High-temperature-resistant nozzle

Abstract

The utility model discloses a high temperature resistant nozzle which comprises a connecting pipe, a liquid supply buffer mechanism is arranged at one end of the connecting pipe, an oil inlet pipe is arranged at the other end of the connecting pipe, a liquid guide buffer mechanism is arranged between the oil inlet pipe and the connecting pipe, one end of the oil inlet pipe is fixedly connected with a processing end, and the other end of the processing end is fixedly connected with a nozzle. Filtering mechanisms are arranged in the nozzle and the processing end, and the oil inlet pipe, the processing end and the nozzle are made of silicon carbide materials. Buffering protection treatment can be carried out during oil supply through the liquid guiding buffering mechanism arranged between the oil inlet pipe and the connecting pipe, oil can be filtered in a multiple mode through the nozzle and the filtering mechanism arranged in the treatment end, silicon carbide can stably work in a high-temperature environment, the high-temperature-resistant performance of ceramic is relatively weak, and the service life of the oil supply device is prolonged. The oil inlet pipe, the processing end and the nozzle are made of silicon carbide materials, so that the high-temperature-resistant effect of the nozzle can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to a high-temperature resistant nozzle. Background Art

[0002] The fuel nozzle belongs to the field of engine technology, including a cavity, an oil valve and a nozzle cap. When the fuel pressure in the oil cavity is higher than a set value, the oil valve opens and the fuel is sprayed out through the nozzle cap. The oil valve is composed of a valve body, a valve seat and a spring. The rear end of the valve seat is connected to the cavity to form an oil cavity. The cavity is provided with an inlet channel to enter the oil cavity. The spring is located in the oil cavity and acts between the valve body and the valve seat to close the oil valve. The front end of the valve seat is connected to the nozzle cap to form a residual volume. The nozzle cap is provided with a spray hole connected to the residual volume. A new type of structural fuel nozzle used in a pulse fuel pump in an electronic fuel injection system. It has the beneficial effects and progress of small size, simple structure, low manufacturing cost and convenient setting of the injection direction.

[0003] For example, the utility model patent with patent number 201710531130.1 discloses a high temperature resistant nozzle, which can effectively clean the fuel and avoid clogging the nozzle by providing a high temperature resistant ceramic filter block. However, it is difficult to ensure the high temperature resistance and buffering effect of the nozzle by only using a single buffer mechanism and a high temperature resistant ceramic filter block. In view of this, a high temperature resistant nozzle is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high temperature resistant nozzle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high temperature resistant nozzle comprises a connecting pipe, one end of which is provided with a liquid supply buffer mechanism, the other end of which is provided with an oil inlet pipe, a liquid guide buffer mechanism is provided between the oil inlet pipe and the connecting pipe, one end of the oil inlet pipe is fixedly connected to a processing end, the other end of the processing end is fixedly connected to a nozzle, a filtering mechanism is provided inside the nozzle and the processing end, and the oil inlet pipe, the processing end and the nozzle are configured to be made of silicon carbide material.

[0007] Preferably, the liquid supply buffer mechanism comprises a first connecting plate and an oil supply pipe, one end of the oil supply pipe is fixedly connected to the connecting pipe, and a plurality of first springs and a first damper are fixedly connected between the first connecting plate and the connecting pipe.

[0008] Preferably, the liquid guiding buffer mechanism includes a second connecting plate and an oil guiding hose, the oil guiding hose is fixedly connected to the inner wall of the connecting pipe, the other end of the oil guiding hose is fixedly connected to a connecting head, the connecting head is threadedly connected to the oil inlet pipe, and a plurality of second springs and second dampers are fixedly connected between the second connecting plate and the connecting pipe.

[0009] Preferably, a silicon carbide gasket is fixedly connected to the outer wall of the second connecting plate.

[0010] Preferably, a third connecting plate is fixedly connected to the outer wall of the oil inlet pipe, a plurality of bolts are threadedly connected to the outer wall of the third connecting plate, and the bolts are threadedly connected to the second connecting plate.

[0011] Preferably, the filtering mechanism comprises a first filter plate and a second filter plate, the first filter plate is located inside the processing end, and the second filter plate is located inside the nozzle.

[0012] Preferably, a plurality of movable grooves are provided on the inner wall of the processing end, a movable block is slidably connected to the inner wall of the movable groove, a third spring and a third damper are fixedly connected between the movable block and the movable groove, the movable block is fixedly connected to the first filter plate, and the second filter plate is fixedly connected to the inner wall of the nozzle.

[0013] The beneficial effects of the utility model are:

[0014] 1. By providing a liquid supply buffer mechanism at one end of the connecting pipe, the nozzle and the external mechanism can have a buffering ability when connected. By providing a liquid guide buffer mechanism between the oil inlet pipe and the connecting pipe, a buffering protection treatment can be performed during oil supply. By providing a filtering mechanism in the nozzle and the processing end, the oil can be filtered multiple times. Silicon carbide can work stably in a high temperature environment, while the high temperature resistance of ceramics is relatively weak. By providing the oil inlet pipe, the processing end and the nozzle with silicon carbide material, the high temperature resistance of the nozzle can be guaranteed.

[0015] 2. The second connecting plate and the third connecting plate are fixed by multiple bolt threads, so that the connection stability between the oil inlet pipe and the connecting pipe can be ensured. The silicon carbide gasket on the outer wall of the second connecting plate can further improve the overall high temperature resistance and connection stability of the nozzle during oil supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the high temperature resistant nozzle proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the side structure of the high temperature resistant nozzle proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the high temperature resistant nozzle proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the partial main structure of the high temperature resistant nozzle proposed by the utility model.

[0020] In the figure: 1 connecting pipe, 2 oil supply pipe, 3 first connecting plate, 4 second connecting plate, 5 bolt, 6 third connecting plate, 7 nozzle, 8 processing end, 9 oil inlet pipe, 10 first spring, 11 first damper, 12 silicon carbide gasket, 13 second spring, 14 second damper, 15 oil guide hose, 16 connector, 17 first filter plate, 18 second filter plate, 19 movable groove, 20 third spring, 21 second damper, 22 movable block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 , a high temperature resistant nozzle comprises a connecting pipe 1, a liquid supply buffer mechanism is arranged at one end of the connecting pipe 1, an oil inlet pipe 9 is arranged at the other end of the connecting pipe 1, a liquid guide buffer mechanism is arranged between the oil inlet pipe 9 and the connecting pipe 1, a processing end 8 is fixedly connected to one end of the oil inlet pipe 9, a nozzle 7 is fixedly connected to the other end of the processing end 8, a filtering mechanism is arranged inside the nozzle 7 and the processing end 8, the oil inlet pipe 9, the processing end 8 and the nozzle 7 are configured to be made of silicon carbide material, and the liquid supply buffer mechanism at one end of the connecting pipe 1 can be provided with a buffering capacity when the nozzle 7 is connected to an external mechanism, and the liquid guide buffer mechanism between the oil inlet pipe 9 and the connecting pipe 1 can be provided to perform a buffering protection treatment during oil supply, and the filtering mechanism inside the nozzle 7 and the processing end 8 can perform multiple filtrations on the oil, and silicon carbide can work stably in a high temperature environment, while the high temperature resistance of ceramics is relatively weak, and the high temperature resistance of the nozzle can be ensured by configuring the oil inlet pipe 9, the processing end 8 and the nozzle 7 to be made of silicon carbide material.

[0023] The liquid supply buffer mechanism includes a first connecting plate 3 and an oil supply pipe 2, one end of the oil supply pipe 2 is fixedly connected to the connecting pipe 1, and a plurality of first springs 10 and a first damper 11 are fixedly connected between the first connecting plate 3 and the connecting pipe 1. By providing the liquid supply buffer mechanism at one end of the connecting pipe 1, the nozzle 7 can have a buffering ability when connected to the external mechanism;

[0024] The liquid-conducting buffer mechanism includes a second connecting plate 4 and an oil-conducting hose 15, the oil-conducting hose 15 is fixedly connected to the inner wall of the connecting pipe 1, the other end of the oil-conducting hose 15 is fixedly connected to a connector 16, the connector 16 is threadedly connected to the oil inlet pipe 9, and a plurality of second springs 13 and a second damper 14 are fixedly connected between the second connecting plate 4 and the connecting pipe 1. By arranging the liquid-conducting buffer mechanism between the oil inlet pipe 9 and the connecting pipe 1, a buffer protection treatment can be performed during oil supply;

[0025] The outer wall of the second connecting plate 4 is fixedly connected with a silicon carbide gasket 12, the outer wall of the oil inlet pipe 9 is fixedly connected with a third connecting plate 6, the outer wall of the third connecting plate 6 is threadedly connected with a plurality of bolts 5, the bolts 5 are threadedly connected with the second connecting plate 4, and the second connecting plate 4 and the third connecting plate 6 are threadedly connected and fixed by a plurality of bolts 5, so that the connection stability between the oil inlet pipe 9 and the connecting pipe 1 can be ensured, and the silicon carbide gasket 12 on the outer wall of the second connecting plate 4 can further improve the overall high temperature resistance and connection stability of the nozzle 7 when supplying oil;

[0026] The filtering mechanism includes a first filter plate 17 and a second filter plate 18, wherein the first filter plate is located inside the processing end, and the second filter plate is located inside the nozzle. By arranging the filtering mechanisms in the nozzle 7 and the processing end 8, the oil can be filtered multiple times;

[0027] A plurality of movable grooves 19 are provided on the inner wall of the processing end 8, and a movable block 22 is slidably connected to the inner wall of the movable groove 19. A third spring 20 and a third damper 21 are fixedly connected between the movable block 22 and the movable groove 19. The movable block 22 is fixedly connected to the first filter plate 17, and the second filter plate 18 is fixedly connected to the inner wall of the nozzle 7, so that the oil is further buffered when being filtered.

[0028] In the utility model, by providing a liquid supply buffer mechanism at one end of the connecting pipe 1, the nozzle 7 can have a buffering ability when connected to an external mechanism. By providing a liquid guide buffer mechanism between the oil inlet pipe 9 and the connecting pipe 1, a buffering protection treatment can be performed during oil supply. By providing a filtering mechanism in the nozzle 7 and the processing end 8, the oil can be filtered multiple times. Silicon carbide can work stably in a high temperature environment, while the high temperature resistance of ceramics is relatively weak. By providing the oil inlet pipe 9, the processing end 8 and the nozzle 7 with silicon carbide material, the high temperature resistance of the nozzle can be guaranteed.

[0029] Working principle: In the idle part of this device, all the above components, which refer to structural parts, are connected. The specific connection means should refer to the following working principle. The components are connected in sequence. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process, and no further explanation is given when using the device.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A high temperature resistant nozzle, comprising a connecting pipe (1), characterized in that: A liquid supply buffer mechanism is provided at one end of the connecting pipe (1), an oil inlet pipe (9) is provided at the other end of the connecting pipe (1), a liquid guide buffer mechanism is provided between the oil inlet pipe (9) and the connecting pipe (1), one end of the oil inlet pipe (9) is fixedly connected to a processing end (8), the other end of the processing end (8) is fixedly connected to a nozzle (7), a filtering mechanism is provided inside the nozzle (7) and the processing end (8), and the oil inlet pipe (9), the processing end (8) and the nozzle (7) are made of silicon carbide.

2. The high temperature resistant nozzle according to claim 1, characterized in that: The liquid supply buffer mechanism comprises a first connecting plate (3) and an oil supply pipe (2); one end of the oil supply pipe (2) is fixedly connected to the connecting pipe (1); and a plurality of first springs (10) and a first damper (11) are fixedly connected between the first connecting plate (3) and the connecting pipe (1).

3. The high temperature resistant nozzle according to claim 1, characterized in that: The liquid guiding buffer mechanism comprises a second connecting plate (4) and an oil guiding hose (15); the oil guiding hose (15) is fixedly connected to the inner wall of the connecting pipe (1); the other end of the oil guiding hose (15) is fixedly connected to a connector (16); the connector (16) is threadedly connected to the oil inlet pipe (9); and a plurality of second springs (13) and a second damper (14) are fixedly connected between the second connecting plate (4) and the connecting pipe (1).

4. The high temperature resistant nozzle according to claim 3, characterized in that: A silicon carbide gasket (12) is fixedly connected to the outer wall of the second connecting plate (4).

5. The high temperature resistant nozzle according to claim 4, characterized in that: The outer wall of the oil inlet pipe (9) is fixedly connected to a third connecting plate (6), the outer wall of the third connecting plate (6) is threadedly connected to a plurality of bolts (5), and the bolts (5) are threadedly connected to the second connecting plate (4).

6. The high temperature resistant nozzle according to claim 1, characterized in that: The filtering mechanism comprises a first filter plate (17) and a second filter plate (18), the first filter plate (17) being located inside the processing end (8), and the second filter plate (18) being located inside the nozzle (7).

7. The high temperature resistant nozzle according to claim 1, characterized in that: The inner wall of the processing end (8) is provided with a plurality of movable grooves (19), the inner wall of the movable groove (19) is slidably connected to a movable block (22), a third spring (20) and a third damper (21) are fixedly connected between the movable block (22) and the movable groove (19), the movable block (22) and the first filter plate (17) are fixedly connected, and the second filter plate (18) and the inner wall of the nozzle (7) are fixedly connected.

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