Dual fuel carburettor and method of operation thereof

Abstract

The present application relates to a kind of dual-fuel carburetor and its working method, including carburetor body, the lower part of the carburetor body is equipped with kerosene storage cup, the inside of carburetor body is equipped with main oil injection hole and idling oil injection hole above kerosene storage cup, the lower end of main oil injection hole is connected with kerosene storage cup, the lower end of idling oil injection hole is connected with the gasoline connecting pipe that passes out from the bottom of kerosene storage cup, the main oil injection hole and idling oil injection hole are connected by the oil passage in the middle.The dual-fuel carburetor of the present application is reasonably designed, can use dual fuel, it is convenient for user to select independently according to situation;Use gasoline when engine starts and idles, use kerosene when normal operation, save the relative economic expenditure of user, reduce use cost;And when engine is in idle state, throttle opening is small, using gasoline as fuel can avoid unstable idling condition.

Description

Technical Field

[0001] The present invention relates to the field of carburetors, in particular to a dual-fuel carburetors and a working method thereof. Background Art

[0002] A carburetor is a precision mechanical device that atomizes a mixture of gasoline and air in a certain proportion under the vacuum created by the engine. However, the rising price of gasoline has resulted in significant financial costs for users, and the carburetor's limited use of only one fuel has also created significant inconvenience. Summary of the Invention

[0003] In view of this, an object of the present invention is to provide a dual-fuel carburetor and a working method thereof, which have dual-fuel functions, are easy to use, and reduce the cost of use.

[0004] The present invention is implemented by the following scheme: a dual-fuel carburetor includes a carburetor body, a kerosene storage cup is provided at the lower part of the carburetor body, a main fuel injection hole and an idle fuel injection hole are provided above the kerosene storage cup inside the carburetor body, the lower end of the main fuel injection hole is connected to the kerosene storage cup, and the lower end of the idle fuel injection hole is connected to a gasoline connecting pipe extending from the bottom of the kerosene storage cup, and the main fuel injection hole and the idle fuel injection hole are connected through the oil hole in the middle.

[0005] Furthermore, it also includes a gasoline storage cup. A kerosene pump and a gasoline pump are provided on the side of the carburetor body. The inlet end of the kerosene pump is connected to a kerosene supply pipe, and a kerosene inlet pipe is connected between the outlet end of the kerosene pump and the kerosene storage cup; the inlet end of the gasoline pump is connected to a gasoline supply pipe, a transition pipe is connected between the outlet end of the gasoline pump and the gasoline storage cup, and a gasoline inlet pipe is connected between the gasoline storage cup and the gasoline connecting pipe.

[0006] Furthermore, a main foaming tube is provided in the main fuel injection hole, and a main metering hole is provided below the main foaming tube; an idle foaming tube is provided in the idle fuel injection hole, and an idle metering hole is provided below the idle foaming tube.

[0007] Furthermore, a throttle valve is provided at the outlet end of the mixed air passage inside the carburetor body, and a choke valve is provided at the inlet end; and the main fuel injection hole is communicated with the middle part of the mixed air passage.

[0008] Furthermore, the carburetor body is provided with a first transition hole, a second transition hole, an idle air inlet hole and an idle oil outlet hole. One end of the first transition hole and the second transition hole is connected to the idle oil injection hole, and the other end passes through the outer side of the carburetor body. The outward ends of the first transition hole and the second transition hole are both provided with steel balls; the idle air inlet hole is connected to the first transition hole; one end of the idle oil outlet hole is connected to the second transition hole, and the other end is connected to the middle part of the mixture duct.

[0009] A working method of the dual-fuel carburetor as described above provides gasoline as fuel through the gasoline connecting pipe when the engine is started and idling; and provides kerosene as fuel through the kerosene storage cup when the engine is operating normally.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the dual-fuel carburetor of the present invention is reasonably designed, has dual-fuel functions, is easy to use, and can be selected independently according to the situation; gasoline is used when the engine is started and idling, and kerosene is used during normal operation, which saves users relative economic expenditure and reduces usage costs; and when the engine is in the idling state, the throttle opening is small, and using gasoline as fuel can avoid unstable idling conditions.

[0011] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an azimuthal stereogram of an embodiment of the present invention;

[0013] Figure 2 It is another perspective view of an embodiment of the present invention;

[0014] Figure 3 This is a front view of an embodiment of the present invention;

[0015] Figure 4 yes Figure 3 AA section view;

[0016] Figure 5 yes Figure 4 BB cross-sectional view;

[0017] Explanation of the numbers in the figure: 100-carburetor body, 110-main fuel injection hole, 111-main foaming tube, 112-main foaming tube, 120-idle fuel injection hole, 121-idle foaming tube, 122-idle metering hole, 130-gasoline connecting pipe, 140-oil hole, 150-mixing air duct, 160-first transition hole, 170-second transition hole, 180-idle air intake hole, 190-idle oil outlet hole, 200-kerosene storage cup, 300-gasoline storage cup, 400-kerosene pump, 500-gasoline pump. DETAILED DESCRIPTION

[0018] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] like Figures 1 to 5 As shown, a dual-fuel carburetor includes a carburetor body 100, a kerosene reservoir 200 disposed at the lower portion of the carburetor body 100, and a main fuel injection hole 110 and an idle fuel injection hole 120 disposed within the carburetor body 100 above the kerosene reservoir 200. The lower end of the main fuel injection hole 110 communicates with the kerosene reservoir 200, while the lower end of the idle fuel injection hole is connected to a gasoline connecting pipe 130 extending from the bottom of the kerosene reservoir. The main fuel injection hole 110 and the idle fuel injection hole 120 communicate via a central oil passage 140. The dual-fuel carburetor of the present invention can use dual fuels, allowing users to choose between them. It can also use gasoline during engine startup and idling, and kerosene during normal operation, thereby saving users considerable financial resources and reducing operating costs. Furthermore, when the engine is idling, the throttle opening is relatively small, and using gasoline as fuel can prevent unstable idling conditions.

[0021] In this embodiment, a gasoline storage cup 300 is also included. A kerosene pump 400 and a gasoline pump 500 are provided on the side of the carburetor body. The kerosene pump and the gasoline pump are overlapped and arranged on the side of the carburetor body. The inlet end of the kerosene pump is connected to a kerosene supply pipe, and a kerosene inlet pipe is connected between the outlet end of the kerosene pump and the kerosene storage cup; the inlet end of the gasoline pump is connected to a gasoline supply pipe, a transition pipe is connected between the outlet end of the gasoline pump and the gasoline storage cup, and a gasoline inlet pipe is connected between the gasoline storage cup and the gasoline connecting pipe; since gasoline is basically only used during starting and idling, the amount of gasoline used is relatively small. The use of an external gasoline storage cup can simplify the structure of the carburetor body and reduce the difficulty of manufacturing.

[0022] In this embodiment, a main foaming tube 111 is provided in the main fuel injection hole 110, and a main metering hole 112 is provided below the main foaming tube; an idle foaming tube 121 is provided in the idle fuel injection hole 120, and an idle metering hole 122 is provided below the idle foaming tube.

[0023] In this embodiment, the mixture passage 150 inside the carburetor body 100 is provided with a throttle valve at the outlet end and a choke valve at the inlet end to control the air intake and the amount of air intake; the main fuel injection hole is connected to the middle of the mixture passage.

[0024] In this embodiment, a first transition hole 160, a second transition hole 170, an idle air inlet hole 180 and an idle oil outlet hole 190 are provided in the carburetor body. One end of the first transition hole and the second transition hole is connected to the idle oil injection hole, and the other end passes through the outer side of the carburetor body. A steel ball is provided at the outward end of the first transition hole and the second transition hole; the idle air inlet hole is connected to the first transition hole; one end of the idle oil outlet hole is connected to the second transition hole, and the other end is connected to the middle of the mixture passage.

[0025] A dual-fuel carburetor operating method as described above provides gasoline as fuel through the gasoline connecting pipe during engine startup and idling; and kerosene as fuel through the kerosene reservoir during normal engine operation. Since kerosene is cheaper than gasoline, this saves users considerable financial expense and reduces operating costs. Furthermore, when the engine is idling, the throttle opening is relatively small, so using gasoline as fuel can prevent unstable idling conditions and ensure stable carburetor operation.

[0026] Unless otherwise stated, for any of the technical solutions disclosed in the present invention, if a numerical range is disclosed, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely a numerical range that is representative or has a more obvious technical effect among many feasible numerical values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, the present invention discloses some numerical values ​​to illustrate the technical solutions of the present invention. Moreover, the numerical values ​​listed above should not be construed as limiting the scope of protection of the present invention.

[0027] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0028] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes include states or shapes that are approximate, similar, or close thereto.

[0029] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A dual-fuel carburetor, characterized in that: The carburetor comprises a carburetor body, a kerosene reservoir cup is provided at the lower part of the carburetor body, a main fuel injection hole and an idle fuel injection hole are provided above the kerosene reservoir cup inside the carburetor body, the lower end of the main fuel injection hole is connected to the kerosene reservoir cup, the lower end of the idle fuel injection hole is connected to a gasoline connecting pipe passing through the bottom of the kerosene reservoir cup, and the main fuel injection hole and the idle fuel injection hole are connected through the oil hole in the middle; the carburetor also comprises a gasoline reservoir cup, a kerosene pump and a gasoline pump are provided at the side of the carburetor body, the inlet end of the kerosene pump is connected to a kerosene supply pipe, and a kerosene inlet pipe is connected between the outlet end of the kerosene pump and the kerosene reservoir cup; the inlet end of the gasoline pump is connected to the gasoline supply pipe, and the outlet end of the gasoline pump is connected to the gasoline reservoir cup A transition pipe is connected between them, and a gasoline inlet pipe is connected between the gasoline storage cup and the gasoline connecting pipe; a throttle is provided at the outlet end of the mixture passage inside the carburetor body, and a choke is provided at the inlet end; the main fuel injection hole is communicated with the middle part of the mixture passage; a first transition hole, a second transition hole, an idle air inlet hole and an idle oil outlet hole are provided in the carburetor body, one end of the first transition hole and the second transition hole are connected with the idle oil injection hole, and the other end passes through the outer side of the carburetor body, and a steel ball is provided at the outward end of the first transition hole and the second transition hole; the idle air inlet hole is connected with the first transition hole; one end of the idle oil outlet hole is connected with the second transition hole, and the other end is connected with the middle part of the mixture passage.

2. The dual-fuel carburetor according to claim 1, characterized in that: A main foaming tube is provided in the main oil injection hole, and a main metering hole is provided below the main foaming tube; an idle foaming tube is provided in the idle oil injection hole, and an idle metering hole is provided below the idle foaming tube.

3. A method for operating a dual-fuel carburetor according to claim 1, characterized in that: When the engine is started and idling, gasoline is provided as fuel through the gasoline connecting pipe; when the engine is operating normally, kerosene is provided as fuel through the kerosene storage cup.

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