Double-cavity carburetor with stable idle speed

Abstract

The utility model provides a double-cavity carburetor with stable idling, which relates to the field of double-cavity carburetors and comprises a double-cavity carburetor body, a throttle chamber is arranged at the front end of the double-cavity carburetor body, a throttle valve is mounted on the inner side of the throttle chamber, and a dust cleaning plate frame is sleeved on the front cavity surface of the throttle chamber. A filter screen plate is fixed to the front surface of the dust cleaning plate frame, a pressurizing fan is installed on the end face of the outer side of the dust cleaning plate frame, a dust blowing vertical plate is connected to the inner side of the dust cleaning plate frame through an adjusting screw rod, an air supply pipe is connected to the front side of the pressurizing fan, and the air supply pipe is connected with the dust blowing vertical plate through an air inlet hose. And exhaust holes are formed in the front surface of the dust blowing vertical plate at equal intervals. The double-cavity carburetor solves the problem that too much carbon and dirt are deposited on the throttle valve of the double-cavity carburetor, so that the sectional area of an air channel of the carburetor is changed, and the idling air inflow is not stable.

Description

Technical Field

[0001] This utility model relates to the technical field of dual-chamber carburetors, specifically to a dual-chamber carburetor with stable idling speed. Background Technology

[0002] A carburetor is a mechanical device that mixes gasoline and air in a specific ratio under the vacuum generated by the engine. A dual-chamber carburetor uses two independent chambers to control different engine operating states, thereby improving engine performance and efficiency. A dual-chamber carburetor typically consists of two chambers that operate the throttle valve synchronously via a linkage, ensuring coordinated operation. However, excessive carbon buildup and dirt at the throttle valve of a dual-chamber carburetor can alter the cross-sectional area of ​​the air passage, leading to unstable intake air volume at idle. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a dual-chamber carburetor with stable idling speed is provided to solve the problem that excessive carbon deposits and dirt at the throttle valve of the dual-chamber carburetor can cause changes in the cross-sectional area of ​​the carburetor's air passage, thereby affecting the unstable intake air volume at idle speed.

[0004] To achieve the above objectives, a dual-chamber carburetor with stable idling speed is provided, comprising: a dual-chamber carburetor body, wherein a throttle chamber is provided at the front end of the dual-chamber carburetor body, and a throttle valve is installed inside the throttle chamber.

[0005] A dust removal plate frame is fitted onto the front cavity surface of the throttle chamber. A filter screen is fixed on the front surface of the dust removal plate frame. A booster fan is installed on the outer end face of the dust removal plate frame. A dust blowing vertical plate is connected to the inner side of the dust removal plate frame through an adjusting screw. An air supply pipe is connected to the front side of the booster fan. The air supply pipe is connected to the dust blowing vertical plate through an air intake hose. Exhaust holes are equidistantly opened on the front surface of the dust blowing vertical plate.

[0006] Furthermore, the upper part of the dual-chamber carburetor body is provided with a fuel injection chamber, and the throat pipe and air manifold are distributed on both sides of the middle part of the dual-chamber carburetor body.

[0007] Furthermore, the dual-chamber carburetor body has two sets of throttle chambers symmetrically distributed on the front side; and an adjusting stud is installed between the two sets of throttle chambers.

[0008] Furthermore, a connecting ring plate is welded to the rear end face of the dust removal plate frame, and the dust removal plate frame is fixedly connected to the outer wall of the throttle chamber through the connecting ring plate.

[0009] Furthermore, an adjusting screw is installed on the inner side of the upper end of the dust removal plate frame, and a dust blowing vertical plate is connected to the surface of the adjusting screw through a driving block; and the driving block is fixed at the rear end of the dust blowing vertical plate.

[0010] Furthermore, a sealing strip is provided at the lower end of the dust removal plate frame slot, and a small motor is shaft-connected to one side of the adjusting screw; the small motor is located above the booster fan.

[0011] Furthermore, an air guide cavity is provided on the inner side of the dust blowing vertical plate, and the air inlet hose is connected to the exhaust port through the air guide cavity.

[0012] The beneficial effects of this utility model are as follows: the dual-chamber carburetor with stable idling speed utilizes a dust removal plate frame installed at the throttle valve chamber opening. The filter screen on the surface of the dust removal plate frame filters the intake air before it enters the mixing channel of the carburetor. By periodically adjusting the screw, the dust blowing vertical plate is driven to move back and forth, causing the dust blowing vertical plate to discharge the pressurized airflow delivered by the supercharger fan to the filter screen, removing carbon deposits and dirt adhering to the filter screen. This effectively prevents carbon deposits and dirt at the throttle valve from affecting the change in the cross-sectional area of ​​the air passage of the dual-chamber carburetor, ensuring that the control unit of the dual-chamber carburetor accurately controls the idle air intake based on the cross-sectional area of ​​the air passage, thus ensuring a more stable idle speed for the dual-chamber carburetor. Attached Figure Description

[0013] Figure 1 This is a front view of the dual-chamber carburetor with stable idling speed according to an embodiment of the present invention.

[0014] Figure 2 This is a partial cross-sectional structural diagram of the dust removal plate frame according to an embodiment of the present utility model.

[0015] Figure 3 This is a side view sectional structural diagram of the dust removal plate frame according to an embodiment of the present utility model.

[0016] Figure 4 This is a side view sectional structural diagram of the dust blowing vertical plate according to an embodiment of the present utility model.

[0017] In the diagram: 1. Dual-chamber carburetor body; 11. Throat pipe; 12. Injection chamber; 13. Air manifold; 14. Adjusting stud; 15. Throttle chamber; 16. Throttle valve; 2. Dust removal plate frame; 21. Filter screen; 22. Small motor; 23. Adjusting screw; 24. Sealing strip; 25. Drive block; 26. Connecting ring plate; 3. Booster fan; 31. Air supply pipe; 4. Dust blowing vertical plate; 41. Intake hose; 42. Exhaust port; 43. Air guide chamber. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a dual-chamber carburetor with stable idling speed, comprising: a dual-chamber carburetor body 1, a throttle chamber 15 disposed at the front end of the dual-chamber carburetor body 1, and a throttle valve 16 installed inside the throttle chamber 15.

[0019] A dust removal plate frame 2 is fitted onto the front cavity surface of the throttle chamber 15. A filter screen plate 21 is fixed on the front surface of the dust removal plate frame 2. A booster fan 3 is installed on the outer end face of the dust removal plate frame 2. A dust blowing vertical plate 4 is connected to the inner side of the dust removal plate frame 2 via an adjusting screw 23. An air supply pipe 31 is connected to the front side of the booster fan 3. The air supply pipe 31 is connected to the dust blowing vertical plate 4 via an air intake hose 41. Exhaust holes 42 are equidistantly opened on the front surface of the dust blowing vertical plate 4.

[0020] A dust removal plate frame 2 is installed at the throttle valve chamber opening of the dual-chamber carburetor body 1. The filter screen 21 on the surface of the dust removal plate frame 2 filters the intake air before it enters the mixing channel of the carburetor. By adjusting the screw 23 periodically driving the dust blowing vertical plate 4 to move back and forth, the dust blowing vertical plate 4 discharges the pressurized airflow delivered by the booster fan 3 to the filter screen 21, removing the carbon deposits and dirt attached to the screen 21. This effectively prevents carbon deposits and dirt at the throttle valve from affecting the change of the cross-sectional area of ​​the air passage of the dual-chamber carburetor, ensuring that the control unit of the dual-chamber carburetor accurately controls the idle intake air volume according to the cross-sectional area of ​​the air passage, and ensuring that the idle speed of the dual-chamber carburetor is more stable.

[0021] In this embodiment, the upper part of the dual-chamber carburetor body 1 is provided with a fuel injection chamber 12, and the throat pipe 11 and the air manifold 13 are distributed on both sides of the middle part of the dual-chamber carburetor body 1. Two sets of throttle chambers 15 are symmetrically distributed on the front side of the dual-chamber carburetor body 1; and an adjusting stud 14 is installed between the two sets of throttle chambers 15.

[0022] In a preferred embodiment, the injection chamber 12 stores a certain amount of gasoline to ensure a continuous fuel supply to the carburetor. The throttle valve 16 is adjustable and used to control the airflow through the carburetor. The throttle 11 generates suction, and the air manifold 13 mixes the atomized fuel and air and delivers it into the cylinder. The specific working principle and component composition of the dual-chamber carburetor body 1 are existing mature technologies and will not be elaborated further.

[0023] In this embodiment, a connecting ring plate 26 is welded to the rear end face of the dust cleaning plate frame 2, and the dust cleaning plate frame 2 is fixedly connected to the outer wall of the throttle chamber 15 through the connecting ring plate 26. An adjusting screw 23 is installed on the inner side of the upper end of the dust cleaning plate frame 2, and a dust blowing vertical plate 4 is connected to the surface of the adjusting screw 23 through a drive block 25; and the drive block 25 is fixed at the rear end of the dust blowing vertical plate 4. A sealing plug 24 is sealed at the slot at the lower end of the dust cleaning plate frame 2, and a small motor 22 is shaft-connected to one side end of the adjusting screw 23; and the small motor 22 is located above the booster fan 3.

[0024] In a preferred embodiment, the booster fan 3 and the small motor 22 are controlled by a small controller (not shown in the figure) to start or stop. The drive block 25 converts the rotational motion of the adjusting screw 23 into linear motion, thereby driving the dust blowing vertical plate 4 to move left and right to blow dust off the filter screen 21. The booster fan 3 facilitates the delivery of pressurized gas to the dust blowing vertical plate 4 for discharge.

[0025] In this embodiment, an air guide cavity 43 is provided on the inner side of the dust blowing vertical plate 4, and the air inlet hose 41 is connected to the exhaust port 42 through the air guide cavity 43.

[0026] As a preferred implementation, the intake hose 41 discharges the pressurized gas supplied by the booster fan 3 through the exhaust port 42 on the front side of the dust blowing vertical plate 4, and blows the dust into and out of the filter screen 21 in front of the dust blowing vertical plate 4, so as to remove the carbon deposits and dirt attached to the screen and facilitate the normal flow of gas.

[0027] This utility model of a dual-chamber carburetor with stable idling speed effectively solves the problem that excessive carbon deposits and dirt at the throttle valve of a dual-chamber carburetor can cause changes in the cross-sectional area of ​​the carburetor's air passage, thus affecting the unstable idling intake volume. It effectively prevents carbon deposits and dirt at the throttle valve from affecting the changes in the cross-sectional area of ​​the air passage of the dual-chamber carburetor, ensuring that the control unit of the dual-chamber carburetor can accurately control the idling intake volume according to the cross-sectional area of ​​the air passage, thus ensuring a more stable idling speed for the dual-chamber carburetor. It is suitable for dual-chamber carburetors with stable idling speed.

Claims

1. A dual-chamber carburetor with stable idle speed, comprising: A dual-chamber carburetor body (1), wherein a throttle chamber (15) is provided at the front end of the dual-chamber carburetor body (1), and a throttle valve (16) is installed inside the throttle chamber (15), characterized in that: The front cavity of the throttle chamber (15) is fitted with a dust removal plate frame (2), and a filter screen plate (21) is fixed on the front surface of the dust removal plate frame (2). A booster fan (3) is installed on the outer end face of the dust removal plate frame (2). A dust blowing vertical plate (4) is connected to the inner side of the dust removal plate frame (2) through an adjusting screw (23). An air supply pipe (31) is connected to the front side of the booster fan (3). The air supply pipe (31) is connected to the dust blowing vertical plate (4) through an air intake hose (41). Exhaust holes (42) are equidistantly opened on the front surface of the dust blowing vertical plate (4).

2. The dual-chamber carburetor with stable idle speed according to claim 1, characterized in that, The upper part of the dual-chamber carburetor body (1) is provided with an injection chamber (12), and the throat pipe (11) and the air manifold (13) are distributed on both sides of the middle part of the dual-chamber carburetor body (1).

3. The dual-chamber carburetor with stable idle speed according to claim 1, characterized in that, The dual-chamber carburetor body (1) has two sets of throttle chambers (15) symmetrically distributed on the front side; and an adjusting stud (14) is installed between the two sets of throttle chambers (15).

4. A dual-chamber carburetor with stable idle speed according to claim 1, characterized in that, The dust removal plate frame (2) is welded with a connecting ring plate (26) on its rear end face. The dust removal plate frame (2) is fixedly connected to the outer wall of the throttle chamber (15) through the connecting ring plate (26).

5. A dual-chamber carburetor with stable idling speed according to claim 1, characterized in that, An adjusting screw (23) is installed on the inner side of the upper end of the dust removal plate frame (2). The surface of the adjusting screw (23) is connected to the dust blowing vertical plate (4) through the driving block (25); and the driving block (25) is fixed at the rear end of the dust blowing vertical plate (4).

6. A dual-chamber carburetor for stable idling according to claim 5, characterized in that, The lower end of the dust removal plate frame (2) is sealed with a sealing strip (24), and a small motor (22) is shaft-connected to one side of the adjusting screw (23); and the small motor (22) is located above the booster fan (3).

7. A dual-chamber carburetor for stable idling according to claim 1, characterized in that, The dust blowing vertical plate (4) has an air guide cavity (43) on its inner side, and the air inlet hose (41) is connected to the exhaust port (42) through the air guide cavity (43).

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