Inlaying-combination type oil sprayer

A fuel injector and combined technology, applied in the direction of machines/engines, fuel injection devices, engine components, etc., can solve the problems of fuel atomization quality decline, fuel consumption increase, and affect the normal operation of the engine, so as to save fuel, The effect of low production cost and simple structure

Inactive Publication Date: 2008-08-06
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing fuel injector itself does not have the function of pressure regulation. With the prolongation of the running time of the vehicle, the fuel injection pressure of the fuel injector will gradually decrease. Accurate, it will inevitably reduce the quality of fuel atomization and increase fuel consumption, which will affect the normal operation of the engine

Method used

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  • Inlaying-combination type oil sprayer
  • Inlaying-combination type oil sprayer
  • Inlaying-combination type oil sprayer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one: the first scheme of the present invention. see figure 1 , Fig. 2 and Fig. 3, the steel ball 10 is installed in the oil inlet in the one-way valve 2, and one end of the compression spring 9 is close to the steel ball 10; a square restrictor plate 8 is embedded in the orifice plate In the middle part of 3, there is a micro gap in the processing between the nozzle hole plate and the restrictor plate, and this micro gap is the fuel injection hole 6; the restrictor plate, the nozzle hole plate and the fuel injection hole can be processed by a wire cutting machine tool;

[0029] see figure 1 , the orifice plate 3 and the partition plate 4 embedded with the flow limiting plate 8 are put into the outer casing 1, and the one-way valve 2 is connected with the outer casing. Between the front ends of the valve, the oil outlet 5 at the end of the jacket is opposite to the oil injection hole 6 on the orifice plate, the oil injection hole on the orifice plate is oppo...

Embodiment 2

[0031] Embodiment two: the second scheme of the present invention. see Figure 12 to Figure 1 5. Put the orifice plate 3 and the partition plate 4 embedded with the flow limiting plate 8 into the casing 1, and connect the check valve 2 with the casing. Between the front ends of the valve, the oil outlet 5 at the end of the jacket is opposite to the oil injection hole 6 on the orifice plate, the oil injection hole on the orifice plate is opposite to the oil passage 7 on the separator, and the oil outlet on the separator The oil hole communicates with the one-way valve, and the other end of the compression spring 9 installed in the one-way valve is close to the partition plate 4; one end of the oil inlet of the one-way valve 2 is processed with a square hole perpendicular to the oil inlet passage 11. A pressure regulating seat 13 is installed in the square hole;

[0032] The valve body 12 of the oil pressure regulating valve is connected vertically with the oil inlet of the ch...

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PUM

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Abstract

Present invention relates to an embedded unit injector including outer case, one-way valve, jet orifice plate and partition. It features in middle of jet orifice plate at least embedded a piece of restrictor plate, at least a micro interstice set between jet orifice plate and restrictor plate, said micro interstice is fuel injection hole, outer case oil outlet opposite with jet orifice plate fuel injection hole, jet orifice plate fuel injection hole opposite with partition through fuel hole, partition through fuel hole opposite with one-way valve. Said invention also refers to a embedded unit injector, one end in one-way valve oil inlet set with square opening vertical with fuel inlet channel, one end of one-way valve oil inlet vertical connected with valve body of oil pressure adjusting valve, square opening located upper of said communicated with oil pressure adjusting valve. It has simple structure, convenient for manufacture, precision controlling fuel feed, saving fuel, in time adjusting fuel injection pressure, raising fuel atomization quality.

Description

technical field [0001] The invention relates to an automobile fuel injector, in particular to a mosaic combined fuel injector. Background technique [0002] In the past 20 years, in order to meet the increasingly stringent requirements of automobile emission regulations, some countries have adopted a mixture formation system that directly injects gasoline into the intake pipe, that is, the electronically controlled injector is installed at the air intake of the engine, and is controlled by the electronic control unit. control, successfully replacing carburetor feed systems, and is increasingly being used in passenger car and light vehicle engines. Although the method of directly injecting gasoline into the engine intake pipe has many advantages, after the 1960s, the electronically controlled gasoline injection system was installed on the car engine and put into practice. But there are still many deficiencies. The fuel injector of its fuel supply part is the most important ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M61/18
Inventor 薛荣生林毓培刘伟
Owner SOUTHWEST UNIV
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