CN2816394Y

CN2816394Y - Single-pole ignition device of piston type gasoline engine

Info

Publication number: CN2816394Y
Application number: CN 200520009667
Authority: CN
Inventors: 曾晓春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-23
Filing date: 2005-07-23
Publication date: 2006-09-13
Anticipated expiration: 2015-07-23

Abstract

The utility model relates to a single pole ignition device of a piston type gasoline engine. The utility model comprises a casing, a ceramic insulator, a positive electrode and a high voltage wire terminal, wherein the casing is connected with a cylinder cover of an engine. The utility model is characterized in that a negative electrode is arranged at the upper end of a piston and moves from top to bottom following the piston, and the negative electrode is connected with a ground wire; the minimum distance h between the upper end of the negative electrode and the lower end of the positive electrode is between 0.4 mm and 0.8 mm. The utility model has the advantages that the utility model fundamentally overcomes the defects that the ignition of a double-pole spark plug is not punctual, carbon and dirt are easily deposited, and a lateral electrode is easily burnt; the ignition is reliable, the propagation speed of flame is high, and the work efficiency of the engine is high; the inflammable mixture is thoroughly burnt, and harmful ingredients in waste gas which is exhausted are reduced. The utility model is suitable for various piston type gasoline engines.

Description

Piston type petrol engine one pole ignition mechanism

Technical field

The utility model relates to the gasoline engine ignition parts, is specifically related to a kind of piston type petrol engine one pole ignition mechanism.

Background technique

Spark plug is the parts of gasoline engine ignition system, and its effect is the high-tension current jump gaps that high-voltage conducting wires is transported, and produces strong spark, and the inflammable mixture in the firing chamber is lighted.The housing of existing spark plug is made by low carbon steel, and resistant to elevated temperatures ceramics insulator is housed in housing, and the insulator center is embedded with centre electrode one positive pole, and other electrode-negative pole is fixed on a side of housing lower end, the gap that is maintained fixed between negative pole and the positive pole; Hexagon is made on housing top, and is supporting with spanner, so that loading and unloading; Lower housing portion is made screw thread, so that be screwed in the screw of engine cylinder cap.The spark plug that this negative pole is fixing, the often problem that occurs: the one, the not timing of lighting a fire promptly is not to light inflammable mixture at the time of ignition of regulation, causes engine power to descend; The 2nd, easy carbon deposit causes the spark plug cutoff, causes the motor cisco unity malfunction.Therefore, exist the demand of improving existing spark plug.

Summary of the invention

The purpose of this utility model provides a kind of piston type petrol engine one pole ignition mechanism, and it can light inflammable mixture at the time of ignition of regulation, avoids engine power to descend; Make the inflammable mixture sufficient combustion, reduce carbon deposit, guarantee that igniting is reliable.

Piston type petrol engine one pole ignition mechanism described in the utility model, comprise housing, be located at the ceramics insulator in the housing, the high voltage wire terminal that is located at the interior positive pole of ceramics insulator, is located at the ceramics insulator upper end and is connected with positive pole, housing is connected on the cylinder cap of motor, it is characterized in that: negative pole is located at the upper end of piston, move up and down with piston, and be connected with ground wire; Minimum range h between the lower end of the upper end of negative pole and positive pole is 0.4-0.8mm, and the h value is decided with the motor of different model.Negative pole is located at the upper end of piston, move up and down with piston, distance between positive and negative changes, can not form and block the angle, and the influence igniting, the time of ignition that can be implemented in regulation is lighted inflammable mixture, do not influence velocity of propagation of flame, light a fire the position from bottom to up, flame propagation speed, burning is fully.The anodal iridium alloy material that adopts, diameter is the 0.4-1.0 millimeter.

Described piston type petrol engine one pole ignition mechanism, its negative pole and piston that is located at the upper end of piston is an integral body, perhaps is fixedly connected on the upper end of piston.Negative pole and piston are an integral body, and promptly negative pole and piston are commaterial, though simple in structure, also can light a fire, the material of general piston does not reach the performance requirement of electrode.So, preferably use iridium alloy to make negative pole with good permeability to heat and higher-strength, be fixedly connected on the upper end of piston again.Placement can be welding, or is threaded, or presses embedding to connect.Adopt thread connecting mode, can make the negative pole of different heights, so that regulate the distance between the both positive and negative polarity.

Described piston type petrol engine one pole ignition mechanism, the upper end of its negative pole is plane or sphere.

Described piston type petrol engine one pole ignition mechanism, its lower end that is located at the positive pole in the ceramics insulator are cylindrical or are taper shape.Anodal lower end is made cylindrical, is not easy scaling loss, and the gap between the both positive and negative polarity is not easy to increase, and service time is longer.Do coning anodal lower end, and electric energy is concentrated, and arcing is easy, but also easy scaling loss increases the distance between the both positive and negative polarity.

The utility model is compared concrete following advantage with prior art: it is unpunctual fundamentally to have overcome the ignition plug with double spark igniting, easy carbon deposit, contamination, the defective of the easy scaling loss of lateral electrode; Igniting is reliable, flame propagation speed, engine operation efficient height; The inflammable mixture sufficient combustion, the oxious component in the combustion gas reduces.Be applicable to various piston type petrol engines.Through testing on automobile, motorcycle gasoline engine, its power, moment of torsion and discharging all are better than original ignition plug with double spark, and fuel consumption reduces 15-20%.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that negative pole and piston are holistic schematic representation.

Fig. 3 is the engine-mounted schematic representation of the utility model.

Embodiment

Embodiment one: referring to Fig. 1 and Fig. 3, be columniform anodal 3 to be contained in the ceramics insulator 2 with the lower end, anodal 3 ceramics insulator 2 be housed reinstall in the housing 1 that high voltage wire terminal 4 is contained in the upper end of ceramics insulator, and is connected with positive pole; Then, housing 1 being contained on the cylinder cap of motor, is the upper end that negative pole 5 that plane, lower end are provided with screw thread is connected piston 6 again with the upper end; Select the negative pole of certain altitude, the upper end that makes negative pole 5 is that 0.8mm gets final product with minimum range h between the lower end of positive pole 3.

Embodiment two: referring to Fig. 1 and Fig. 3, be conical anodal 3 to be contained in the ceramics insulator 2 with the lower end, anodal 3 ceramics insulator 2 be housed reinstall in the housing 1 that high voltage wire terminal 4 is contained in the upper end of ceramics insulator, and is connected with positive pole; Then, housing 1 is contained on the cylinder cap of motor, is sphere again with the upper end and is contained in the cylinder body for holistic negative pole 5 with piston 6, the minimum range h between the upper end of negative pole 5 and anodal 3 the lower end is that 0.4mm gets final product.

Claims

1, piston type petrol engine one pole ignition mechanism, comprise housing (1), be located at the ceramics insulator (2) in the housing, the high voltage wire terminal (4) that is located at the interior positive pole (3) of ceramics insulator, is located at the ceramics insulator upper end and is connected with positive pole, housing is connected on the cylinder cap of motor, it is characterized in that: negative pole (5) is located at the upper end of piston (6), move up and down with piston, and be connected with ground wire; Minimum range h between the lower end of the upper end of negative pole (5) and positive pole (3) is 0.4-0.8mm.

2, piston type petrol engine one pole ignition mechanism according to claim 1 is characterized in that: the negative pole (5) that is located at the upper end of piston (6) is an integral body with piston, perhaps is fixedly connected on the upper end of piston.

3, piston type petrol engine one pole ignition mechanism according to claim 1 and 2, it is characterized in that: the upper end of negative pole (5) is plane or sphere.

4, piston type petrol engine one pole ignition mechanism according to claim 1 and 2 is characterized in that: the lower end that is located at the positive pole (3) in the ceramics insulator is cylindrical or is taper shape.