Oil nozzle assembly

Abstract

The utility model relates to the technical field of oil nozzles, and discloses an oil nozzle assembly which comprises an oil nozzle assembly and is characterized in that the top of the oil nozzle assembly is fixedly connected with an oil pipe assembly, the oil nozzle assembly comprises an oil nozzle shell, and the bottom of the oil nozzle shell is fixedly connected with a nozzle assembly. A connecting ring is fixedly connected to the top of the oil nozzle shell, a fixing ring is fixedly connected to the inner side of the bottom end of the oil nozzle shell, a first oil conveying pipe is connected to one end of the top of the fixing ring through a pipeline, and a second oil conveying pipe is connected to the other end of the top of the fixing ring through a pipeline. An annular space is formed among the oil nozzle shell, the fixing ring and the nozzle assembly, an electromagnetic assembly is fixedly connected to the bottom of the first oil conveying pipe, and a needle valve assembly is fixedly connected to the bottom of the electromagnetic assembly, so that the problem that after long-time use, impurities and deposited carbon in fuel oil can gradually block spraying holes of the oil nozzle is solved, and the service life of the oil nozzle is prolonged. Therefore, the fuel injection effect is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel injection nozzle technology field more specifically relates to a fuel injection nozzle assembly. BACKGROUND

[0002] The fuel injection nozzle assembly is mainly composed of a fuel injector body, a pressure regulating screw, a pressure regulating spring, an oil return pipe bolt, an oil inlet pipe joint, a filter element, a ejector rod, a needle valve and a needle valve body, and the matching precision between them directly affects the working performance of the fuel injection nozzle and the atomization effect of fuel, and the fuel injection nozzle is widely used in internal combustion engines of automobiles, motorcycles and ships, and fields such as gas turbines and generators.

[0003] The utility model discloses a kind of fuel injection nozzle assemblies, to the disassembly and installation of existing fuel injection nozzle is more inconvenient, it is inconvenient for people to overhaul, fuel injection nozzle is not firmly installed, the shaking of automobile long-time driving can cause the problem that fuel injection nozzle connection appears loose, present and propose following scheme, it includes fuel injection nozzle main body, the side outer wall of the fuel injection nozzle main body is equipped with inlet nozzle, the top of the fuel injection nozzle main body is equipped with multiple oil outlet holes, the bottom of the fuel injection nozzle main body is fixedly connected with two symmetrical mounting blocks, the bottom of two mounting blocks is equipped with the first limiting hole that is penetrated, in the utility model, fuel injection nozzle can be conveniently installed and disassembled, provide convenience for overhaul, the stability of connection can be guaranteed using the multiple limiting of structure, avoid fuel injection nozzle loose, fuel atomization effect can also be enhanced, so that fuel is fully combusted.

[0004] But there are still the following problems, after long time use, impurities and carbon deposit in fuel gradually block the spray hole of fuel injection nozzle, affect the injection effect of fuel. Utility model content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fuel injection nozzle assembly to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of oil nozzle assembly, including oil injection assembly, its characterized in that, the top of the oil injection assembly is fixedly connected with oil pipe assembly, the oil injection assembly includes oil nozzle shell, the bottom of the oil nozzle shell is fixedly connected with spray head assembly, the top of the oil nozzle shell is fixedly connected with connecting ring, the inner side of the bottom end of the oil nozzle shell is fixedly connected with fixed ring, one end pipe connection of the top of the fixed ring is equipped with first oil pipe, the other end pipe connection of the top of the fixed ring is equipped with second oil pipe, annular space is formed between the oil nozzle shell, fixed ring, spray head assembly, the bottom of the first oil pipe is fixedly connected with electromagnetic assembly, the bottom of the electromagnetic assembly is fixedly connected with needle valve assembly, the side of the needle valve assembly is fixedly sleeved with connecting plate, the top of the connecting plate is welded with spring, the top of the spring is connected in the bottom of electromagnetic assembly.

[0007] Further, one side of the oil nozzle shell is electrically connected with an energizing block, one end of the top of the energizing block is electrically connected with a first electrical connector, the other end of the top of the energizing block is electrically connected with a second electrical connector.

[0008] Further, the spray head assembly includes a spray head bottom shell, two connecting blocks are welded to the inner side of the spray head bottom shell, an intermediate shell is welded to one end of the two connecting blocks, and the intermediate shell is located in the middle of the spray head bottom shell.

[0009] Further, the electromagnetic assembly includes a protective shell, a conductor solenoid is electrically connected to the inside of the protective shell, and the needle valve assembly is fixedly connected to the bottom of the protective shell.

[0010] Further, the needle valve assembly includes a connecting rod, the connecting rod is fixedly connected to a ring-shaped needle valve at the bottom, two grooves are provided at the bottom end of the ring-shaped needle valve, and the grooves are attached to the connecting blocks.

[0011] Further, the oil pipe assembly includes an oil pipe joint, an oil inlet pipe is pipe-connected to the top of the oil pipe joint, an oil pipe shell is fixedly connected to the bottom of the oil pipe joint, and a first branch pipe is pipe-connected to one side of the bottom end of the oil inlet pipe.

[0012] Further, a second branch pipe is pipe-connected to the other side of the bottom end of the oil inlet pipe, a first filter element is pipe-connected to one end of the first branch pipe, a second filter element is pipe-connected to one end of the second branch pipe, the bottom end of the first filter element is pipe-connected to the first oil pipe, and the bottom end of the second filter element is pipe-connected to the second oil pipe.

[0013] The utility model discloses technical effect and advantage:

[0014] 1. The utility model discloses a spray head subassembly is equipped with, spring makes annular needle valve keep in the position of closing spray head subassembly, at this moment, same fuel pressure is applied to the top surface of electromagnetic subassembly, because the top surface of electromagnetic subassembly is larger stress area, generates larger downward force, makes annular needle valve keep in the closed state, the conductor solenoid is energized, and generates the electromagnetic force upwards, and the electromagnetic force is greater than the force of spring, makes the connecting rod move upwards, and the connecting rod is connected with annular needle valve, makes annular needle valve rise, and the rise of annular needle valve can open the oil leakage channel in the inside of spray head subassembly, leads to the pressure reduction of the top surface of electromagnetic subassembly, at this moment, the pressure on the boss of annular needle valve is greater than the pressure on the top surface of electromagnetic subassembly, makes needle valve rise from the closed position, and fuel is high -speed sprayed out between the annular gap between the shaft needle of needle valve head and the injection hole, forms the mist, is favorable to full combustion, is favorable to avoid the problem that the impurity and carbon deposit in fuel can gradually block the injection hole of fuel injection nozzle after long -term use, thereby avoids the influence of fuel injection effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole structure schematic diagram of the utility model;

[0016] Figure 2 It is spray oil subassembly sectional structure schematic diagram of the utility model;

[0017] Figure 3 It is spray head subassembly structure schematic diagram of the utility model;

[0018] Figure 4 It is needle valve subassembly structure schematic diagram of the utility model;

[0019] Figure 5 It is electromagnetic subassembly structure schematic diagram of the utility model;

[0020] Figure 6 It is oil pipe subassembly structure schematic diagram of the utility model.

[0021] The figure mark is: 1, spray oil subassembly;101, fuel injection nozzle shell;102, spray head subassembly;1021, spray head bottom shell;1022, intermediate shell;1023, connecting block;103, connecting ring;104, fixed ring;105, first oil delivery pipe;106, second oil delivery pipe;107, electromagnetic subassembly;1071, protection shell;1072, conductor solenoid;108, connecting plate;109, needle valve subassembly;1091, connecting rod;1092, annular needle valve;1093, recess;110, spring;111, electrifying block;112, first electricity head;113, second electricity head;2, oil pipe subassembly;201, oil pipe joint;202, oil inlet pipe;203, oil pipe shell;204, first branch pipe;205, second branch pipe;206, first filter element;207, second filter element. DETAILED DESCRIPTION

[0022] The technical solutions in the utility model will be described clearly and completely in combination with the drawings in the utility model, and additionally, the forms of the structures recorded in the following embodiments are only examples, and the oil nozzle assembly involved in the utility model is not limited to the structures recorded in the following embodiments, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] With reference to Figures 1 to 6 The utility model provides a kind of oil nozzle assembly, including oil injection component 1, the top of oil injection component 1 is fixedly connected with oil pipe component 2.

[0024] It needs to be specifically supplemented in the embodiment that oil injection component 1 is provided with spray head assembly, spring keeps annular needle valve in the position of closing spray head assembly, at this time, same fuel pressure is applied to the top surface of electromagnetic assembly, due to the large force area of the top surface of electromagnetic assembly, larger downward force is generated, so that annular needle valve is kept in closed state, after conductor solenoid is energized, electromagnetic force is generated upward, the electromagnetic force is greater than the force of spring, so that connecting rod moves upward, connecting rod is connected with annular needle valve, so that annular needle valve rises, the rising of annular needle valve will open a oil leakage passage inside spray head assembly, leading to the pressure reduction of the top surface of electromagnetic assembly, at this time, the pressure acting on the boss of annular needle valve is greater than the pressure of the top surface of electromagnetic assembly, so that needle valve rises from closed position, fuel is sprayed out at high speed through the annular gap between the shaft needle of needle valve head and spray hole, forms mist, is conducive to full combustion, is conducive to avoiding the problem that impurities and carbon deposit in fuel will gradually block the spray hole of oil nozzle after long time use, to avoid affecting the injection effect of fuel, the specific structure of above-mentioned each component and working principle will be described in detail subsequently.

[0025] In one preferred embodiment, the oil injection assembly 1 comprises an oil injection nozzle shell 101, a nozzle assembly 102 fixedly connected to the bottom of the oil injection nozzle shell 101, a connecting ring 103 fixedly connected to the top of the oil injection nozzle shell 101, a fixed ring 104 fixedly connected to the inner side of the bottom end of the oil injection nozzle shell 101, a first oil delivery pipe 105 connected to one end of the top of the fixed ring 104, a second oil delivery pipe 106 connected to the other end of the top of the fixed ring 104, an annular space formed between the oil injection nozzle shell 101, the fixed ring 104 and the nozzle assembly 102, an electromagnetic assembly 107 fixedly connected to the bottom of the first oil delivery pipe 105, a needle valve assembly 109 fixedly connected to the bottom of the electromagnetic assembly 107, a connecting plate 108 fixedly sleeved to the side of the needle valve assembly 109, a spring 110 welded to the top of the connecting plate 108, the top of the spring 110 connected to the bottom of the electromagnetic assembly 107, an electrification block 111 electrically connected to one side of the oil injection nozzle shell 101, a first electrical connector 112 electrically connected to one end of the top of the electrification block 111, and a second electrical connector 113 electrically connected to the other end of the top of the electrification block 111.

[0026] In one preferred embodiment, the nozzle assembly 102 comprises a nozzle bottom shell 1021, two connecting blocks 1023 welded to the inner side of the nozzle bottom shell 1021, and an intermediate shell 1022 welded to one end of the two connecting blocks 1023 and located in the middle of the nozzle bottom shell 1021.

[0027] In one preferred embodiment, the electromagnetic assembly 107 comprises a protective shell 1071, a conductor solenoid 1072 electrically connected to the inside of the protective shell 1071, and a needle valve assembly 109 fixedly connected to the bottom of the protective shell 1071.

[0028] In one preferred embodiment, the needle valve assembly 109 comprises a connecting rod 1091, an annular needle valve 1092 fixedly connected to the bottom of the connecting rod 1091, and two grooves 1093 provided at the bottom end of the annular needle valve 1092 and matched with the connecting blocks 1023.

[0029] In the present embodiment, it needs to be specifically supplemented that the spring 110 keeps the needle valve assembly 109 in the position of closing the nozzle assembly 102, at this time, the same fuel pressure is applied to the top surface of the electromagnetic assembly 107, due to the large force receiving area of the top surface of the electromagnetic assembly 107, a larger downward force is generated, so that the needle valve assembly 109 is kept in the closed state, after the conductor solenoid 1072 is energized, an upward electromagnetic force is generated, which is greater than the force of the spring 110, so that the connecting rod 1091 moves upward, the connecting rod 1091 is connected with the annular needle valve 1092, so that the annular needle valve 1092 rises, the rising of the annular needle valve 1092 will open an oil leakage passage inside the nozzle assembly, which causes the pressure on the top surface of the electromagnetic assembly 107 to decrease, at this time, the pressure acting on the boss of the annular needle valve 1092 is greater than the pressure on the top surface of the electromagnetic assembly 107, so that the needle valve assembly 109 rises from the closed position, and the fuel is sprayed out at high speed through the annular gap between the shaft needle of the needle valve head and the injection hole, forming a mist, which is beneficial to full combustion and avoiding the problem that impurities and carbon deposits in the fuel will gradually block the injection hole of the fuel nozzle after long-term use, thereby avoiding affecting the fuel injection effect.

[0030] In a preferred embodiment, the oil pipe assembly 2 comprises an oil pipe joint 201, the top of the oil pipe joint 201 is connected with an oil inlet pipe 202 in a pipeline manner, the bottom of the oil pipe joint 201 is fixedly connected with an oil pipe shell 203, one side of the bottom end of the oil inlet pipe 202 is connected with a first branch pipe 204 in a pipeline manner, the other side of the bottom end of the oil inlet pipe 202 is connected with a second branch pipe 205 in a pipeline manner, one end of the first branch pipe 204 is connected with a first filter element 206 in a pipeline manner, one end of the second branch pipe 205 is connected with a second filter element 207 in a pipeline manner, the bottom end of the first filter element 206 is connected with a first oil delivery pipe 105 in a pipeline manner, and the bottom end of the second filter element 207 is connected with a second oil delivery pipe 106 in a pipeline manner.

[0031] The working principle of the utility model is: spring 110 makes needle valve assembly 109 keep in the position of closing nozzle assembly 102, at this moment, same fuel pressure is applied to the top surface of electromagnetic assembly 107, because the top surface of electromagnetic assembly 107 has larger force area, larger downward force is generated, needle valve assembly 109 keeps in the closed state, after the conduction of conductor solenoid 1072, upward electromagnetic force is generated, the electromagnetic force is larger than the force of spring 110, makes connecting rod 1091 move upward, connecting rod 1091 is connected with annular needle valve 1092, makes annular needle valve 1092 rise, the rising of annular needle valve 1092 can open an oil leakage passage inside nozzle assembly, causes the pressure of the top surface of electromagnetic assembly 107 to reduce, at this moment, the pressure on the boss of annular needle valve 1092 is larger than the pressure of the top surface of electromagnetic assembly 107, makes needle valve assembly 109 rise from the closed position, fuel is high-speed sprayed out through the annular gap between the shaft needle of needle valve head and the spray hole, forms the mist, is favorable to the full combustion, is favorable to avoiding the problem that the impurities and carbon deposit in fuel can gradually block the spray hole of fuel nozzle after long-time use, thereby avoiding the influence on the injection effect of fuel.

[0032] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0033] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0034] Finally: the above only for the preferred embodiment of the utility model has, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. An oil jet assembly comprising an oil jet assembly (1), characterized in that, The top of the oil injection assembly (1) is fixedly connected with an oil pipe assembly (2), the oil injection assembly (1) comprises an oil injection nozzle shell (101), the bottom of the oil injection nozzle shell (101) is fixedly connected with a spray head assembly (102), the top of the oil injection nozzle shell (101) is fixedly connected with a connecting ring (103), the inner side of the bottom of the oil injection nozzle shell (101) is fixedly connected with a fixed ring (104), one end of the top of the fixed ring (104) is pipeline-connected with a first oil conveying pipe (105), the other end of the top of the fixed ring (104) is pipeline-connected with a second oil conveying pipe (106), the oil injection nozzle shell (101), the fixed ring (104) and the spray head assembly (102) form an annular space, the bottom of the first oil conveying pipe (105) is fixedly connected with an electromagnetic assembly (107), the bottom of the electromagnetic assembly (107) is fixedly connected with a needle valve assembly (109), the side of the needle valve assembly (109) is fixedly sleeved with a connecting plate (108), the top of the connecting plate (108) is welded with a spring (110), and the top of the spring (110) is connected to the bottom of the electromagnetic assembly (107).

2. An oil jet assembly according to claim 1, wherein: The side of the oil injection nozzle shell (101) is electrically connected with an electrification block (111), one end of the top of the electrification block (111) is electrically connected with a first electric connection head (112), and the other end of the top of the electrification block (111) is electrically connected with a second electric connection head (113).

3. The fuel nozzle assembly of claim 1, wherein: The spray head assembly (102) comprises a spray head bottom shell (1021), the inner side of the spray head bottom shell (1021) is welded with two connecting blocks (1023), one end of the two connecting blocks (1023) is welded with an intermediate shell (1022), and the intermediate shell (1022) is located in the middle of the spray head bottom shell (1021).

4. The fuel nozzle assembly of claim 1, wherein: The electromagnetic assembly (107) comprises a protection shell (1071), the inside of the protection shell (1071) is electrically connected with a conductor solenoid (1072), and the bottom of the protection shell (1071) is fixedly connected with the needle valve assembly (109).

5. The fuel nozzle assembly of claim 1, wherein: The needle valve assembly (109) comprises a connecting rod (1091), the bottom of the connecting rod (1091) is fixedly connected with an annular needle valve (1092), the bottom end of the annular needle valve (1092) is provided with two grooves (1093), and the grooves (1093) are attached to the connecting blocks (1023).

6. The fuel nozzle assembly of claim 1, wherein: The oil pipe assembly (2) comprises an oil pipe joint (201), the top of the oil pipe joint (201) is pipeline-connected with an oil inlet pipe (202), the bottom of the oil pipe joint (201) is fixedly connected with an oil pipe shell (203), and the bottom end of the oil inlet pipe (202) is pipeline-connected with a first branch pipe (204) on one side.

7. An oil jet assembly according to claim 6, wherein: The other side of the bottom end of the oil inlet pipe (202) is connected with a second branch pipe (205) in pipeline, one end of the first branch pipe (204) is connected with a first filter core (206) in pipeline, one end of the second branch pipe (205) is connected with a second filter core (207) in pipeline, the bottom end of the first filter core (206) is connected with a first oil delivery pipe (105) in pipeline, and the bottom end of the second filter core (207) is connected with a second oil delivery pipe (106) in pipeline.

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