Oil sprayer with good atomization effect

Abstract

The utility model relates to the technical field of oil sprayers, in particular to an oil sprayer with a good atomization effect, which comprises an oil sprayer body, a high-pressure oil inlet arranged on the oil sprayer body and a sprayer fixedly arranged at the bottom end of the oil sprayer body. A rotary disc is rotationally arranged at the bottom end of the spray head, fixing screws are connected to the rotary disc and the bottom end of the spray head in a threaded mode, evenly-distributed transverse strips are arranged on the side edge of the rotary disc, the transverse strips are close to spray holes in the bottom end of the spray head, and vertical strips are arranged at the ends of the transverse strips. According to the fuel injection nozzle, independent adjustment of the size of each injection hole can be achieved, adjustment of the fuel injection concentration is more accurate, each injection hole can be individually arranged according to actual requirements, the fuel atomization effect is remarkably improved, and by optimizing fuel injection, the fuel utilization rate is increased, and the performance and efficiency of an engine are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel injectors, and in particular relates to a fuel injector with good atomization effect. Background Art

[0002] The fuel injector is a device widely used in the fields of industry, automobile, aerospace, etc. Its core function is to spray the fuel in the form of atomization into a specific space, such as the combustion chamber or furnace of the engine, to ensure the full combustion of the fuel. When working, the high-pressure oil is pumped in through the fuel supply port of the fuel injector, and the high pressure is generated in the fuel injector body to act on the conical surface of the fuel injector nozzle. When the oil pressure exceeds the set value, the fuel injector valve core opens, and the high-pressure oil is sprayed out from the nozzle hole, forming a mist and spraying into the predetermined space, such as the engine cylinder, so that the fuel and air are fully mixed and burned, thereby driving the piston to reciprocate.

[0003] When currently used, the fuel concentration of the fuel injector cannot be adjusted and the atomization is insufficient, which may not meet the combustion requirements of diesel or gasoline engines, resulting in incomplete combustion of the fuel and low energy utilization.

[0004] The existing patent (application number: CN202120644328.2) is a fuel injector with good atomization effect. Through the spray hole with a circular outlet, the spray hole with a rectangular outlet and the spray hole with a triangular outlet, the spray concentration of the fuel sprayed is different, so that the fuel is thick where it should be thick and thin where it should be thin, and the concentration of the fuel is adjustable and controllable. The fuel acts on the baffle to make the fuel bifurcate, and the diameter of the spray hole decreases from the inlet to the outlet, which speeds up the spray speed of the fuel and improves the atomization effect of the fuel, so that the fuel burns more fully. Compared with the prior art, when this device is actually used, the fuel concentration sprayed by it is adjustable, the atomization effect is good, the combustion is sufficient, and the energy utilization rate is high.

[0005] In view of the above problems, existing patents have provided solutions. Although the differences in the size and shape of the spray holes are taken into consideration in the design to achieve different fuel injection effects, in practical applications, it is still difficult to adjust the sizes of these spray holes simultaneously or independently. Improvements are needed. To this end, an injector with good atomization effect is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a fuel injector with good atomization effect, which can not only adjust the size of the spray hole as a whole but also realize independent adjustment of the size of each spray hole.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fuel injector with good atomization effect, comprising a fuel injector body, a high-pressure oil inlet arranged on the fuel injector body, and a nozzle fixedly installed at the bottom end of the fuel injector body, the side and bottom of the nozzle are both provided with evenly distributed spray holes, a turntable is rotatably arranged at the bottom of the nozzle, the turntable and the bottom of the nozzle are threadedly connected with fixing screws, the side of the turntable is provided with evenly distributed horizontal bars, the horizontal bars are close to the spray holes at the bottom end of the nozzle, the ends of the horizontal bars are provided with vertical bars, and the vertical bars are close to the spray holes on the side of the nozzle.

[0008] Preferably, the turntable has evenly distributed sockets 1 on its side, the horizontal bar is slidably arranged on the socket 1, and a damper is arranged between the horizontal bar and the socket 1, the horizontal bar has a socket 2 at its end, the vertical bar is slidably arranged on the socket 2, and a damper is arranged between the vertical bar and the socket 2.

[0009] Preferably, a sealing screw is threadedly connected between the side surface of the nozzle and the spray hole at the bottom end of the nozzle, and a sealing ring is laid on the sealing screw.

[0010] Preferably, a sealing ring is provided on the sealing screw.

[0011] Preferably, the number of groups of the horizontal bars is the same as the number of groups of the spray holes at the bottom of the nozzle, and the number of groups of the vertical bars is the same as the number of groups of the spray holes at the side of the nozzle.

[0012] Preferably, the nozzle, horizontal bars and vertical bars are all made of high-strength stainless steel.

[0013] To sum up, compared with the prior art, the beneficial effect of the utility model is as follows: by setting the cooperation between the injector body, the high-pressure oil inlet, the nozzle, the spray hole, the turntable, the fixing screws, the horizontal bar, the vertical bar, the socket one, the socket two, the sealing screws and the sealing ring, the injector can have the function of overall adjustment of the spray hole size, and can also realize independent adjustment of the size of each spray hole, so that the adjustment of the injection concentration is more precise, and each spray hole can be personalized according to actual needs, thereby significantly improving the atomization effect of the fuel, and by optimizing the fuel injection, not only the fuel utilization rate is improved, but also the performance and efficiency of the engine are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the nozzle of the utility model;

[0016] Figure 3 This is a bottom view of the structure of the nozzle of the utility model;

[0017] Figure 4For this utility model Figure 3 The structure diagram at A is enlarged;

[0018] Figure 5 It is a side view cross-sectional structure diagram of the horizontal bars and vertical bars of the utility model.

[0019] Legend:

[0020] 1. Injector body; 2. High-pressure oil inlet; 3. Nozzle; 4. Spray hole; 5. Turntable; 6. Fixing screw; 7. Horizontal bar; 8. Vertical bar; 9. Socket 1; 10. Socket 2; 11. Sealing screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] A fuel injector with good atomization effect, comprising a fuel injector body 1, a high-pressure fuel inlet 2 arranged on the fuel injector body 1, and a nozzle 3 fixedly installed at the bottom end of the fuel injector body 1, the side of the nozzle 3 and the bottom end of the nozzle 3 are both provided with uniformly distributed spray holes 4, a turntable 5 is rotatably arranged at the bottom end of the nozzle 3, the turntable 5 and the bottom end of the nozzle 3 are threadedly connected with a fixing screw 6, the side of the turntable 5 is provided with uniformly distributed horizontal bars 7, the horizontal bars 7 are close to the spray holes 4 at the bottom end of the nozzle 3, the ends of the horizontal bars 7 are both provided with vertical bars 8, the vertical bars 8 is close to the spray hole 4 on the side of the nozzle 3, and the side of the turntable 5 is provided with evenly distributed sockets 9, the horizontal bar 7 is slidably set on the socket 1 9, and a damper is set between the horizontal bar 7 and the socket 1 9, and a socket 2 10 is opened at the end of the horizontal bar 7, and the vertical bar 8 is slidably set on the socket 2 10, and a damper is set between the vertical bar 8 and the socket 2 10, and a sealing screw 11 is threadedly connected to the spray hole 4 on the side of the nozzle 3 and the bottom of the nozzle 3, and a sealing ring is laid on the sealing screw 11, and a sealing ring is laid on the sealing screw 11.

[0024] First, high-pressure fuel enters the injector body 1 through the high-pressure fuel inlet 2, providing the necessary pressure for subsequent fuel injection. Next, the fuel is guided to the nozzle 3 in the injector body 1. The side of the nozzle 3 and the bottom of the nozzle 3 are designed with evenly distributed spray holes 4. These spray holes 4 are the key parts of fuel atomization.

[0025] The operator removes the fixing screw 6, and rotates the turntable 5 to drive the horizontal bar 7 and the vertical bar 8 to rotate simultaneously. The horizontal bar 7 and the vertical bar 8 move at the bottom end of the nozzle 3 and the side spray hole 4 respectively to adjust the flow area of ​​the spray hole 4. The overall size of the spray hole 4 can be adjusted as needed. After the adjustment is completed, the turntable 5 is fixed again by the fixing screw 6;

[0026] A damper is provided between the first socket 9 and the horizontal bar 7, and a damper is provided between the second socket 10 and the vertical bar 8, which can ensure the stability of the horizontal bar 7 and the vertical bar 8 during the adjustment process, and can also maintain a certain flexibility. The horizontal bar 7 or the vertical bar 8 can be pulled and removed separately, or the position of the horizontal bar 7 and the vertical bar 8 can be adjusted separately, so that the size of each nozzle 4 can be adjusted independently;

[0027] The side and bottom spray holes 4 of the spray head 3 are both threadedly connected with sealing screws 11, and sealing rings are laid on the sealing screws 11. The sealing screws 11 can be tightened at the spray hole 4 to seal it through the sealing ring. The spray hole 4 can be sealed separately as needed to ensure that the fuel will not leak during the spraying process;

[0028] When the fuel injector is working, the high-pressure fuel is sprayed out in the form of atomization through the regulated spray hole 4 and enters the combustion chamber of the engine or other spaces where fuel is needed. Since the size and shape of the spray hole 4 are precisely regulated, the atomization effect of the fuel is significantly improved, thereby improving the utilization rate of the fuel and the combustion efficiency of the engine.

[0029] In addition, since the injector can independently adjust the size of each spray hole 4, the size of the spray hole 4 can be personalized according to different working conditions and requirements of the engine to meet the optimal fuel injection requirements of the engine under various working conditions.

[0030] The number of horizontal bars 7 is the same as the number of spray holes 4 at the bottom of the nozzle 3, and the number of vertical bars 8 is the same as the number of spray holes 4 at the side of the nozzle 3; the sizes of the spray holes 4 can be adjusted simultaneously.

[0031] The nozzle 3, the horizontal bar 7 and the vertical bar 8 are all made of high-strength stainless steel; stainless steel has excellent corrosion resistance and high temperature strength, and is relatively low in cost. It is one of the commonly used materials for fuel injection nozzles in fuel injection nozzle factories and is widely used in vehicles such as automobiles and airplanes.

[0032] Working principle:

[0033] First, high-pressure fuel enters the injector body 1 through the high-pressure fuel inlet 2, providing the necessary pressure for subsequent fuel injection. Next, the fuel is guided to the nozzle 3 in the injector body 1. The side of the nozzle 3 and the bottom of the nozzle 3 are designed with evenly distributed spray holes 4. These spray holes 4 are the key parts of fuel atomization.

[0034] The operator removes the fixing screw 6, and rotates the turntable 5 to drive the horizontal bar 7 and the vertical bar 8 to rotate simultaneously. The horizontal bar 7 and the vertical bar 8 move at the bottom end of the nozzle 3 and the side spray hole 4 respectively to adjust the flow area of ​​the spray hole 4. The overall size of the spray hole 4 can be adjusted as needed. After the adjustment is completed, the turntable 5 is fixed again by the fixing screw 6;

[0035] A damper is provided between the first socket 9 and the horizontal bar 7, and a damper is provided between the second socket 10 and the vertical bar 8, which can ensure the stability of the horizontal bar 7 and the vertical bar 8 during the adjustment process, and can also maintain a certain flexibility. The horizontal bar 7 or the vertical bar 8 can be pulled and removed separately, or the position of the horizontal bar 7 and the vertical bar 8 can be adjusted separately, so that the size of each nozzle 4 can be adjusted independently;

[0036] The side and bottom spray holes 4 of the spray head 3 are both threadedly connected with sealing screws 11, and sealing rings are laid on the sealing screws 11. The sealing screws 11 can be tightened at the spray hole 4 to seal it through the sealing ring. The spray hole 4 can be sealed separately as needed to ensure that the fuel will not leak during the spraying process;

[0037] When the fuel injector is working, the high-pressure fuel is sprayed out in the form of atomization through the regulated spray hole 4 and enters the combustion chamber of the engine or other spaces where fuel is needed. Since the size and shape of the spray hole 4 are precisely regulated, the atomization effect of the fuel is significantly improved, thereby improving the utilization rate of the fuel and the combustion efficiency of the engine.

[0038] In addition, since the injector can independently adjust the size of each spray hole 4, the size of the spray hole 4 can be personalized according to different working conditions and requirements of the engine to meet the optimal fuel injection requirements of the engine under various working conditions.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fuel injector with good atomization effect, comprising a fuel injector body (1), a high-pressure fuel inlet (2) arranged on the fuel injector body (1), and a nozzle (3) fixedly mounted on the bottom end of the fuel injector body (1), characterized in that: The side of the nozzle (3) and the bottom of the nozzle (3) are both provided with uniformly distributed spray holes (4); a turntable (5) is rotatably provided at the bottom of the nozzle (3); a fixing screw (6) is threadedly connected between the turntable (5) and the bottom of the nozzle (3); a uniformly distributed horizontal bar (7) is provided on the side of the turntable (5); the horizontal bar (7) is close to the spray hole (4) at the bottom of the nozzle (3); vertical bars (8) are provided at the ends of the horizontal bars (7); the vertical bars (8) are close to the spray hole (4) on the side of the nozzle (3); a uniformly distributed socket one (9) is provided on the side of the turntable (5); the horizontal bar (7) is slidably provided on the socket one (9), and a damper is provided between the horizontal bar (7) and the socket one (9); a socket two (10) is provided at the end of the horizontal bar (7); the vertical bar (8) is slidably provided on the socket two (10), and a damper is provided between the vertical bar (8) and the socket two (10).

2. A fuel injector with good atomization effect according to claim 1, characterized in that: A sealing screw (11) is threadedly connected on the side of the nozzle (3) and the nozzle hole (4) at the bottom of the nozzle (3), and a sealing ring is laid on the sealing screw (11).

3. A fuel injector with good atomization effect according to claim 1, characterized in that: The number of groups of the horizontal bars (7) is the same as the number of groups of the spray holes (4) at the bottom of the spray head (3), and the number of groups of the vertical bars (8) is the same as the number of groups of the spray holes (4) at the side of the spray head (3).

4. A fuel injector with good atomization effect according to claim 1, characterized in that: The nozzle (3), the horizontal bar (7) and the vertical bar (8) are all made of high-strength stainless steel.

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