Double-cavity double-gas supply system

Abstract

The utility model provides a double-cavity double-fuel gas supply system which is characterized in that two independent fuel gas supply chambers are arranged in a body, each fuel gas supply chamber is communicated with a gas inlet pipe, each fuel gas supply chamber comprises a main channel and an idling channel which are arranged in parallel, the main channel comprises a main spray pipe and a first adapter, and the main spray pipe is communicated with the idling channel. The main spray pipe is mounted on the first adapter, and a main metering hole communicated with the main spray pipe is formed in the first adapter and used for controlling the flow of airflow flowing into the main channel; the idling channel comprises a second adapter, and an idling metering hole is formed in the second adapter and used for controlling the flow of airflow flowing into the idling channel. The system is ingenious in design, all parts are reasonably arranged, and fine adjustment of the gas supply flow is achieved.

Description

Technical Field

[0001] The invention relates to a gas supply system, in particular to a dual-chamber dual-gas supply system. Background Art

[0002] Currently, two-cylinder general-purpose engines are commonly used in generators, fire pumps, cleaning machines, or marine propulsion. The most economical fuels are mainly liquefied petroleum gas (LPG) and natural gas (NG). When a two-cylinder engine uses LPG and natural gas, a pressure reducing valve is usually used to reduce the pressure of the LPG and natural gas. The LPG and NG are then connected to a gas supply mixer, mixed with air through the mixer, and supplied to the engine. The throttle valve adjusts the supply of the mixed gas. However, the existing gas supply mixer has poor control over the gas supply and cannot accurately adjust the gas output according to demand, affecting combustion efficiency. Utility Model Content

[0003] Therefore, the main purpose of the present invention is to solve the traditional shortcomings and provide a dual-chamber dual-gas supply system.

[0004] To achieve the above objectives, the present invention provides a dual-chamber dual-gas supply system, comprising a body and an intake pipe, wherein the body is provided with two independent gas supply chambers, each gas supply chamber being connected to the intake pipe, and each gas supply chamber comprising a main channel and an idle channel in parallel, wherein:

[0005] The main channel includes a main nozzle and a first adapter. The main nozzle is mounted on the first adapter. The first adapter is provided with a main metering orifice in communication with the main nozzle for controlling the flow rate of air flowing into the main channel.

[0006] The idle passage includes a second adapter. An idle metering hole is provided inside the second adapter for controlling the flow rate of air flowing into the idle passage.

[0007] In one embodiment of the present invention, the main nozzle is provided with a straight hole conducting along a first direction and at least one transverse hole conducting along a second direction, the first direction is perpendicular to the second direction, and the straight hole and the at least one transverse hole are both connected to the main metering orifice.

[0008] In one embodiment of the present invention, a first air supply hole is provided on the outer wall of the main channel, and the first air supply hole is connected with the straight hole, the at least one transverse hole, and the main metering hole to throttle the airflow through the main channel.

[0009] In one embodiment of the present invention, a second air supply hole is provided on the outer wall of the idle passage, and the second air supply hole is communicated with the idle metering hole to throttle the airflow passing through the idle passage.

[0010] In one embodiment of the present invention, an aperture adjustment member is provided on the periphery of the main metering orifice and / or the idle metering orifice for adjusting the size of the aperture.

[0011] In one embodiment of the present invention, a throttle shaft component is further included which is mounted on the housing. A throttle plate is mounted on the throttle shaft component, and the throttle plate covers the throat of the gas supply chamber.

[0012] In one embodiment of the present invention, the throttle shaft component includes an adjusting shaft, on which a throttle opening adjusting screw is mounted. The throttle opening adjusting screw is used to adjust the opening of the throttle plate to control the amount of air entering the engine.

[0013] In an embodiment of the present invention, the throttle shaft component further includes a mounting portion having a plurality of mounting holes distributed thereon, and the throttle plate is mounted on the throttle shaft component through the mounting holes.

[0014] In one embodiment of the present invention, a stepper motor is further included, wherein the stepper motor is connected to the adjustment shaft of the throttle shaft component, and the adjustment shaft is driven by the stepper motor to rotate forward and reverse to control the opening of the throttle plate.

[0015] In one embodiment of the present invention, the stepper motor is fixed to the housing via a motor mounting plate.

[0016] Compared with the related art, the advantages of this application are:

[0017] This new invention discloses a dual-chamber, dual-gas supply system. The main body of the system features two independent gas supply chambers, each containing a parallel main channel and an idle channel. The main channel is equipped with a main metering orifice and a first air supply orifice, which communicate with the main nozzle. The main nozzle is provided with straight holes and transverse holes in different directions, and these multiple through-holes work together to control the flow rate of air flowing into the main channel. The idle channel is equipped with an idle metering orifice and a second air supply orifice, which work together to control the flow rate of air flowing into the idle channel. This system ensures a stable flow of gas through the main and idle channels, improving engine combustion efficiency and performance. By precisely controlling the position and connection relationships of various components, the system achieves refined regulation of gas supply, making it suitable for a variety of engine types and improving engine adaptability and reliability. Furthermore, the system's compact overall structural design and rational component layout facilitate installation and maintenance, while ensuring system stability and durability.

[0018] In order to further understand the technology, method and effect of the present invention and achieve the intended purpose of the present invention, please refer to the following detailed description and drawings; in addition, the purpose, characteristics and features of the present invention can be understood more deeply and specifically; however, the drawings are provided for reference and description only and are not intended to limit the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the new dual-chamber dual-gas supply system;

[0020] Figure 2 This is a front view of the dual-chamber dual-gas supply system;

[0021] Figure 3 This is the left side view of the dual-chamber dual-gas supply system;

[0022] Figure 4 yes Figure 3 The AA cross-sectional view of the dual-chamber dual-gas supply system shown;

[0023] Figure 5 yes Figure 3 The BB cross-sectional view of the dual-chamber dual-gas supply system shown;

[0024] Figure 6 yes Figure 2 The cross-sectional view of the dual-chamber dual-gas supply system CC shown;

[0025] Figure 7 It is a top view of the main body;

[0026] Figure 8 This is a bottom view of the main body;

[0027] Figure 9 It is a three-dimensional diagram of a stepper motor;

[0028] Figure 10 It is a three-dimensional diagram of the throttle shaft component;

[0029] Figure 11 This is a three-dimensional diagram of the main nozzle;

[0030] Figure 12 It is a three-dimensional view of the main metering hole;

[0031] Figure 13 This is a three-dimensional diagram of the idle jet.

[0032] Wherein, the accompanying drawings are marked as follows:

[0033] 1: Ontology;

[0034] 10: Gas supply chamber;

[0035] 11: Main channel;

[0036] 111: main nozzle;

[0037] 111A: straight hole;

[0038] 111B: transverse hole;

[0039] 112: first adapter;

[0040] 112A: main metering orifice;

[0041] 11A: first air-injection hole;

[0042] 12: Idle channel;

[0043] 121: second adapter;

[0044] 121B: idle speed meter hole;

[0045] 12B: second air-filling hole;

[0046] 1121, 1211: aperture adjustment member;

[0047] 2: shell;

[0048] 21: upper cover;

[0049] 22: lower cover;

[0050] 3: Intake pipe;

[0051] 4: throttle shaft components;

[0052] 41: adjusting shaft;

[0053] 42: installation part;

[0054] 421: mounting hole;

[0055] 43: throttle opening adjustment screw;

[0056] 5: throttle plate;

[0057] 6: Stepper motor;

[0058] 61: Motor mounting plate. DETAILED DESCRIPTION

[0059] The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the present invention.

[0060] See also Figures 1 to 13 , Figure 1 This is a three-dimensional diagram of the new dual-chamber dual-gas supply system; Figure 2 This is a front view of the dual-chamber dual-gas supply system; Figure 3This is the left side view of the dual-chamber dual-gas supply system; Figure 4 This is the AA cross-section of the dual-chamber dual-gas supply system; Figure 5 This is a BB cross-sectional view of a dual-chamber dual-gas supply system; Figure 6 This is a cross-sectional view of the CC of the dual-chamber dual-gas supply system; Figure 7 It is a top view of the main body; Figure 8 This is a bottom view of the main body; Figure 9 It is a three-dimensional diagram of a stepper motor; Figure 10 It is a three-dimensional diagram of the throttle shaft component; Figure 11 This is a three-dimensional diagram of the main nozzle; Figure 12 It is a three-dimensional view of the main metering hole; Figure 13 It is a three-dimensional diagram of the idle jet; the arrows in each diagram indicate the direction of gas flow.

[0061] As shown in the figure, this novel system provides a dual-chamber, dual-gas supply system comprising a main body 1, a shell 2, and an intake pipe 3. The upper cover 21 of the shell 2 seals the top of the main body 1, while the lower cover 22 seals the bottom, ensuring the system's sealing and structural integrity. One end of the intake pipe 3 is mounted on the lower cover 22 of the shell 2. The other end of the intake elbow 3 is connected to an external gas source, introducing LPG or NG gas into the system and supplying it to the engine after a precisely controlled flow rate adjustment.

[0062] refer to Figures 1-6 As shown, the main body 1 is internally provided with two independent gas supply chambers 10, each of which is connected to the intake pipe 3 and includes a parallel main channel 11 and an idle channel 12. The main channel 11 further includes a main nozzle 111 and a first adapter 112. The main nozzle 111 is mounted on the first adapter 112, and the first adapter 112 is internally provided with a main metering orifice 112A in communication with the main nozzle 111 to control the flow rate of air flowing into the main channel 11. In addition to the pipeline, the idle channel 12 also includes a second adapter 121, which is internally provided with an idle metering orifice 121B to control the flow rate of air flowing into the idle channel 12.

[0063] In addition, in practice, the gas supply chamber 10 can be directly cast, which is beneficial to reducing the use of raw materials and reducing the weight of the product. At the same time, it reduces the amount of mechanical processing, simplifies the processing technology, and significantly reduces costs.

[0064] In this embodiment, the dual-chamber, dual-gas supply system is equipped with two gas supply chambers, each of which includes two parallel channels: a main channel 11 and an idle channel 12, connected to the throat. In actual use, depending on engine requirements, LPG or NG gas is connected to the intake pipe 3 and enters the lower cover plate 22. One channel of gas is then passed through the main metering orifice 112A in the dual-chamber main channel 11, through the main nozzle 111, and into the throat. The other channel is passed through the idle metering orifice 121B in the dual-chamber idle channel 12, and then into the throat. This allows for precise regulation of the airflow in the main channel 11 and the idle channel 12 to meet engine requirements and improve combustion efficiency.

[0065] In some embodiments, reference Figure 12 、 Figure 13 As shown, the main metering orifice 112A is surrounded by an aperture adjustment member 1121, and the idle metering orifice 121B is surrounded by an aperture adjustment member 1211. Aperture adjustment members 1121 and 1211 are used to adjust the aperture size. By designing the main and idle metering orifices to be adjustable, the supply requirements of different engine models are met, ensuring accurate and stable gas supply.

[0066] Further references Figure 5 、 Figure 11 As shown, in some embodiments, the main nozzle 111 is provided with a straight hole 111A extending in a first direction and at least one transverse hole 111B extending in a second direction. The first direction is perpendicular to the second direction, wherein the first direction is along the main nozzle 111, and the second direction is perpendicular to the main nozzle 111. Both the straight hole 111A and the at least one transverse hole 111B communicate with the main metering orifice 112A. This communication here refers to airflow. After entering the main nozzle 111 through the main metering orifice 112A, the airflow is diffused in different directions by the straight hole 111A and the at least one transverse hole 111B. In this embodiment, the straight hole 111A and the transverse hole 111B in the main nozzle 111 throttle the passing gas. Together with the main metering orifice 112A, this facilitates control of the gas output from the main channel 11, improving engine operation stability.

[0067] Further references Figure 8As shown, in one embodiment, a first air supply hole 11A is provided at the bottom of the outer wall of the main channel 11 near the lower cover plate 22. The first air supply hole 11A is connected to the straight hole 111A, the at least one transverse hole 111B, and the main metering hole 112A. The connection here is airflow conduction, which enables the main channel 11 to form a stable mixed airflow, further throttling the airflow through the main channel 11 and injecting the gas into the intake. In this embodiment, the straight hole 111A and transverse hole 111B on the main nozzle 111 throttle the passing gas, cooperating with the first air supply hole 11A and the main metering hole 112A to further control the gas output of the main channel 11, making the engine operation more stable. In addition, in some embodiments, the size and position of the first air supply hole 11A can be adjusted as needed to meet the supply requirements of different engine models and ensure the accuracy and stability of the gas supply.

[0068] Further references Figure 7 As shown, in one embodiment, a second air supply hole 12B is provided on the top of the outer wall of the idle passage 12. The second air supply hole 12B communicates with the pipeline of the idle passage 12 and the idle metering hole 121B. This communication here is airflow conduction, which enables the idle passage 12 to form a stable mixed airflow, throttling the airflow through the idle passage 12, and injecting the gas into the waiting port. In practice, the idle passage 12 can be a channel with multiple bends, and the second air supply hole 12B can be provided at the top of the outer wall of the idle passage 12 near the upper cover plate 21. In this embodiment, the second air supply hole 12B and the idle metering hole 121B throttle the gas passing through the idle passage 12. The idle metering hole 121B and the second air supply hole 12B cooperate to more conveniently control the gas output of the idle passage 12, ensuring more stable engine operation. In addition, in some embodiments, the size and position of the second gas supply hole 12B can be adjusted as needed to adapt to the supply requirements of different types of engines and ensure the accuracy and stability of gas supply.

[0069] Further references Figure 2 、 Figure 3 As shown, in some embodiments, a throttle shaft component 4 is further mounted on the housing 2, and a throttle plate 5 is mounted on the throttle shaft component 4, with each throttle plate 5 covering the throat of the gas supply chamber 10. The throttle shaft component 4 is also connected to a stepper motor 6, which is electrically connected to the engine using the stepper motor as a driving element. The rotation of the stepper motor 6 controls the opening of the throttle plate 5, achieving precise control of the opening angle of the throttle plate 5. By adjusting the opening of the throttle plate 5, the amount of air entering the engine can be controlled, thereby achieving automatic adjustment of the opening of the throttle plate 5 on the throttle shaft component 4 according to the engine's needs, allowing the engine to inhale and burn.

[0070] refer to Figure 3As shown, in some embodiments, the stepper motor 6 is also fixed to the housing 2 via a motor mounting plate 61 .

[0071] Further references Figure 9 、 Figure 10 As shown, in some embodiments, the throttle shaft component 4 comprises an adjusting shaft 41 and a mounting portion 42. A throttle opening adjustment screw 43 and a stepper motor 6 are mounted on the adjusting shaft 41. The adjusting shaft 41 is driven by the stepper motor 6 to rotate forward and reverse. The throttle opening adjustment screw 43 adjusts the opening of the throttle plate 5 to control the amount of air entering the engine. The mounting portion 42 has a plurality of mounting holes 421 distributed throughout. The throttle plate 5 is mounted on the throttle shaft component 4 through these mounting holes 421. In practice, the throttle plate 5 can be integrally mounted on the throttle shaft component 4 based on the spacing of the mounting holes.

[0072] In summary, the dual-chamber, dual-gas supply system disclosed herein comprises two independent gas supply chambers 10 within a main body 1. Each gas supply chamber 10 includes a parallel main channel 11 and an idle channel 12. The main channel 11 is equipped with a main metering orifice 112A and a first air supply orifice 11A, which communicate with the main nozzle 111. The main nozzle 111 is provided with straight holes 111A and transverse holes 111B arranged in different directions. These multiple through-holes work together to control the flow rate of air flowing into the main channel 11. In addition to the pipelines, the idle channel 12 is equipped with an idle metering orifice 121B and a second air supply orifice 12B. These multiple through-holes work together to control the flow rate of air flowing into the idle channel 12, ensuring a stable gas flow through the main and idle channels 11 and 12, thereby improving engine combustion efficiency and performance. By precisely controlling the position and connection of various components, this system achieves refined gas supply regulation, making it suitable for a variety of engine types and enhancing engine adaptability and reliability. In addition, the system has a compact overall structure and reasonable layout of components, which is easy to install and maintain, while ensuring the stability and durability of the system.

[0073] The above description is merely a detailed description and drawings of preferred specific embodiments of the present invention. However, the features of the present invention are not limited thereto and are not intended to limit the present invention. The full scope of the present invention shall be subject to the scope of the patent application. All embodiments that conform to the spirit of the patent application of the present invention and similar variations thereof shall be included in the scope of the present invention. Any changes or improvements that can be easily conceived by any person of ordinary skill in the art who is familiar with the technology within the scope of the present invention shall be covered by the patent scope of the following case.

Claims

1. A dual-chamber dual-gas supply system, comprising a main body and an air inlet pipe, characterized in that: Two independent gas supply chambers are provided inside the body, each gas supply chamber is connected to the intake pipe, and each gas supply chamber includes a main channel and an idle channel in parallel, wherein: The main channel includes a main nozzle and a first adapter. The main nozzle is mounted on the first adapter. The first adapter is provided with a main metering orifice in communication with the main nozzle for controlling the flow rate of air flowing into the main channel. The idle passage includes a second adapter. An idle metering hole is provided inside the second adapter for controlling the flow rate of air flowing into the idle passage.

2. The system according to claim 1, wherein: The main nozzle is provided with a straight hole connected along a first direction and at least one transverse hole connected along a second direction. The first direction is perpendicular to the second direction. The straight hole and the at least one transverse hole are both connected to the main metering orifice.

3. The system according to claim 2, characterized in that A first air supply hole is provided on the outer wall of the main channel. The first air supply hole is connected with the straight hole, the at least one transverse hole and the main metering hole to throttle the airflow passing through the main channel.

4. The system according to claim 1, wherein: A second air supply hole is provided on the outer wall of the idle passage, and the second air supply hole is communicated with the idle metering hole to throttle the air flow passing through the idle passage.

5. The system according to claim 1, wherein: An aperture adjustment member is provided on the periphery of the main metering orifice and / or the idle metering orifice for adjusting the size of the aperture.

6. The system according to claim 1, wherein: It also includes a throttle shaft component installed on the shell, a throttle plate is installed on the throttle shaft component, and the throttle plate covers the throat of the gas supply chamber.

7. The system according to claim 6, characterized in that The throttle shaft component includes an adjusting shaft, and the adjusting shaft is mounted on a throttle opening adjusting screw. The throttle opening adjusting screw is used to adjust the opening of the throttle plate to control the amount of air entering the engine.

8. The system according to claim 6, wherein: The throttle shaft component further includes a mounting portion, on which a plurality of mounting holes are distributed, and the throttle plate is mounted on the throttle shaft component through the mounting holes.

9. The system according to claim 7, wherein: It further includes a stepper motor, which is connected to the adjustment shaft of the throttle shaft component. The adjustment shaft is driven by the stepper motor to rotate forward and reverse to control the opening of the throttle plate.

10. The system according to claim 9, characterized in that The stepper motor is fixed to the housing via a motor mounting plate.

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