Suction type natural gas injection solenoid valve for dual fuel engine
A dual-fuel engine, natural gas technology, applied in combustion engines, internal combustion piston engines, engine components, etc., can solve the problems of complex patent structure and influence on work reliability, and achieve long service life, fast response speed, and simple driving process. Effect
Inactive Publication Date: 2015-12-02
HARBIN ENG UNIV
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[0007] The patent structures involved above are relatively complex, and work reliability is affected
Method used
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[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0022] combine Figure 1~3 , the present invention proposes a new suction type natural gas injection solenoid valve device, which can control the natural gas injection of a dual-fuel engine.
[0023] The present invention consists of a connector 1, a sliding bearing 2, a spring 3, a coil 4, a magnetically conductive housing 5, a rear housing 6, an armature 7, a fastening nut 8, a bearing seat 9, a central shaft 10, a cone valve 11, and a front end cover 12 and other components. Adopting the principle of suction, there are through holes in the center of the central shaft 10 and the radial direction of the cone valve 11. When the coil 4 is energized, the armature 7 is attracted, and the natural gas passes through the through hole of the central shaft 10 sequentially. The radial direction of the cone valve 11 Holes, and the gap between the cone valve 11 and the fro...
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The invention aims at providing a dual fuel engine absorbing moving type natural gas ejection solenoid valve which comprises a connector assembly, a sliding bearing, a spring, a coil, a magnetism conducting shell body, a back shell body, an armature, a fastening nut, a bearing seat, a central shaft, a taper valve, a front end cover and other parts. The absorbing moving principle is adopted. Through holes are formed in the center of a central shaft (10) and the radial direction of the taper valve (11). When the coil (4) is powered on, the armature (7) is attracted, natural gas sequentially passes through the through hole of the central shaft (10), the radial hole of the taper valve (11), and the clearance between the taper valve (11) and the front end (12), and finally is ejected. According to the dual fuel engine absorbing moving type natural gas ejection solenoid valve, the absorbing principle is used for controlling opening and closing of the taper valve, so that the ejection of natural gas is controlled. The dual fuel engine absorbing moving type natural gas ejection solenoid valve has the advantages of being simple in drive process, compact in space structure, quick in response speed, and long in service life.
Description
technical field [0001] The invention relates to a natural gas or dual-fuel engine, in particular to an injection solenoid valve of the natural gas or dual-fuel engine. Background technique [0002] With the reduction of oil reserves, finding alternative fuels for diesel engines has gradually become an important issue. Compared with traditional fuels, natural gas has high thermal efficiency, good anti-knock performance, obvious effect of reducing harmful emissions, and low cost. It is very suitable as an alternative fuel for diesel engines. [0003] Since the fuel properties of natural gas are different from those of diesel, it is necessary to modify the fuel supply part of traditional diesel engines. Natural gas injection valve, its role is to provide a proper amount of natural gas to the combustion chamber according to the needs, its precision and stability directly affect the working reliability of the engine, it is an important part of the dual-fuel engine. Compared wit...
Claims
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IPC IPC(8): F02M21/02F16K31/06
CPCY02T10/32Y02T10/30
Inventor 石勇朱榕政李文听杨立平孙军
Owner HARBIN ENG UNIV