SU49647A1 - Igniter for internal combustion engines - Google Patents

Description

In the typically used ignition plugs, there is only one electrode system and one of the ends is used to connect high voltage wires coming from magneto.

The disadvantages of these candles are that in the event of any defects during operation (breakdown of insulation, carbon, melting of electrodes, etc.), the candle must be removed from the wires, unscrewed or thrown away, or sent for cleaning and repair, and instead of it, put a new one from the stock, the presence, quantity and serviceability of which is the subject of special care for the attendants.

Meanwhile, under the conditions of operation of the maschinka in particular, and in particular, the battle tank, aircraft, etc., it is vitally necessary to have a second backup spark plug on the engine itself so that in the event of the first failure, this backup spark could be any complicated manipulation, immediately put to work.

The invention relates to spark plugs for internal combustion engines with the supply of electric current to the central part of the central electrode.

In order to eliminate these drawbacks, we offer a spark plug

made symmetrical with respect to the transverse plane and each part of it is provided with an insulated central electrode and a spark gap. During spark plug operation, one spark gap — working — is located in the combustion chamber of the engine cylinder, while the other outer one is covered with a cap with cooling fins and is a spare one.

Switching the current supply from one part of the central electrode to another, when the candle is turned over, is performed by means of a rotary switch or by inserting a conductor plug into one of the plug sockets in the body of the central part of the candle body.

In FIG. 1 shows an external view of a spark plug for internal combustion engines; FIG. 2-vertical section of it; FIG. 3 is the same with plug sockets for switching current supply; FIG. 4-an external view of a candle in a different form; FIG. 5-vertical section of it; FIG. 6, and 7-way to supply current to the candle.

The glow plug consists of a central part 1 of the body and two identical bases 2 (Figs. 1, 2), one of which is screwed into the body of the engine cylinder. In each symmetrical end

candles made up of conventional parts, are isolated from each other part of the central electrode 3 and the electrode 6 of the mass and forming spark gaps. The outer end of the candle, always turned off and not working, is protected from contamination by the ribbed cap 25, which also serves to cool the candle.

Through the plug / 7 and plug 8, the candle body is connected to the electrical conductor 20 supplying electrical current. By means of the knob (5), the switch 7 / is turned, and the current is switched to the corresponding part of the central electrode 3, passed through the insulator 4 of the working part of the candle. When for some reason this half of the candle fails to work, then it is turned off with the same switch, the plug is removed, turned out of the cylinder body, turned 180, screwed on the half that has not yet worked (previously unscrewed and pulled into the cap 25). The plugs are put in and connected via a switch to the electrical circuit.

If the candle is placed on a radio tank or a plane, then to protect the radio installation from electromagnetic interference generated by the plugs, a screen 23 is provided, simultaneously pressing the metal braid 22 of the wire to the plug. Also, in part, the cap 25 serves as a shielding.

For ease of use, the knob / 5 switch is hinged on / 2 and is always in the idle position in slot 7 made for this in the body of the candle.

The proposed candle is user-friendly and eliminates the need to take care of the second backup candle, because when delivered it always guarantees a double service life.

In the embodiment of the candle shown in FIG. 3, in order to simplify the construction of the candle, the body 7 has an insulator inside it with two plug-in sockets 7, each of which is connected to a specific central electrode 3 by conductive busbars 9.

In order to enable

the electrode system of the working part of the candle is inserted into the electric circuit, into the plug socket corresponding to this system, insert the elastic plug W of the conductor 20; In this case, the constructive performance of these sockets and the plug itself, their location and connection with the system of electrodes and with the wires may be different.

In order to prevent possible loss of plug and opening of the electric circuit during operation, and for radioactive machines to simultaneously create a reliable connection with the metal wire braid mass and the shielding cap M, a clamp 75 is provided that can be pulled in one way or another, and in particular through a bolt, plug or one of the known locks G6, as indicated in FIG. 3

A glow plug of a more simplified design is shown in FIG. 4, 5.

Such a candle can be attached to the contact ring 5 of the candle by simply tightening the loop (Fig. 6) of the stripped wire strand, followed by winding with insulating tape or by using a tip (Fig. 7); with one of its completely similar bases 2, the base is screwed into the cylinder body of the engine and thus is included in the electrical circuit, while its upper part remains disconnected from the mass and therefore is turned off.

When the working side comes out of the line, the candle is turned out, turned 180 °, screwed into its not yet working half, from which the cap 25 is pre-unscrewed and, thus, the proper time continues to work again.

The subject matter of the invention.

1. A glow plug for internal combustion engines with an electric current supply to the central part of the central electrode, characterized in that the candle is symmetrical about the transverse plane and provided with a central electrode and two spark gaps located at opposite ends of the candle, one of which is located in the chamber burning the engine cylinder, is working, and the other, external one, is spare, activated after the candle is turned over and the current supply is switched to the corresponding part of the central electrode. 2. In the candle according to claim 1, the application for switching the current supply from one part of the central electrode to another of the rotary switch 7 / .3. In the candle according to claim 1, use for switching the current supply from one part of the central electrode to the other two plugs 7 in the body of the central part of the candle body, one of which, depending on the part of the central electrode used, should be inserted into the conductor plug 20.

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