• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An air-compressing, self-igniting combustion engine for liquid fuels, in an arrangement that includes a combustion chamber depression in a piston for receiving injected fuel predominantly in the vicinity of the wall thereof and for receiving rotating combustion air at the time of fuel injection. Oxygen-containing fuel that is reluctant to ignite is injected through a first injection device into the combustion chamber depression; through a second injection device there is injected fuel that is willing to ignite, for instance oil fuel, gas oil or Diesel fuel, for initiating and/or maintaining the fuel combustion in the combustion chamber depression. Furthermore, the injection times of the fuel that is willing to ignite and the oxygen-containing fuel that is reluctant to ignite overlap each other. The first and second injection nozzles each are arranged with an injection pump and are rigidly coupled and have a common injection adjuster. Both injection nozzles are combined in a single-nozzle body. One injection nozzle is embodied as a two-hole nozzle which is inclined at an acute angle in the twist direction, the fuel streams of which however form such a small differential angle with respect to each other that the droplets of the oxygen-containing fuel that is unwilling to ignite in essence form a common droplet veil or mist. The injection nozzles are so directed that a separate droplet veil or mist results for both fuels.
    公开号:SU1269745A3
    申请号:SU802869402
    申请日:1980-01-11
    公开日:1986-11-07
    发明作者:Пишингер Франц；Хавенит Корнелис
    申请人:Профессор Др.Техн.Франц Пишингер (Фирма)；
    IPC主号:
    专利说明:

    VI
    42
    : l The invention relates to the field of mechanical engineering, in particular to engine-building, and specifically to internal combustion engines with ignition from compression and methods of their operation. The aim of the invention is to reduce the toxicity of exhaust gases. In FIG. 1 shows a scheme for carrying out the method; in fig. 2 - piston, top view in the direction of the recess axis; in fig. 3 - injection diagrams versus crank angle for both types of fuel; in fig. 4 is a diagram of the general control of both fuel pumps. The engine contains a cylinder (not shown) with a piston 1 cylinder head 2 located in it, equipped with an inlet valve 3, combustion chamber 4 formed by head 2 and piston I bottom 5, means for communicating air to the rotary combustion chamber 4. two fuel nozzles 6 and 7 mounted in the head 2; Nozzle 6 is designed to inject auxiliary flammable fuel, mainly gas oil, using a fuel pump 8, and a nozzle 7 to inject the main flame-resistant oxygen-containing fuel, reimuschestvenno methanol using the fuel pump 9. The bottom 5 of the piston 1 a recess 10, the nozzle 7 is placed in the wall of the recess 10, and its axis raspshitelnyh holes directed parallel to the wall of the recess 10. The recess 10 in the bottom 5 of the piston is cylindrical :; with a slope to the axis of the cylinder, length and diameter in the ratio of 1: 1. The nozzle 6 is located in the peripheral region of the recess 10. It can be placed opposite the nozzle 7. Then the axis of the orifice of the nozzle 6 is directed through the recesses 10 at an angle of 45 to the axis of the cylinder. The nozzle 6 can be placed next to the nozzle 7 near the intake valve 3. Then the axis of the nozzle 6 is directed at an angle of 45 to the axis of the cylinder toward the nozzle 7 The nozzle 7 is made with two openings whose axes are directed at an acute angle to the axis of the cylinder from nozzle 6. 452 In the peripheral area of the recess 10 near the inlet valve 3, a bevel 11 is made under the nozzle 6. The nozzles 6 and 7 are fixed with a common sticking hook (not shown) or combined with the Water nozzle body (Sne is shown). The fuel pumps 8 and 9 are equipped with a common fuel supply control knob 12 and transfer levers 13 and 14, the transfer lever 14 of the pump 9 directly connected to the handle 12, and the translation lever 13 of the pump 8 is connected to the handle 12 via a rocker mechanism, made in the form of a lever 15 connected to it by a controlling lever 16, the free end of which is directed through the rocker stone 17 to the fixedly mounted flat disc cam 18, - and an additional control lever 19 moving by the rocker stone 17., Fuel us The wasps 8 and 9 are equipped with a common displacement controller (not shown) acting on the handle 12. In addition, the pumps 8 and 9 are rigidly connected to each other and equipped with a common injection controller (not shown). The method is carried out as follows. Air is injected into the cylinder through the inlet valve 3, rotational movement is reported to it, compressed by the piston 1 and different types of fuel are injected into the compressed air stream rotating in the combustion chamber 4 through two nozzles 6 and 7, and auxiliary fuel is injected through the nozzle 6 and then ignition from contact with compressed air, and through nozzle 7 - the main fuel with its subsequent ignition from the burning auxiliary fuel, combustion, expansion of the combustion products and exhaust from the cylinder . The main fuel is injected in the region of the wall of the recess 10 in the bottom 5 of the piston 1 parallel to this wall. The duration of the injection of both fuel vidora set overlap. -. The injection of auxiliary fuel can be started before the injection of the main fuel, or carried out during the entire duration of the injection of the main fuel. 3 When the engine load changes, it is possible to change the amount of injected primary fuel, while keeping the amount of auxiliary fuel constant or changing the amount of injected fuel of both types. When the engine starts to idle, the amount of auxiliary fuel can be increased, preferably twice, or only auxiliary fuel can be injected until the engine reaches idle speed. At full engine load, the volume ratio of the fuel to the main fuel is maintained at a uniform 1:30. Higher alcohols, for example methanol or ethanol, which are contaminated with water, for example, up to 30% by volume, or liquefied gas, can be used as the main fuel. Formula I.-1. The method of operation of the internal combustion engine with compression ignition by injecting air into the cylinder through the intake valve, giving the air rotational movement, its piston piston and injecting various types of fuel into the compressed air stream rotating in the combustion chamber through the two nozzles Auxiliary flammable fuel is injected with a predominantly gas oil, followed by its ignition from contact with compressed air, and through the second nozzle is the main flame-resistant oxygen-containing fuel, mainly methanol, with its subsequent ignition from the burning auxiliary fuel, combustion by expansion of combustion products and exhaust from the cylinder of exhaust gases, characterized in that, in order to reduce toxicity of exhaust gases, the main fuel is injected in the wall of the depression in the piston bottom parallel This wall and the duration of the injection of both types of fuel set overlap. 2. The method according to p. 1, the difference and, with this, 1to the injection of auxiliary fuel begin before the injection of the main fuel. 745 4 3. The method according to paragraphs. 1 and 2, that the injection of auxiliary fuel is carried out throughout the duration of the injection of the main fuel. 4. Method according to paragraphs. 1-3, such that, as the engine load changes, the VOLUME of the injected primary fuel is changed, and the amount of auxiliary fuel is kept constant. 5. Method according to paragraphs. 1-3, which is due to the fact that when the scientific research institute changes its engine load, the amount of both types of fuel injected is changed. 6. Method according to paragraphs. 1-3, characterized in that, when the launch is hosed, the engine's number of injected auxiliary fuel is increased, preferably by a factor of two. 7. Method according to claims, 1-3, about tons of l and the fact that during cold start of the engine, only auxiliary fuel is injected until the engine reaches idling speed. 8. Method according to paragraphs. 1-3, which is based on the fact that at full engine load the volumetric ratio of auxiliary fuel to main fuel is maintained at 1:30. 9. Method according to paragraphs. 1-8, about t l and using the fact that higher alcohols, methanol or ethanol contaminated with up to 30% by volume are used as the main fuel. 10. Method according to claims. 1-8, about t l and that the liquefied gas is used as the main fuel. 11. Internal combustion engine-. compression ignition ki containing at least one cylinder with a piston placed in it, a cylinder head equipped with an inlet valve, a combustion chamber formed by a cylinder head and a piston bottom, means for communicating rotational motion and two mounted in the cylinder head fuel nozzles, each of which is fitted with at least one spray hole, the first nozzle being designed for the injection of auxiliary highly flammable fuel, preferably gas oil using the first fuel pump, and the second nozzle for injecting the main hardly flameable oxygen-containing fuel, predominantly methanol, using the second fuel pump, characterized in that, in order to reduce the toxicity of exhaust gases, the bottom of the piston is recessed, the second nozzle is placed in the region of the wall of the recess, and the axis of its spray hole is directed parallel to the wall of the recess. 12. The engine of claim 11, about tl and the fact that the recess in the bottom of the piston is cylindrical with an inclination to the axis of the cylinder and a length and diameter in accordance with the ratio of 1: 1 and the first nozzle is located in the peripheral region of the recess. 3, the Engine on PP. 11 and 12, in that the first nozzle is located opposite the second nozzle, and the axis of the aperture of the first nozzle is directed through a recess at an angle of 45 ° to the axis of the cylinder. 14J The engine is PP, 11 and 12, which is so that the first nozzle is located adjacent to the second nozzle near the intake valve, and the axis of the orifice of the first nozzle is directed at an angle of 45 to the axis of the cylinder towards the second nozzle. 15, Engine PP, 11-14, characterized in that the second nozzle is made with two openings, the axes of which are directed at an angle to the axis of the cylinder to the side of the first nozzle. 16. The engine for PP. 11-15, which is characterized by the fact that in the peripheral region of the recess there is a bevel under the first nozzle. 17. The engine according to claim 16, which is based on the fact that the bevel is made; near the intake valve. 18. The engine for PP. 11,12,14-16, characterized in that the nozzles are fixed with a common tack. 19. Engine PP.P-18, differing from the fact that both fuel pumps are equipped with a common fuel control knob and transfer levers, the transfer lever of the second fuel pump for injecting the main fuel directly connected to the knob. the lever of the first fuel pump for the injection of auxiliary fuel is connected to the handle through a rocker mechanism. 20. The engine on the PP. 11-19, in that, both fuel pumps are equipped with a common displacement controller. 21.Engineer on PP. 11-20, indicated by the fact that both fuel pumps are rigidly interconnected and equipped with a common injection injector. 22. The engine for PP. 11-21, similar to the fact that both nozzles are combined in a single nozzle housing.
    .
    Jl
    30 20W
    -10 her 26 30
    .3
    .eight
    YY8
    Fkg
    权利要求:
    Claims (17)
    [1]
    Claim
    1. The method of operation of an internal combustion engine with compression ignition by inlet of an air cylinder through an inlet valve, communicating rotational motion to air, its piston jq and injecting various types of fuel into a stream of compressed air rotating in a combustion chamber through two fuel nozzles moreover, auxiliary flammable fuel, mainly gas oil, is injected through the first nozzle, mainly gas oil, followed by its ignition from contact with compressed air, and through the second nozzle, the main hardly ignited replaceable oxygen-containing fuel, mainly methanol, with its subsequent ignition from the burning auxiliary fuel, combustion, expansion of the combustion products and exhaust from the cylinder, characterized in that, in order to reduce the toxicity of the exhaust gases, the main fuel is injected into the wall region - 5 θ of run in the piston bottom parallel to this wall and the duration of the injection of both types of fuel is set with overlap.
    [2]
    2. The method according to π. 1, the difference is that the auxiliary fuel injection is started before the main fuel injection. When starting the engine, the amount of auxiliary fuel injected is increased, mainly by a factor of two.
    [3]
    7. The method according to PP. 1-3, which is explained by the fact that when the engine is cold started, only auxiliary fuel is injected until the engine reaches idle speed.
    [4]
    8. The method according to PP. 1-3, t l and the fact that at full engine load the volumetric ratio of auxiliary fuel to the main withstand equal to 1:30.
    [5]
    9. The method according to PP. 1-8, which is characterized in that higher alcohols, methanol or ethanol with pollution up to 30 vol./., Are used as the main fuel.
    [6]
    10. The method according to PP. 1-8, t l and the fact that liquefied gas is used as the main fuel.
    I 1. Internal combustion engine. compression ignition system comprising at least one cylinder with a piston disposed therein, a cylinder head provided with an inlet valve, a combustion chamber formed by a cylinder head and a piston crown, means for communicating rotational motion to the combustion chamber and two installed in the cylinder head fuel nozzles, each of which is made with at least one spray hole, the first nozzle being designed to inject auxiliary flammable fuel 5 1269745, advantages gas oil, using the first fuel pump, and the second nozzle for injection of the main low-flammable oxygen-containing fuel, mainly methanol, using the second fuel pump, characterized in that, in order to reduce exhaust toxicity, a recess is made in the piston crown, the second nozzle is placed in the region of the wall of the recess, and the axis of its spray hole is directed parallel to the wall of the recess.
    [7]
    12, The engine according to claim 11, characterized in that the recess in the piston bottom is cylindrical with a slope to the axis of the cylinder and a length and diameter in accordance with a ratio of 1: 1 and the first nozzle is placed in the peripheral region of the recess.
    [8]
    13, Engine 11 and 12, characterized in that the first nozzle is placed opposite the second nozzle, and the axis of the opening of the first nozzle is directed through the recess at an angle of 45 ° to the axis of the cylinder.
    [9]
    14, Engine II and 12, characterized in that the first nozzle is located next to the second nozzle near the inlet valve, ^ and the axis of the opening of the first nozzle is directed at an angle of 45 to the cylinder axis toward the second nozzle.
    [10]
    15, The engine according to claims 11-14, a different nozzle paradise is made with two holes, the axes of which are directed at an acute angle to the cylinder axis, away from the first nozzle.
    [11]
    16. The engine of claims. 11-15, characterized in that in the peripheral region of the recess, a bevel is made under the first nozzle.
    [12]
    17. The engine of claim 16, wherein the bevel is made: close to the intake valve.
    [13]
    18. Engine distinguishing nozzles fixed
    [14]
    19. The engine of the fuel pump is equipped with a common handle for regulating the fuel supply and gear levers, the gear lever of the second fuel pump for injecting main fuel is directly connected to the handle, and the gear lever of the first fuel pump for injecting auxiliary fuel is connected to the rocker mechanism.
    [15]
    20. The engine for a different fuel pump is equipped with a common displacement regulator.
    [16]
    21. The engine according to paragraphs. 11-20, characterized in that both fuel pumps are rigidly interconnected and are equipped with injection rum.
    [17]
    22. The engine for a different nozzle combined paragraphs. 11,12 ^ 14-16, with the fact that the general grasp, paragraphs 11-18, is about the fact that both handle through paragraphs. 11-19, on the fact that, both are common 11-21, ό t - in that both
    in. one nozzle
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2901211A|DE2901211C2|1979-01-13|1979-01-13|Method for operating an air-compressing, self-igniting internal combustion engine and device for carrying out the method|
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