Fuel oil and gas supply system
By designing an idle air injection port, an over-injection port, and a main combustion port in the fuel and gas supply system, and combining this with adjustments to the gas pipe and throttle shaft components, the problem of existing fuel and gas supply systems being unable to match various engine operating conditions has been solved, achieving a more rational gas supply.
Patent Information
- Application Number
- CN202520367092.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing fuel and gas supply system is difficult to reasonably match the needs of the engine under various operating conditions.
A fuel gas supply system was designed, which includes an idle air injection port, an over-air injection port, and a main gas port in the gas storage chamber. By adjusting the size and distance of each port, combined with the angle adjustment of the gas pipe and throttle shaft components, a reasonable gas supply can be achieved.
It achieves reasonable matching of fuel and gas supply system under different engine operating conditions, meeting the needs of various engine operating states.
Smart Images

Figure CN223621702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine fuel supply technology, and in particular to a fuel gas supply system. Background Technology
[0002] The task of the fuel supply system is to prepare a certain amount and concentration of combustible mixture according to the requirements of various engine operating conditions, supply it to the cylinder, so that it can be ignited and burned near the end of compression to expand and do work. Finally, the supply system should also discharge the combustion products - exhaust gas - into the atmosphere.
[0003] In order to better match the needs of various engine operating conditions, research on the improvement design of the fuel and gas supply system structure is very important. Utility Model Content
[0004] To address the shortcomings of the existing technology, this utility model provides a fuel oil / gas supply system, comprising:
[0005] The main body has a gas storage chamber; the upper cover covers the gas storage chamber; wherein the gas storage chamber has an idle air supply port and an over-air supply port.
[0006] In some embodiments, the idle air supply port includes an idle air supply process port and an idle air supply small port.
[0007] In some embodiments, a copper ball is installed at the opening of the idle air replenishment process hole.
[0008] In some embodiments, the gas storage chamber is also provided with a main gas port.
[0009] In some embodiments, the body is provided with a top cover fastening threaded hole, and the top cover is locked in the top cover fastening threaded hole by a top cover fastening screw.
[0010] In some embodiments, a gas storage chamber sealing ring is provided between the gas storage chamber and the main body, and a gas storage chamber sealing ring groove is provided on the main body, with the gas storage chamber sealing ring installed in the gas storage chamber sealing ring groove.
[0011] In some embodiments, the main body is provided with a gas pipe mounting hole, a gas pipe is installed in the gas pipe mounting hole, and the gas pipe is connected to the gas storage chamber.
[0012] In some embodiments, the upper cover is provided with a throttle shaft assembly for angle adjustment.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] The fuel and gas supply system provided by this utility model has a gas storage chamber on its main body. The storage chamber is equipped with an idle air replenishment port, an over-filling air replenishment port and a main air intake port, which can more reasonably match the different operating conditions of the engine. In this utility model, the storage chamber is provided with multiple gas ports. By adjusting the size and distance of each port, the requirements of various operating conditions of the engine can be more reasonably matched. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the fuel and gas supply system structure shown in an embodiment of the present invention. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the fuel and gas supply system structure shown in an embodiment of the present invention. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the main structure of the fuel and gas supply system shown in the embodiment of this utility model;
[0018] Figure 4 This is a schematic diagram of the upper cover structure shown in an embodiment of the present utility model;
[0019] Figure 5 This is a schematic diagram of the gas storage chamber sealing ring structure shown in an embodiment of the present invention;
[0020] Figure 6 This is a schematic diagram of the throttle shaft component shown in an embodiment of the present invention;
[0021] Figure 7 This is a schematic diagram of the copper ball structure shown in an embodiment of the present invention;
[0022] In the attached figures, the following labels are used:
[0023] 1-Ontology;
[0024] 11-Top cover fastening threaded hole;
[0025] 12 - Top cover fastening screws;
[0026] 13-Gas storage chamber sealing ring;
[0027] 14-Gas storage chamber sealing ring groove;
[0028] 2-Gas storage chamber;
[0029] 21-Excessive air supply orifice;
[0030] 22-Idle air injection process hole;
[0031] 23-Idle air injection hole;
[0032] 24 - Main gas vent;
[0033] 25- Bronze ball;
[0034] 3-Top cover;
[0035] 31-Throttle body shaft assembly;
[0036] 4-Gas pipe mounting hole;
[0037] 5-Gas pipe. Detailed Implementation
[0038] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of this utility model, but it is not intended to limit the scope of protection of the appended claims of this utility model.
[0039] The specification and subsequent claims use certain terms to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and subsequent claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and subsequent claims are open-ended and should be interpreted as "including but not limited to". Furthermore, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.
[0040] It should be noted that in the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", as well as "about", "approximately", "substantially", "left and right", etc., indicating the orientation or positional relationship or parameters, are all based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, a specific size, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] See Figure 1-7An embodiment of this utility model provides a fuel gas supply system, comprising: a body 1, on which a gas storage chamber 2 is provided; and a top cover 3, which covers the gas storage chamber 2; wherein the gas storage chamber 2 is provided with an idle speed replenishment port and an over-replenishment port, the idle speed replenishment port including an idle speed replenishment process port 22 and an idle speed replenishment small port 23, the over-replenishment port being an over-replenishment small port 21, and the gas storage chamber 2 is also provided with a main gas port 24; wherein a copper ball 25 is installed at the opening of the idle speed replenishment process port 22.
[0042] In this embodiment, the main body 1 is provided with a gas pipe mounting hole 4, a gas pipe 5 is installed in the gas pipe mounting hole 4, the gas pipe 5 is connected to the gas storage chamber 2, and the upper cover 3 is provided with a throttle shaft component 31 for angle adjustment.
[0043] In this embodiment, a gas storage chamber 2 is provided on the main body. The gas storage chamber 2 is provided with an idle speed injection hole 23, an over-injection hole 21 and a main gas hole 24. When the engine is running, the gas enters the gas storage chamber 2 through the gas pipe 5. By adjusting the angle of the throttle shaft component 31, different amounts of gas are drawn in to meet the needs of the engine.
[0044] Furthermore, in this embodiment, the main body 1 is provided with a top cover fastening threaded hole 11, and the top cover 3 is locked onto the top cover fastening threaded hole 11 using a top cover fastening screw 12. A gas storage chamber sealing ring 13 is provided between the gas storage chamber 2 and the main body 1, and a gas storage chamber sealing ring groove 14 is provided on the main body 1, and the gas storage chamber sealing ring 13 is installed in the gas storage chamber sealing ring groove 14.
[0045] In summary, the fuel-gas system provided in this embodiment features a gas storage chamber on its main body, within which are designed idle air injection ports, over-air injection ports, and main combustion ports, allowing for a more rational matching of different engine operating conditions. The size and distance of each port can be adjusted to better meet the engine's various operating requirements.
[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A fuel oil / gas supply system, characterized in that: include: The main body has a gas storage chamber; the upper cover covers the gas storage chamber; wherein the gas storage chamber has an idle air supply port and an over-air supply port.
2. The fuel oil / gas supply system according to claim 1, characterized in that: The idle air supply port includes an idle air supply process port and an idle air supply small port.
3. The fuel oil / gas supply system according to claim 2, characterized in that: A copper ball is installed at the opening of the idle air replenishment process hole.
4. The fuel oil / gas supply system according to claim 1 or 2, characterized in that: The gas storage chamber is also equipped with a main gas port.
5. The fuel oil / gas supply system according to claim 1, characterized in that: The main body is provided with a top cover fastening threaded hole, and the top cover is locked in the top cover fastening threaded hole by a top cover fastening screw.
6. The fuel oil / gas supply system according to claim 1, characterized in that: A gas storage chamber sealing ring is provided between the gas storage chamber and the main body, and a gas storage chamber sealing ring groove is provided on the main body, and the gas storage chamber sealing ring is installed in the gas storage chamber sealing ring groove.
7. The fuel oil / gas supply system according to claim 1, characterized in that: The main body is provided with a gas pipe mounting hole, and a gas pipe is installed in the gas pipe mounting hole. The gas pipe is connected to the gas storage chamber.
8. The fuel oil / gas supply system according to claim 1, characterized in that: The upper cover is equipped with a throttle shaft component for angle adjustment.