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Fuel Injection for Individual Rail Combinations

A fuel and injector technology, applied in low-pressure fuel injection, fuel injection device, charging system, etc., can solve problems such as complicated fuel pipeline wiring

Active Publication Date: 2021-04-16
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, this configuration complicates the routing of the fuel lines, as each fuel line must be optimized to feed an independent fuel injection system

Method used

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  • Fuel Injection for Individual Rail Combinations
  • Fuel Injection for Individual Rail Combinations
  • Fuel Injection for Individual Rail Combinations

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The following detailed description relates to methods and systems for delivering fuel to cylinders of an engine via a fuel distribution injector system that supplies fuel to both direct injectors and port fuel injectors. figure 1 An example embodiment is given for a cylinder in an internal combustion engine, while figure 2 depicts features that can be compared with figure 1 An example fuel system of a fuel distribution injector system for use with an engine. The controller can be configured to perform tasks such as Figure 4 A control routine of an example routine of the present invention to adjust delivery of fuel from a fuel distribution injector system to one or more of a direct injector and a port injector based on the determined fuel injection profile. The fuel injection profile is based on engine operating conditions, such as in image 3 depicted in the map of . The controller can also perform functions such as Figure 5 The control routine of the example ro...

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PUM

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Abstract

The present application provides methods and systems for regulating the operation of an internal combustion engine configured for dual fuel injection from a single fuel rail. In one example, a method includes directing fuel from a common high-pressure fuel rail to one or more of a direct injector and a port injector, where each of the direct injector and the port injector is coupled to the cylinders of the engine. The flow of fuel from the individual fuel rail to the direct injectors and port injectors is regulated through flow selection valves.

Description

technical field [0001] The present invention generally relates to methods and systems for regulating the operation of an internal combustion engine configured for dual fuel injection from a single fuel rail. Background technique [0002] Engines may be configured with various fuel systems used to deliver a desired amount of fuel to the engine for combustion. One type of fuel system includes port fuel injectors and direct fuel injectors for each engine cylinder. Port-only fuel injectors may be operated to improve fuel vaporization at lower loads and reduce engine emissions as well as reduce pumping losses and fuel consumption. Only direct fuel injectors are operated to improve engine performance and fuel consumption at higher loads. Additionally, both port injectors and direct injectors may be operated together under some conditions to take advantage of both types of fuel delivery. [0003] In engines configured with a dual injection system (ie, engines enabled with both d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M43/04F02M55/00F02M41/00
CPCF02M41/00F02M43/04F02M55/008F02D41/3023F02D41/3094F02D41/345F02D41/3836F02D41/402F02D2250/04F02M63/0225F02M69/046Y02T10/40F02M39/005F02M55/025F02D2041/389
Inventor R·F·莫雷诺
Owner FORD GLOBAL TECH LLC