CN2210259Y - Double pipe-line fuel supply apparatus - Google Patents

Abstract

The utility model relates to a fuel supply apparatus of a single carburettor with a double pipe line, which has the advantages of good atomization effect and low oil consumption. The utility model comprises an air cleaner, the carburettor and an air inlet pipe, wherein, the air inlet pipe is in a U shape and is provided with an air inlet and two connection openings. The upper end of the carburettor is connected with an air cleaner, and the lower end of the carburettor is connected with the air inlet of an air inlet pipe. Because the atomization distance of mixed gas is lengthened, and the mixed gas evenly atomized enters into a cylinder by the utility model, the oilcan be saved by 20-30%, the maximum power can be enhanced by 8-10%, the maximum torque is also correspondingly enhanced, and the exhaust of exhaust gas is reduced.

Description

Double pipe-line fuel supply apparatus

The utility model relates to engine art, particularly a kind of dual circuit fuel oil supply device of automobile-use.

Motor car engine generally needs to send in the Carburetor through the air that filter cleaner was handled to mix with oil in the course of the work, and the mixed gas after will atomizing is again delivered in the cylinder, and its Cui vaporization ratio is 1; 14,9, if the bad fuel of atomizing just can not fully burn, with the Changjiang river 750 motorcycles is example, it adopts the bitubular, duplex carburettor structure, Carburetor directly is connected with cylinder, burning mixture is that near the atomization distance of generation, mixed gas cylinder port is short, causes motor to be worked under the dense situation of burning mixture, and power is low, fuel consumption is higher; Its Carburetor adopts the throttle valve structure, exists oil plant and enter cylinder operation, the oil consumption height under the situation that does not have fully atomizing; Throttle valve and needle produce abrasion, descend with respect to the degree of vacuum in the cylinder, cause the work balance poor, and uniformity descends, and the vapour locking phenomenon easily takes place during the high engine speeds of this structure.

The purpose of this utility model provides the fuel oil supply device of good, the fuel-efficient dual circuit list of a kind of atomizing effect Carburetor.

The utility model is to realize like this, it comprises air-strainer, Carburetor and suction tude, it is characterized in that suction tude takes the shape of the letter U, and a suction port and two connection mouths are arranged, the upper end of Carburetor is connected with air-strainer, and the lower end is connected with the suction port of suction tude.

The utility model is because the atomization distance of mixed gas of having extended, and makes the mixed gas after the uniform atomizing enter cylinder, but fuel-economizing 20-30%, peak output can improve 8-10%, the also corresponding raising of Maximum Torque, and exhaust gas discharging reduces.

Below in conjunction with accompanying drawing the utility model is further described;

Fig. 1 is the structural representation of dual circuit fuel oil supply device,

Fig. 2 is the structural representation of suction tude,

Fig. 3 is the diagrammatic sketch of facing upward of Fig. 2,

Fig. 4 is the structural representation of Carburetor,

Fig. 5 is the structural representation of filter cleaner,

Fig. 6 is the schematic cross-section of suction tude,

Shown in Fig. 1-6, this dual circuit fuel oil supply device comprises air-strainer 1, Carburetor 2 and suction tude 3, suction tude 3 takes the shape of the letter U, a suction port 4 and two connection mouths 5 are arranged, the upper end of Carburetor 2 and air-strainer 1 clamping, the lower end is connected with the suction port 4 of suction tude 3, and Carburetor 2 comprises housing 5, idle system, middling speed system, quickens system, closure 9, oil pipe 10, foam tube assembly 11, idle metering jet 12, main jet 13, accelerating pump 14 and float chamber 15; The fresh air that enters Carburetor 2 through air-strainer 1 is the air-flow along the rotation of Carburetor 2 shaft axiss, and gasoline is dispersed in three layers of trunnion 16 uniformly, and these triple diffuser 16 formulas are round table-like, constitute secondary-atomizing; Suction tude 3 adopts not equidistant variable section structure,, cooperate the mixed gas atomizing, when slow-speed of revolution operating mode, need denseer burning mixture, at this moment closure 9 apertures are less, it is bigger to be formed on the degree of vacuum pressure difference of closure between upper and lower, and the combustible gas that enters in the suction tude 3 is denseer; When high-speed working condition, at this moment the aperture of closure 9 is bigger, and the degree of vacuum pressure difference between closure is upper and lower is less, and the burning mixture that enters suction tude 9 is than alkene; When gasoline during from the ejection of the spray orifice of triple diffuser 16 tops, gas and oil is converted into the oil droplet of pouring to small venturi by oily stream mode, and the attraction force that relies on degree of vacuum is drenched downwards to middle trunnion, division again, fission more tiny oil droplet, combine with air again, combine with a part of oxygen molecule again when this more tiny oil droplet further falls into the following conical surface of triple diffuser 16 and form vaporificly, proportioning becomes the inflammable mixture of Cui to enter cylinder through suction tude 3.

Claims (3)

1, a kind of fuel oil supply device of dual circuit list Carburetor, it comprises air-strainer, Carburetor and suction tude, it is characterized in that; Suction tude takes the shape of the letter U, and a suction port and two connection mouths are arranged, and the upper end of Carburetor is connected with air-strainer, and the lower end is connected with the suction port of suction tude.

2, the fuel oil supply device of dual circuit list Carburetor according to claim 1 is characterized in that; Its triple diffuser is round table-like.

3, the fuel oil supply device of dual circuit list Carburetor according to claim 1,

It is characterized in that; Suction tude has adopted not equidistant variable section structure.

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