

• and with a lubricant oil circuit having an inlet and an outlet, wherein the heat exchanger (HE) comprises:
• an inlet and an outlet of water, respectively connected, in series, to the outlet of the water radiator, by means of the cooled water conduit and of the cooling water circuit, and with the inlet of the water radiator, by means of a return conduit and through the hot water conduit;
• a fuel inlet nozzle and a fuel outlet nozzle, selectively connected, in parallel, to the fuel supply to the engine (M);
• and an inlet and an outlet of lubricant oil, respectively connected to the outlet and to the inlet of the lubricant oil circuit by means of respective oil conduits, wherein:
• the fuel inlet and outlet nozzles are provided at one side of the heat exchanger (HE) other than the side of the heat exchanger (HE) in which are provided the inlet and outlet of water and the inlet and outlet of lubricant oil;
• and the heat exchanger comprises a pack (P) of chambers, formed by a first, a second and a third group (G1, G2, G3) of overlapped chambers, every two adjacent chambers belonging to different groups, and the chambers of each group having regions spaced apart from each other and held each in fluid communication with a respective conduit having an inner end open to an end chamber of the respective group and an outer end;
• the outer ends of the conduits of the first group (G1) of chambers being connected in series to the cooling water circuit, by means of the inlet and outlet of water;
• the outer ends of the conduits of the second group (G2) of chambers being selectively connected, in parallel, to the fuel feeding tube by means of the fuel inlet and outlet nozzles;
• and the outer ends of the conduits of the third group (G3) of chambers being connected to the lubricant oil circuit.