KR20080053853A - Structure of valve for engine using electromagnetism - Google Patents

Abstract

A valve structure for an engine using electromagnetism is provided to improve anti-abrasion characteristic of a valve by allowing the valve to rotate at the predetermined speed and direction without being influenced externally. A valve structure for an engine using electromagnetism comprises an intake and exhaust valve(51) installed on cylinder heads of each cylinder. A valve spring(52) provides restoring force in the direction inverse to that of driving force generated from a cam when the valve vertically reciprocates. A cotter is installed at the upper end of the valve to restrict the valve spring and a retainer(53) and to allow the valve to rotate regardless of friction when the valve vertically reciprocates. The retainer is integrally formed with the cotter. Electrodes(54,55) are installed on the upper end portion of the valve. Magnetic members(56,57) are installed at one side of the electrode, respectively.

Description

STRUCTURE OF VALVE FOR ENGINE USING ELECTROMAGNETISM}

1 and 2 are views schematically showing the main configuration of the valve structure of the engine according to the prior art.

3 is a cross-sectional view schematically showing the configuration of a valve structure of an engine using electromagnetic waves according to the present invention.

FIG. 4 is a cross-sectional view illustrating one side of FIG. 3;

<Description of the symbols for the main parts of the drawings>

51.Valve

52. Valve spring

53. Coater Integrated Retainer

53a. Cam follower contact

54,55. electrode

56,57. Magnet member

58. Bearing

The present invention relates to a valve structure of an engine using electromagnetic, and more particularly, to a valve structure of an engine using electromagnetic to improve the vulnerability of the valve groove portion using the coater.

The engine valve is a component that opens and closes up and down to open and close the engine intake and exhaust to supply or discharge the engine at a predetermined time.

It is very important that the valve rotates while the valve moves up and down. When the rotary motion is not performed, the valve face and the valve seat always come in contact with the same position, and the wear surface of the valve face occurs.

In severe cases, even when the valve is closed, the gas in the cylinder flows back to the intake and exhaust manifolds, and the combustion characteristics are deteriorated, which adversely affects the emission and output.

In addition, combustion is not properly performed due to a decrease in the compression pressure, and knocking occurs, and a problem of melting of the piston occurs. In addition, the durability of the exhaust valve is reduced due to the overheating of the exhaust valve temperature.

In addition, when the valve moves up and down, it uses a coater to restrain the valve spring and the retainer and to facilitate the valve to overcome friction and rotate.

As shown in FIG. 1, the single groove coater 10 which is widely used currently has a gap between the coater 10 so that the valve 11 and the coater 10 rotate integrally, and the coater 10 and the retainer ( Not shown).

In addition, since the excessive wear of the valve tip part and the cam follower pad and deposition of the carbon valve face part occur when the valve rotation is poor, the multi-groove coater 20 as illustrated in FIG. 2 has been developed to facilitate the rotation of the valve.

The multi-groove coater 20 has a gap between the coater 20 and the valve 21 in the surface contact between the coater 20 to enable free rotation without defining the rotational speed, direction, etc. of the valve 21. .

However, the above-mentioned multi-groove coater 20 processes a plurality of grooves 21a in the valve 21, so that the part subjected to the force becomes weak. In particular, when the diameter of the stem is small, there is a problem that the portion of the groove 21a is broken.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a valve structure of an engine using electromagnetic to improve rigidity by improving the vulnerability of the valve groove portion using the coater.

The valve structure of the engine using the electromagnetic of the present invention for achieving the above object, the intake and exhaust valves are installed in the cylinder head of each cylinder to suck the mixer into the combustion chamber and discharge the combustion gas, the valve The valve spring is installed to vertically reciprocate and rotate, and provide the restoring force in the opposite direction to the driving force by the cam during the vertical reciprocating motion. When the valve reciprocates vertically, the valve spring and the retainer are restrained. And a coater is installed at the upper end of the valve to facilitate the rotation of the valve to overcome friction, and at this time, the retainer and the coater are provided with a coater integrated retainer formed integrally, and the outer peripheral surface of the upper end of the valve is (+) / ( -) The electrodes of the poles are respectively installed, and each one side of the electrode is provided with a magnet member of the N pole / S pole, respectively It is characterized by.

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

3 is a cross-sectional view schematically showing the configuration of the valve structure of the engine using electromagnetic according to the present invention, Figure 4 is a cross-sectional view shown by cutting one side of FIG.

Referring to each of these figures, the valve structure of the engine using electromagnetic according to the present invention, the intake and exhaust valves 51 in the cylinder head of each cylinder to suck the mixer necessary for the expansion stroke into the combustion chamber and discharge the combustion gas The valve 51 is provided with a valve spring 52 to vertically reciprocate and rotate and provide a restoring force in a direction opposite to the driving force by the cam during the vertical reciprocating motion. ) Is installed in a state in which a predetermined compression force is applied between the outer side of the cylinder head and the retainer, and restrains the valve spring 52 and the retainer when the valve 51 reciprocates up and down, and the valve 51 reduces friction. A coater is installed at the upper end of the valve 51 to easily win and rotate.

At this time, the retainer and the coater are provided with a coater-integrated retainer 53 formed integrally, and the electrodes 54 and 55 of the (+) / (-) poles are installed on the outer circumferential surface of the upper end of the valve 51, respectively. On one side of the electrodes 54 and 55, magnet members 56 and 57 of the N pole / S pole are provided, respectively.

For example, if 54 is a positive electrode, 55 is a negative electrode, and if 56 is an N-pole magnet member, 57 is an S-pole magnet member.

And the coater integrated retainer 53 is mounted on the upper end of the valve 51, for example, ball bearing so that the rotation of the valve 51 is smoothly made between the valve 51 and the coater integrated retainer 53. 58 is installed.

In addition, the bearing 58 is installed on the outer circumferential surface and the upper end of the valve 51 in contact with the coater integrated retainer 53, respectively, and the magnet members 56 and 57 are installed on the upper portion of the bearing 58.

The valve spring 52 is restrained and installed by the coater integrated retainer 53 at the bottom of the coater integrated retainer 53.

Meanwhile, in FIG. 3, reference numeral 53a indicates a contact portion of the cam follower, and an arrow D in FIG. 4 shows the direction of the magnetic field.

Referring to the operation of the valve structure of the engine using the electromagnetic according to the present invention having the configuration as described above are as follows.

Referring again to the drawing, in the case of passenger diesel, the grooved portion smaller than the stem diameter is vulnerable because the stem diameter of the valve is small.

In order to prevent this, the valve structure of the engine using electromagnetic according to the present invention eliminates the groove formed in the conventional valve, and adds the role of the coater to restrain the valve spring 52 and the retainer to the valve 51 to the retainer. A coater integrated retainer 53 was provided.

Then, the valve-integrated retainer 53 is mounted on the valve 51 to constrain both the valve 51 and the valve spring 52.

In addition, since the valve 51 needs to rotate, the ball bearing 58 is attached to the portion where the valve 51 touches the coater integrated retainer 53.

In addition, by applying the principle of Fleming's right hand law to the coater integrated retainer 53 and the valve 51, the valve 51 can be rotated in a desired direction without being affected by friction.

Magnets of the north pole and the south pole are installed on the upper portion of the bearing 58, and the valve 51 causes a current to flow to generate a force according to the right hand rule described above. At this time, by changing (+) / (-) of the current flowing, the rotation direction of the valve 51 can be changed.

As described above, the valve structure of the engine using electromagnetic according to the present invention has the following effects.

It is possible to increase the rigidity of the valve by improving the vulnerability of the groove portion of the valve using the coater as in the prior art.

The valve itself rotates by designating speed and direction without being influenced by external influences (friction, etc.), thereby improving wear characteristics.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

Intake and exhaust valves are installed in the cylinder head of each cylinder to suck the mixer into the combustion chamber and discharge the combustion gas. The valve is vertically reciprocating and rotational movement, the valve spring is installed to provide a restoring force in the opposite direction to the driving force by the cam during the vertical reciprocating movement, When the valve is reciprocating up and down, a coater is installed at the upper end of the valve to constrain the valve spring and the retainer, and to facilitate the valve to overcome friction and rotate, At this time, the retainer and the coater is provided with a coater-integrated retainer made of an integral type, On the outer circumferential surface of the upper end of the valve, electrodes of (+) / (-) poles are installed, respectively, The valve structure of the engine using electromagnetic, characterized in that the magnet members of the N pole / S pole is installed on each side of the electrode. The method of claim 1, The coater integrated retainer is a valve structure of the engine using electromagnetic, characterized in that installed on the upper end of the valve. The method of claim 1, The valve structure of the engine using electromagnetic, characterized in that the bearing is installed between the valve and the coater integrated retainer to smoothly rotate the valve. The method of claim 3, Wherein the bearing is the valve structure of the engine using electromagnetic, characterized in that each of the outer peripheral surface of the valve and the upper end of the valve in contact with the coater integrated retainer. The method of claim 3, The valve structure of the engine using electromagnetic, characterized in that the magnet member is installed on the upper portion of the bearing. The method of claim 1, The valve spring is the valve structure of the engine using electromagnetic, characterized in that the constrained by the coater integrated retainer installed in the lower portion of the coater integrated retainer.

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