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Fuel delivery system for a multi-fuel engine

A technology for fuel delivery and internal combustion engines, which is applied in the direction of charging system, engine control, engine components, etc., and can solve problems affecting engine performance characteristics, engine knock intensity, overheating, etc.

Inactive Publication Date: 2010-02-03
FORD GLOBAL TECH LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In one example, one of the gasoline or ethanol fuels can be used up by the engine before the other, potentially affecting the engine's performance characteristics
For example, if ethanol is depleted or available less before gasoline, the occurrence or intensity of engine knock increases accordingly, or direct fuel injectors can overheat due to their ceasing to deliver ethanol fuel to the engine

Method used

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  • Fuel delivery system for a multi-fuel engine
  • Fuel delivery system for a multi-fuel engine
  • Fuel delivery system for a multi-fuel engine

Examples

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Embodiment Construction

[0017] The following disclosure describes fuel delivery systems that may be configured to deliver one or more different fuels to a fuel-burning engine. These fuels may include liquid fuels, gaseous fuels, or a combination of liquid and gaseous fuels. In some embodiments, the fuel-burning engine may form the engine system of a vehicle, including vehicles powered exclusively by fuel, hybrid electric vehicles (HEVs), and the like. Although a fuel-burning engine is described in the context of a vehicle's internal combustion engine, it should be understood that the various fuel delivery schemes described herein are not limited to the disclosed engine configurations or applications, but may be applied to other suitable configurations or applications where appropriate. in application.

[0018] In some embodiments, the fuel delivery system may be operated to deliver two or more fuels with different fuel compositions from two or more different fuel sources to the engine. In one non-l...

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Abstract

The invention relates to a fuel delivery system for a multi-fuel internal combustion engine. The fuel delivery system for the multi-fuel internal combustion engine and an approach for operating the fuel delivery system are provided. The fuel delivery system can be operated in two or more different fuel delivery modes according to operating conditions of the engine or fuel delivery system. A first example mode can be performed to concurrently deliver two or more fuels to the engine. A second example mode can be performed to transfer fuel from a first fuel storage tank to a second fuel storage tank. A third example mode can be performed to supply a fuel from a first fuel storage tank to at least two fuel injectors of each cylinder of the engine. In some embodiments, the various modes of operation may be selected by varying a fuel pressure that is provided by the fuel delivery system. The system and the method provided by the invention is good for inhibiting detonation and improving engine operation.

Description

technical field [0001] The present invention relates to a fuel delivery system for a multi-fuel internal combustion engine and a method of operating a fuel delivery system. Background technique [0002] A variety of fuel delivery systems may be used to provide the desired amount of fuel to the engine for combustion. One type of fuel delivery system includes a port fuel injector for each cylinder of the engine to deliver fuel to the respective cylinder. Another type of fuel delivery system includes a direct fuel injector for each cylinder of the engine to deliver fuel directly to the corresponding cylinder. [0003] Engines have been described that utilize multiple fuel injector positions per cylinder to deliver different fuel types. In the titles "Calculations of Knock Suppression in Highly Turbocharged Gasoline / Ethanol Engines Using Direct Ethanol Injection" ("Using Direct Ethanol Injection Highly Turbocharged Gasoline / Ethanol Engines Knock Suppression Calculations") and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/08F02D41/00
CPCF02D19/12F02M37/0088F02M37/0064
Inventor 罗斯·戴克斯特拉·珀西富尔约瑟夫·诺门·伊里拉尔夫·韦恩·坎宁安
Owner FORD GLOBAL TECH LLC
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