CN2687358Y

CN2687358Y - Multiple overlapped fully-sealed piston ring

Info

Publication number: CN2687358Y
Application number: CN 03284210
Authority: CN
Inventors: 翟好周; 马建生
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-04
Filing date: 2003-09-04
Publication date: 2005-03-23
Anticipated expiration: 2013-09-04

Abstract

The utility model discloses a multiple overlapped fully-sealed piston ring. Multiple-step ring openings which combine convex concave shape inserting and butt joint are adopted by the multiple overlapped fully-sealed piston ring. The convex shape ports of the multiple overlapped fully-sealed piston ring are four-stage dummy clubs. The section of a first stage dummy club and the section of a second stage dummy club are two triangles whose upper and lower positions are inverted. A third stage dummy club is a lower dummy club, and a fourth stage dummy club is a side dummy club. Concave shape ports are butt-joint openings whose surfaces are matched with the surfaces of the convex ports. The concave shape port which is matched with the first stage dummy club in a butt-joint matching mode is a triangle slot opening; the concave shape port which is matched with the second stage dummy club in a butt-joint matching mode is a butt-joint opening; the concave shape port which is matched with the third stage dummy club a butt-joint opening; the concave shape port which is matched with the fourth stage dummy club in a butt-joint matching mode is a butt-joint opening. The matching among the surfaces of the multiple overlapped fully-sealed piston ring is firm. A plurality of defending lines eliminate the end clearances and the back clearances of the ring openings of the multiple overlapped fully-sealed piston ring. The working pressure of a burning chamber is effectively ensured, the power of an engine is enhanced, the problems of the gas blowby and the oil blowby of the engine are avoided, fuel oil and lubricating oil are saved, and the service life of the multiple overlapped fully-sealed piston ring is lengthened.

Description

Multiple lapped mouth type fully-sealed piston ring

Technical field: the utility model relates to a kind of seal arrangement, relates in particular to a kind of multiple lapped mouth type fully-sealed piston ring.

Background technique: traditional piston ring has only a docking port, this piston ring structure is simple, easily manufactured, cost is low, but this piston ring is along with the wearing and tearing of radial dimension and cylinder wall, the collar extension splaying is increased, pressurized gas and outburst gas will be scurried into crankcase from collar extension, lubricant oil also can be scurried into combustion chambers burn from collar extension simultaneously, thereby engine compression ratio and output power are reduced, a large amount of fuel consumption and lubricant oil, the result shortens the working life of motor, and exhaust pollution strengthens.For the sealability and the working life of improving piston ring, the Interface design that the document that has discloses piston ring becomes the overlapping inosculating type docking port of stepped form, the piston ring of the interface of this form is owing to be many steps eclipsed from, thereby formed multiple-sealed defence line, better than traditional close performance of having only a docking port, long service life, but owing to adopt horizontal flatly vertically dock between the face of the docking port of this kind piston ring and the face, thereby this docking mode still has much room for improvement in sealability with on working life.

Summary of the invention: increase easily for overcoming traditional piston ring joint gap, shorten its working life and cause the problem to the motor infringement, the purpose of this utility model provides a kind of piston ring of new interface mode to improve the multiple lapped mouth type fully-sealed piston ring of its performance.

The technical solution of the utility model realizes in the following manner:

A kind of multiple lapped mouth type fully-sealed piston ring: it adopts the collar extension that convex-concave is pegged graft and butt joint combines of many steps, wherein, the convex port is the level Four boss, the section of the section of first order boss and second level boss is two triangles that upper-lower position is put upside down, third level boss is a lower convex platform, fourth stage boss is the side boss, female port is the docking port that coincide with male end actinal surface and face, the triangular notch that coincide with first order boss for pegging graft and coincideing, with second level boss coincide for dock identical docking port, what dock with third level boss is docking port, dock the docking port that is that coincide with fourth stage boss.

The section of first order boss, second level boss is two right-angled triangles that upper-lower position is put upside down, and the triangular notch section is the right-angled triangle that coincide with first order boss.

Fourth stage boss, third level boss are respectively rectangle, and two rectangular boss are vertical mutually.

Good effect of the present utility model is: multiple folded coincideing between face and the face, coincide firmly between face and the face, and multiple defence line has been eliminated the end gap and the back clearance of piston ring collar extension, effectively guaranteed the working pressure of firing chamber, improve the power of motor, stopped the motor gas blowby, scurry oily problem, saved fuel oil, lubricant oil, increase the service life, simultaneously, because the working pressure of firing chamber has had assurance, fuel oil can fully burn, exhaust pollution reduces, and prolonged the working life of piston ring.

Description of drawings:

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is the structural representation in the multiple tone joint close crack of splicing of the present utility model.

Fig. 3 is the sectional schematic diagram of the utility model male end interface.

Fig. 4 is the sectional schematic diagram of the utility model female end interface.

Embodiment:

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

By Fig. 1 to Fig. 4 as can be seen, the utility model adopts the collar extension that the convex-concave of many steps is pegged graft and butt joint combines, overlapping the coincideing of form of adopting inclined-plane and plane to combine between its face and the face; The convex port is the level Four boss, the section that first order boss 1 is arranged in its section of top and second level boss 4 is two triangles that upper-lower position is put upside down, third level boss 3 is positioned at the bottom for lower convex platform, fourth stage boss 2 is the side boss, be positioned at the opposite side of first order boss, the axial dimension of fourth stage boss 2 equates with piston ring, first order boss 1, boss 4 radial dimensions in the second level equate, female port is the docking port that coincide with male end actinal surface and face, the triangular notch 7 that coincide with first order boss 1 for pegging graft and coincideing, with second level boss 4 coincide for dock identical docking port 6, what dock with third level boss 3 is docking port 5, dock with fourth stage boss 2 coincide be docking port 8; Can be found out by Fig. 3, Fig. 4: the section of first order boss 1, second level boss 4 is two right-angled triangles that upper-lower position is put upside down, what triangular notch 7 sections and first order boss 1 coincide is the right-angled triangle notch, the one side of two matching surfaces is that vertical plane coincide, another side is that the inclined-plane coincide promptly, and two triangle is formed a rectangle; Fourth stage boss 2 is respectively rectangle with third level boss 3, and two rectangles are vertical mutually; As seen from Figure 2, form bending more than, multiple lap seam after male end interface and female end interface coincide, effectively prevent to scurry oil and gas blowby.

Claims

1, a kind of multiple lapped mouth type fully-sealed piston ring: it adopts the collar extension that convex-concave is pegged graft and butt joint combines of many steps, it is characterized in that: the convex port is the level Four boss, the section of the section of first order boss (1) and second level boss (4) is two triangles that upper-lower position is put upside down, third level boss is lower convex platform (3), fourth stage boss is the side boss, female port is the docking port that coincide with male end actinal surface and face, the triangular notch (7) that coincide with first order boss (1) for pegging graft and coincideing, with second level boss (4) coincide for dock identical docking port (6), what dock with third level boss (3) is docking port (5), dock with fourth stage boss (2) coincide be docking port (8).

2, multiple lapped mouth type fully-sealed piston ring according to claim 1, it is characterized in that: the section of first order boss (1), second level boss (4) is two right-angled triangles that upper-lower position is put upside down, and triangular notch (7) section is the right-angled triangle that coincide with first order boss (1).

3, multiple lapped mouth type fully-sealed piston ring according to claim 2 is characterized in that: fourth stage boss (2) is respectively rectangle with third level boss (3), and two rectangles are vertical mutually.