CN2499593Y - Main oil jet pipe for secondary atomizing micro regulating carburetor - Google Patents

Abstract

A main oil jet pipe for secondary atomizing micro regulating carburetor is a thin walled cylinder structure, wherein the wall of the main oil jet pipe along any angle of the circumference is provided with one or a plurality of long or short micro jet straight grooves or spiral grooves, and the micro jet nozzle areas and the specific distribution positions of the micro jet straight grooves or the spiral grooves are arranged according to the condition of the engine.

Description

The secondary-atomizing trace is regulated the carburetor main spray bar

The utility model relates to a kind of carburetor main spray bar, particularly a kind of secondary-atomizing trace is regulated the carburetor main spray bar, belongs to the petrol engine field.

Gasoline of the prior art starts in the groundwork zone, relies on the work of main oil supply system fuel feeding.When middle or small load operation, traditional Carburetor relies on the spindle that moves with plunger throttle valve or vacuum cock valve with the annular fuel feeding cross section of main jet oilhole formation fuel delivery to be regulated.But increasing along with engine load, Carburetor aditus laryngis aperture increases gradually, spindle moves on gradually, constantly increase by spindle and the formed circular crosssection of main jet oilhole, when spindle moves to adaptation bigger load of motor or big load operation with valve, spindle and the formed circular crosssection of main jet oilhole will be above main gauge hatch cross sections, make spindle lose regulating action to oil mass.Born by main gauge hatch the control of oil mass this moment, but the size of main gauge hatch is changeless, can not change with the variation of engine load, though traditional Carburetor has designed main foam tube, portion of air is done certain adjusting by main foam tube to the fuel oil amount of providing, but effect is very limited.Particularly motor because annular oil-feed port area is bigger, more is difficult to consider oil atomizing when higher load or big load operation, is difficult to form the burning mixture that concentration is suitable, atomizing is good, mix.

The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of secondary-atomizing trace to regulate the carburetor main spray bar.

The technical solution of the utility model is as follows: the main jet oil pipe is a thin-wall tubular structure, at main jet oil pipe barrel along arbitrarily angled one or more long or short little spray straight trough or the spiral chute that be provided with of circumference, little spray straight trough or the little area of injection orifice of spiral chute and concrete distribution position can be according to the operating mode settings of motor, this have the main jet oil pipe of little spout function because its jet cross section is very little, the fuel injection quantity of every jet is more little, and the shape of its groove, be difficult for forming obstruction and influencing oil spout, can implement oil atomizing is strengthened in the adjusting of engine oil trace and little spout.

When plunger throttle valve or vacuum cock valve are in buttoned-up status, all little spouts on the main jet oil pipe wall are hidden fully by the column part of fuel-flow control bar, this moment, this main fuel feeding was not devote oneself to work together, and motor is kept idle running under idle system system fuel feeding.When motor changes other lotus runnings into, plunger throttle valve or vacuum cock valve have risen to corresponding height, the fuel-flow control bar also rises to corresponding height with valve, little spout of a greater number on the main jet oil pipe wall is no longer hidden by the column part of fuel-flow control bar, and has entered the fuel feeding oil spout state that matches with tapered segment.Because little jet total sectional area is very little, the oil, the oil spout of gas mixture mat aperture that are entered the main jet oil pipe by main foam tube have not only improved jet velocity, and the primary atomization dynamics is strengthened, and because single nozzle opening cross section is minimum, fuel injection quantity is atomic, makes motor have the function of fuel delivery fine setting.

It is strong to the utlity model has applicability, can be applicable to the plunger throttle valve type Carburetor, constant-vacuum carburetter of all size and other carry out the Carburetor of fuel feeding control with spindle.Have micro-oil spout function, can carry out trace to supplying fuel and regulate, its little spout can strengthen the oil spout dynamics, improves the gasoline atomizing degree.Its multiple spot oil spout and multidirectional oil spout function can improve vapour, gas mixing uniformity.Have tangible economic benefit and social benefit.

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

Fig. 1 the utility model structural representation

The little spray straight trough of Fig. 2 structural representation

The little spray helical groove structure of Fig. 3 schematic representation

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model main jet oil pipe 1 is shaped as thin-wall tubular structure, at main jet oil pipe 1 barrel axially along arbitrarily angled one or more long or short little spray straight trough 2 or the spiral chute 3 that be provided with of circumference, little spray straight trough 2 or spiral chute 3 little areas of injection orifice and concrete distribution position can be according to the operating mode settings of motor, this main jet oil pipe 1 with little mouthful of oil spout function, because its jet cross section is very little, the fuel injection quantity of every jet is more little, and the shape of its groove, be difficult for forming obstruction and influencing oil spout, can implement oil atomizing is strengthened in the adjusting of engine oil trace and little spout.

Claims (1)

1, a kind of secondary-atomizing trace is regulated the carburetor main spray bar, is shaped as thin-wall tubular structure, it is characterized in that at main jet oil pipe (1) barrel axially along arbitrarily angled one or more long or short little spray straight trough (2) or the spiral chute (3) that be provided with of circumference.

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