CN2879483Y

CN2879483Y - Side electrode O-type spark plug

Info

Publication number: CN2879483Y
Application number: CN 200520128567
Authority: CN
Inventors: 华迪敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-08
Filing date: 2005-10-08
Publication date: 2007-03-14
Anticipated expiration: 2015-10-08

Abstract

A side electrode O-type spark plug applied widely in a gasoline engine consists of a wiring nut (1), a wiring screw (2), a porcelain insulator (3), a housing (4), a sealing material (5), an outer gasket (6), an inner gasket (7), a central electrode (8) and a 'O' type side electrode (9) and is characterized in that: the side electrode is processed into an 'O' type structure and is welded and connected to an iron housing through some claws, the central electrode (8) is prolonged to pass through the small hole at center of the 'O' type side electrode until being level with the outer end surface of the 'O' type side electrode (9). Said side electrode O-type spark plug is capable of improving greatly reliability and stability of the firing energy of a spark plug and prolonging the service life greatly of a spark plug at the same time.

Description

Lateral electrode zero type spark plug

The utility model relates to and be widely used in petrolic spark plug.

As everyone knows, spark plug structure (as shown in Figure 1) generally is made up of wiring nut, wiring screw rod, porcelain insulator, sealing material, central electrode, iron-clad, inner washer, outer washer, lateral electrode at present.Produce ignition energy by the arcing gap between high electrical breakdown central electrode and the lateral electrode in use.Fuel mixture in the ignition combustion chamber makes engine operation.Common spark plug is because lateral electrode is normally single, and lateral electrode is corroded when spark plug is worked gradually, and the arcing gap of spark plug changes, thereby the ignition energy of spark plug is changed, influence the flammability of fuel mixture in the engine, engine power is affected.The economic life of spark plug shortens simultaneously, finally causes spark plug to lose efficacy.

For overcoming the shortcoming of above-mentioned spark plug.The utility model provides a kind of " zero " type lateral electrode spark plug, this spark plug can improve plug ignition energy reliability, stability greatly.While is the life-span of extending plug greatly.

The technical scheme in the invention for solving the technical problem is: except the unique design of lateral electrode, other structures are constant substantially." zero " type structure is made at the position, front end plane of lateral electrode (9), and top is weldingly connected with some pawls and iron-clad.Make it pass in the middle of " zero " type lateral electrode behind the endoporus central electrode lengthening and the outer transverse plane of " zero " lateral electrode that welding is good maintains an equal level the arcing gap of a circle of formation between central electrode and " zero " type lateral electrode.So just form unique ignition end structure.

The beneficial effects of the utility model are, because lateral electrode is " zero " type structure, being equivalent to central electrode can be to numerous lateral electrode arcing, certain seriously corroded of " even zero " type lateral electrode like this, central electrode changes to arcing gap herein, central electrode yet fully can be to the normal arcing of other directions, because central electrode can't be affected because of the corrosion in somewhere to the arcing gap of other directions.The arcing reliability and stability of this spark plug have so just been guaranteed.The result of this design can improve the useful life of this spark plug greatly.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structure cutaway view of existing spark plug.

Fig. 2 is the structural representation of the utility model lateral electrode " zero " type spark plug.

Fig. 3 is that the utility model lateral electrode " zero " type spark plug ignition end is looked up enlarged drawing.

Fig. 4 is the structure enlarged drawing at I place in the utility model lateral electrode " zero " type spark plug.

1. wiring nuts among the figure, 2. wiring screw rod, 3. porcelain insulator, 4. housing, 5. sealing material, 6. outer washer, 7. inner washer, 8. central electrode, 9. " zero " type lateral electrode.

As shown in Figure 2, the lateral electrode of former spark plug is made " zero " type structure shown in (9) among the figure, " zero " type lateral electrode upper part is weldingly connected by some pawls and housing, simultaneously with central electrode (8) lengthening, the aperture by " zero " type lateral electrode middle part is until equal with the outside end face of " zero " type lateral electrode neat.The material of central electrode (8) is identical with former sparking-plug electrode material, and the material of " zero " type lateral electrode (9) is identical with the material of former spark-plug side electrode.

Claims

1. lateral electrode zero type spark plug, form by wiring nut (1), wiring screw rod (2), porcelain insulator (3), housing (4), sealing material (5), outer washer (6), inner washer (7), central electrode (8), " zero " type lateral electrode (9), it is characterized in that: lateral electrode (9) is made " zero " type structure, and be weldingly connected by some pawls and iron-clad, central electrode (8) lengthening is passed through the middle aperture of " zero " type lateral electrode, until concordant with the outer face of " zero " type lateral electrode (9).