CN1010042B - Ignition device for engine burning multiple fuels - Google Patents

Abstract

The present invention provides an ignition device capable of burning various fuels such as methane, coal gas and wood gas in the existing diesel engine, and changes the existing new and old diesel engine into an engine burning the various fuels. The pressure power-off pre-combustion chamber ignition system is characterized in that an oil injector of the existing diesel engine is only required to be detached, a pre-combustion chamber is additionally arranged below the oil injector, spark plugs are arranged on two sides of the pre-combustion chamber, a pressure power-off igniter is arranged on one side, the pre-combustion chamber of the oil injector is pressed on the position of the original oil injector by using a longer bolt, and the like, so that the pressure power-off pre-combustion chamber ignition system is formed, the oil saving rate can reach 100%, the pre-combustion chamber can be mixed with diesel oil according.

Description

Ignitor for engines using various energy sources

The present invention is a kind of ignition mechanism that is applicable to various energy resources such as diesel oil, biogas, coal gas, wood gas.

Existing diesel changes the motor of biogas or various energy resources such as coal gas, wood gas into, generally adopts a small amount of diesel oil, sprays in high-pressure hot air and lights a fire, again with biogas or gas mixed burning.In fact, when using biogas with, do not reach a standard more, produce violent shake cruelly, generally claim rough running, fuel-economizing does not reach desirable require (fitness for purpose fuel-economizing 70%), more can not use the ratio of mixture of biogas and any change diesel oil biogas fully.And diesel engine refitted is become the motor of perfect combustion biogas, it is big then to reequip workload, again can not be again after the repacking multifuel combustion diesel oil arbitrarily, when supply falls short of demand, motor promptly can't move at biogas.Covering at diesel engine cylinder of having adds brill one spark-plug hole in addition, but general light duty diesel engine, the no this item mounting point.

The object of the present invention is to provide and a kind ofly in diesel engine, can burn biogas, coal gas, wood gas etc., or the ignition mechanism of the mixture of diesel oil and these fuel and diesel engine become the motor that can burn above-mentioned pluralities of fuel.The present invention has adopted and adorned a spark plug, oil sprayer and pressure cut-off device on precombustion chamber for this reason, the structure that high-voltage ignition coil, storage battery, capacitor link to each other with spark plug and pressure cut-off device respectively, motor is pressed into precombustion chamber with gas, ignition therein, spray into cylinder again, it can adapt to all size diesel engine, repack the motor of diesel oil biogas or diesel oil coal gas, wood gas, multifuel combustion into, but also the based on fuel supply situation uses biogas or various energy resources such as coal gas, wood gas fully.

The present invention is achieved in that

General diesel engine nozzle is pulled down, thereunder installed additional a precombustion chamber, precombustion chamber both sides one dress spark plug, one dress pressure cut-off igniter, other uses instead than long bolt, with the oil nozzle precombustion chamber etc., together be pressed on original oil nozzle position, constitute pressure cut-off precombustion-chamber ignition system.

The principle of igniting is the inflammable mixture that will be compressed, and by special precombustion chamber, acts on the valve rod in the pressure cut-off device, makes it produce micro-to-and-fro motion (about a millimeter), makes the platinum outage, causes spark coil to produce high-tension electricity, is skipped by spark plug.Spark coil is with general automobile spark coil, and it is identical that it produces high-tension electricity principle.Resetting of pressure valve rod is by means of the Returnning spring on the platinum seat, and Returnning spring can be temporarily transferred and be pressed the bolt adjustment, so just can control outage too early, just firing time.

The concrete structure of invention is provided by following embodiment and accompanying drawing.

Accompanying drawing is the ignition system figure of according to the present invention " engine ignitor of burning pluralities of fuel ".(1) is spark plug among the figure, and (2) are precombustion chamber, and (3) are the original oil nozzle of general diesel engine, and (4) are pressure cut-off igniter valve seat.When diesel engine piston carries out compression stroke, compressed mixed gas in the cylinder enters precombustion chamber, when pressure reaches definite value, pressure valve rod (7) is compressed air pressure and goes out, produce about one millimeter outside motion, make (8) platinum contact leave (9) platinum contact, low-voltage circuit in the point of cut-off fire coil (19) is pressed regular price gasoline engine ignition principle, at this moment, high-tension coil generation high voltage induction electric current in the spark coil, produce high-tension electricity,, enter spark plug (1) by (20) high voltage wire, make the outburst of catching fire of the interior mixed gas of precombustion chamber (2), the whole compressing inflammable gases in the cylinder that ignites.When inner cylinder pressure descends, platinum (8) acts on felt pad (10) because of Returnning spring (11) again, and platinum seat (16), making (8) platinum contact still touch (9) with platinum connects, platinum (8) is to be fixed on platinum seat (16) bottom, utilize felt pad (10), and (17) insulating bush, insulate with body.Platinum (9) then is fixed on asbestos pressure cap (6) top, with circuit breaker shell (15) ground connection, about each one pair, symmetrically.(5) are asbestos yarn among the figure, are to prevent valve rod gas leakage filler.(18) be the electric bolt that connects on the platinum seat (16), (19) be low-voltage circuit, (20) be the high voltage wire of spark coil towards spark plug, (21) are capacitor, and (22) are spark coil, (23) be the low-voltage circuit switch, (24) be storage battery or other Dc low voltage power supplies, (13) are regulator bolts, and (14) are set screw nut, (15) be the circuit breaker shell, with circuit breaker valve seat (4) with being threaded.

Claims (1)

1, a kind of engine ignitor of the pluralities of fuel that burns, this device is adorned a precombustion chamber below oil sprayer, ignition mechanism is loaded in this precombustion chamber, piston is pressed into the precombustion-chamber ignition burning with combustion gas, the outlet ejection that is provided with from the precombustion chamber below again, the ignition mechanism that it is characterized in that the present invention links to each other with high-voltage ignition coil, one pressure cut-off device is loaded in this precombustion chamber and with the high voltage ignition circuit of ignition mechanism and links to each other, with control ignition, the pressure cut-off igniter valve seat of this pressure cut-off device, be contained in the precombustion chamber side, valve rod is wherein stretched in the precombustion chamber, the asbestos pressure cap is housed on the valve seat, the platinum contact that is fixed with on it on platinum seat of platinum contact and valve rod right-hand member contacts, all there is insulating bush at the two ends of platinum seat, the pressure spring dress thereon, the pressure of pressure spring can be by being contained in the screw adjusted on the shell, described shell is contained on the igniter valve seat, on the platinum seat, also be provided with and connect electric bolt, and be connected with low-voltage circuit, the variation in pressure of precombustion chamber acts on the valve rod, and valve rod is moved, thereby drive the connecting and disconnecting of platinum contact, thereby control ignition.