Injector adapter for constant volume incendiary bomb

Abstract

The present invention discloses a fuel injector adapter device for a constant volume incendiary bomb, comprising an adapter lower seat, an adapter upper seat for installing a fuel injector, and a slider connected to the adapter upper seat, the adapter lower seat having a slide groove for inserting the slider, the slide groove extending along the entire circumference on the adapter upper seat, a plurality of sliders are provided, the adapter upper seat is rotatable relative to the adapter lower seat, and when the adapter upper seat rotates relative to the adapter lower seat, the fuel injector is driven to rotate synchronously. The fuel injector adapter device for a constant volume incendiary bomb of the present invention can be adapted to a fuel injector with a transverse oil inlet method, meeting the requirements for matching a transverse oil inlet fuel injector, and by moving the slider and the adapter upper seat, the fuel injector can be installed at different angles to observe the spray conditions of the fuel injector at different angles.

Description

Technical Field

[0001] The invention belongs to the technical field of piston engine fuel injector testing, and in particular relates to a fuel injector adapter device for a constant volume combustion bomb. Background Art

[0002] As the requirements for engine economy and emissions become higher and higher, the study of engine combustion systems becomes more and more important, and the spray characteristics of the injector directly affect the combustion of the engine, which in turn affects the engine's power, economy and emissions. Engine spray and combustion is a very complex process. In order to deeply and accurately study the injection, atomization, ignition and combustion of engine fuel, most of them are currently carried out in visual simulation devices. The most commonly used test equipment system is the constant volume combustion bomb system.

[0003] The constant volume combustion bomb is mainly used to simulate the engine spray and combustion conditions near the top dead center of the piston. The pressure and temperature of the gas in the bomb are controlled by the intake pressurization system and the heating system, so as to simulate the environmental pressure and temperature in the combustion chamber when the piston is at the top dead center. Then, through the transparent observation window, the engine spray and combustion process can be observed, photographed and tested, and the injector characteristics can be quantitatively evaluated. The constant volume combustion bomb can test the spray characteristics, spray wall impact and spray ignition combustion process of different injectors, different injection pressures, different temperatures and different environmental back pressures, which is of great significance to the development of the engine combustion system.

[0004] The fuel injector adapter of the constant volume incendiary bomb is mainly used to match and install the fuel injector. According to the fuel inlet method, the fuel injector is generally divided into lateral fuel inlet and longitudinal fuel inlet. At present, the fuel injector adapter of the upper end cover of the constant volume incendiary bomb matches the longitudinal fuel inlet injector, which is easier to design, while the adapter matching the lateral fuel inlet injector is more complicated to design. Therefore, it is very necessary to improve an injector adapter device to match the injector with lateral fuel inlet. In addition, it is necessary to observe the spray of the fuel injector at different angles during the experiment, so the fuel injector adapter device needs to be able to meet the installation of the fuel injector at different angles. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an injector adapter for a constant volume combustion bomb, the purpose of which is to meet the requirements of matching a transverse oil-feeding injector and realizing the requirements of installing the injector at different angles.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an injector adapter device for a constant volume incendiary bomb, comprising an adapter lower seat, an adapter upper seat for mounting the injector and a slider connected to the adapter upper seat, the adapter lower seat having a slide groove for inserting the slider, the slide groove extending along the entire circumference on the adapter upper seat, a plurality of sliders are arranged, the adapter upper seat is rotatable relative to the adapter lower seat and when the adapter upper seat rotates relative to the adapter lower seat, the injector is driven to rotate synchronously.

[0007] The slider is fixedly connected to the adapter upper seat, and all the sliders are evenly distributed along the circumferential direction on the adapter upper seat.

[0008] The adapter lower seat has a lower mounting hole for the fuel injector to pass through, and the adapter upper seat has an upper mounting hole for the fuel injector to pass through. The upper mounting hole and the lower mounting hole are connected and coaxially arranged.

[0009] The adapter upper seat is provided with a clamping block for clamping the fuel injector.

[0010] The adapter upper seat has a transverse oil inlet hole for accommodating an oil inlet pipe, the oil inlet pipe is connected to the fuel injector, and the axis of the transverse oil inlet hole is perpendicular to the axis of the fuel injector.

[0011] The adapter upper seat includes an upper seat body and a lug and an upper boss arranged on the upper seat body. The slider is connected to the lug, the lug extends toward the outside of the upper seat body, the upper boss extends toward the inside of the upper seat body, and the upper boss has an avoidance hole for the oil inlet pipe to pass through.

[0012] The adapter upper seat also includes a lower boss connected to the upper seat body, the lower boss is located between the upper seat body and the adapter lower seat, the transverse oil inlet hole is arranged on the lower boss, and the oil inlet pipe passes through the avoidance hole on the upper boss and then is inserted into the transverse oil inlet hole.

[0013] The injector adapter device for the constant volume combustion bomb also includes a locking block connected to the adapter upper seat and used to fix the oil inlet pipe on the adapter upper seat.

[0014] The locking block is connected to the lower boss, and a limiting protrusion is provided on the locking block, which is inserted into the transverse oil inlet hole and applies an axial pressing force to the oil inlet pipe, and the limiting protrusion is a circular ring structure.

[0015] The adapter lower seat is connected to the constant volume incendiary bomb through bolts, and the adapter upper seat and the adapter lower seat are located in the inner cavity of the upper end cover of the constant volume incendiary bomb.

[0016] The fuel injector adapter device for a constant volume combustion bomb of the present invention can be adapted to a fuel injector with a transverse oil inlet mode, meeting the requirements for matching the fuel injector with a transverse oil inlet mode, and the fuel injector can be installed at different angles by moving a slider and an adapter upper seat, so as to observe the spray conditions of the fuel injector at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is an exploded schematic diagram of the injector adapter device for a constant volume combustion bomb of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation of the injector adapter device and the upper end cover of the constant volume combustion bomb of the present invention;

[0020] Figure 3 It is a cross-sectional view of the injector adapter device and the upper end cover of the constant volume combustion bomb of the present invention;

[0021] Figure 4 It is a structural diagram of the adapter upper seat;

[0022] Figure 5 is a cross-sectional view of the upper seat of the adapter;

[0023] Figure 6 It is a schematic diagram of the structure of the lower seat of the adapter;

[0024] Markings in the figure are: 1, upper end cover; 2, slider; 3, adapter lower seat; 301, lower mounting hole; 302, bolt hole; 303, water inlet hole; 304, water outlet hole; 305, slide groove; 4, locking block; 5, fuel injector; 6, clamping block; 7, adapter upper seat; 701, upper seat body; 702, lug; 703, upper boss; 704, lower boss; 705, avoidance hole; 706, lateral oil inlet hole; 707, upper mounting hole. DETAILED DESCRIPTION

[0025] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0026] like Figures 1 to 6As shown, the present invention provides an injector adapter device for a constant volume incendiary bomb, comprising an adapter lower seat 3, an adapter upper seat 7 for mounting an injector 5, and a slider 2 connected to the adapter upper seat 7, the adapter lower seat 3 having a slide groove 305 for inserting the slider 2, the slide groove 305 extending along the entire circumference on the adapter upper seat 7, a plurality of sliders 2 are provided, the adapter upper seat 7 is rotatable relative to the adapter lower seat 3, and when the adapter upper seat 7 rotates relative to the adapter lower seat 3, the injector 5 is driven to rotate synchronously.

[0027] Specifically, if Figures 1 to 6 As shown, the slider 2 is fixedly connected to the adapter upper seat 7, and all the sliders 2 are evenly distributed along the circumference on the adapter upper seat 7 with the axis of the adapter upper seat 7 as the center line. The injector 5 is arranged at the center of the adapter upper seat 7, the adapter lower seat 3 has a lower mounting hole 301 for the injector 5 to pass through, and the adapter upper seat 7 has an upper mounting hole 707 for the injector 5 to pass through, and the upper mounting hole 707 and the lower mounting hole 301 are connected and coaxially arranged. The upper mounting hole 707 is a circular hole arranged at the center of the adapter upper seat 7, and the lower mounting hole 301 is a circular hole arranged at the center of the adapter upper seat 7, and the injector 5 passes through the upper mounting hole 707 and the lower mounting hole 301. The slide groove 305 is an annular groove extending along the entire circumference of the adapter lower seat 3 inside the adapter lower seat 3, one end of the slider 2 is located in the slide groove 305, and the other end of the slider 2 is fixedly connected to the adapter upper seat 7. The fuel injector 5 is a structure that adopts a lateral oil supply method. The axis of the fuel inlet hole of the fuel injector 5 is perpendicular to the axis of the fuel injector 5. The fuel inlet hole of the fuel injector 5 forms an opening on the outer circumferential surface of the fuel injector 5. The adapter upper seat 7 is coaxially arranged with the adapter lower seat 3 and the fuel injector 5. The rotation center line of the adapter upper seat 7 when rotating is also its axis. The adapter upper seat 7 can rotate 360° relative to the adapter lower seat 3. When the adapter upper seat 7 rotates relative to the adapter lower seat 3, the adapter upper seat 7 can drive the fuel injector 5 to rotate synchronously. The slider 2 slides along the slide groove 305, so that the spray angle of the fuel injector 5 can be adjusted arbitrarily, and the spray conditions of the fuel injector 5 under different angles can be observed.

[0028] like Figures 1 to 3 As shown, a clamping block 6 for clamping the fuel injector 5 is provided on the adapter upper seat 7. The clamping block 6 is fixedly mounted on the adapter upper seat 7 by bolts, and an opening is provided on one side of the clamping block 6 for the fuel injector 5 to pass through. The clamping block 6 just clamps the fuel injector 5 at the opening, thereby clamping and fixing the fuel injector 5 on the adapter upper seat 7.

[0029] like Figures 1 to 5As shown, the adapter upper seat 7 has a transverse oil inlet hole 706 for accommodating an oil inlet pipe, the oil inlet pipe is connected to the fuel injector 5, the axis of the transverse oil inlet hole 706 is perpendicular to the axis of the fuel injector 5, and the axis of the transverse oil inlet hole 706 is also perpendicular to the axis of the upper mounting hole 707. When the fuel injector 5 is not installed, the transverse oil inlet hole 706 is in a connected state with the upper mounting hole 707. The oil outlet end of the oil inlet pipe is inserted into the transverse oil inlet hole 706, the oil outlet end of the oil inlet pipe is connected to the fuel injector 5, the oil inlet end of the oil inlet pipe is connected to the fuel supply system, and the oil inlet pipe delivers fuel to the fuel injector 5.

[0030] like Figures 1 to 5 As shown, the adapter upper seat 7 includes an upper seat body 701 and a lug 702 and an upper boss 703 disposed on the upper seat body 701, the slider 2 is connected to the lug 702, the lug 702 extends toward the outside of the upper seat body 701, the upper boss 703 extends toward the inside of the upper seat body 701, and the upper boss 703 has a avoidance hole 705 for the oil inlet pipe to pass through. The adapter upper seat 7 also includes a lower boss 704 connected to the upper seat body 701, the lower boss 704 is located between the upper seat body 701 and the adapter lower seat 3, and a transverse oil inlet hole 706 is disposed on the lower boss 704, and the oil inlet pipe passes through the avoidance hole 705 on the upper boss 703 and then is inserted into the transverse oil inlet hole 706.

[0031] As a preferred example, Figures 1 to 5As shown, the number of lugs 702 is the same as the number of sliders 2, and each slider 2 is fixedly connected to a lug 702 by a bolt. The upper seat body 701 is a disc-shaped component, and all lugs 702 extend toward the outer side of the upper seat body 701 along the radial direction of the upper seat body 701. The lugs 702 are fixedly connected to the upper seat body 701, and the slider 2 is located on the outer side of the upper seat body 701, and the slider 2 is located below the lugs 702, and the lugs 702 are located above the lower seat 3 of the adapter. An upper boss 703 is provided, and the upper boss 703 and one of the lugs 702 are on the same radial line of the upper seat body 701. The upper boss 703 is fixedly connected to the inner circular surface of the upper seat body 701. The upper boss 703 extends from the inner circular surface of the upper seat body 701 toward a position close to the center of the upper seat body 701. The length of the upper boss 703 is smaller than the radius of the upper seat body 701. The avoidance hole 705 is a through hole penetrated through the upper boss 703 along the thickness direction of the upper boss 703. The size of the avoidance hole 705 is larger than the diameter of the oil inlet pipe, leaving enough space for the oil inlet pipe to facilitate the extension of the oil inlet pipe and installation in the lateral oil inlet hole 706 of the lower boss 704. The thickness direction of the upper boss 703 is parallel to the axis of the upper seat body 701 (that is, the axis of the adapter upper seat 7), the lower boss 704 is fixedly connected to the bottom surface of the upper seat body 701, the lower boss 704 is located at the center of the upper seat body 701, and the upper mounting hole 707 extends from the center of the upper seat body 701 to the bottom surface of the lower boss 704, and the bottom surface of the lower boss 704 is in contact with the adapter lower seat 3.

[0032] like Figures 1 to 6 As shown, the slider 2 is an L-shaped structure. In this embodiment, there are four sliders 2, each of which has two threaded holes. The slider 2 is connected to the adapter upper seat 7 by bolts, so that the injector 5, the adapter upper seat 7 and the slider 2 are connected as a whole. The part extending from the bottom of the slider 2 is 10 mm in height, which is just embedded in the slide groove 305 of the adapter lower seat 3 and matched with the lower end surface of the adapter lower seat 3. After the slider 2 is connected to the adapter upper seat 7, a U-shaped groove will be formed. When this part is installed on the adapter lower seat 3, the U-shaped groove just matches the upper end of the adapter lower seat 3. Through this assembly connection method, the slider 2 and the adapter upper seat 7 can slide arbitrarily in the circumferential direction of the adapter lower seat 3.

[0033] like Figures 1 to 5As shown, the injector adapter device for the constant volume combustion bomb of the present invention also includes a locking block 4 connected to the adapter upper seat 7 and used to fix the oil inlet pipe on the adapter upper seat 7. The locking block 4 is connected to the lower boss 704, and a limiting protrusion is provided on the locking block 4 to be inserted into the transverse oil inlet hole 706 and to apply a clamping force along the axial direction to the oil inlet pipe. A through hole for the oil inlet pipe to pass through is provided at the center of the locking block 4, and the limiting protrusion is a circular ring structure, and the center hole of the limiting protrusion is connected with the transverse oil inlet hole 706 and the through hole provided at the center of the locking block 4, and the three are coaxial. The limiting protrusion is inserted into the transverse oil inlet hole 706, and the limiting protrusion abuts against one end face of the oil inlet pipe, and the oil inlet pipe is pressed and fixed in the oil inlet hole, ensuring that the oil inlet pipe is firmly fixed to avoid fuel leakage.

[0034] Preferably, the locking block 4 is connected to the lower boss 704 by bolts. The locking block 4 is a rectangular block structure. Four threaded holes with a diameter of 6 mm are provided at the four right angles of the locking block 4. The locking block 4 and the adapter upper seat 7 are bolted together through the threaded holes here.

[0035] like Figures 1 to 3 and Figure 6 As shown, the adapter upper seat 7 and the adapter lower seat 3 are located in the inner cavity of the upper end cover 1 of the constant volume incendiary bomb, the adapter lower seat 3 is a disc-shaped component, and a receiving cavity for accommodating the lower boss 704 is arranged at the inner center of the adapter lower seat 3, the receiving cavity is a circular cavity and the receiving cavity forms a circular opening on the top surface of the adapter lower seat 3, the diameter of the receiving cavity is greater than the diameter of the lower boss 704, the slide groove 305 is a groove arranged on the inner circular surface of the receiving cavity, and the slider 2 and the slide groove 305 are clearance-matched. By changing the position of the slider 2 in the slide groove 305, the spray angle of the injector 5 is changed. The adapter lower seat 3 is connected to the constant volume incendiary bomb by bolts, and a bolt hole 302 for the bolt to pass through is arranged on the adapter lower seat 3, and a plurality of bolt holes 302 are arranged and all the bolt holes 302 are distributed around the outer side of the lower mounting hole 301, and the adapter lower seat 3 is fixed to the upper end cover 1 of the constant volume incendiary bomb by bolt connection.

[0036] The injector adapter device is integrally arranged in the inner cavity of the upper end cover 1 of the constant volume combustion bomb. The inner cavity of the upper end cover 1 is a circular cavity. A through hole for the injector 5 to pass through is arranged at the center of the upper end cover 1. The adapter lower seat 3 and the adapter upper seat 7 are coaxially arranged with the upper end cover 1. A cooling cavity with a certain volume is formed between the adapter lower seat 3 and the upper end cover 1 of the constant volume combustion bomb. This cooling cavity serves as a coolant channel. Coolant can be introduced into the cooling cavity to cool the injector 5. A water inlet hole 303 and a water outlet hole 304 are provided on the adapter lower seat 3, and the water inlet hole 303 and the water outlet hole 304 are connected to the cooling cavity. The first cooling water pipe passes through the adapter upper seat 7 at the water inlet hole 303 and is connected to the external water supply system. The second cooling water pipe passes through the adapter upper seat 7 at the water outlet hole 304 and is connected to the external water supply system. The first cooling water pipe transports the coolant to the cooling cavity, and the coolant in the cooling cavity is discharged through the second cooling water pipe to form a cooling water circulation system, which continuously provides coolant to the cooling cavity for cooling the injector 5 in working state during the test.

[0037] Preferably, the adapter upper seat 7, the slider 2, the locking block 4 and the adapter lower seat 3 are all made of No. 45 steel.

[0038] During installation, first install the protruding parts of the lower ends of the four sliders 2 into the slide groove 305 of the adapter lower seat 3. The slider 2 can slide arbitrarily in the groove along the circumferential direction. Then install the injector 5 in the adapter upper seat 7, clamp the injector 5 with one end of the clamp block 6, and fix the other end of the clamp block 6 to the adapter upper seat 7 by bolts. Then, after the oil inlet pipe passes through the avoidance hole 705 on the adapter upper seat 7 and the center hole of the locking block 4, it extends into the transverse oil inlet hole 706 on the side of the adapter upper seat 7, and inserts the limiting protrusion of the locking block 4 into the transverse oil inlet hole 706, so that the end face of the locking block 4 fits with the end face of the transverse oil inlet hole 706. Tighten the four bolts on the locking block 4 to fix the oil inlet pipe. Connect and fix the slider 2 to the adapter upper seat 7 by bolts. At this time, the injector 5, the adapter upper seat 7 and the slider 2 have been assembled into one body and can move circumferentially in the groove of the adapter lower seat 3. According to the spray angle of the fuel injector 5 to be observed, the adapter upper seat 7 is rotated and the four slide blocks 2 are moved to appropriate positions so that the spray angle of the fuel injector 5 meets the test requirements.

[0039] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A fuel injector adapter for a constant volume incendiary bomb, characterized in that: The adapter comprises an adapter lower seat, an adapter upper seat for mounting the fuel injector, and a slider connected to the adapter upper seat. The adapter lower seat has a slide groove for inserting the slider, and the slide groove extends along the entire circumference of the adapter upper seat. A plurality of sliders are provided. The adapter upper seat is rotatable relative to the adapter lower seat, and when the adapter upper seat rotates relative to the adapter lower seat, the fuel injector is driven to rotate synchronously. The injector is arranged at the center of the upper seat of the adapter, the lower seat of the adapter has a lower mounting hole for the injector to pass through, the upper seat of the adapter has an upper mounting hole for the injector to pass through, the upper mounting hole and the lower mounting hole are connected and the two are coaxially arranged; the upper mounting hole is a circular hole arranged at the center of the upper seat of the adapter, the lower mounting hole is a circular hole arranged at the center of the upper seat of the adapter, and the injector passes through the upper mounting hole and the lower mounting hole; the slide groove is an annular groove extending along the entire circumference of the lower seat of the adapter inside, one end of the slider is located in the slide groove, and the other end of the slider is fixedly connected to the upper seat of the adapter; The fuel injector adopts a transverse oil inlet structure, the axis of the fuel inlet hole of the fuel injector is perpendicular to the axis of the fuel injector, and the fuel inlet hole of the fuel injector forms an opening on the outer circumferential surface of the fuel injector; the adapter upper seat and the adapter lower seat and the fuel injector are coaxially arranged, and the rotation center line of the adapter upper seat when rotating is also its axis; The adapter upper seat can rotate 360° relative to the adapter lower seat. When the adapter upper seat rotates relative to the adapter lower seat, the adapter upper seat can drive the injector to rotate synchronously, and the slider slides along the slide groove, so that the spray angle of the injector can be adjusted arbitrarily, and the spray conditions of the injector at different angles can be observed; The upper seat of the adapter has a transverse oil inlet hole for accommodating an oil inlet pipe, the oil inlet pipe is connected to the fuel injector, the axis of the transverse oil inlet hole is perpendicular to the axis of the fuel injector, and the axis of the transverse oil inlet hole is also perpendicular to the axis of the upper mounting hole; when the fuel injector is not installed, the transverse oil inlet hole is in a connected state with the upper mounting hole; the oil outlet end of the oil inlet pipe is inserted into the transverse oil inlet hole, the oil outlet end of the oil inlet pipe is connected to the fuel injector, the oil inlet end of the oil inlet pipe is connected to the fuel supply system, and the oil inlet pipe delivers fuel to the fuel injector; The adapter upper seat comprises an upper seat body and a lower boss connected to the upper seat body, the lower boss is located between the upper seat body and the adapter lower seat, the transverse oil inlet hole is arranged on the lower boss, and the oil inlet pipe passes through the avoidance hole on the upper boss and then is inserted into the transverse oil inlet hole; The injector adapter device for the constant volume incendiary bomb also includes a locking block connected to the upper seat of the adapter and used to fix the oil inlet pipe on the upper seat of the adapter; the locking block is connected to the lower boss, and a limiting protrusion is provided on the locking block to be inserted into the transverse oil inlet hole and apply a pressing force to the oil inlet pipe in the axial direction, and a through hole for the oil inlet pipe to pass through is provided at the center of the locking block, and the limiting protrusion is a circular ring structure, and the center hole of the limiting protrusion is connected with the transverse oil inlet hole and the through hole provided at the center of the locking block, and the three are coaxial; The limiting protrusion is inserted into the transverse oil inlet hole, and the limiting protrusion abuts against one end surface of the oil inlet pipe to press and fix the oil inlet pipe in the oil inlet hole.

2. The injector adapter device for a constant volume combustion bomb according to claim 1, characterized in that: The slider is fixedly connected to the adapter upper seat, and all the sliders are evenly distributed along the circumferential direction on the adapter upper seat.

3. The injector adapter device for a constant volume combustion bomb according to claim 1 or 2, characterized in that: The adapter lower seat has a lower mounting hole for the fuel injector to pass through, and the adapter upper seat has an upper mounting hole for the fuel injector to pass through. The upper mounting hole and the lower mounting hole are connected and coaxially arranged.

4. The injector adapter device for a constant volume combustion bomb according to any one of claims 1 to 3, characterized in that: The adapter upper seat is provided with a clamping block for clamping the fuel injector.

5. The fuel injector adapter device for a constant volume combustion bomb according to any one of claims 1 to 4, characterized in that: The adapter upper seat has a transverse oil inlet hole for accommodating an oil inlet pipe, the oil inlet pipe is connected to the fuel injector, and the axis of the transverse oil inlet hole is perpendicular to the axis of the fuel injector.

6. The injector adapter device for a constant volume combustion bomb according to claim 5, characterized in that: The adapter upper seat includes an upper seat body and a lug and an upper boss arranged on the upper seat body. The slider is connected to the lug, the lug extends toward the outside of the upper seat body, the upper boss extends toward the inside of the upper seat body, and the upper boss has an avoidance hole for the oil inlet pipe to pass through.

7. The injector adapter device for a constant volume combustion bomb according to claim 6, characterized in that: The adapter upper seat also includes a lower boss connected to the upper seat body, the lower boss is located between the upper seat body and the adapter lower seat, the transverse oil inlet hole is arranged on the lower boss, and the oil inlet pipe passes through the avoidance hole on the upper boss and then is inserted into the transverse oil inlet hole.

8. The injector adapter device for a constant volume combustion bomb according to claim 6 or 7, characterized in that: It also includes a locking block connected to the adapter upper seat and used to fix the oil inlet pipe on the adapter upper seat.

9. The injector adapter device for a constant volume combustion bomb according to claim 8, characterized in that: The locking block is connected to the lower boss, and a limiting protrusion is provided on the locking block, which is inserted into the transverse oil inlet hole and applies an axial pressing force to the oil inlet pipe, and the limiting protrusion is a circular ring structure.

10. The injector adapter device for a constant volume combustion bomb according to any one of claims 1 to 9, characterized in that: The adapter lower seat is connected to the constant volume incendiary bomb through bolts, and the adapter upper seat and the adapter lower seat are located in the inner cavity of the upper end cover of the constant volume incendiary bomb.

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