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

Injector assembly and method of using same

An injector and fuel injector technology, which is applied in the direction of fuel injection pump, fuel injection device, fuel injection control, etc., can solve the problem of not providing the possibility of detecting gas leakage, and achieve the effect of low opening pressure

Active Publication Date: 2018-05-22
保罗约翰威廉玛丽纽诺茜
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage of the known device is that it does not provide the possibility of detecting gas leaks

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
  • Injector assembly and method of using same
  • Injector assembly and method of using same
  • Injector assembly and method of using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Such as figure 2 The injector 1 shown is provided with a first nozzle 2 and a second nozzle 3 for fuel injection connected to each other by a cooling channel 4 . The fuel is sucked in by the plunger pump 5 by moving the camshaft 6 up and down. During the intake stroke, fuel such as diesel fuel will be drawn in from the fuel supply passage 7 via the non-return valve 8, which ensures that fuel will not flow back into the fuel passage 7 when the piston 5 will compress. The fuel will then move through the fuel supply channel 9 to the first nozzle, which is embodied as a micro pilot injector nozzle 2 , as a specially implemented nozzle in order to ignite the gas mixture with as little fuel quantity as possible, eg diesel fuel. For this purpose, the microinjector nozzle 2 can be arranged using, for example, only one or more relatively small holes relative to the main fuel injector, realized for example by a second nozzle 3, which can inject fuel, Such as diesel fuel, in th...

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 assembly at least comprising a fuel injector for dual fuel operation of an internal combustion engine. The assembly includes a nozzle holder defining a fuel circuit and provided with a nose adaptedin use to be in connection with a combustion space of an internal combustion engine, and first and second nozzles in communication with the fuel circuit in the nozzle holder for directly injecting liquid fuel into the combustion space of the internal combustion engine for ignition of a combustible mixture present in the combustion space. The first and second nozzles adjacent to the nose of the nozzle holder are interconnected by a cooling channel. At each actuation of a fuel pump upstream of the first and second nozzles, substantially a full volume of fuel pumped during actuation of the fuelpump is allowed to flow through the cooling channel and via the first and second nozzles, to provide cooling thereof. The assembly further comprises a spill valve in the fuel circuit. Opening and closing of the spill valve controls the amount of liquid fuel to be delivered to the first and second nozzles.

Description

technical field [0001] The present invention relates to a fuel injector particularly arranged for dual fuel operation of an internal combustion engine (ie an engine which can selectively operate on two different fuels). This engine can run entirely on diesel and natural gas. When using gas as the primary fuel, a small amount of diesel fuel is then injected for ignition. This injector is provided with two nozzles adjacent to each other in a single housing. A large nozzle is used entirely for diesel fuel and a small nozzle is used to ignite the fuel (called a "mini-pilot injector"). Background technique [0002] A dual fuel injector with two nozzles is known from published US Patent Application No. US 2014 / 0196687 A1, the known solution described therein has the disadvantage that the fuel in the nozzle tip is not circulated and is therefore absorbed by the combustion chamber of heat. When the fuel gets hot, the tar that forms can cause the needle to eventually get stuck. ...

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): F02M43/04F02M45/08F02M47/02F02M53/04F02M55/00F02M57/00F02D41/38F02M57/02F02M59/10F02M61/18F02D19/06F02D19/10F02D41/00
CPCF02D19/0694F02D19/105F02D41/0025F02D41/0027F02D41/3872F02M43/04F02M45/08F02M47/027F02M53/043F02M55/004F02M57/005F02M57/023F02M59/102F02M61/18F02D2041/389F02D35/023F02D35/025F02M61/161F02M45/086F02M43/00F02M2200/8069F02M2200/8061F02M2200/46F02M2200/44F02M2200/247F02M2200/16F02M2200/18F02M63/0225Y02T10/30
Inventor 保罗·约翰·威廉·玛丽·纽诺茜雅罗斯拉夫·欧莱塞克
Owner 保罗约翰威廉玛丽纽诺茜