CN214063159U

CN214063159U - Air inlet pipe structure of dual-fuel carburetor

Info

Publication number: CN214063159U
Application number: CN202023073729.1U
Authority: CN
Inventors: 谢安源; 刘波; 卢劲波; 向根
Original assignee: Chongqing Ampride Power & Machinery Co ltd
Current assignee: Chongqing Ampride Power & Machinery Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-27
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a dual-fuel carburetor air inlet pipe structure, which comprises a carburetor body, wherein a mixing chamber is formed in an internal channel of the carburetor body, an air inlet pipe is arranged on the carburetor body, and the air inlet pipe is communicated with the mixing chamber; the carburetor body is also provided with a throttle valve, and the throttle valve is positioned on one side of the mixing chamber channel; the inlet section of the air supplementing pipe is connected with a flow hole plug, and the flow hole plug is used for controlling the air inlet flow. The beneficial effects of the utility model are that, be connected with the metering orifice stopper control air intake flow at the entrance of air supplement pipe to can be according to the different operating mode and the altitude of engine, change the purpose of the metering orifice of different models in order to reach accurate regulation air intake flow, make the engine provide suitable gas mixture concentration under the operating mode of difference, make engine dynamic property and economic nature promote.

Description

Air inlet pipe structure of dual-fuel carburetor

Technical Field

The utility model relates to a carburetor field, especially a dual fuel carburetor inlet tube structure.

Background

The carburetor is a mechanical device which mixes gasoline and air in a certain proportion under the action of vacuum generated by the operation of an engine. The complete carburetor device includes a starter, an idling device, a medium load device, a full load device and an accelerator. The carburetor can automatically match corresponding concentration according to different working state requirements of the engine and output corresponding amount of mixed gas, and in order to enable the mixed gas to be uniformly mixed, the carburetor also has the effect of atomizing fuel oil so as to enable the engine to normally run.

The working condition of the engine is required to be changed within a large range, for example, the engine runs at an idle speed, the load is zero, the opening degree of an accelerator is minimum, and the rotating speed is minimum; if the engine may be at full load, the speed may be maximized. In the normal working state of the gasoline engine, the carburetor is required to supply the mixed gas which is gradually changed from rich to lean along with the increase of the load under the conditions of small load and medium load, and the mixed gas is required to be changed from lean to rich under the full load, so that the gasoline engine cannot be satisfied by a simple carburetor.

Disclosure of Invention

The utility model aims at providing a dual fuel carburetor intake-tube structure is in order to solve above-mentioned problem to the carburetor can not satisfy and can supply with along with the load increases by the more dense gas mixture that becomes thin gradually, can not satisfy the gas mixture under full load by the problem of rare dense when little, medium load.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

An air inlet pipe structure of a dual-fuel carburetor comprises a carburetor body, wherein a mixing chamber is formed in an internal channel of the carburetor body, an air inlet pipe is arranged on the carburetor body, and the air inlet pipe is communicated with the mixing chamber; the carburetor body is also provided with a throttle valve, and the throttle valve is positioned on one side of the mixing chamber channel; the inlet section of the air inlet pipe is connected with a flow hole plug, and the flow hole plug is used for controlling the flow of inlet air.

Adopt aforementioned technical scheme the utility model discloses, be connected with the volume stopple at the entrance of intake pipe, the volume stopple is used for controlling air intake flow. The structure controls the air input through the hole plug, provides proper mixed gas concentration for the engine under different working conditions, and improves the dynamic property and the economical efficiency of the engine; meanwhile, the dual-fuel power gas emission and the consistency of the gas power are effectively controlled.

Preferably, the metering hole plug is provided with a metering hole which penetrates through the metering hole plug in the axial direction. The air inflow of the fuel gas is controlled by arranging the metering orifices so as to control the concentration of the mixed gas.

Preferably, the measuring hole is provided with a plurality of sizes, and the measuring hole can be provided as a round hole or a polygonal hole. The metering orifices of different sizes are used for engine working conditions with different air inflow.

Preferably, the metering hole plug is further provided with a nut and a sealing surface matched with the end face of the air inlet pipe, and the sealing surface is arranged on one surface, close to the threads, of the nut. And a gasket is arranged between the sealing surface air inlet pipe and the end surface matching part of the nut and the air inlet pipe to prevent gas leakage at the connecting part.

Preferably, the inlet section of the air inlet pipe is provided with an internal thread. The inlet section of the air inlet pipe is provided with internal threads to be connected and matched with the metering hole plug.

Preferably, the metering orifice plug is provided with an external thread matched with the internal thread. The metering orifice plug is provided with an external thread matched with the internal thread to be matched with the inlet section of the air inlet pipe.

Preferably, the external thread on the metering orifice plug and the internal thread on the inlet section of the air inlet pipe are both M5x0.8. The screw thread on the metering hole plug is set to be M5x0.8 to be matched with the internal screw thread on the inlet section of the air inlet pipe.

Preferably, the carburetor body is further provided with an oil inlet nozzle and communicated with the mixing chamber of the carburetor body. An oil inlet nozzle is arranged on the carburetor body to provide fuel oil to the mixing chamber to be mixed with air.

The beneficial effects of the utility model are that, be connected with the volume hole stopper at the entrance of intake pipe, the volume hole of volume hole stopper is used for controlling the air intake flow to set up sealed face on the volume hole stopper and prevent that the gas from leaking in the junction. The metering orifice stopper convenient to detach in this structure can be according to the different operating modes and the height above sea level of engine, changes the metering orifice of different models in order to reach the purpose of accurate regulation air intake flow, makes the engine provide suitable gas mixture concentration under the operating mode of difference, makes engine dynamic nature and economic nature promote.

Drawings

FIG. 1 is a structural diagram of the dual fuel carburetor intake tube structure of the present invention;

fig. 2 is a structural diagram of a metering orifice plug of the intake pipe structure of the dual fuel carburetor of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, which are not intended to limit the scope of the embodiments described herein.

The reference numbers in the specification include: the air inlet pipe 1, the metering orifice plug 2, the metering orifice 21, the sealing surface 23, the screw cap 22, the oil inlet nozzle 3, the throttle valve 4 and the carburetor body 5.

Referring to fig. 1, an air inlet pipe structure of a dual-fuel carburetor includes a carburetor body 5, a mixing chamber is formed in an internal channel of the carburetor body 5, an air inlet pipe 1 is arranged on the carburetor body 5, and the air inlet pipe 1 is communicated with the mixing chamber; the carburetor body is also provided with a throttle valve 4, and the throttle valve 4 is positioned on one side of the mixing chamber channel; the inlet section of the air inlet pipe is connected with a flow hole plug 2, and the flow hole plug 2 is used for controlling the flow of inlet air.

Referring to fig. 1 and 2, the orifice plug is provided with an orifice 21 which penetrates through the orifice plug in the axial direction. The measuring hole 21 is provided with various sizes, and the measuring hole 21 can be provided as a circular hole or a polygonal hole. The inlet section of the air inlet pipe 1 is provided with internal threads. And the hole measuring plug 2 is provided with an external thread matched with the internal thread. The external thread on the hole plug 2 and the internal thread at the inlet section of the air inlet pipe are both M5x0.8. The hole measuring plug 2 is further provided with a nut 22 and a sealing surface 23 matched with the end surface of the air inlet pipe 1, and the sealing surface 23 is arranged on the surface, close to the threads, of the nut 22. The carburetor body 5 is also provided with an oil inlet nozzle 3 and communicated with a mixing chamber of the carburetor body 5.

In this example, the connecting thread between gauge hole stopper 2 and the intake pipe 1 entrance can adopt the sealed effect of toper threaded connection good, still can set into the outside of the internal thread intake pipe 1 entrance with gauge hole stopper 2 simultaneously and set up the external screw thread and make both mutually support.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The air inlet pipe structure of the dual-fuel carburetor is characterized by comprising a carburetor body (5), wherein a mixing chamber is formed in an internal channel of the carburetor body (5), an air inlet pipe (1) is arranged on the carburetor body (5), and the air inlet pipe (1) is communicated with the mixing chamber; the carburetor body is also provided with a throttle valve (4), and the throttle valve (4) is positioned on one side of the mixing chamber channel; the inlet section of the air inlet pipe (1) is connected with a flow hole plug (2), and the flow hole plug (2) is used for controlling the air inlet flow.

2. The dual fuel carburetor intake pipe structure according to claim 1, wherein the orifice plug is provided with an orifice (21) that extends axially therethrough.

3. The dual fuel carburetor intake pipe structure according to claim 1, wherein the metering orifice (21) is provided in a plurality of sizes, and the metering orifice (21) is provided as a circular hole or a polygonal hole.

4. The dual-fuel carburetor intake pipe structure according to claim 1, characterized in that the metering hole plug (2) is further provided with a screw cap (22) and a sealing surface (23) matched with the end surface of the intake pipe (1), and the sealing surface (23) is arranged on the surface, close to the screw threads, of the screw cap (22).

5. A dual fuel carburetor intake pipe structure according to claim 1, characterized in that the inlet section of the intake pipe (1) is provided with an internal thread.

6. The dual fuel carburetor intake pipe structure according to claim 5, characterized in that the metering hole plug (2) is provided with an external thread which is matched with the internal thread.

7. The dual fuel carburetor intake pipe structure according to claim 6, characterized in that the external thread on the metering hole plug (2) and the internal thread of the intake pipe inlet section both adopt M5x0.8.

8. The dual-fuel carburetor intake pipe structure according to any one of claims 1 to 7, characterized in that the carburetor body (5) is further provided with an oil inlet nozzle (3) and communicated with a mixing chamber of the carburetor body (5).