CN2419378Y

CN2419378Y - Automatic air regulatinig valve

Info

Publication number: CN2419378Y
Application number: CN 00220219
Authority: CN
Inventors: 田耀刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-08
Filing date: 2000-05-08
Publication date: 2001-02-14
Anticipated expiration: 2010-05-08

Abstract

The utility model discloses an automatic air regulating valve, which is especially suitable for a combustible gas mixing controller. The automatic air regulating valve is provided with an air valve base, an air valve guide post, an air valve slide valve core, an air valve spring, and a buffer spring. The air valve guide post is fixedly connected to the air valve base or is made into one unit with the air valve base. The buffer spring, the air valve slide valve core, and the air valve spring are orderly sheathed on the air valve guide post from outer to inner. An air inlet is arranged between the air valve slide valve core and the air valve base. Under the various working conditions of an engine, the utility model depends on the negative pressure of an air cylinder to automatically regulate the size of the air inlet, that is, air inlet and outlet quantity is regulated. Thus, the manipulation of the engine is flexible, and the largest power is exerted.

Description

The air automatic regulating valve

The utility model relates to a kind of valve that is used for the combustible gas mixture control.

The combustible gas mixture control that existing gas burning engine is adopted, generally be provided with air-regulating valve at the air inlet place, this valve when needs change engine operating condition, is artificially controlled the inlet of air from air inlet by manual control, to adapt to the needs of corresponding operating mode, owing to be manual control, be difficult in and regulate the air quantity that enters under the various operating modes, make air one combustible gas proportioning and quantity be difficult to reach optimum value, cause power management dumb, can not bring into play peak output.

The purpose of this utility model is to provide a kind of air automatic regulating valve that is applicable to the combustible gas mixture control, and it can regulate the inlet of air automatically under the various operating modes of motor, make power management flexible, can bring into play peak output.

In order to achieve the above object, the utility model adopts following technological scheme: a kind of air automatic regulating valve, air automatic regulating valve especially for the combustible gas mixture control, have valve seat insert, valve guide pillar, valve sliding spool, valve spring and buffering spring, the valve guide pillar is fixedly connected on the valve seat insert or with valve seat insert and makes one, ecto-entad is set with damping spring, valve sliding spool and valve spring successively on the valve guide pillar, between valve sliding spool and the valve seat insert air inlet is arranged.

After adopting said structure, because ecto-entad is set with damping spring, valve sliding spool and valve spring on the valve guide pillar, makes the valve sliding spool be in quick condition, when the engine operating condition variation causes the cylinder negative pressure variation, but valve sliding spool move left and right turns down or opens big air inlet.For example, the cylinder negative pressure increases, and the valve sliding spool is attracted to valve seat insert, thereby has turned down air inlet, reduces the inlet of air, and the promptly corresponding combustible gas concentration that makes increases, and motor is raised speed; When the cylinder negative pressure reduces, the valve sliding spool leaves valve seat insert under the effect of valve spring, thereby opens big air inlet, increases the air inlet, and the promptly corresponding combustible gas concentration that reduced makes engine retard.Like this, under various operating modes, the position of valve sliding spool changes at any time, has therefore regulated the air inlet automatically, air one combustible gas proportioning and the quantity that makes motor obtain being fit to, and power management is flexible, and the performance peak output.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the structural representation of air automatic regulating valve of the present utility model.

Fig. 2 is the left view of Fig. 1;

Fig. 3 is second embodiment's of the utility model a structural representation;

Fig. 4 is the 3rd embodiment's of the utility model a structural representation;

Fig. 5 is that the utility model is applied in the installation diagram on the combustible gas mixture control.

As shown in Figure 1, 2, air automatic regulating valve of the present utility model has valve seat insert (6), valve guide pillar (3), valve sliding spool (5), valve spring (9) and buffering spring (4), valve guide pillar (3) is fixedly connected on valve seat insert (6) and goes up or make-body with valve seat insert (6), valve guide pillar (3) is gone up ecto-entad and is set with damping spring (4), valve sliding spool (5) and valve spring (9) successively, between valve sliding spool (5) and the valve seat insert (6) air inlet (15) is arranged.

For the ease of adjusting the spacing between valve sliding spool (5) and the valve seat insert (6), promptly adjust air inlet (15) initial opening size, an adjusting nut (2) is contained in the outer end that damping spring (4) were gone up and be positioned to valve guide pillar (3).Adjusting nut (2) is also tight with nut (1).The interior edge face of valve sliding spool (5) is the conical surface (13), and the through hole (11) of valve seat insert (6) has the conical surface (12), helps good fit between valve sliding spool (5) and the valve seat insert (6) like this, and through hole (11) is straight hole or taper hole also.Valve seat insert (6) is made up of valve circle (7), leg (8) and bearing (10), and leg (8) quantity is 1～4, also can be more than 4, and leg (8) one ends and valve circle (7) are affixed, and the other end and bearing (10) are affixed, and bearing (10) is affixed with valve guide pillar (3).

As shown in Figure 3, among second embodiment of the utility model, valve seat insert (6) band vent (14) and shape are spends blue shape, spends blue bottom affixed with valve guide pillar (3).All the other structures are identical with above-mentioned first embodiment.

As shown in Figure 4, among the 3rd embodiment of the utility model, valve seat insert (6) band vent (14) and shape are end staving shape, and the staving bottom is affixed with valve guide pillar (3), and the interior edge face of valve sliding spool (5) is the plane, also can adopt the conical surface.All the other structures are identical with first embodiment.

As shown in Figure 5, the utility model is applied on the combustible gas mixture control, can be installed on the air inlet (17) of combustible gas mixture control (16), and valve seat insert (6) and air inlet (17) be drive fit fixedly.Air inlet preferably has step on (17), and valve seat insert (6) is spacing by this step.When motor raised speed, the cylinder negative pressure increased, and valve sliding spool (5) moves right in cylinder suction function lower compression valve spring (9), turn down air inlet (15), reduce the air inlet, so just improved combustible gas concentration relatively, be beneficial to motor and improve power; When the cylinder negative pressure diminishes, valve sliding spool (6) resets left under the effect of valve spring (9), open big air inlet (15), increase certain air inlet, so just reduced the concentration of combustible gas relatively, make motor under this operating mode, obtain the proportioning and the quantity of optimal air one combustible gas, can bring into play peak output.The utility model also can be applicable on the air pipe line between air-strainer and the combustible gas mixture control.

Claims

1, a kind of air automatic regulating valve, air automatic regulating valve especially for the combustible gas mixture control, it is characterized in that: have valve seat insert (6), valve guide pillar (3), valve sliding spool (5), valve spring (9) and buffering spring (4), valve guide pillar (3) is fixedly connected on valve seat insert (6) and upward or with valve seat insert (6) makes one, valve guide pillar (3) is gone up ecto-entad and is set with damping spring (4), valve sliding spool (5) and valve spring (9) successively, between valve sliding spool (5) and the valve seat insert (6) air inlet (15) is arranged.

2, according to the air automatic regulating valve shown in the claim 1, it is characterized in that: an adjusting nut (2) is contained in the outer end that damping spring (4) were gone up and be positioned to valve guide pillar (3).

3, according to the air automatic regulating valve shown in claim 1 or 2, it is characterized in that: the interior edge face of valve sliding spool (5) is the conical surface (13).

4, air automatic regulating valve according to claim 3 is characterized in that: through hole (11) external port of valve seat insert (6) has the conical surface (12).

5, air automatic regulating valve according to claim 1 and 2, it is characterized in that: valve seat insert (6) is made up of valve circle (7), leg (8) and bearing (10), leg (8) one ends and valve circle (7) are affixed, and the other end and bearing (10) are affixed, and bearing (10) is affixed with valve guide pillar (3).

6, air automatic regulating valve according to claim 1 and 2 is characterized in that: valve seat insert (6) band vent (14) and shape are spends blue shape.

7, air automatic regulating valve according to claim 1 and 2 is characterized in that: valve seat insert (6) band vent (14) and shape are end staving shape.