Multi-cylinder multi-fuel mixer and engine

Abstract

The utility model belongs to the technical field of internal combustion engines, and provides a multi-cylinder multi-fuel mixer and an engine with the multi-cylinder multi-fuel mixer, the multi-cylinder multi-fuel mixer comprises a mixer main body, the mixer main body is provided with a mixing chamber and a gas inlet channel communicated with the mixing chamber, and the gas inlet channel is communicated with the mixing chamber. The number of the mixing chambers is equal to that of combustion chambers of the corresponding engine, and the mixing chambers communicate with the corresponding combustion chambers so as to independently supply air to the combustion chambers. The multi-cylinder multi-fuel mixer and the engine provided by the utility model are simple in structure, reasonable in design and more uniform in fuel gas distribution.

Description

Technical Field

[0001] The utility model relates to the technical field of internal combustion engines, in particular to a multi-cylinder multi-fuel mixer and an engine. Background Art

[0002] An internal combustion engine is an engine that uses oil and / or gas as fuel and converts the heat released by the fuel combustion into mechanical energy. A multi-fuel engine is an engine that can use both oil and gas as fuel. A multi-cylinder multi-fuel engine is a multi-fuel engine with multiple combustion chambers.

[0003] As a major component of the engine, the mixer is used to mix fuel and air in a corresponding proportion (i.e., a proportion that adapts to the current operating conditions) to form a mixture, and then transport the mixture to the combustion chamber for combustion.

[0004] However, the multi-cylinder multi-fuel mixer in the prior art has only one mixing chamber, so that the mixed gases of all cylinders are mixed in the mixing chamber, which easily leads to uneven distribution of fuel gas and chaotic airflow. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a multi-cylinder multi-fuel mixer and an engine to solve or alleviate the above-mentioned technical problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, on the one hand, the utility model provides a multi-cylinder multi-fuel mixer, including a mixer body, on which a mixing chamber and an intake duct connected to the mixing chamber are provided. The number of the mixing chambers is multiple and equal to the number of combustion chambers of the corresponding engine. The multiple mixing chambers are respectively connected to the corresponding combustion chambers to independently supply air to each of the combustion chambers.

[0007] Furthermore, the number of the air inlet ducts is equal to the number of the mixing chambers, and the air inlet ends of the plurality of air inlet ducts are connected to the air supply system, and the air outlet ends are respectively connected to the corresponding mixing chambers, so as to independently supply air to each mixing chamber.

[0008] Furthermore, the side wall of the mixing chamber is provided with air intake holes, the number of the air intake holes is equal to the number of the air inlet channels and corresponds one to one, the air inlet end of the air intake hole is connected to the corresponding air inlet channel, and the air outlet end is connected to the corresponding mixing chamber.

[0009] Furthermore, the axis of the air intake hole passes through the center of the throat of the mixing chamber.

[0010] Furthermore, the mixer body is provided with an air supply channel, the number of the air supply channels is equal to the number of mixing chambers and corresponds one to one, the air inlet ends of the multiple air supply channels are connected to the air supply system, and the air outlet ends are respectively connected to each mixing chamber, and the air outlet ends of the air supply channels are located at the rear end of the throttle.

[0011] Furthermore, the number of the mixing chambers is two.

[0012] Furthermore, the mixer body is provided with fuel channels, the number of which is equal to the number of mixing chambers, and the oil inlet ends of the plurality of fuel channels are connected to the fuel supply system, and the oil outlet ends are respectively connected to the corresponding mixing chambers.

[0013] On the other hand, the present invention further provides an engine comprising any one of the multi-cylinder multi-fuel mixers described above.

[0014] Beneficial effects of the utility model:

[0015] The multi-cylinder multi-fuel mixer and engine provided by the utility model provide mixing chambers equal in number to the combustion chambers, so that the mixers entering each combustion chamber are independently mixed in the corresponding mixing chamber, thereby avoiding uneven distribution of the fuel gas and chaotic airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 A three-dimensional view of a multi-cylinder multi-fuel mixer provided by an embodiment of the present invention in a first direction;

[0018] Figure 2 for Figure 1 A perspective view of the multi-cylinder multi-fuel mixer shown in a second direction;

[0019] Figure 3 for Figure 1 A cross-sectional view of a multi-cylinder multi-fuel mixer is shown.

[0020] Reference numerals:

[0021] 100. Mixer body; 110. Mixing chamber; 120. Intake duct; 130. Intake aperture; 140. Fuel channel; 150. Air supply channel; 200. Throttle valve; 300. Choke valve; 400. Intake connector. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0026] In this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] like Figure 1-3 As shown, the present invention provides a multi-cylinder multi-fuel mixer, including a mixer body 100, which is provided with a mixing chamber 110 and an intake duct 120 connected to the mixing chamber 110. A choke 300 and a throttle 200 are provided in the mixing chamber 110. These are all prior art and will not be described in detail here.

[0029] like Figure 1-3 As shown, in this embodiment, the number of mixing chambers 110 is multiple and equal to the number of combustion chambers of the corresponding engine. The multiple mixing chambers 110 are respectively connected to the multiple combustion chambers of the engine to independently supply air to each combustion chamber.

[0030] Specifically, gas or fuel enters the mixing chamber 110 and mixes with air to form a mixed gas. The mixed gas formed in each mixing chamber 110 is respectively sent into the corresponding combustion chamber through the corresponding intake pipe for combustion, thereby avoiding uneven distribution of gas and chaotic airflow.

[0031] In this embodiment, there are two mixing chambers 110 .

[0032] like Figure 3 As shown, the number of air inlet ducts 120 is equal to the number of mixing chambers 110 , and the air inlet ends of the multiple air inlet ducts 120 are connected to the air supply system, and the air outlet ends are respectively connected to the corresponding mixing chambers 110 to independently supply air to each of the mixing chambers 110 .

[0033] It should be noted that the air inlet ends of the multiple air inlet ducts 120 can be connected to the gas supply system via the same gas pipe, or each air inlet duct 120 can be connected to the gas supply system via a separate gas pipe. In this embodiment, the air inlet end of each air inlet duct 120 is provided with an air inlet connector 400. The air inlet duct 120 is connected to the pipeline through the air inlet connector 400 and thus communicates with the gas supply system. The gas supply system is a gas tank that stores gas.

[0034] In this embodiment, the gas is introduced through each mixing chamber 110 respectively, thereby further improving the uniformity of gas distribution.

[0035] like Figure 3 As shown, the side wall of the mixing chamber 110 is provided with air intake holes 130. The number of the air intake holes 130 is equal to the number of the air inlet ducts 120 and corresponds one to one. The air inlet end of the air intake hole 130 is connected with the corresponding air inlet duct 120, and the air outlet end is connected with the mixing chamber 110. By providing the air intake holes 130, the cross-section of the air inlet duct 120 can be changed efficiently and quickly, and at the same time, it is convenient for engineering personnel to match.

[0036] Preferably, the axis of the air intake hole 130 passes through the center of the throat of the mixing chamber 110, thereby ensuring that the gas enters the throat most effectively and makes the gas and air mix more evenly, which is beneficial to the operation of the engine.

[0037] like Figure 3 As shown, the mixer body 100 is provided with an air supply channel 150. The number of the air supply channels 150 is equal to the number of the mixing chambers 110 and corresponds one to one. The air inlet ends of the multiple air supply channels 150 are connected to the air supply system, and the air outlet ends are respectively connected to the corresponding mixing chambers 110, and the air outlet ends of the air supply channels 150 are located at the front end of the throttle valve 200.

[0038] In this embodiment, by directly passing the gas between the mixer and the intake pipe, the gas entering the air supply channel 150 is not affected by the opening of the throttle valve 200. Under the working conditions where the throttle valve 200 is opened relatively small and the negative pressure is relatively low, the purpose of direct ventilation is achieved, thereby meeting the gas demand under low working conditions.

[0039] like Figure 3 As shown, the mixer body 100 is further provided with fuel channels 140, and the number of the fuel channels 140 is equal to the number of the mixing chambers 110. The oil inlet ends of the multiple fuel channels 140 are connected to the fuel supply system, and the oil outlet ends are respectively connected to the corresponding mixing chambers 110, so that the engine can use not only gas as fuel but also fuel oil as fuel, thereby achieving the purpose of improving the versatility of the engine.

[0040] In one embodiment, the present invention further provides an engine comprising any one of the multi-cylinder multi-fuel mixers described above.

[0041] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A multi-cylinder multi-fuel mixer, comprising a mixer body (100), wherein the mixer body (100) is provided with a mixing chamber (110) and an intake passage (120) communicating with the mixing chamber (110), characterized in that: The number of the mixing chambers (110) is multiple and equal to the number of the combustion chambers of the corresponding engine. The multiple mixing chambers (110) are respectively connected to the corresponding combustion chambers to independently supply air to each combustion chamber.

2. The multi-cylinder multi-fuel mixer according to claim 1, characterized in that: The number of the air inlet ducts (120) is equal to the number of the mixing chambers (110), and the air inlet ends of the plurality of air inlet ducts (120) are connected to the air supply system, and the air outlet ends are respectively connected to the corresponding mixing chambers (110), so as to independently supply air to each mixing chamber (110).

3. The multi-cylinder multi-fuel mixer according to claim 2, characterized in that: The side wall of the mixing chamber (110) is provided with air intake holes (130), the number of the air intake holes (130) is equal to the number of the air intake channels (120) and corresponds one to one, the air intake ends of the air intake holes (130) are connected to the corresponding air intake channels (120), and the air outlet ends are connected to the corresponding mixing chamber (110).

4. The multi-cylinder multi-fuel mixer according to claim 3, characterized in that: The axis of the air intake hole (130) passes through the center of the throat of the mixing chamber (110).

5. The multi-cylinder multi-fuel mixer according to any one of claims 1 to 4, characterized in that: The mixer body (100) is provided with air supply channels (150), the number of the air supply channels (150) being equal to the number of the mixing chambers (110) and corresponding one to one, the air inlet ends of the plurality of air supply channels (150) being connected to the air supply system, and the air outlet ends being connected to the corresponding mixing chambers (110), and the air outlet ends of the air supply channels (150) being located at the front end of the throttle valve (200).

6. The multi-cylinder multi-fuel mixer according to claim 5, characterized in that: The number of the mixing chambers (110) is two.

7. The multi-cylinder multi-fuel mixer according to claim 1, 2, 3, 4 or 6, characterized in that: The mixer body (100) is further provided with fuel channels (140), the number of which is equal to the number of the mixing chambers (110), and the oil inlet ends of the plurality of fuel channels (140) are connected to the fuel supply system, and the oil outlet ends are respectively connected to the corresponding mixing chambers (110).

8. An engine, characterized in that: A multi-cylinder multi-fuel mixer comprising the multi-cylinder multi-fuel mixer according to any one of claims 1 to 7.

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