| 主权项 |
1. A heat exchanger for the feeding of fuel in an internal combustion engine provided with a cooling water circuit, having an inlet, connected to an outlet of a water radiator, and an outlet; and with a lubricant oil circuit, having an inlet and an outlet,
wherein the heat exchanger comprises: a first stage and a second stage (E1, E2), each having a base (b1,b2) provided with a water inlet and a water outlet, the base (b2) of the second stage (E2) having an oil inlet and an oil outlet, the first stage (E1) being provided with a fuel inlet nozzle and a fuel outlet nozzle, which are selectively connected, in parallel, to the supply of fuel to the engine; a connecting block having a first junction face and a second junction face (fj1,fj2), against which are respectively seated and affixed the bases (b1,b2) of the first stage and the second stage (E1,E2), and a mounting face (fm) seated and affixed to the engine (M), the connecting block defining: a return conduit, communicating the outlet of the cooling water circuit with the water inlet in the first stage (E1); an interconnecting conduit communicating the water outlet of the first stage (E1) with the water inlet of the second stage (E2); an outlet conduit communicating the water outlet of the second stage (E2) with an inlet of the water radiator; and two oil conduits, communicating the inlet and the outlet of the lubricant oil circuit with the oil inlet and oil outlet respectively, of the second stage (E2). |
