CN102243919A

CN102243919A - Overhead booster for ignition of natural gas engine

Info

Publication number: CN102243919A
Application number: CN 201110065867
Authority: CN
Inventors: 周耀; 张克平; 李成军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-18
Filing date: 2011-03-18
Publication date: 2011-11-16

Abstract

The invention discloses an overhead booster for ignition of a natural gas engine. High-voltage coils (3) and low-voltage coils (4) are wound on an epitaxial iron core (5) of the booster; the low-voltage coils (4) have a small number of turns, a large section diameter of enameled wires and a low-voltage socket (1); and the high-voltage coils (3) are connected with one end, facing inwards, of a spring (9) in a high-voltage rod (8) by a high-voltage connecting sheet (6). The booster is simple in structure, convenient to install and particularly applicable to environment-friendly natural gas automobiles. The overhead booster for the ignition of the natural gas engine, after tested, has the advantages that: 1, the booster is difficult to puncture, and the output energy and voltage of the booster can be improved; 2, a high-voltage line is not required, a space is saved, and loss is reduced; 3, requirements on the quality of raw materials are not high; 4, the booster is applicable to single-cylinder configuration and computer control, and the ignition is more accurate and more reliable; and 5, the epitaxial iron core (5) is difficult to crack, reliability is improved, and the service life of the booster is prolonged.

Description

Natural gas engine igniting overhead type stepup transformer

Technical field

The invention belongs to the engine ignitor technical field, relate to a kind of igniter that is used for natural gas engine that makes low pressure be upgraded to high pressure, especially a kind of natural gas engine igniting overhead type stepup transformer.

Background technology

Natural gas engine is because to adopt the higher natural gas of calorific value be fuel, and therefore, to be spark plug require very high to the igniter pressure of stepup transformer its igniter.General stepup transformer is owing to reasons such as size is little are broken down by high-voltage easily, so its energy is restricted.Moreover, even this energy is difficult to make big stepup transformer, must use high-voltage line to connect during making, so, energy loss is bigger, is difficult to the high heating value gas fuel of ignition engine more.

Summary of the invention

The technical problem to be solved in the present invention is, defective at the prior art existence, for natural gas engine provide a kind of simple in structure, can produce than macro-energy, gas fuel in the ignition engine fast, thus the natural gas engine igniting overhead type stepup transformer of natural gas engine can be started fast.

Technical solution of the present invention is, the overhead type stepup transformer is used in described natural gas engine igniting, referring to Fig. 1, has the rectangular housing 2 that has extensional mode iron core 5 in its cavity and coaxial line and is fixedly connected on cartridge type high pressure stem 8 on this housing 2.A spring 9 has been coaxially set in the inner chamber of this high pressure stem 8.Its technical characterstic is, on the extensional mode iron core 5 in the described housing 2 by the interior low-voltage coil 4 that is wound with high-tension coil 3 and band Low-voltage socket 1 outwardly successively.Wherein the number of turn of the number of turn higher pressure coil 3 of low-voltage coil 4 is few, and the diameter of section of the diameter of section higher pressure coil 3 used enamelled wires of low-voltage coil 4 used enamelled wires is big.Described high-tension coil 3 connects an end inwardly of high pressure stem 8 inner springs 9 by the high pressure brace 6 of band high pressure copperhead 7.The high voltage that high-tension coil 3 produces can be conducted to the spark plug on the peripheral hardware engine 10 like this, and produce ignite gas fuel in the engine cylinder of electric spark thus.

Operation principle of the present invention is, by the above natural gas engine igniting overhead type stepup transformer that constitutes, low-voltage current by Low-voltage socket 1 input is passed to low-voltage coil 4, magnetic induction effect through extensional mode iron core 5, make high-tension coil 3 produce high voltage and high-energy, via the high pressure brace 6 of band high pressure copperhead 7, high voltage and high-energy conducted to spark plug 10 reach the purpose that realizes that igniting is caught fire.

The invention has the beneficial effects as follows, simple in structure, easy for installation.Be specially adapted to increasing modern environment-friendly type gas-fueled vehicles, market is very wide.Have the following advantages through the more traditional stepup transformer of experimental check proof:

1, is difficult for puncturing, do not hinder the design of high-energy high-tension igniton, can directly increase the withstand voltage and the specification of product, can directly increase the energy and the voltage of stepup transformer output;

2, needn't use high-voltage line, both save the space, reduce energy loss again, also eliminate this incipient fault point of high-voltage line;

3, material quality is less demanding, can improve the useful life of stepup transformer like this;

4, this stepup transformer is applicable to single cylinder configuration, computer control, to realize lighting a fire more accurately, more reliably effect, the drawback that a plurality of stepup transformers flog a dead horse in the time of can avoiding cylinder not do work again simultaneously;

5, the stress difference that produces between p-n tradition iron core and the epoxy resin 11 has been eliminated in the employing of extensional mode iron core 5, thereby not easy to crack, has increased reliability, has prolonged the life-span of stepup transformer product.

Description of drawings

Fig. 1 is the structural representation of natural gas engine igniting of the present invention with a specific embodiment of overhead type stepup transformer, is denoted as among the figure:

The 1-Low-voltage socket,

The 2-housing,

The 3-high-tension coil,

The 4-low-voltage coil,

5-extensional mode iron core,

6-high pressure brace,

7-high pressure copperhead,

The 8-high pressure stem,

The 9-spring,

The 10-spark plug,

11-epoxy resin.

Embodiment

Referring to accompanying drawing 1, natural gas engine of the present invention igniting is drawn materials with this embodiment of overhead type stepup transformer, and to become thickness be the rectangular plastic housing 2 of 1mm to the PVC plastic production, is of a size of 64 * 92mm ²One commercially available extensional mode iron core 5 is set in the housing 2.Extensional mode iron core 5 extensions one end stretches out housing 2 and fixedly is assemblied on the shell 2.Fill out under at vacuum degree 200Pa between extensional mode iron core 5 and the housing 2 and irritate epoxy resin 11 with sealing low pressure coil 4 and high-tension coil 3 with interior condition.High pressure stem 8 is tubular, long 180mm, barrel dliameter Φ 22mm.These high pressure stem 8 coaxial lines are fixedly connected on the housing 2.Spring 9 sizes are held on the high pressure copperhead 7 in the inner chamber of high pressure stem 8 with the size coupling and the coaxial line device of high pressure stem 8 inner chambers.By interior high-tension coil 3 and the low-voltage coil 4 of being wound with successively outwardly, wherein the number of turn of low-voltage coil 4 is 155 circles on the extensional mode iron core 5 in the above-mentioned housing 2, and the number of turn of higher pressure coil 3 is few, and the number of turn of high-tension coil 3 is 13340 circles; The diameter of section of low-voltage coil 4 used enamelled wires is Φ 0.55mm, and the diameter of section of higher pressure coil 3 used enamelled wires is big, and the diameter of section of high-tension coil 3 used enamelled wires is Φ 0.05mm.Low-voltage socket 1 promptly is connected on the lead-out wire of low-voltage coil 4 ends.High-tension coil 3 connects an end inwardly of high pressure stem 8 inner springs 9 by the high pressure brace 6 of band high pressure copperhead 7.

Be proved to be respond well with the overhead type stepup transformer through manufacturing experimently to try out by the above natural gas engine igniting of the present invention that constitutes, reach designing requirement fully.

Claims

1. a natural gas engine is lighted a fire and is used the overhead type stepup transformer, rectangular housing (2) and coaxial line with a band extensional mode iron core (5) are fixedly connected on cartridge type high pressure stem (8) on this housing (2), a spring (9) has been coaxially set in the inner chamber of this high pressure stem (8), it is characterized in that, extensional mode iron core (5) in the described housing (2) is gone up the low-voltage coil (4) that is wound with high-tension coil (3) and band Low-voltage socket (1) outwardly successively by interior, wherein the number of turn of the number of turn higher pressure coil (3) of low-voltage coil (4) is few, the diameter of section of the used enamelled wire of diameter of section higher pressure coil (3) of the used enamelled wire of low-voltage coil (4) is big, and described high-tension coil (3) connects an end inwardly of high pressure stem (8) inner spring (9) by the high pressure brace (6) of band high pressure copperhead (7).