Fuel gas and fuel oil supply system

Abstract

The utility model discloses a fuel gas and fuel oil supply system which comprises a body, a gas inlet pipe, a throttle valve and a mixing chamber, the mixing chamber is arranged in the body and communicated with the gas inlet pipe, fuel gas enters the mixing chamber through the gas inlet pipe, the throttle valve is arranged in the mixing chamber, and the mixing chamber is communicated with the gas inlet pipe. The air inlet pipe is arranged on the idling system side of the body through an air inlet pipe mounting hole, one end of the air inlet pipe mounting hole is communicated with the front end of the throttle valve, and the other end of the air inlet pipe mounting hole is communicated with the air inlet pipe. According to the fuel gas and fuel oil system, the gas inlet pipe is arranged on the idling system side of the body, and the selection diversity of the development space layout of an engine is increased.

Description

Technical Field

[0001] The utility model relates to a gas and fuel oil supply system. Background Art

[0002] Currently, many engines are being developed towards large-displacement, small-volume structures. The overall spatial layout needs to be met in a variety of forms. However, the gas intake pipe of the existing engine gas and fuel supply system is generally set at the upper end of the body, which limits the diversity of options for the overall spatial layout of the engine. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a gas and fuel supply system in which the intake pipe is installed on the idle system side, thereby increasing the diversity of options for the overall spatial layout of the engine.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present utility model provides a gas and fuel supply system, including a main body, an intake pipe, a throttle and a mixing chamber, the mixing chamber is arranged in the main body and is connected to the intake pipe, the gas enters the mixing chamber through the intake pipe, the throttle is arranged in the mixing chamber, the intake pipe is arranged on the idle system side of the main body through the intake pipe mounting hole, one end of the intake pipe mounting hole is connected to the front end of the throttle, and the other end is connected to the intake pipe.

[0005] The idle system side is located on the left side and / or the right side of the body.

[0006] Furthermore, the gas and fuel supply system further includes a main air intake hole provided in the main body, wherein the main air intake hole is connected to the front end of the throttle valve and the intake pipe mounting hole.

[0007] Furthermore, the gas and fuel supply system also includes an air supply hole, which is connected to the main air intake hole and the rear end of the throttle valve.

[0008] Furthermore, the mixing chamber is provided with a plurality of air-injection holes on one side of the rear end of the throttle valve, the plurality of air-injection holes are connected to the air-injection hole, and the diameter of each of the air-injection holes is smaller than the diameter of the air-injection hole.

[0009] Furthermore, the gas and fuel supply system also includes a copper ball, which is arranged at the opening of the gas supply hole to prevent the gas in the gas supply hole from venting into the atmosphere.

[0010] Furthermore, the gas and fuel supply system further includes a throttle and a throttle shaft component, wherein the throttle shaft component is arranged on the main body through a throttle shaft mounting hole, and the throttle is mounted on the throttle shaft component and accommodated in the mixing chamber.

[0011] Preferably, the throttle shaft component is provided with a first mounting hole, and the throttle is mounted on the first mounting hole by a fastening screw.

[0012] Preferably, the air intake pipe includes a connecting portion, the outer diameter of the connecting portion is smaller than the outer diameters of other portions of the air intake pipe, and the outer diameter of the connecting portion matches the inner diameter of the air intake pipe mounting hole.

[0013] The connecting portion is press-fitted into the intake pipe mounting hole.

[0014] From the above scheme, it can be seen that the advantages of the present invention are:

[0015] The gas and fuel system of the utility model arranges the intake pipe on the idle system side of the body by utilizing the intake pipe mounting hole, thereby increasing the selection diversity of the engine development space layout.

[0016] The gas and fuel oil system of the utility model is provided with an air supply hole and a plurality of air supply small holes, thereby improving the stability of the engine in an idling state.

[0017] In the gas and fuel oil system of the utility model, a copper ball is arranged at the orifice of the gas filling hole, which is used to block the orifice when gas needs to pass through the gas filling hole to prevent the gas from leaking into the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the gas and fuel supply system of the utility model;

[0019] Figure 2 This is a cross-sectional view of the gas and fuel supply system of the present utility model;

[0020] Figure 3 is a cross-sectional view of the body 11;

[0021] Figure 4 is a structural diagram of the air intake pipe 12;

[0022] Figure 5 is a structural diagram of the throttle valve 21;

[0023] Figure 6 is a structural diagram of the throttle shaft component 10;

[0024] Wherein, the reference numerals:

[0025] 1-Gas and fuel supply system;

[0026] 10-throttle shaft component;

[0027] 100-first mounting hole;

[0028] 11-Ontology;

[0029] L-left;

[0030] R-right side;

[0031] 12-intake pipe;

[0032] 120-connecting part;

[0033] 20-fastening screws;

[0034] 21-throttle valve;

[0035] 210-second mounting hole;

[0036] 22-copper ball;

[0037] 30-Throttle shaft mounting hole;

[0038] 31-mixing chamber;

[0039] 32-small hole for replenishing qi;

[0040] 33-air filling hole;

[0041] 330-orifice;

[0042] 34-main air intake;

[0043] 35-Intake pipe mounting hole. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0045] References in the specification to "an embodiment," "another embodiment," "this embodiment," etc., indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is understood that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0046] Certain terms are used in this specification and the subsequent claims to refer to specific components or parts. Those skilled in the art will understand that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and claims do not distinguish components or parts based on differences in name, but rather on differences in their function. Throughout this specification and claims, the terms "including" and "comprising" are open-ended and should be interpreted as meaning "including, but not limited to."

[0047] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "inside", "outside", etc. indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description content. They do not indicate or imply that the device or element referred to must have a specific direction, specific size, or be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0048] Reference Figures 1 to 6 ,in Figure 1 This is a structural diagram of a gas and fuel supply system 1 (hereinafter referred to as system 1) provided in an embodiment of the present utility model. Figure 2 This is a structural cross-sectional view of the gas and fuel supply system 1. Figure 3 is a cross-sectional view of the body, Figure 4 The structure diagram of the intake pipe is shown in Figure 2. Figure 5 The throttle structure diagram is shown in Figure 2. Figure 6 This is a structural diagram of the throttle shaft components.

[0049] The system 1 includes a main body 11, an intake pipe 12, a throttle valve 21, and a mixing chamber 31. Specifically, the mixing chamber 31 is disposed within the main body 11 and communicates with the intake pipe 12. Gas, such as natural gas, enters the mixing chamber 31 through the intake pipe 12. The throttle valve 21 is disposed within the mixing chamber 31. The composition, structure, relative positional relationships, connection relationships, and functions of the other components of the gas and fuel supply system are all relatively mature existing technologies and are not described in detail here. The following describes in detail only the components and structures that distinguish this application from the existing technology. The main difference between this gas and fuel supply system and the existing technology is that the intake pipe 12 is disposed on the idle system side of the main body 11 through an intake pipe mounting hole 35. Specifically, the intake pipe mounting hole 35 is disposed on the idle system side of the main body 11. The intake pipe 12 is detachably mounted in the intake pipe mounting hole 35 by a press-fit process, threaded connection, or other means. One end of the intake pipe mounting hole 35 communicates with the front end of the throttle valve 21, and the other end communicates with the intake pipe 12.

[0050] In some embodiments, the idle side refers to one side of the idle passage of system 1, located on the left side L and / or right side R of body 11. The idle passage includes a combination of an idle air passage, an idle fuel supply passage, an idle fuel-air mixture supply passage, a transition hole, and the like. The structure, location, and function of the idle passage are well-established in the prior art and are not further described here. Figures 1 to 3 The air intake pipe 12 and the air intake pipe mounting hole 35 are both located on the left side L of the body 11, but the present invention is not limited thereto.

[0051] In some embodiments, such as Figure 2 and Figure 4 As shown, Figure 4 The structure of the intake pipe 12 includes a connecting portion 120. The outer diameter of the connecting portion 120 is smaller than the outer diameter of other parts of the intake pipe 12, and the outer diameter of the connecting portion 120 matches the inner diameter of the intake pipe mounting hole 35, so that the connecting portion 120 can be connected to the intake pipe mounting hole 35 through a press-fitting process.

[0052] The utility model increases the diversity of choices for the overall spatial layout of the engine by installing the air intake pipe 12 on the idle system side of the body 11.

[0053] In some embodiments, the gas and fuel supply system 1 further includes a main air intake aperture 34 disposed within the body 11. This main air intake aperture 34 connects to the front end of the throttle valve 21 and the intake pipe mounting aperture 35. Specifically, the main air intake aperture 34 is a through-hole that directly connects to the main channel (not shown) of the system 1, which in turn connects to the mixing chamber 31. The structure, location, and function of the main channel are well-established in the prior art and are not described in detail here.

[0054] In some embodiments, the gas and fuel supply system 1 further includes an air supply hole 33 , which connects the main air inlet hole 34 and the rear end of the throttle valve 21 , and is used to provide gas when the throttle valve 21 is opened very slightly.

[0055] In some embodiments, the mixing chamber 31 is located at the rear end of the throttle valve 21 and has multiple air supply holes 32 . The multiple air supply holes 32 are connected to the air supply hole 33 , and the diameter of each air supply hole 32 is smaller than the diameter of the air supply hole 33 . Figure 2 and Figure 3 In the embodiment, the number of the air-infusing holes 32 is two, but the present invention is not limited thereto.

[0056] Preferably, the axis of the air-injection hole 32 is perpendicular to the axis of the air-injection hole 33 and parallel to the axis of the air-intake pipe mounting hole 35. Specifically, the air-injection hole 35 is connected to the main air-injection hole 34, the air-injection hole 33 is arranged horizontally, and the axis of the air-injection hole 33 is parallel to the transverse axis of the mixing chamber 31. The air-injection hole 32 is vertically provided on one side of the inner wall of the mixing chamber 31 and connected to the air-injection hole 33. In other embodiments, the air-injection hole 32 may not be perpendicular to the air-injection hole 33 or the inner wall of the mixing chamber 31, and the axis of the air-injection hole 33 may not be parallel to the transverse axis of the mixing chamber 31.

[0057] Specifically, when the engine is operating normally, the gas enters the mixing chamber 31 through the intake pipe 12, the intake pipe mounting hole 35, and the main intake hole 34, mixes with the air, and is then sucked into the engine through the throttle 21; when the engine is idling, the throttle 21 is opened very small or completely closed, and the gas passes through the intake pipe 12, the intake pipe mounting hole 35, the air supply hole 33, and the air supply hole 32 into the rear end of the throttle 21 in the mixing chamber 31, mixes with the air, and is then sucked into the engine, thereby meeting the gas intake amount of the engine and improving the stability of the engine.

[0058] In some embodiments, the gas and fuel supply system 1 further includes a copper ball 22, which is arranged at the orifice 330 of the gas supply hole 33 by a press-fitting process, and is used to block the orifice when the gas enters the gas supply hole 32 through the gas supply hole 33, thereby preventing the gas from leaking into the atmosphere.

[0059] In some embodiments, such as Figure 6 As shown, the gas and fuel supply system 1 further includes a throttle shaft component 10 , which is disposed on the body 11 through a throttle shaft mounting hole 30 . The throttle valve 21 is mounted on the throttle shaft component 10 and accommodated in a mixing chamber 31 .

[0060] Specifically, if Figures 5 and 6 As shown, a throttle shaft mounting hole 30 is provided at the upper end of the body 11 and communicates with a mixing chamber 31. One end of the throttle shaft component 10 is inserted into the mixing chamber 31 through the throttle shaft mounting hole 30, and the other end of the throttle shaft component 10 is engaged with the outside of the throttle shaft mounting hole 30. The throttle shaft component 10 defines a first mounting hole 100, and the throttle valve 21 defines a second mounting hole 210. The fastening screw 20 passes through the second mounting hole 210 and the first mounting hole 100 to mount the throttle valve 21 on the throttle shaft component 10. The engine controls the opening of the throttle valve 21 through the throttle shaft component 10.

[0061] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A gas and fuel supply system, comprising a body, an intake pipe, a throttle valve, and a mixing chamber, wherein the mixing chamber is arranged in the body and communicates with the intake pipe, the gas enters the mixing chamber through the intake pipe, and the throttle valve is arranged in the mixing chamber, characterized in that: The intake pipe is arranged on the idle system side of the body through an intake pipe mounting hole. One end of the intake pipe mounting hole is connected to the front end of the throttle valve, and the other end is connected to the intake pipe.

2. The gas and fuel supply system according to claim 1, characterized in that: The idle system side is located on the left side and / or the right side of the body.

3. The gas and fuel supply system according to claim 1, characterized in that: It also includes a main air intake hole arranged in the main body, and the main air intake hole is connected to the front end of the throttle valve and the intake pipe mounting hole.

4. The gas and fuel supply system according to claim 3, characterized in that: It also includes an air supply hole, which is connected to the main air intake hole and the rear end of the throttle valve.

5. The gas and fuel supply system according to claim 4, characterized in that: The mixing chamber is located at one side of the rear end of the throttle valve and is provided with a plurality of air-injection holes, the plurality of air-injection holes are connected to the air-injection hole, and the diameter of each of the air-injection holes is smaller than the diameter of the air-injection hole.

6. The gas and fuel supply system according to claim 4, characterized in that: It also includes a copper ball, which is arranged at the opening of the gas replenishing hole.

7. The gas and fuel supply system according to any one of claims 1 to 6, characterized in that: It also includes a throttle shaft component, which is arranged on the body through a throttle shaft mounting hole. The throttle is mounted on the throttle shaft component and is accommodated in the mixing chamber.

8. The gas and fuel supply system according to claim 7, characterized in that: The throttle shaft component defines a first mounting hole, and the throttle is mounted on the first mounting hole by a fastening screw.

9. The gas and fuel supply system according to any one of claims 1 to 6, characterized in that: The air intake pipe includes a connecting portion, the outer diameter of the connecting portion is smaller than the outer diameters of other portions of the air intake pipe, and the outer diameter of the connecting portion matches the inner diameter of the air intake pipe mounting hole.

10. The gas and fuel supply system according to claim 9, characterized in that: The connecting portion is press-fitted into the air intake pipe mounting hole.

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