KR200293206Y1 - Spark plug for automobile engine - Google Patents

Abstract

The present invention relates to an ignition plug 30 mounted on the combustion chamber 11 of the vehicle engine 10 to generate a spark discharge. As a feature of the present invention, a pair of gaskets 40 having a through hole 40a to be mounted with the spark plug 30 are provided, and the gasket 40 is mounted on the spark plug 30 to be fastened on a combustion chamber. The two electrodes 31 and 32 of the spark plug 30 are not exposed to the inside of the combustion chamber 11 by the gasket 40.

Accordingly, the present invention is to be engaged with the combustion chamber of the engine while the gasket is mounted on the spark plug to reduce the compression ratio of the piston to smooth the reciprocating movement of the piston to reduce engine noise, improve the output of the vehicle and fuel There is a saving effect.

Description

Spark plugs for vehicle engines {SPARK PLUG FOR AUTOMOBILE ENGINE}

The present invention relates to a spark plug, and more particularly, to be coupled to the combustion chamber of the engine in the state where the gasket is mounted on the spark plug to reduce the compression ratio of the piston to smooth the reciprocating movement of the piston to lower the engine noise, The present invention relates to a spark plug for a vehicle engine that improves power while saving fuel.

In general, spark plugs are also referred to as pre-ignition, and are mounted on the cylinder head of the engine to control the primary coils connected to batteries, and apply the high voltage current generated from the secondary coils to the central electrode of the spark plugs. It is a part that ignites by injecting sparks between the electrodes on the ground side which are guided and screwed to the cylinder. The main part consists of a center electrode made of nickel alloy or gold, a ceramic insulator, and a shell provided with a ground electrode. Insulation of the spark plug is important, and as the insulating material, porcelain, aluminum silicate, aluminum oxide, mica and the like are used.

1 is a cross-sectional view showing a spark plug with a state in which a main portion of a general engine is partially cut away.

The engine 10 of the vehicle includes a spark plug 20 and an intake / exhaust valve 13 (13A) on a combustion chamber 11 of a cylinder head which is pressurized by a vertical reciprocating motion of a piston 12, According to the stroke, the spark plug 20 and the intake / exhaust valves 13 and 13A are operated to generate an output. At this time, the spark plug 20 is responsible for igniting the compressed mixed gas by generating a spark discharge at a distance between the center electrode 21 and the ground electrode 22 with a high voltage induced by the ignition coil.

The output of the engine is greatly influenced by the mixed state of the gas in the combustion chamber 11, the combustion state, and the like, and it is important that the flame ignited by the mixed gas in the combustion chamber 11 is rapidly expanded evenly to achieve complete combustion. Incomplete combustion causes a decrease in power output and an increase in exhaust gas pollution.

However, since the two electrodes 21, 22 of the spark plug 20 are exposed into the combustion chamber 11, the compression space of the piston is narrowed by that, thereby increasing the compression ratio of the piston. Accordingly, the up and down reciprocating motion of the piston is not made smoothly, which leads to a decrease in the output and fuel efficiency of the vehicle, and accompanied by a closed end where noise of the vehicle engine is generated.

In addition, there is a problem that the combustion efficiency is significantly reduced because it affects the flow of the mixed gas in the combustion chamber.

Therefore, the present invention is to solve the conventional problems as described above, by engaging the combustion chamber of the engine with a gasket attached to the spark plug to reduce the compression ratio of the piston to smooth the reciprocating motion of the piston to the engine noise It is an object of the present invention to provide a spark plug for a vehicle engine that is lowered and the output of the vehicle is improved while saving fuel.

1 is a cross-sectional view showing a spark plug with a state in which a main portion of a general engine is partially cut away;

Figure 2 is an exploded perspective view showing a spark plug according to the present invention.

Figure 3 is a partial cross-sectional view showing by fastening to the engine in a state in which the gasket is mounted on the spark plug according to the present invention.

In order to achieve this object, the present invention provides an ignition plug 30 mounted on the combustion chamber 11 of the vehicle engine 10 to generate a spark discharge: through the opening 40a to be mounted with the ignition plug 30. The genie is provided with a pair of gaskets 40, and the gasket 40 is mounted on the spark plug 30 and fastened on the combustion chamber so that the two electrodes 31 and 32 of the spark plug 30 are connected to the gasket 40. It is characterized by not being exposed to the inside of the combustion chamber 11 by.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Figure 2 is an exploded perspective view showing a spark plug according to the present invention.

The present invention relates to an ignition plug 30 mounted on the combustion chamber 11 of the vehicle engine 10 to generate a spark discharge. More specifically, the spark plug 30 generates a flame discharge at a distance between the center electrode 31 and the ground electrode 32 by a high-voltage current induced by the ignition coil, thereby compressing the mixed gas compressed in the combustion chamber 11. Ignite.

Spark plugs, which are common to FIGS. 1 and 2, are provided with reference to the present invention. The spark plug 30 consists of the main part of an electrode, an insulator, and a fuselage. The electrode is composed of a center electrode 31 and a ground electrode 32, there is a gap between them 0.5 ~ 0.8mm to spark sparks. At the upper end of the insulator 33, there is a rib 34 for preventing a flashover to a high voltage current. The lower end part of the fuselage | body 35 has the screw part 35A for fitting to the combustion chamber 11, and the ground electrode 32 is welded.

At this time, the present invention is a spark plug 30 is mounted on the combustion chamber 11 of the vehicle engine 10 to generate a spark discharge, a pair having a through-hole 40a to be mounted with the spark plug 30 A gasket 40 is provided. The gasket 40 preferably uses heat resistant steel having heat resistance and corrosion resistance. Heat Resisting Steel, on the other hand, is an alloy steel with stable mechanical properties even at high temperatures and good corrosion resistance, deformation resistance, and workability, and is improved by adding various metal materials (Ni, Al, Cr, etc.). do.

In addition, according to the present invention, the gasket 40 is mounted on the spark plug 30 and fastened on the combustion chamber 11 so that the two electrodes 31 and 32 of the spark plug 30 are connected to the combustion chamber by the gasket 40. Do not expose it to the inside.

Reference numeral 50 which is not described below is a sealing ring for sealing the inside of the combustion chamber from the outside of the cylinder head.

3 is a partial cross-sectional view showing the fastening to the engine in a state in which the gasket is mounted on the spark plug according to the present invention.

In Fig. 3, after mounting a pair of gaskets 40 and a sealing ring 50 for sealing the inside of the combustion chamber, the cylinder head of the vehicle engine 10 is mounted in the threaded portion 35A of the spark plug 30. Screw on the combustion chamber (11). At this time, the two electrodes 31 and 32 of the spark plug 30 are not exposed to the inside while maintaining the state flowing into the combustion chamber 11 by the gasket 40. As a result, the two electrodes of the spark plug 30 generate spark discharge by the vertical reciprocating motion of the piston 12 in accordance with the predetermined stroke of the engine 10 of the vehicle to ignite the mixed gas compressed in the combustion chamber. The exhaust valves 13 and 13A are operated to generate output.

Since the two electrodes 31 and 32 of the spark plug 30 mounted in the combustion chamber are not exposed inside the combustion chamber 11, the compression space of the piston 12 is increased by that much, while the compression ratio of the piston is increased. As a result, the up and down reciprocation of the piston is smoothly performed, thereby increasing the output and fuel efficiency of the vehicle and reducing the noise of the vehicle. In addition, the combustion efficiency is improved because it does not affect the mixed gas flow that extends in the combustion chamber.

On the other hand, since the ignition plug cannot define the temperature uniformly according to the characteristics of the engine or the operating conditions, the ignition plug is used for each engine. In general, the ignition plug includes the standard type, the U type, and the P-row all-round type. Different types of electrodes are used, such as two-pole four-sided electrodes, and are classified into heat plugs having a low heat value, cold plugs having a high heat value, and mid-heated plugs in the middle according to the heat emission degree (heat value) of the spark plug.

The gasket 40 proposed in the present invention will be applicable to any type of spark plug described above.

As such, the present invention allows the spark plug 30 to be coupled to the combustion chamber of the engine in a state in which the gasket 40 is mounted, so that the two electrodes of the spark plug 30 are not exposed to the inside, thereby reducing the compression ratio of the piston. The reciprocating motion of (12) is smoothed so that the engine noise is lowered, the output of the vehicle is improved, and the fuel is saved.

It is apparent to those skilled in the art that the present invention is not limited to the embodiments described, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or modifications will have to belong to the utility model registration claims of the present invention.

As described above, the present invention is coupled to the combustion chamber of the engine while the gasket is mounted on the spark plug to reduce the compression ratio of the piston to smoothly reciprocate the piston, thereby reducing engine noise and improving the output of the vehicle. On the other hand, it saves fuel.

Claims (1)

In the spark plug 30 mounted on the combustion chamber 11 of the vehicle engine 10 to generate a spark discharge: It is provided with a pair of gaskets (40) having a through hole (40a) to be mounted with the spark plug 30, The gasket 40 is mounted on the spark plug 30 and fastened on the combustion chamber so that the two electrodes 31 and 32 of the spark plug 30 are not exposed to the inside of the combustion chamber 11 by the gasket 40. Spark plug for vehicle engine, characterized in that.