US 9,810,182 B2
Heat exchanger for the feeding of fuel in an internal combustion engine
Tadeu Miguel Malagó Amaral, São Paulo-SP (BR); and Edson Valdomiro de Azevedo Júnior, São Paulo-SP (BR)
Assigned to MAHLE METAL LEVE S.A., Jundiai-SP (BR)
Appl. No. 14/901,184
Filed by MAHLE METAL LEVE S.A., Jundiaí-SP (BR)
PCT Filed Jul. 1, 2014, PCT No. PCT/BR2014/000215
§ 371(c)(1), (2) Date Dec. 28, 2015,
PCT Pub. No. WO2015/000046, PCT Pub. Date Jan. 8, 2015.
Claims priority of application No. 1020130170950 (BR), filed on Jul. 2, 2013.
Prior Publication US 2016/0160813 A1, Jun. 9, 2016
Int. Cl. F28F 3/08 (2006.01); F02M 31/14 (2006.01); F01M 5/00 (2006.01); F02M 31/10 (2006.01); F28F 9/26 (2006.01); F28D 9/00 (2006.01); F01P 3/20 (2006.01); F01P 11/08 (2006.01); F28D 21/00 (2006.01); F28F 9/00 (2006.01)
CPC F02M 31/14 (2013.01) [F01M 5/002 (2013.01); F01P 3/20 (2013.01); F01P 11/08 (2013.01); F02M 31/10 (2013.01); F02M 31/102 (2013.01); F28D 9/005 (2013.01); F28D 21/00 (2013.01); F28F 9/26 (2013.01); F28D 2021/008 (2013.01); F28D 2021/0026 (2013.01); F28D 2021/0089 (2013.01); F28F 2009/004 (2013.01); F28F 2280/06 (2013.01); Y02T 10/126 (2013.01)] 10 Claims
OG exemplary drawing
 
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, each having a base provided with a water inlet and a water outlet, the base of the second stage having an oil inlet and an oil outlet, the first stage 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 (M);
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;
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).