Unlock instant, AI-driven research and patent intelligence for your innovation.

Compression ignition engine with blended fuel injection

A fuel injector and fuel technology, which is applied to combustion engines, fuel injection devices, internal combustion piston engines, etc., can solve problems such as unconsidered emissions and emission reductions

Inactive Publication Date: 2012-12-05
CATERPILLAR INC
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this reference introduces the idea of ​​using a small amount of compression-ignited diesel to ignite gasoline, it does not consider emissions, nor does it contemplate or recognize that emissions will vary with the mixture ratio of gasoline and diesel regardless of engine operating conditions ability to reduce

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compression ignition engine with blended fuel injection
  • Compression ignition engine with blended fuel injection
  • Compression ignition engine with blended fuel injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] refer to figure 1 , engine 10 includes a fuel system 16 having a plurality of fuel injectors 17 . Engine 10 is shown including 6 fuel injectors corresponding to a 6 cylinder engine, but those skilled in the art will recognize that the teachings of the present invention are equally applicable to engines having any number of cylinders. Nozzle outlet 41 of each fuel injector 17 is positioned to inject fuel directly into a respective cylinder 12 (only one of which is shown). In a conventional manner, a piston 14 reciprocates within each cylinder 12 with a compression ratio sufficient to compress air beyond the self-ignition conditions of a compression ignition fuel (eg, distillate diesel fuel, diesel biofuel, etc.). Accordingly, engine 10 is a compression ignition engine and does not include electronic spark starting devices such as spark plugs. Accordingly, ignition of the fuel charge injected from the injector 17 relies on compression ignition of the compression-ignitio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An engine (10) includes an electronically controlled mixing ratio control valve (24) with a first inlet (25) fluidly connected to a source of gasoline (20), and a second inlet (26) fluidly connected to a source of compression ignition fuel (22), such as distillate diesel fuel. An outlet (42) from the mixing ratio control valve (24) is fluidly connected to a fuel inlet (40) of at least one fuel injector (17). The mixing ratio control valve (24) varies a mixture ratio of gasoline to compression ignition fuel responsive to a control signal communicated from an electronic controller (18). The blended fuel may be pressurized to injection levels in the fuel injector (17), and injected directly into the engine (10) cylinder (12).; The compression ignition fuel is compression ignited, which in turn ignites the gasoline to produce a lower and better combination of undesirable emissions as a result of the combustion process.

Description

technical field [0001] This invention relates generally to compression ignition engines, and more particularly to the injection and combustion of gasoline and compression ignition fuels with electronically controlled mixture ratios. Background technique [0002] Engineers are always looking for new ways to reduce unwanted emissions from compression ignition engines. While more elaborate aftertreatment systems can be used to treat unwanted constituents of exhaust emissions, it is always desirable to burn fuel in a manner that reduces the generation of unwanted emissions in the first place. Some of the unwanted emissions of current concern include NOx, unburned hydrocarbons, and particulate matter. NOx is generally associated with higher combustion temperatures. Unburned hydrocarbons are sometimes associated with incomplete combustion of fuel in remote portions of the engine cylinder. Particulate matter generation can be attributed to a variety of causes known in the art, i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02M43/04F02D19/08F02M51/06F02M61/16
CPCF02D19/0689F02D19/0694Y02T10/36F02M57/025F16K11/00F16K11/044F02M43/02F02M37/0064F02M47/027F02D19/0676F02D19/0649F02D41/0025F02D41/3836F02D19/0628F02M43/04F02D19/081F02M37/0088F02M37/0023Y02T10/30
Inventor 金会山
Owner CATERPILLAR INC