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US 11,339,738 B2Granted
System and method of managing the temperature of fuel injected into internal combustion engines
AssigneeRobert Bosch Limitada
InventorsFernando Lepsch, Marcello Francisco Brunocilla, Fernando de Oliveira Junior
Life of this patent
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Abstract
A system and a method of controlling the temperature of fuel injected into combustion engines, which provides a reduced amount of fuel injected into engines propelled with either pure gasoline or ethanol or any bi-fuel mixture by precisely controlling the amount of heat supplied to the fuel.
Claims8
A method of managing the temperature of fuel injected into internal combustion engines, being provided with:
- at least one fuel transporting line (11);
- at least one fuel distribution system (12) associated with the fuel transporting line (11) having at least one main duct (121) and at least one branch (122);
- a fuel injecting device (14) associated with the branch (122) and at least one fuel heating device (13) provided with a heating chamber (131), said heating device (13) being placed adjacent to the fuel injecting device;
- at least one electronic control device (2) associated with the fuel injecting device (14);
- and
- at least one fuel heating control device (3) associated with the electronic control device (2) and associated with at least one fuel heater (13);
- characterized in that the method comprises the steps of:
- measuring an upstream fuel temperature, the upstream fuel temperature being measured at a location upstream of the heating device (13) and by means of a temperature sensor (4) associated with the fuel distribution system (12);
- reading the fuel flow rate by the electronic control device (2);
- reading a previously entered and stored target downstream fuel temperature, the target downstream fuel temperature correlating to a fuel temperature at a location downstream of the heating device (13);
- sending to the electronic control device (2) at least one signal referring to the upstream fuel temperature and at least one signal referring to the fuel flow rate;
- processing the at least one signal referring to the upstream fuel temperature and processing the at least one signal referring to the fuel flow rate;
- and
- performing an action.
11 more elements
A system for managing the temperature of fuel injected into internal combustion engines, the system comprising:
- at least one fuel transporting line (11);
- at least one fuel distribution system (12) associated with the fuel transporting line (11) having at least one main duct (121) and at least one branch (122);
- a fuel injecting device (14) associated with the branch (122) and at least one fuel heating device (13) provided with a heating chamber (131), said at least one fuel heating device (13) being placed adjacent to the fuel injecting device;
- at least one electronic control device (2) associated with the fuel injecting device (14);
- and
- at least one fuel heating control device (3) associated with the electronic control device (2) and associated with at least one fuel heating device (13);
- characterized in that the system comprises at least one temperature sensor (4) mechanically associated with the fuel distribution system (12) and electrically associated with the at least one electronic control device (2),
- wherein at least one fuel heating device (13) includes a heating chamber (131) provided with a fuel inlet portion (132) and a fuel outlet portion (133) distal from the fuel inlet portion (132), and
- wherein the fuel inlet portion (132) is placed at a lower region of said heating chamber (131) and the fuel outlet portion (133) is placed at an upper region of said heating chamber (131).
6 more elements
Dependencies are inferred from the claim text.