Valve body assembly of oil sprayer

Abstract

The utility model discloses an oil sprayer valve body assembly which comprises a valve shell, a valve seat, a valve rod and an electromagnetic coil and further comprises a uniform spraying assembly used for achieving uniform spraying of oil of an oil sprayer. A mounting groove is formed outside the valve shell and is used for mounting the electromagnetic coil; the groove is formed in the valve seat, and an oil storage groove is formed in the inner wall of the groove; the oil inlet pipeline is arranged on the valve seat; the oil inlet cavity is formed in the valve seat and communicates with the oil inlet pipeline; the flow dividing hole is formed in the valve seat, and two ends communicate with the oil storage tank and the oil inlet cavity; the cylindrical oil nozzle is fixedly connected with the valve seat and is axially provided with a plurality of oil spraying holes; the needle valve is arranged in the groove; the fixed plate is fixedly arranged at the top end of the needle valve; two ends of the spring are fixedly connected with the valve seat and the fixed plate; the top of the needle valve is located below the valve rod, in daily production and life, through the arrangement of the oil inlet component, oil can evenly flow into the groove, in cooperation with movement of the needle valve, the oil can be evenly sprayed out through the oil spraying holes in the cylindrical oil spraying nozzle, and the atomization effect of the oil is improved.

Description

Technical Field

[0001] The utility model relates to a fuel injector valve body component. Background Art

[0002] The injector is a precision device with very high processing accuracy, which requires a large dynamic flow range, strong anti-clogging and anti-pollution capabilities, and good atomization performance. For example, the patent announcement number is CN218117934U, a fuel system injection regulating valve. The fuel enters the valve housing from the oil inlet, and at the same time, the electromagnetic coil is energized to suck up the valve stem and drive the valve core to move upward, and the fuel is finally sprayed out from the injection port.

[0003] This embodiment can satisfy the uniform spraying effect of the injector on the oil and ensure the normal use of the product, but it has the following defects:

[0004] 1. The oil input and oil ejection are realized by setting the oil inlet and the oil ejection port, but the oil inlet is set on one side, the oil input is uneven, and the oil ejected through the oil ejection port has poor atomization effect;

[0005] 2. When the parts inside the valve body are damaged, it is difficult to replace them, causing the entire injector to be scrapped, increasing the cost of use. Summary of the invention

[0006] The utility model aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a fuel injector valve body assembly, including a valve housing, a valve seat, a valve stem and an electromagnetic coil, and also includes:

[0008] A uniform injection assembly, which is used to achieve uniform injection of the injector oil;

[0009] Wherein, a mounting groove is arranged outside the valve housing for mounting the electromagnetic coil.

[0010] The uniform spray kit includes:

[0011] Oil inlet component, which is used to achieve uniform oil inlet and spraying;

[0012] A blocking component is used to realize the operation of the control valve seat.

[0013] The oil inlet components include:

[0014] A groove is provided in the valve seat, and an oil storage groove is provided on the inner wall;

[0015] An oil inlet pipeline, which is arranged on the valve seat;

[0016] An oil inlet chamber, which is arranged in the valve seat and communicated with the oil inlet pipeline;

[0017] A plurality of flow diversion holes are arranged in the valve seat, and the two ends thereof are connected with the oil storage tank and the oil inlet cavity.

[0018] Also includes:

[0019] A cylindrical fuel injection nozzle is fixedly connected to the valve seat and communicated with the groove;

[0020] A plurality of fuel injection holes are evenly arranged on the cylindrical fuel injection nozzle;

[0021] The fuel injection hole is arranged along the axial direction of the cylindrical fuel injection nozzle.

[0022] The blocking components include:

[0023] The needle valve is movable in the groove and has a conical bottom;

[0024] A fixed plate, which is fixed on the top of the needle valve;

[0025] A spring, both ends of which are fixedly connected to the valve seat and the fixed plate;

[0026] The top of the needle valve is movably arranged in the valve housing and is located below the valve stem.

[0027] Also includes:

[0028] A pair of retaining rings, which are detachably mounted outside the valve housing and the valve seat;

[0029] A plurality of fixing parts, which are fixed on one of the fixing rings;

[0030] A plurality of fixing grooves are arranged on another fixing ring and are engaged with the fixing piece.

[0031] Also includes:

[0032] A mounting hole, which is provided at the end of the fixing ring;

[0033] The connecting piece is fixedly passed through the mounting hole and fixedly connects the two ends of the fixing ring.

[0034] Also includes:

[0035] The sealing member is movably arranged between the valve housing and the valve seat.

[0036] The beneficial effects of the utility model are as follows:

[0037] 1. Through the setting of the oil inlet component, the oil can be evenly flowed into the groove, and the movement of the needle valve can be coordinated to evenly spray the oil through the oil injection hole on the cylindrical oil injection nozzle, thereby improving the atomization effect of the oil;

[0038] 2. By setting the fixing parts and fixing grooves on the fixing ring, the valve housing and the valve seat can be detachably installed, which is convenient for the inspection and maintenance of the valve housing and the valve seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1This is a front cross-sectional view of the fuel injector in the embodiment of the present application;

[0040] Figure 2 Based Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0041] Figure 3 Based Figure 1 Enlarged schematic diagram of the local structure at point B in the middle.

[0042] Reference numerals

[0043] 1-valve housing, 2-valve seat, 3-valve stem, 4-electromagnetic coil, 5-uniform injection assembly, 6-mounting groove, 7-oil inlet component, 71-groove, 72-oil storage tank, 73-oil inlet pipeline, 74-oil inlet chamber, 75-diverter hole, 76-cylindrical fuel injection nozzle, 77-fuel injection hole, 8-blocking component, 81-needle valve, 82-fixing plate, 83-spring, 9-fixing ring, 10-fixing part, 11-fixing groove, 12-mounting hole, 13-connecting part, 14-sealing part. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0046] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0047] Embodiment 1:

[0048] like Figure 1 to Figure 2As shown, an embodiment of the present application provides an injector valve body assembly, including a valve housing 1, a valve seat 2, a valve stem 3 and an electromagnetic coil 4, and also includes a uniform injection assembly 5, which is used to achieve uniform injection of the injector oil; wherein, a mounting groove 6 is provided on the outside of the valve housing 1 for installing the electromagnetic coil 4.

[0049] Furthermore, the uniform spraying assembly 5 includes an oil inlet component 7, which is used to achieve uniform oil inlet and spraying of the oil.

[0050] Furthermore, the oil inlet component 7 includes a groove 71, which is arranged in the valve seat 2, and an oil storage tank 72 is arranged on the inner wall; an oil inlet pipeline 73, which is arranged on the valve seat 2; an oil inlet cavity 74, which is arranged in the valve seat 2 and connected with the oil inlet pipeline 73; and a plurality of diversion holes 75, which are arranged in the valve seat 2, and the two ends of which connect the oil storage tank 72 and the oil inlet cavity 74.

[0051] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the top of the valve seat 2 is detachably mounted on the outside of the bottom of the valve housing 1; a through hole is provided in the valve housing 1 for installing the valve stem 3; a mounting groove 6 is provided on the outside of the valve housing 1 for installing the electromagnetic coil 4, and the inner wall of the tube body is thinned by the opening of the mounting groove 6, thereby increasing the magnetic flux; by controlling the power supply of the electromagnetic coil 4, the valve stem 3 is driven to move, thereby realizing the operation of the injector.

[0052] A groove 71 is provided inside the valve seat 2, and the bottom of the groove 71 is conical; an oil inlet pipe 73 is provided outside the valve seat 2, and an oil inlet cavity 74 is provided inside. The oil inlet cavity 74 is an annular cavity, and the oil inlet pipe 73 is connected with the oil inlet cavity 74 through an oil inlet hole, so that oil can flow from the oil inlet pipe 73 into the oil inlet cavity 74.

[0053] An oil storage groove 72 is provided on the inner wall of the groove 71. The oil storage groove 72 is an annular groove with an opening facing the groove 71 and connected to the groove 71. The oil storage groove 72 is connected to the oil inlet chamber 74 through a plurality of evenly distributed diverter holes 75, so that the oil entering the oil inlet chamber 74 can flow evenly into the oil storage groove 72 through the diverter holes 75, and then flow evenly from the oil storage groove 72 to the groove 71, thereby realizing uniform oil inlet to the injector.

[0054] Embodiment 2:

[0055] like Figure 1 to Figure 2 As shown, in this embodiment, in addition to the structural features of the previous embodiments, a blocking component 8 is also included, which is used to realize the operation of the control valve seat 2.

[0056] Furthermore, it also includes a cylindrical fuel injection nozzle 76, which is fixedly connected to the valve seat 2 and communicated with the groove 71; a plurality of fuel injection holes 77, which are evenly arranged on the cylindrical fuel injection nozzle 76; wherein the fuel injection holes 77 are arranged along the axial direction of the cylindrical fuel injection nozzle 76.

[0057] Furthermore, the blocking component 8 includes: a needle valve 81, which is movably arranged in the groove 71 and has a conical bottom; a fixed plate 82, which is fixedly arranged at the top of the needle valve 81; a spring 83, whose two ends are fixedly connected to the valve seat 2 and the fixed plate 82; wherein, the top of the needle valve 81 is movably arranged in the valve housing 1, and is located below the valve stem 3.

[0058] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the cylindrical fuel injector 76 is fixedly arranged at the bottom of the valve seat 2 and is connected to the groove 71; a plurality of fuel injection holes 77 are arranged on the cylindrical fuel injector 76, and the fuel injection holes 77 are arranged along the axial direction of the cylindrical fuel injector 76, and the fuel injection holes 77 are arranged at a certain interval; at the same time, the length of the fuel injector is longer than the existing specifications, and the diameter of the fuel injection hole 77 is smaller than the existing specifications, so that the oil can be evenly sprayed out from the fuel injector.

[0059] The top of the needle valve 81 is movably installed in the through hole of the valve housing 1 , and the bottom is movably installed in the groove 71 of the valve seat 2 . The bottom of the needle valve 81 is conical, matching the conical shape of the bottom of the groove 71 .

[0060] A fixing plate 82 is fixedly installed on the top of the needle valve 81, and the top of the fixing plate 82 abuts against the bottom end of the valve stem 3; a spring 83 is sleeved outside the top of the needle valve 81, and the two ends of the spring 83 are fixedly connected to the fixing plate 82 and the valve seat 2. The elastic force of the spring 83 causes the needle valve 81 to retract upward without being subjected to force. When the injector is working, the valve stem 3 presses the fixing plate 82 downward, thereby pushing the needle valve 81 to move, so that the bottom of the needle valve 81 moves to the bottom of the groove 71, and the needle valve 81 is pressed downward for blocking.

[0061] Embodiment 3:

[0062] like Figures 1 to 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a pair of fixing rings 9, which are detachably mounted outside the valve housing 1 and the valve seat 2; a plurality of fixing members 10, which are fixedly arranged on one of the fixing rings 9; and a plurality of fixing grooves 11, which are arranged on another fixing ring 9 and engage with the fixing members 10.

[0063] Furthermore, it also includes a mounting hole 12, which is provided at the end of the fixing ring 9; a connecting piece 13, which is fixedly passed through the mounting hole 12 and fixedly connects the two ends of the fixing ring 9.

[0064] Furthermore, it also includes a sealing member 14 which is movably disposed between the valve housing 1 and the valve seat 2 .

[0065] In this embodiment of the present application, due to the adoption of the above-mentioned structure; the fixing ring 9 is in the shape of an unsealed circular ring; a pair of fixing rings 9 are respectively arranged outside the bottom of the valve housing 1 and outside the top of the valve seat 2, and at the same time, a plurality of fixing members 10 and a plurality of fixing grooves 11 are respectively arranged on the inner sides of the pair of fixing rings 9, and the shapes of the fixing members 10 and the fixing grooves 11 match and can be engaged; the sealing member 14 is a sealing ring, which is arranged between the valve housing 1 and the valve seat 2, and is used to achieve a sealing effect on the valve housing 1 and the valve seat 2.

[0066] Mounting holes 12 are provided at both ends of the fixing ring 9, and the connecting member 13 includes bolts and nuts. The bolts movably penetrate the mounting holes 12 at both ends, and the fixing ring 9 is fixedly installed by installing the nuts onto the bolts and tightening them.

[0067] When the fuel injector is to be repaired, the connecting piece 13 can be disassembled, thereby separating the fixing piece 10 from the fixing groove 11, so as to separate the valve housing 1 from the valve seat 2, thereby facilitating the repair of the inside of the fuel injector.

[0068] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0069] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fuel injector valve body assembly, comprising a valve housing (1), a valve seat (2), a valve stem (3) and an electromagnetic coil (4), characterized in that: Also includes: A uniform injection assembly (5), which is used to achieve uniform injection of the oil in the injector; The valve housing (1) is provided with a mounting groove (6) on the outside for mounting the electromagnetic coil (4), and the uniform spraying assembly (5) comprises: An oil inlet component (7) for achieving uniform oil inlet and spraying of oil; A blocking component (8) is used to control the operation of the valve seat (2), and the oil inlet component (7) comprises: A groove (71) is provided in the valve seat (2), and an oil storage groove (72) is provided on the inner wall thereof; An oil inlet pipeline (73) disposed on the valve seat (2); An oil inlet chamber (74) is disposed in the valve seat (2) and is in communication with the oil inlet pipeline (73); A plurality of flow diversion holes (75) are provided in the valve seat (2), the two ends of which are connected to the oil storage tank (72) and the oil inlet chamber (74), and further include: A cylindrical oil injection nozzle (76) fixedly connected to the valve seat (2) and communicating with the groove (71); A plurality of oil injection holes (77) are evenly arranged on the cylindrical oil injection nozzle (76); Wherein, the oil injection hole (77) is arranged along the axial direction of the cylindrical oil injection nozzle (76).

2. The fuel injector valve body assembly according to claim 1, characterized in that: The blocking component (8) comprises: A needle valve (81) is movably disposed in the groove (71) and has a conical bottom; A fixed plate (82) fixedly disposed on the top of the needle valve (81); A spring (83), two ends of which are fixedly connected to the valve seat (2) and the fixed plate (82); The top of the needle valve (81) is movably arranged in the valve housing (1) and is located below the valve stem (3).

3. The fuel injector valve body assembly according to claim 1, characterized in that: Also includes: A pair of fixing rings (9) detachably mounted outside the valve housing (1) and the valve seat (2); A plurality of fixing members (10) fixedly arranged on one of the fixing rings (9); A plurality of fixing grooves (11) are arranged on another fixing ring (9) and are engaged with the fixing member (10).

4. The fuel injector valve body assembly according to claim 3, characterized in that: Also includes: A mounting hole (12) provided at the end of the fixing ring (9); The connecting piece (13) is fixedly passed through the mounting hole (12) and fixedly connected to the two ends of the fixing ring (9).

5. The fuel injector valve body assembly according to claim 1, characterized in that: Also includes: A sealing member (14) is movably disposed between the valve housing (1) and the valve seat (2).

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