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Electronic fuel spray nozzle

A fuel injector and electronic technology, which is applied in the direction of fuel injection devices, engine components, machines/engines, etc., can solve the problems of easy oil leakage and coaxiality, which is difficult to guarantee, and solve the problem of poor coaxiality and easy oil leakage, High concentricity and good sealing performance

Active Publication Date: 2015-07-15
WENZHOU BATON ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies and defects in the background technology, the present invention provides an electronic fuel injector, which mainly solves the problems that the existing electronic fuel injector is prone to oil leakage and coaxiality is difficult to guarantee when in use.

Method used

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Embodiment 2

[0019] The difference of embodiment two with respect to embodiment one is:

[0020] Depend on figure 2 As shown, one end of the oil inlet pipe 2 is nested in the oil outlet pipe and welded with the oil outlet pipe 7 . The armature is set inside the oil outlet pipe, and the oil outlet pipe and the oil inlet pipe are set in a split nested way, which eliminates the two-point welding between the oil outlet pipe, the oil inlet pipe and the armature, and adopts the direct welding method of two pipes, which is easy to manufacture and confidential. The effect of good degree and high coaxiality.

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Abstract

The invention relates to an electronic fuel spray nozzle, mainly aiming at solving the problems that the fuel is easy to leak and the coaxiality is hard to guarantee when the existing electronic fuel spray nozzle is used. A valve needle and an armature outer ring are respectively sleeved with a fuel discharge pipe, and the fuel discharge pipe and a fuel charge pipe are in coaxial covering connection with each other or in coaxial integrating connection with each other. The electronic fuel spray nozzle has the characteristics of being good in sealing performance, and high in coaxiality.

Description

technical field [0001] The invention relates to the field of an engine fuel injector, in particular to an electronic fuel injector. Background technique [0002] The injector itself is a normally closed valve, and the opening and closing of the valve is controlled by the up and down movement of the valve needle. When the ECU issues a fuel injection command, its voltage signal will cause current to flow through the coil in the fuel injector, generating a magnetic field to attract the valve stem, allowing the valve to open so that fuel can be sprayed out from the fuel injection hole. The biggest advantage of injection fuel supply is that the control of fuel supply is very precise, so that the engine can have the correct air-fuel ratio in any state, not only to keep the engine running smoothly, but also the exhaust gas can meet the environmental protection regulations. [0003] As one of the key components of the EFI engine, the fuel injector, if the valve stem, valve needle a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M51/06F02M61/08F02M61/16
Inventor 赵典秋
Owner WENZHOU BATON ELECTRONICS TECH