Middle hole pressure storage static leakage-free oil sprayer

A fuel injector and pressure accumulating technology, which is applied to machines/engines, fuel injection devices, engine components, etc., can solve problems such as high requirements for cleanliness, unfavorable mass production of fuel injectors, and complex fuel injector structures. , to achieve better sealing effect, is conducive to precise control, better fuel combustion effect

Active Publication Date: 2015-01-28
钧风电控科技(大连)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the single-stage plunger couple with the middle-hole pressure-accumulating structure of the imported technology is very complicated, the processing cost is high, and the cleanliness is also very high, which is not conducive to the mass production of the injector.

Method used

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  • Middle hole pressure storage static leakage-free oil sprayer
  • Middle hole pressure storage static leakage-free oil sprayer
  • Middle hole pressure storage static leakage-free oil sprayer

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] like Figure 1-4 As shown, the middle hole pressure accumulating non-static leakage fuel injector of the present invention includes a high-speed solenoid valve, a lock nut 8, a conical ball valve type switch valve, a control plunger couple, a fuel injector spring 17, a spring seat 18, The opening retaining ring 19, the injector body 12, the injector nozzle assembly and the injector tight cap 20; the high-speed solenoid valve is accommodated in the cavity at the upper end of the injector body 12, and is threadedly connected with the upper end of the injector body 12; The high-speed solenoid valve includes an oil return screw 1, a preload adjusting gasket 2, a solenoid valve spring 3, a magnetic head injection molding assembly 4, a solenoid valve needle assembly 6 and an armature return spring 7; the oil return screw 1 and the magnetic head The upper end of the i...

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Abstract

The invention discloses a middle hole pressure storage static leakage-free oil sprayer, comprising a high speed solenoid valve, a locking screw sleeve, a tapered surface ball valve type switch valve, a control plunger and barrel assembly, an oil sprayer spring, a spring seat, an opening check ring, an oil sprayer body, an oil sprayer assembly and an oil nozzle locking cap; the tapered surface ball valve type switch valve is arranged in a concave cavity in the upper end of the oil sprayer body; the upper end of the oil sprayer body is connected with the high speed solenoid valve by a locking nut; the lower end of the oil sprayer body is connected with the oil nozzle assembly by the oil nozzle locking cap; the control pole plunger and barrel assembly is arranged in a central hole formed along the axis of the oil sprayer body; the central hole of the oil sprayer body and the control pole plunger and barrel assembly form a middle hole pressure storage cavity. The oil sprayer is simple in structure, low in machining cost and convenient to mount, so the production efficiency and product percent of pass are improved.

Description

technical field [0001] The invention relates to the technical field of fuel injection for automobile diesel engines, in particular to a middle hole pressure accumulating non-static leakage fuel injector. Background technique [0002] The high-pressure common rail fuel injection system for diesel engines was developed to cope with emissions above Euro III, and has become the mainstream technology of diesel engine fuel systems. At present, there are three major companies in the world producing high-pressure common rail systems for diesel engines, Japan's Denso, Germany's Bosch, and America's Delphi. In the context of the increasingly serious energy crisis, engine technology is obviously the most critical to reduce fuel consumption of automobiles and develop new energy power; as the requirements for emission standards become higher and higher, the continuous development of diesel engine combustion technology will inevitably be promoted, and the current domestic market Most die...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M61/10
Inventor 韩宜龙臧广辉卫忠星范永新杨建鑫左照伟戴宏伟
Owner 钧风电控科技(大连)有限责任公司
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