KR101421753B1 - Timing device for check valve control - Google Patents

Abstract

The present invention relates to a timing device for controlling a check valve, in which a yoke is vertically and vertically movable as a power source, and a check valve and a place where power is generated are close to each other, The present invention provides a timing device for controlling a check valve which can be configured using a small number of parts and which can be easily changed only by replacing a roll guide in order to change a valve lifting and injection timing.

Check valve, control, timing device, protrusion, cam, roll guide, pressure control

Description

[0001] Timing device for check valve control [

The present invention relates to a timing device for controlling a check valve for precisely and mechanically controlling the timing and amount of gas supplied by a check valve, The timing of the introduction of the gas can be adjusted according to the shape of the cam protrusion of the roll guide and the amount of the introduced gas can be adjusted by the head of the cam protrusion of the roll guide or the lift of the adjustment bolt, To a gas supply device for supplying gas to the gas supply device.

Conventional timing devices are difficult to control because of the distance between the check valve where direct drive is performed and the place where power is generated, and the structure is complicated.

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Above all, in the related art, there has been a problem that the camshaft must be changed to change the valve head or injection timing.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the related art, and the structure of the yoke is simplified by using vertical up and down motions as a power source, and a distance between a check valve and a place where power is generated is short, Is simple, so it is possible to use a small number of parts and to configure the valve. To change the valve head or injection timing, if the camshaft needs to be changed, a timing device for controlling the check valve can be easily changed using an adjusting bolt It has its purpose.

In order to achieve the above object, the present invention provides a method for controlling an intake air and an exhaust gas to be supplied to a chamber other than the prechamber by means of an intake valve and an exhaust valve, A timing device for controlling a check valve for precisely mechanically controlling the timing and amount of gas supplied to a prechamber,
A support base fixed to the body portion of the prechamber by a fixing bolt;
A timing device body coupled to the support by a shaft;
A pressure unit which is coupled to one end of the timing device body and has an adjusting belt for adjusting a degree of engagement with the timing device body so as to adjust a compression force of the check valve;
A roller coupled to the other end of the timing device body;
A roll guide portion having a cam-shaped protrusion for contacting the roller and capable of pushing the roller;
Wherein the roll guide portion having the cam-shaped protrusions is provided to be capable of being engaged with and detachable from the yoke portion so as to be able to be changed in accordance with the head of the check valve and the injection timing,
Wherein the check valve body is configured to rotate as the roller moves the roller guide portion so that the check valve can be opened and closed in association with the vertical movement of the yoke portion.

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As described above, according to the present invention, the inflow amount of the gas is adjusted by controlling the spindle head of the check valve, and the inflow timing of the gas is adjusted by controlling the opening and closing timing of the spindle, So that the valve lifting and injection timing can be conveniently replaced by the replacement of the cam-shaped protrusion according to the degree of protrusion of the cam-shaped protrusion and the shape of the check valve through the control valve .

Also, since the opening and closing timing of the valve is forcibly controlled, it is possible to prevent the gas from leaking without the check valve being fixed or closed by the carbon which may be caused by the internal combustion of the prechamber.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a configuration diagram showing a configuration of a timing device for controlling a check valve according to the present invention.

As shown in the drawings, the present invention provides a plasma processing apparatus including a support for fixing a body of a prechamber by a fixing bolt, a timing device body connected to the shaft by a shaft, a pressure unit coupled to one end of the timing device body, And a yoke portion coupled to the cam protrusion to guide the movement of the roller of the timing device body and a yoke portion to move the cam protrusion upward and downward Consists of.

The timing device body is supported by a support fixed to the top surface of the prechamber.

The roll guide has a cam-shaped protrusion capable of pushing the roller provided on the timing device body so as to switch the up-and-down vertical movement of the yoke to the compression force of the spring provided on the check valve.

The roll guide is provided in the direction opposite to the end yoke of the intake yoke so that the rich gas flows in the intake stroke of the lean gas.

On the other hand, the shape of the projecting portion of the roll guide may vary in shape and position depending on the valve head and injection timing

The roller provided on the top of the timing device body is rotated by abutting against the cam protrusion of the roller guide and moves up and down the roller guide and the cam protrusion.

The timing device body is engaged so that the roll guide can be guided so that the cam-shaped protrusions of the rollers and the roll guides are not released while the rollers are rotating and moving up and down

Since the adjustment bolt tightens the upper nut part, it can move up and down the adjustment bolt and adjust the valve head easily,

In addition, the bottom surface of the adjustment bolt and the surface contacting the top surface of the timing bar are rounded to facilitate operation and reduce wear.

When the shape of the cam-shaped projection of the roll guide is increased, the movement distance of the valve body portion becomes longer, and the gas injection period becomes longer. When the shape of the cam-shaped protrusion is formed at the lower end, the check valve opening timing is also increased, which means that the inflow of the rich gas is close to the cylinder intake valve opening timing.

In the present invention, the timing device body is connected to a three-piece roll guide, an adjusting bolt, and a support so that the up-and-down vertical movement of the yoke is converted into the compressive force of the check valve spring. The roll guide provided on the yoke is always in contact with the rollers by pushing the rollers in the roll guide direction by the repulsive force of the rollers provided on the body of the timing device and the spring of the check valve. The rollers installed in the timing device are brought into contact with the upper surfaces of the projections of the roll guides by the vertical movement of the roll guides. Then, when the roller comes to the portion having the shape of the cam-shaped protrusion, the timing device body is pushed forward by the height of the cam-shaped protrusion. In conjunction with the timing device, the lower part of the adjustment bolt lowers the check valve timing bar and the spring compresses. The lowered timing bar again opens the check valve connected to the timing device by lowering the spindle connected to the check valve. At this time, the adjustment bolt can adjust the valve head. When the nut of the adjustment bolt is tightened, the adjustment bolt goes down and the head becomes longer. When the nut is loosened, the adjustment bolt goes up and the head is shortened.

It should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a configuration of a check valve for gas injection according to the present invention;

Description of the Related Art [0002]

10: Check valve

100: Support

110: Fixing bolt

200: Timing device body part

210:

211: Adjustment bolt

220: Rollers

300: roll guide portion

310: cam shape projection

400: yoke part

Claims (3)

The timing and amount of gas supplied to the prechamber by the check valve, separately from the device having the yoke portion provided so as to be able to move up and down so as to control the intake and exhaust supplied to the chambers other than the prechamber by the intake valve and the exhaust valve, For accurately controlling the timing of the check valve A support base fixed to the body portion of the prechamber by a fixing bolt; A timing device body coupled to the support by a shaft; A pressure unit which is coupled to one end of the timing device body and has an adjusting belt for adjusting a degree of engagement with the timing device body so as to adjust a compression force of the check valve; A roller coupled to the other end of the timing device body; A roll guide portion having a cam-shaped protrusion for contacting the roller and capable of pushing the roller; The roll guide portion having the cam-shaped protrusions can be coupled to and detachable from the yoke portion so that the roll guide portion can be replaced according to the head of the check valve and the injection timing, Wherein the check valve body is configured to rotate the timing device body part as the roller moves the roller guide part so that the check valve can be opened and closed in conjunction with the vertical movement of the yoke part. delete delete

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