CN2711394Y

CN2711394Y - Carburetor for engine of motorcycle

Info

Publication number: CN2711394Y
Application number: CN 200420078021
Authority: CN
Inventors: 夏国清
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-22
Filing date: 2004-07-22
Publication date: 2005-07-20
Anticipated expiration: 2014-07-22

Abstract

The utility model relates to a carburetor for motorcycle engine, which is to provide well atomized burning mixture for the engine. The utility model mainly adopts that a restriction valve is installed in the main body, a nozzle is installed in a center hole C of the main body, and a main spraying pipe is connected with a compressing nozzle of the main body, while the utility model is characterized in that an air measuring hole An of the main body is tangential to the edge of the center hole C; a foam hole B on the main spraying pipe is tangential to the edge of a bore D, and the foam hole B on the main spraying pipe has an included angle as 0 DEG to 30 DEG with its shaft axis. The utility model has a simple, compact and reasonable structure; it can eliminate the disorder phenomenon of the air current in the main fuel system, so the air current mixes with the fuel in the same upward direction to form homogeneous foam fuel and air mixture, sizes of the fuel particle are homogeneous, and the fluid flow formed by the fuel sticking to the wall is reduced; the utility model can improve the process of the fuel atomizing, evaporating, and diffusing in the air to improve the burning quality of the engine, and the fuel burns sufficiently, in addition, the utility model can also improve engine power, reducing specific fuel consumption as well as exhaust pollution.

Description

The Carburetor of motorcycle engine

Technical field

The utility model relates to a kind of Carburetor of motorcycle engine, and being used for motor provides wellatomized inflammable mixture.

Background technique

Before the utility model was made, in prior art, the Carburetor of motorcycle engine mainly was made up of parts such as master, main body, lubricating cup, nozzle, main jet pipe, master control oil nozzle, throttle valve.The Carburetor of this kind structure makes fuel oil have the disorderly phenomenon of air draught in system's atomization process, air and fuel oil mix when aqueous forming foam-like oil gas, owing to be subjected to the influence of air turbulence, become big or small irregular foam-like, fuel oil can not evenly be smashed at the trunnion place, produces big or small uneven elaioleucite.Existence because of this phenomenon, in air and the proal together process of fuel particles, because the relation of inertial force and centrifugal force, the elaioleucite that diameter is bigger begins to be deposited on formation one deck oil film on the tube wall, especially more in air flue corner deposition, the part fuel oil is sticked to form liquid stream on the wall, influenced the effect that fuel oil atomizes, evaporates, spreads in air, reduced mixed gas quality.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, thereby provides a kind of simple, compact and reasonable for structure; Can eliminate main fuel system air air turbulence phenomenon, impel fuel oil evenly to disperse; Can improve the burning quality of motor, reduce fuel consumption rate, reduce the Carburetor of the motorcycle engine of exhaust pollution.

Main solution of the present utility model is achieved in that

The utility model mainly adopts throttle valve 3 to be installed in the main body 5, mounting spring 2 in throttle valve 3, master control spindle 4 is installed in throttle valve 3 lower ends, nozzle 6 is loaded in the main body 5 center hole C, main jet pipe 7 connects main body 5 and compresses nozzle 6, it is characterized in that being shaped on main body 5 air jet A, center hole C, air jet A and limit, center hole C hole are tangent; Be shaped on foam hole B, endoporus D on main jet pipe 7, foam hole B and limit, endoporus D hole are tangent; The foam hole B of main jet pipe 7 and its shaft axis angle are 0-30 °.

Compared with the prior art the utility model has the following advantages:

The utility model is simple, compact and reasonable for structure; Can eliminate main fuel system air air turbulence phenomenon, make air draught be same and form the foam-like oil gas mixing material of uniformity upward to mixing with fuel oil, the elaioleucite size is consistent, also can reduce fuel oil simultaneously and stick to formation liquid stream on the wall; Can improve the process that fuel oil atomizes, evaporates, spreads in air, thereby can improve the burning quality of motor, fuel oil is fully burned, and can improve engine power, reduce fuel consumption rate, reduce exhaust pollution, also improved power character, Economy and the exhaust pollution of motor.

Description of drawings

Fig. 1 is the utility model structural front view.

Fig. 2 is the utility model structure Y-Y sectional view.

Fig. 3 is the utility model structure X-X sectional view.

Fig. 4 is the utility model structure Z-Z sectional view.

Embodiment

Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:

The utility model mainly is made up of body cover 1, spring 2, throttle valve 3, master control spindle 4, main body 5, nozzle 6, main jet pipe 7, lubricating cup 8, main jet 9 etc.Adopt throttle valve 3 to be installed in the main body 5, mounting spring 2 in throttle valve 3, and master control spindle 4 is installed in throttle valve 3 lower ends, and nozzle 6 is loaded in the main body 5 center hole C, and main jet pipe 7 connects body 5 and compresses nozzle 6, and main jet 9 is loaded in main jet pipe 7 end hole.Lubricating cup 8 is installed in main body 5 lower ends, and body cover 1 is contained on the main body 5.Be shaped on air jet A, center hole C on main body 5, air jet A and limit, center hole C hole are tangent; Be shaped on foam hole B, endoporus D on main jet pipe 7, foam hole B and limit, endoporus D hole are tangent; The foam hole B of main jet pipe 7 and its shaft axis angle are 0-30 °.

Working principle of the present utility model and working procedure: when engine operation, air is by air jet A, this hole and limit, C hole, main center hole are tangent, air draught flows into the foam hole B of main jet pipe 7 along tangent one side, foam hole B and main jet pipe orifice are tangent, foam hole B upwards has an angle with shaft axis simultaneously, air draught upwards flows into the main jet pipe orifice simultaneously along tangent one side, the main jet pipe orifice with same direction flow mix with fuel oil form uniformity foam-like oil gas mixing material to nozzle, evenly smashed the consistent wellatomized fuel-air mixture of elaioleucite size spraying into the trunnion place.

The utility model air draught sprays into trunnion from entering air jet to forming foam-like oil gas mixed solution, whole process air-flow is same direction and flows, the air-flow that remains uniformity mixes with fuel oil, foam hole and endoporus two places have been eliminated by air jet and center hole and main jet pipe, because of the linkage structure of Kong Yukong relation the disorderly phenomenon of the air draught that produces, impel fuel oil evenly to disperse.

Claims

1, a kind of Carburetor of motorcycle engine, the main throttle valve (3) that adopts is installed in the main body (5), mounting spring (2) in throttle valve (3), master control spindle (4) is installed in throttle valve (3) lower end, nozzle (6) is loaded in main body (5) the center hole C, main jet pipe (7) connects main body (5) and compresses nozzle (6), it is characterized in that being shaped on main body (5) air jet A, center hole C, and air jet A and limit, center hole C hole are tangent; Be shaped on foam hole B, endoporus D on main jet pipe (7), foam hole B and limit, endoporus D hole are tangent.

2. the Carburetor of motorcycle engine according to claim 1 is characterized in that the foam hole B of described main jet pipe (7) and its shaft axis angle are 0-30 °.