Glass compartment device and engine

Abstract

The utility model provides a glass compartment device. The glass compartment device comprises an electric ignition tube, a supporting piece, a glass plate, a fixing ring, a fastening piece and a heat-proof layer. Wherein the glass plate is installed on the supporting piece through the fixing ring and the fastening piece, and a heat-proof layer is arranged on the surface of the side, away from the supporting piece, of the glass plate; a center mounting hole is formed in the axial center of the supporting piece, and the electric ignition tube is mounted at the center mounting hole on the side, away from the glass plate, of the supporting piece. The utility model further provides an engine. The glass compartment device meets the requirements that the forward pressure bearing intensity is high, and the glass compartment device can be automatically broken and opened in the reverse direction, meanwhile, the glass compartment device is good in heat insulation effect and reliable in sealing, and the solid engine can well and successfully achieve the intermittent working function.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid rocket engine technical field, specifically, relate to a glass cabin device and engine. BACKGROUND

[0002] Solid pulse engine is actually divided into multiple parts by the combustion chamber of solid engine with isolation device, and can be shut down and started multiple times. The aircraft uses solid pulse engine as power device, can reasonably distribute each stage pulse thrust and pulse interval time through the control program on the aircraft, realizes the optimal control of flight orbit and the optimal management of engine energy, thereby comprehensively improves the performance of various aircrafts.

[0003] The isolation device is an important component of the solid pulse engine. When the previous pulse works, the isolation device completely isolates the adjacent two-stage pulse combustion chamber. The isolation device plays a role of heat insulation, sealing and force bearing, and ensures that the main charge of the next pulse combustion chamber is not ignited. When the next pulse works, the isolation device is smoothly opened and no harmful debris is generated, thereby effectively realizing the function of intermittent work of the engine pulse.

[0004] With the continuous development of aircraft technology, the performance of aircraft is continuously improved. The solid pulse engine is a kind of way to effectively realize the energy management of the solid engine. The performance of the aircraft using the solid pulse engine is excellent, so the demand for the solid pulse engine is particularly urgent. The development of the isolation device as the core component of the solid pulse engine is particularly critical.

[0005] The isolation device is divided into cabin type and layer type. Due to the harsh and special working conditions of the cabin device, various performance requirements are high. It not only needs to withstand the high pressure of the previous pulse in the positive direction, but also needs to ensure that the low pressure can be reliably opened in the reverse direction (working of the next pulse). At the same time, no debris can fly out when opening to avoid affecting the safety of the engine work. At the same time, the structure needs to be light in quality, the heat insulation effect needs to be good, and the sealing needs to be reliable. Therefore, a cabin device with the above characteristics must be developed to well realize the function of intermittent pulse work to meet the urgent needs of many aircrafts. CONTENT OF THE UTILITY MODEL

[0006] In the first aspect of the utility model, a glass cabin device is provided, which comprises an electric ignition tube, a support, a glass plate, a fixing ring, a fastener and a heatproof layer.

[0007] The glass plate is installed on the support through the fixing ring and the fastener, and the side surface of the glass plate away from the support is provided with the heatproof layer.

[0008] The support has a center installation hole at the axial center, and the electric ignition tube is installed at the center installation hole on the side of the support away from the glass plate.

[0009] Optionally, the heatproof layer is bonded to the side surface of the glass plate away from the support.

[0010] Optionally, a plurality of weakening grooves are provided on the side surface of the glass plate away from the support; wherein a single weakening groove is an annular groove formed on the side surface of the glass plate away from the support, and the plurality of weakening grooves are nested; and the cross-sectional shape of the single weakening groove is V-shaped.

[0011] Optionally, the side of the glass plate adjacent to the support is recessed toward the side away from the support, forming an inner concave structure.

[0012] The side of the support adjacent to the glass plate forms an outer convex structure matching the inner concave structure.

[0013] Optionally, the side surface of the recessed part of the inner concave structure is provided with a first special-shaped structure comprising a chamfer and a round corner at the part matched with the support;

[0014] The side surface of the convex part of the outer convex structure is provided with a second special-shaped structure comprising a step and a round corner at the part matched with the inner concave structure, matching the first special-shaped structure.

[0015] Optionally, the radially outer side of the support is further provided with a stepped notch groove adjacent to the outer convex structure, and a first sealing member is arranged between the non-recessed part of the inner concave structure and the stepped notch groove, thereby forming a seal between the glass plate and the support.

[0016] Optionally, a plurality of air holes are provided on the support,

[0017] wherein the flow passage cross-sectional shape of a single air hole is sector-shaped, and the plurality of air holes are arranged in a radial, multi-layer nested manner;

[0018] and wherein the plurality of air holes are configured such that the air passage area of the support accounts for more than 45% of the total cross-sectional area of the support.

[0019] Optionally, the radial side of the support is provided with a first mounting hole in the radial direction;

[0020] The fixing ring comprises a first ring part parallel to the side surface of the glass plate away from the support, and a second ring part extending from the first ring part toward the side of the support, and the second ring part is provided with a second mounting hole in the radial direction;

[0021] The fastener passes through the second mounting hole and the first mounting hole.

[0022] Optionally, the material of the support is aluminum alloy LY12;

[0023] The materials of the fixing ring and the fastener are 30CrMnSiA steel.

[0024] The heat protection layer is a rubber material layer or an aerogel material layer.

[0025] In the second aspect of the utility model, a kind of engine is provided, and the engine comprises:

[0026] The aforementioned glass cabin device;

[0027] First pulse shell, first step is provided on the first pulse shell;And

[0028] Second pulse shell, second step is provided on the second pulse shell;

[0029] Wherein, glass cabin device is clamped between first step and second step in axial direction.

[0030] The glass cabin device of the utility model is set to include: electric igniter, support, glass plate, fixed ring, fastener and heat protection layer, wherein, glass plate is installed on support by fixed ring and fastener, and the side surface of glass plate away from support is provided with heat protection layer, electric igniter is installed at center mounting hole on the side of support away from glass plate, by the split combination design of support+glass plate+heat protection layer heat protection structure, so that glass cabin device meets the requirement that high positive pressure is borne and can be opened by reverse autonomous crushing, with good heat insulation effect and reliable sealing, can be good to make solid engine successfully realize the function of intermittent (i.e. pulse) work.

[0031] The engine of the utility model can effectively realize energy management of solid engine by using glass cabin device, and adapt to higher adaptability requirements.

[0032] The above and other objects, advantages and features of the present utility model will become more apparent from the following detailed description of the preferred embodiments thereof, given by way of example only, in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] Features, advantages and example embodiments of the present utility model will be described below with reference to the accompanying drawings, in which like reference numerals indicate like elements, and wherein:

[0034] Figure 1 It is the structure schematic view of the glass cabin device of the utility model embodiment, wherein, Figure 1 (a) is a sectional view, Figure 1 (b) is the view when observing from the direction (C) of installing electric igniter, Figure 1 (c) is the view when observing from the side (B) of heat protection layer.

[0035] Figure 2 It is Figure 1(a) is a partially enlarged schematic diagram.

[0036] Figure 3 It has Figure 1 A partial structural diagram of the engine of the glass compartment device shown.

[0037] Figure 4 yes Figure 1 The schematic diagram of the glass panel structure of the glass compartment device shown is provided. Figure 4 (a) is a view taken from the side of the glass plate away from the support. Figure 4 (b) is along Figure 4 (a) Sectional view of line AA. Figure 4 (c) and Figure 4 (d) is Figure 4 (b) Enlarged schematic diagram of different parts.

[0038] Figure 5 yes Figure 1 The schematic diagram of the support structure of the glass compartment device shown is provided. Figure 5 (a) is a view taken from the side of the support away from the glass plate. Figure 5 (b) is along Figure 5 (a) is a cross-sectional view of line DD.

[0039] In the figure, the attached figures are labeled as follows:

[0040] 9-Glass compartment device, 1-Electric ignition tube, 2-Support member, 21-Step notch groove, 22-Central mounting hole, 23-First mounting hole, 24-Ventilation hole, 25-Sealing groove, 26-Externally convex structure, 27-Step side, 3-Glass plate, 31-Weakening groove, 32-Non-recessed part, 301-Planar structure, 302-Inner concave structure, 303-First irregular structure, 331-Chamfer, 332-Rounded corner, 4-Heatproof layer, 5-Fastener, 6-First seal, 7-Fixing ring, 71-First ring portion, 72-Second ring portion, 73-Second mounting hole, 8-First pulse housing, 81-First step, 10-Second seal, 11-Second pulse housing, 111-Second step, 12-First pulse combustion chamber, 13-Second pulse combustion chamber. Detailed Implementation

[0041] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means a limitation of the present invention or its applications or uses. Furthermore, the dimensions and proportions of the components in the drawings are merely schematic and do not strictly correspond to actual products.

[0042] This utility model provides a glass compartment device, such as Figure 1As shown, the glass compartment device 9 includes: an electric ignition tube 1, a support member 2, a glass plate 3, a fixing ring 7, fasteners 5, and a heat-insulating layer 4; wherein, the glass plate 3 is mounted on the support member 2 by the fixing ring 7 and the fasteners 5, and the heat-insulating layer 4 is provided on the side of the glass plate 3 away from the support member 2; the support member 2 has a central mounting hole 22 at its axial center, and the electric ignition tube 1 is mounted at the central mounting hole 22 on the side of the support member 2 away from the glass plate 3.

[0043] The glass compartment device 9 of this utility model embodiment is configured to include an electric ignition tube 1, a support member 2, a glass plate 3, a fixing ring 7, fasteners 5, and a heat-insulating layer 4. The glass plate 3 is mounted on the support member 2 via the fixing ring 7 and fasteners 5, and the heat-insulating layer 4 is provided on the surface of the glass plate 3 away from the support member 2. The electric ignition tube 1 is installed at the central mounting hole 22 on the side of the support member 2 away from the glass plate 3. Through the separate combination design of the support member 2, glass plate 3, and heat-insulating layer 4, the glass compartment device 9 is broken by the impact generated by the pyrotechnic device—i.e., the electric ignition tube 1. This allows the glass compartment device 9 to meet the requirements of high forward pressure resistance and the ability to open autonomously in the reverse direction. It also provides good heat insulation and reliable sealing, enabling the solid rocket motor to successfully achieve intermittent (i.e., pulsed) operation. The glass compartment device 9 has a forward pressure resistance greater than 25.0 MPa, opens autonomously in the reverse direction, and has a mass of no more than 0.5 kg.

[0044] This utility model also provides an engine, such as Figure 3 As shown, the engine (not labeled in the figure) includes: the aforementioned glass compartment device 9, a first pulse housing 8, and a second pulse housing 11; a first step 81 is provided on the first pulse housing 8, and a second step 111 is provided on the second pulse housing 11; wherein, the glass compartment device 9 is sandwiched between the first step 81 and the second step 111 in the axial direction. The engine of this embodiment of the invention, by using the glass compartment device 9, can effectively realize energy management of the solid rocket motor and adapt to higher performance requirements. The engine of this embodiment of the invention can be a solid rocket dual-pulse engine or a multi-pulse engine.

[0045] The composition of the glass compartment device 9 and the engine, etc., of this utility model embodiment will be described in more detail below with reference to the accompanying drawings.

[0046] In some embodiments of the present invention, in the glass compartment device 9, the heat-insulating layer 4 is bonded to the surface of the glass plate 3 away from the support member 2. By bonding the heat-insulating layer 4 to the glass plate 3, a quick and stable connection between the heat-insulating layer 4 and the glass plate 3 can be achieved.

[0047] like Figure 2 and Figure 4As shown, in some embodiments, a plurality of weakening grooves 31 are provided on the side surface of the glass plate 3 away from the support member 2; wherein, a single weakening groove 31 is an annular groove formed on the side surface of the glass plate 3 away from the support member 2, and the plurality of weakening grooves 31 are nested together; the cross-sectional shape of a single weakening groove 31 is V-shaped. Specifically, the opening of the V-shape faces the side away from the support member 2.

[0048] like Figure 4 As shown in (a), the glass plate 3 has a circular structure. In the axial direction, one side is a generally flat planar structure 301 with a weakening groove 31, and the other side is a concave structure 302. Specifically, the side of the glass plate 3 adjacent to the support member 2 is recessed in a direction away from the support member 2 to form the concave structure 302.

[0049] To ensure that the glass compartment device 9 can withstand the high pressure of the first pulse (also known as the preceding pulse), the minimum effective thickness of the glass plate 3 must be guaranteed. Simultaneously, the glass compartment device 9 must be able to open smoothly before the second pulse (also known as the subsequent pulse) without generating fragments. In this embodiment, multiple weakening grooves 31 are provided on the surface of the glass plate 3 away from the support member 2 (also known as the surface near the first pulse combustion chamber 12, i.e., the generally flat planar structure 301). Each weakening groove 31 has a V-shaped cross-section and is an annular groove formed on the glass plate 3. Thus, the multiple weakening grooves 31 collectively form multiple nested annular structures. For example, in... Figure 4 In (a), the weakening grooves 31 of the glass plate 3 form seven rings radiating outwards. When the high-pressure gas generated by the electric ignition tube 1 momentarily and locally acts on the concave structure 302 of the glass plate 3, the glass plate 3 breaks open smoothly along the weakening grooves 31. The fragments dissolve without causing harm, thus ensuring both the positive pressure bearing capacity of the glass plate 3 and the active opening of the glass compartment device 9. The specific thickness of the glass plate 3 and the specific depth of the weakening grooves 31 can be set according to actual application needs and are not limited here.

[0050] like Figure 4 As shown in (d), the cross-section of the weakening groove 31 is V-shaped. Specifically, the size and shape of the weakening groove 31 can be designed according to the requirements to ensure that a high stress concentration is generated locally under the action of the electric ignition tube 1, so as to achieve breakage and achieve autonomous opening.

[0051] The generally flat planar structure 301 of the glass plate 3 with the weakening groove 31 is used to bond the heat-insulating layer 4. Figure 1 This is a schematic diagram of the structure of the glass compartment device 9 according to an embodiment of the present invention, wherein, Figure 1 (a) is a sectional view. Figure 1(c) is a view taken from the side (B) of the heat insulation layer 4, which is also a view taken from the side of the glass plate 3 away from the support member 2. It can be seen that after the heat insulation layer 4 is bonded to the glass plate 3, the generally flat planar structure 301 with the weakening groove 31 is formed into a plane.

[0052] The concave structure 302 of the glass plate 3 is used to mate with the support member 2. (Reference) Figure 3 and Figure 4 The side of the glass plate 3 adjacent to the support member 2 is recessed in a direction away from the support member 2, forming a concave structure 302. (Reference) Figure 3 and Figure 5 The support member 2 has a convex structure 26 on one side adjacent to the glass plate 3, which is adapted to the concave structure 302. By setting the glass plate 3 and the support member 2 with the concave structure 302 and the convex structure 26 respectively, the two can be tightly fitted, further ensuring the structural stability of the compartment device.

[0053] like Figure 5 As shown, the support member 2 is a generally cylindrical flat plate structure with a hollow structure, and a central mounting hole 22 for mounting the electric ignition tube 1 is provided at its axial center. One side of the support member 2 is a generally flat structure with a slightly raised center away from the glass plate 3, and the other side is an outwardly convex structure 26 with a partially raised center. This can improve the load-bearing capacity of the support member 2 and ensure that the support member 2 does not suffer structural damage when subjected to the first pulse high voltage.

[0054] Continue to refer to Figure 3 and Figure 4 The concave portion of the concave structure 302 has a first irregular structure 303, including a chamfer 331 and a rounded corner 332, on its side where it mates with the support member 2; correspondingly, the convex portion of the convex structure 26 has a second irregular structure (not labeled in the figure) at a corresponding position, which is adapted to the first irregular structure 303 and includes a step and a rounded corner. Figure 4 As shown in (b), the radial side of the recessed portion of the concave structure 302 of the glass plate 3 is provided with a first irregular structure 303, including a partial chamfer 331 and a rounded corner 332, at the part where it mates with the support member 2. This prevents local stress concentration in the glass plate 3 structure itself and prevents excessive local contact stress during installation of the glass plate 3 and the support member 2, which could affect its ability to withstand the first pulse high voltage. The radial side of the protruding portion of the convex structure 26 of the support member 2 is provided with a second irregular structure, including a step and a rounded corner, for mates with the glass plate 3, thereby ensuring smooth assembly and sealing of the glass plate 3 and the support member 2.

[0055] In the glass compartment device 9 of this embodiment, the glass plate 3 and the support member 2 are sealed by a first sealing member 6. The first sealing member 6 can be a sealing ring or a sealing gasket. In some embodiments, a stepped notch 21 is also formed on the radially outer side of the support member 2 adjacent to the convex structure 26, and the first sealing member 6 is provided between the non-recessed portion 32 of the concave structure 302 and the stepped notch 21, thereby forming a seal between the glass plate 3 and the support member 2. When the first pulse is working, the high-temperature and high-pressure gas acts on the heat-insulating layer 4. By having the glass plate 3 supported by the support member 2 and installing the first sealing member 6 between the stepped notch 21 of the support member 2 and the glass plate 3, the gas working in the first pulse is isolated from the second pulse. At the same time, by setting the heat-insulating layer 4 to protect the glass plate 3 from heat, the structure is prevented from failing due to heat, thus achieving complete isolation between the first pulse and the second pulse.

[0056] In addition, such as Figure 5 As shown, a sealing groove 25 may also be provided on the radial side of the support member 2. Typically, the radial side of the portion of the support member 2 that does not form the convex structure 26 is provided with the sealing groove 25. When the glass compartment device 9 is installed in the engine, the radial side of the portion of the support member 2 that does not form the convex structure 26 is in contact with the second pulse housing 11, and a second seal 10 is provided in the sealing groove 25, such as... Figure 3 As shown, this ensures the assembly and sealing between the support 2 and the pulse housing, as well as the isolation of the two-stage pulses. The second seal 10 can be a sealing ring or a sealing gasket.

[0057] like Figure 1 and Figure 5 As shown, in the glass compartment device 9 of this embodiment, the support member 2 is further provided with multiple vent holes 24. The cross-sectional shape of a single vent hole 24 is fan-shaped, and the multiple vent holes 24 are arranged radially and in multiple nested layers. The multiple vent holes 24 are configured such that the ventilation area of ​​the support member 2 accounts for more than 45% of the total cross-sectional area of ​​the support member 2. This ensures that the second pulse combustion gas of the pulse engine can pass smoothly through the glass compartment device 9. The ventilation area of ​​the support member 2 accounts for, for example, 46%, 48%, and 50% of the total cross-sectional area of ​​the support member 2.

[0058] Figure 1(b) is a view taken from the direction of the electric ignition tube 1 (direction C), which is also a view taken from the side of the support member 2 away from the glass plate 3. The electric ignition tube 1 is installed in the central mounting hole 22 of the support member 2. It can be seen that the support member 2 has multiple layers of vent holes 24 arranged radially from the inside to the outside. The first layer has 4 vent holes 24, the second layer has 16 vent holes 24, and the third layer has 16 vent holes 24. The individual ventilation area of ​​the vent holes 24 in the third layer is larger than that in the second layer. The cross-sectional shape of the flow channel of each vent hole 24 is fan-shaped.

[0059] Continue to refer to Figure 2 The support member 2 also has a first mounting hole 23 in the radial direction on its radial side; the retaining ring 7 includes a first ring portion 71 parallel to the surface of the glass plate 3 away from the support member 2, and a second ring portion 72 extending from the first ring portion 71 toward the support member 2, the second ring portion 72 having a second mounting hole 73 in the radial direction; the fastener 5 passes through the second mounting hole 73 and the first mounting hole 23. The mounting hole can be a threaded hole, and the fastener 5 can be a pin. Figure 5 As shown, typically, the radial side of the support member 2 is provided with 12 first mounting holes 23 with a diameter of 3mm, evenly arranged circumferentially. Optionally, the number of first mounting holes 23 can be 4, 6, 8, 10, 14, etc. In this way, by installing the fixing ring 7 with the support member 2, the positioning of the support member 2 and the glass plate 3 with the heat-insulating layer 4 bonded together is finally achieved.

[0060] The glass compartment device 9 of this embodiment is designed as a split structure. The glass plate 3 with the heat-insulating layer 4 is fixed to the support member 2 by the fixing ring 7 and fasteners 5, and the two are sealed by the first sealing member 6 to form an integral structure. When the first pulse is working, the support member 2 provides load-bearing capacity, achieving complete isolation between the two pulses. When the second pulse is working, the electric ignition tube 1 is energized and works to generate instantaneous high-pressure gas that acts on a local part of the glass compartment device 9, causing the glass plate 3 to break along the weakening groove 31, thus realizing the active opening of the glass compartment device 9. When the second pulse is working, the gas flows through the support member 2, through the broken glass plate 3, and is discharged backward. At the same time, under the action of the gas in the second pulse, the broken glass will melt, thereby ensuring that the glass compartment device 9 opens actively without producing fragments. By adopting a split structure design, the forming difficulty is reduced, the product reliability is improved, and the normal functioning of the glass compartment device 9 is guaranteed.

[0061] The following provides an exemplary description of the materials, dimensions, and manufacturing processes of each component of the glass compartment device 9.

[0062] The electric ignition tube 1 is used to break glass plates 3 with weakening grooves 31. It is a standard product with specifications of M6×15mm, a charge of 100mg, a resistance of 0.8Ω-1.1Ω, a burst pressure of 12MPa in 27ml, stable performance, low price, and high reliability.

[0063] Support component 2 can be made of materials such as aluminum alloy LY12, and formed by machining. Aluminum alloy LY12 has high density, high strength, and good processability, which can effectively reduce the negative weight of the component.

[0064] Glass plate 3 can be obtained by blowing and tempering glass material. Glass plate 3 has high strength, good compressive strength, is easily broken under instantaneous high-pressure local impact, and has a low melting point. Typically, the shear strength of glass plate 3 is greater than 120MPa, the melting point is not lower than 500℃, and it has good breaking effect under local impact. With the addition of multiple annular weakening grooves 31, the broken particle size is no larger than 3mm×3mm. At the same time, the low melting point of the glass material allows the glass to melt and be discharged with the gas, achieving a better performance without harmful flying particles, and thus well meeting the structural and functional requirements.

[0065] The fixing parts of the glass plate 3, including the fixing ring 7 and the fastener 5, can be made of 30CrMnSiA steel and formed by machining. 30CrMnSiA steel has high strength, good processability, and low price, which can meet the strength requirements.

[0066] The heat-insulating layer 4 is a rubber or aerogel material layer, formed by an independent atmospheric pressure drying mold. It is then bonded to the glass plate 3. The material of this heat-insulating layer 4 has excellent thermal insulation properties and a low density, which further reduces negative mass and ensures that the propellant loading and ignition of the second pulse are not ignited during the first pulse operation, preventing structural damage to the glass compartment device 9 due to thermal runaway. Preferably, the heat-insulating layer 4 is an aerogel material layer with a density of 0.3 g / cm³. 3 It has a thermal conductivity of 0.025 W / m·K, a specific heat capacity of 1.4 J / g·K, stable performance, convenient preparation, and good economic efficiency.

[0067] The first seal 6 and the second seal 10 can be obtained by compression molding.

[0068] like Figure 3 As shown, it has Figure 1 The diagram shows a partial structural representation of the engine of the glass compartment device 9. The glass compartment device 9 is installed on the pulse engine (…). Figure 3(Only a portion of the engine is shown in the image.) The glass compartment 9 is positioned in the middle of the corresponding part of the second pulse housing 11. The axial side of the glass compartment 9, with the heat-insulating layer 4, is adjacent to the first pulse combustion chamber 12 of the first pulse, while the axial side of the glass compartment 9, where the electric ignition tube 1 is located, is adjacent to the second pulse combustion chamber 13 of the second pulse. The radial side of the glass compartment 9 is sealed between the first pulse combustion chamber 12 and the second pulse combustion chamber 13 by placing a second seal 10 at the sealing groove 25 of the support member 2 of the glass compartment 9. Furthermore, the first pulse housing 8 has a first step 81, and the second pulse housing 11 has a second step 111. The first step 81 and the second step 111 are arranged opposite each other in the axial direction, and the glass compartment 9 is sandwiched between the first step 81 and the second step 111. In other words, the glass compartment device 9 is axially limited in the axial direction by the first step 81 on the first pulse housing 8 and the second step 111 on the second pulse housing 11. The first step 81 is used to prevent the glass compartment device 9 from moving towards the direction of the first pulse combustion chamber 12 when the second pulse is working, and the second step 111 is used to prevent the glass compartment device 9 from moving towards the direction of the second pulse combustion chamber 13 when the first pulse is working. This achieves complete positioning of the glass compartment device 9 and isolation between the first pulse combustion chamber 12 and the second pulse combustion chamber 13.

[0069] The assembly process of the glass compartment device 9 is described below, with the specific steps as follows:

[0070] The first step is to apply adhesive to the surface of the glass plate 3 with the annularly arranged weakening grooves 31, which is the bonding surface between the heat-insulating layer 4 and the glass plate 3. Then, the heat-insulating layer 4 and the surface of the glass plate 3 with the annularly arranged weakening grooves 31 are bonded together to form a single unit. During the bonding process, if necessary, tooling can be used to apply pressure.

[0071] The second step is to check the integrity of the first seal 6. After the check is completed, place the first seal 6 at the stepped notch 21 of the support 2.

[0072] The third step is to align the glass plate 3 with the heat-insulating layer 4 on one side with the support member 2 along the axial direction of the support member 2. The side of the glass plate 3 with the heat-insulating layer 4 is placed on the outside, and the side of the glass plate 3 without the heat-insulating layer 4 and with the concave structure 302 is attached to the support member 2.

[0073] The fourth step is to confirm the proper placement of the glass plate 3 and the support member 2. Specifically, this can be determined by checking the gap between the radial sides of the glass plate 3 and the support member 2 after installation, or by using an endoscope to observe the gap between the central mounting hole 22 at the center of the support member 2 and the contact surface of the glass plate 3. After confirming the fit, the retaining ring 7 is fitted onto the outer cylindrical surface of the glass plate 3 and the support member 2 along the axial direction of the support member 2. The assembly is considered complete when the end face of the retaining ring 7 contacts and fits against the stepped side 27 of the support member 2.

[0074] Fifth, if necessary, rotate the retaining ring 7 circumferentially to adjust its position. After the second mounting hole 73 on the side of the retaining ring 7 is aligned with the center of the first mounting hole 23 of the support 2, install the fasteners 5 one by one from the side along the circumference until all the fasteners 5 are in place.

[0075] Step 6: Install the electric ignition tube 1 in the center mounting hole 22 of the support 2.

[0076] The assembly of glass compartment device 9 is now complete.

[0077] The glass compartment device of this utility model embodiment can achieve complete isolation between adjacent combustion chambers of the pulse engine, and plays a role in heat insulation and sealing in the pulse engine. It has high pressure resistance when the first pulse is working (forward) and can open autonomously when the second pulse is working (reverse), thus meeting the dual requirements of the pulse engine for its structure and function.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "one example," "some embodiments," or "preferred embodiment," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] The embodiments of this utility model have been described in detail above. However, aspects of this utility model are not limited to the embodiments described above. Various modifications and substitutions can be applied to the above embodiments without departing from the scope of this utility model.

Claims

1. A glazing panel assembly, characterized by The glass cabin device comprises an electric ignition tube, a support, a glass plate, a fixing ring, a fastener and a heatproof layer; The glass plate is installed on the support through the fixing ring and the fastener, and the side surface of the glass plate away from the support is provided with the heatproof layer; The support has a center installation hole at the axial center, and the electric ignition tube is installed at the center installation hole on the side of the support away from the glass plate.

2. The glass cabin device according to claim 1, wherein The heatproof layer is bonded to the side surface of the glass plate away from the support.

3. The glass cabin device according to claim 1, wherein The side surface of the glass plate away from the support is provided with a plurality of weakening grooves; wherein a single weakening groove is an annular groove formed on the side surface of the glass plate away from the support, and the plurality of weakening grooves are nested; and wherein the cross-sectional shape of a single weakening groove is V-shaped.

4. The glass cabin device according to claim 1, wherein The side of the glass plate adjacent to the support is recessed toward the side away from the support, forming an inner concave structure; The side of the support adjacent to the glass plate forms an outer convex structure matched with the inner concave structure.

5. The glass cabin device according to claim 4, wherein The side surface of the recessed part of the inner concave structure is provided with a first special-shaped structure including a chamfer and a round corner at the part matched with the support; The side surface of the convex part of the outer convex structure is provided with a second special-shaped structure matched with the first special-shaped structure including a step and a round corner at the part matched with the inner concave structure.

6. The glass cabin device according to claim 5, wherein The radial outer side of the support is further provided with a stepped notch groove adjacent to the outer convex structure, and a first sealing member is arranged between the non-recessed part of the inner concave structure and the stepped notch groove, thereby forming a seal between the glass plate and the support.

7. The glass cabin device according to claim 1, wherein The support is provided with a plurality of air holes, Wherein the flow passage cross-sectional shape of a single air hole is a sector, and the plurality of air holes are arranged in a radial, multi-layer nested manner; And wherein the plurality of air holes are configured such that the air passage area of the support accounts for more than 45% of the total cross-sectional area of the support.

8. The glass cabin device according to claim 1, wherein The radial side of the support is provided with a first installation hole in the radial direction; The fixing ring comprises a first ring part parallel to the side surface of the glass plate away from the support, and a second ring part extending from the first ring part toward the side of the support, and the second ring part is provided with a second installation hole in the radial direction; The fastener passes through the second installation hole and the first installation hole.

9. The glass cabin device according to claim 1, wherein The material of the support is aluminum alloy LY12; The material of the fixing ring and the fastener is 30CrMnSiA steel; The heat-proof layer is a rubber material layer or an aerogel material layer.

10. An engine characterized by, The engine comprises: The glass bulkhead device according to any one of claims 1-9; A first pulse shell is provided with a first step; and A second pulse shell is provided with a second step; The glass bulkhead device is clamped between the first step and the second step in the axial direction.

Images