Hydrogen machine air inlet system, hydrogen machine and vehicle

Abstract

The utility model relates to the field of hydrogen engines, in particular to a hydrogen machine gas inlet system, a hydrogen machine and a vehicle. The hydrogen machine gas inlet system comprises a hydrogen gas rail and an integrated gas inlet pipe, an air pipeline and a hydrogen pipeline are integrated in a pipe body of the integrated air inlet pipe. The hydrogen gas rail is used for spraying hydrogen into the hydrogen pipeline of the integrated gas inlet pipe, and the hydrogen flows to the air pipeline from the hydrogen pipeline and then is mixed with air. The pipe wall structure of the integrated air inlet pipe forms the air pipeline and the hydrogen pipeline, the hydrogen pipeline injects hydrogen in the hydrogen gas rail into the air pipeline to be mixed with air, and the air pipeline injects mixed gas into a hydrogen machine air cylinder. According to the gas inlet system, the gas inlet main pipe, the gas inlet manifold and the hydrogen guide pipe in an existing gas inlet system are integrated in one die, the number of parts of the gas inlet system can be reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydrogen engines, in particular to a hydrogen engine air intake system, a hydrogen engine and a vehicle. BACKGROUND

[0002] The existing hydrogen engine air intake system is different from the fuel engine. In the hydrogen engine air intake system, the hydrogen rail is communicated with the air intake manifold. When the engine is in the air intake, the hydrogen rail valve injects hydrogen into the air intake manifold, mixes hydrogen and air between the air intake manifold and the air intake manifold, and finally injects into the cylinder.

[0003] In the existing hydrogen engine air intake system, multiple components such as air intake manifold, air intake manifold and hydrogen intake pipe need to be provided, and too many components lead to high mold cost during production.

[0004] In order to improve the integration of the hydrogen engine air intake system and reduce the number of air intake pipeline components, the present application provides a hydrogen engine air intake system. Utility model content

[0005] In order to overcome the problems in the related art, the first aspect of the present application provides a hydrogen engine air intake system, comprising a hydrogen rail and an integrated air intake pipe;

[0006] The pipe body of the integrated air intake pipe is integrated with an air pipeline and a hydrogen pipeline;

[0007] The air pipeline is provided with an air inlet and an air outlet, the air inlet is communicated with an external air inlet pipe, and the air outlet is communicated with a cylinder;

[0008] The hydrogen pipeline is provided with a hydrogen inlet and a hydrogen outlet, the hydrogen inlet is communicated with the hydrogen rail, and the hydrogen outlet is communicated with the air pipeline;

[0009] The hydrogen rail is used for spraying hydrogen into the integrated air intake pipe to mix with air.

[0010] In an embodiment, the air pipeline is composed of a manifold and a multi-way manifold. The multi-way manifold is provided with N manifold connectors connected to each cylinder respectively, and the hydrogen pipeline is arranged in the pipe wall of each manifold connector.

[0011] In an embodiment, the hydrogen pipeline is provided with a hydrogen injection port, and the hydrogen injection port is directed to the center of the air pipeline.

[0012] In an embodiment, the hydrogen injection port is directed to the center of the air pipeline, the injection angle of the hydrogen injection port is greater than 0° and less than 90°, and the injection angle is the included angle between the hydrogen injection direction and the air flow direction in the air pipeline.

[0013] In an embodiment, the hydrogen gas rail comprises a rail body and a hydrogen gas injection nozzle, two ends of the hydrogen gas injection nozzle are communicated with the rail body and the hydrogen gas pipeline respectively.

[0014] In an embodiment, the rail body is provided with a hydrogen gas pressure sensor and a hydrogen gas temperature sensor for monitoring hydrogen gas pressure and hydrogen gas temperature.

[0015] The second aspect of the present application provides a hydrogen gas machine comprising the hydrogen gas machine air intake system of the first aspect of the present application.

[0016] The third aspect of the present application provides a vehicle comprising the hydrogen gas machine of the second aspect of the present application.

[0017] The technical solution provided by the present application can include the following beneficial effects:

[0018] When the mold is opened, the air pipeline and the hydrogen gas pipeline are integrally formed on the integrated air intake pipe, the air pipeline and the hydrogen gas pipeline are formed by the pipe wall structure of the integrated air intake pipe, the hydrogen gas pipeline injects hydrogen gas in the hydrogen gas rail into the air pipeline to mix with air, and the air pipeline injects the mixed gas into the hydrogen gas machine cylinder. The present application integrates the air intake manifold, the air intake manifold and the hydrogen gas guide pipe in the existing air intake system in a set of molds, which can reduce the number of parts of the air intake system and reduce the production cost.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description of exemplary embodiments of the present application taken in conjunction with the accompanying drawings, in which like reference characters refer to the like parts throughout the figures, and in which:

[0021] Figure 1 FIG. 1 shows a structural schematic diagram of a hydrogen gas machine air intake system according to an embodiment of the present application;

[0022] Figure 2 FIG. 2 shows a structural schematic diagram of a hydrogen gas machine with the hydrogen gas machine air intake system shown in FIG. 1; Figure 1

[0023] FIG. 1 shows a structural schematic diagram of a hydrogen gas machine air intake system according to an embodiment of the present application; DETAILED DESCRIPTION

[0024] ​The preferred embodiments of the present application will be described in more detail with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it is to be understood that the present application can be carried out in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0025] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one piece of information from another piece of information of the same type. For example, a first information can also be referred to as a second information, and similarly, a second information can also be referred to as a first information without departing from the scope of the present application. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] Embodiment one

[0028] In the existing hydrogen engine intake system, multiple components such as intake manifold, intake manifold and gas rail need to be set. Too many parts lead to high mold cost during production.

[0029] In order to improve the integration of the hydrogen engine intake system and reduce the number of intake pipe components, the present application provides a hydrogen engine intake system, as shown in Figure 1 The hydrogen engine intake system includes a hydrogen gas rail 1 and an integrated intake pipe 2.

[0030] The hydrogen gas rail 1 is used to inject hydrogen into the integrated intake pipe 2 and mix with air.

[0031] Further, the pipe wall of the integrated intake pipe 2 surrounds to form an air pipe 21 and a hydrogen pipe 22.

[0032] The air pipeline 21 is provided with an air inlet and an air outlet, the air inlet is communicated with an external air inlet pipe, and the air outlet is communicated with a cylinder.

[0033] Specifically, the air pipeline 21 is composed of a main pipe and a multi-way manifold. The multi-way manifold is provided with N manifold joints connected with each cylinder respectively, and the hydrogen pipeline 22 is arranged in the pipe wall of each manifold joint.

[0034] When the mold is opened, the air pipeline 21 and the hydrogen pipeline 22 are integrally formed on the integrated air inlet pipe 2, the air pipeline 21 and the hydrogen pipeline 22 are formed by the pipe wall structure of the integrated air inlet pipe 2, the hydrogen pipeline 22 injects hydrogen in the hydrogen gas rail 1 into the air pipeline 21 to mix with air, and the air pipeline 21 injects the mixed gas into the hydrogen engine cylinder. The existing air inlet system, the air inlet manifold and the hydrogen guide pipe in the embodiment are integrated in a set of molds, which can reduce the number of parts of the air inlet system and reduce the production cost.

[0035] Embodiment two

[0036] Based on embodiment one, in order to illustrate the specific structure of the hydrogen engine air inlet system of embodiment one, the embodiment provides a hydrogen engine air inlet system based on embodiment one, as shown in Figure 1 The hydrogen gas rail 1 and the integrated air inlet pipe 2 are provided.

[0037] Further, the hydrogen gas rail 1 includes a rail body 10 and a hydrogen injection nozzle 11, and the two ends of the hydrogen injection nozzle 11 are respectively communicated with the gas tank body and the hydrogen pipeline 22.

[0038] Further, the gas tank body is provided with a hydrogen pressure sensor and a hydrogen temperature sensor. The hydrogen pressure sensor and the hydrogen temperature sensor are used to monitor the hydrogen pressure and the hydrogen temperature, and the pressure is controlled by the pressure regulating valve when the pressure is abnormal, so as to ensure the stability of the hydrogen pressure of the rail.

[0039] The existing hydrogen engine air inlet system is not sufficient for mixing hydrogen and air, which leads to uneven combustion of the cylinder and causes abnormal vibration of the engine.

[0040] Further, the outlet of the hydrogen pipeline 22 is provided with a hydrogen injection port 221, the hydrogen injection port 221 is arranged at the bottom center of the manifold joint, and the hydrogen injection port 221 faces the center of the air pipeline 21.

[0041] Further, the hydrogen injection port 221 has an injection angle greater than 20° and less than 40°, the injection angle being the included angle between the hydrogen injection direction and the air flow direction in the air pipe 21. When the injection angle is greater than 40°, the hydrogen engine is prone to icing during low-temperature start-up, and therefore the injection angle in the embodiments of the present application is 30°.

[0042] In the embodiments of the present application, there is an included angle between the hydrogen injection direction and the air flow direction, and when the high-pressure hydrogen is injected out of the hydrogen injection port 221 along the hydrogen pipe 22, the hydrogen and the air collide and mix, so that the mixed gas reaching the cylinder is more uniform, preventing abnormal vibration during combustion caused by non-uniform mixed gas.

[0043] Embodiment Three

[0044] A hydrogen engine, as shown, comprises the hydrogen engine air intake system of Embodiment One or Two. Figure 2

[0045] Embodiment Four

[0046] A vehicle, comprising the hydrogen engine of Embodiment Three.

[0047] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical application, or improvement to the technology in the market, or to enable other ordinary skilled persons in the art to understand the disclosed embodiments.​

Claims

1. A hydrogen gas machine air intake system, characterized by, The hydrogen gas rail (1) and the integrated air intake pipe (2) are included. The air pipe (21) and the hydrogen pipe (22) are integrated in the pipe body of the integrated air intake pipe (2). The air pipe (21) is provided with an air inlet and an air outlet, the air inlet is communicated with an external air intake connector, and the air outlet is communicated with a cylinder. The hydrogen pipe (22) is provided with a hydrogen inlet and a hydrogen outlet, the hydrogen inlet is communicated with the hydrogen gas rail (1), and the hydrogen outlet is communicated with the air pipe (21). The hydrogen gas rail (1) is used for spraying hydrogen into the integrated air intake pipe (2) to mix with air.

2. A hydrogen gas machine intake system according to claim 1, wherein The air pipe (21) is composed of a main pipe and a multi-way manifold, the multi-way manifold is provided with N manifold connectors connected with each cylinder respectively, and the hydrogen pipe (22) is arranged in the pipe wall of each manifold connector.

3. The hydrogen gas machine air intake system of claim 1, wherein, The hydrogen outlet of the hydrogen pipe (22) is provided with a hydrogen injection port (221), and the hydrogen injection port (221) faces the center of the air pipe (21).

4. A hydrogen gas machine air intake system according to claim 3, wherein The injection angle of the hydrogen injection port (221) is greater than 0° and less than 90°, and the injection angle is the included angle between the hydrogen injection direction and the air flow direction in the air pipe (21).

5. The hydrogen gas machine intake system of claim 1, wherein, The hydrogen gas rail (1) includes a rail body (10) and a hydrogen injection nozzle (11), and the two ends of the hydrogen injection nozzle (11) are respectively communicated with a gas cabinet body and the hydrogen pipe (22).

6. A hydrogen gas machine air intake system according to claim 5, wherein The gas cabinet body is provided with a hydrogen pressure sensor and a hydrogen temperature sensor, and the hydrogen pressure sensor and the hydrogen temperature sensor are used for monitoring the hydrogen pressure and the hydrogen temperature.

7. A hydrogen generator characterized by comprising: The hydrogen gas machine intake system of any one of claims 1 to 6 is included.

8. A vehicle characterized by comprising: The hydrogen gas machine of claim 7 is included.

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