CN2405018Y

CN2405018Y - Seamed and closed type piston ring

Info

Publication number: CN2405018Y
Application number: CN 00213284
Authority: CN
Inventors: 张桂武
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-24
Filing date: 2000-01-24
Publication date: 2000-11-08
Anticipated expiration: 2010-01-24

Abstract

The utility model discloses a piston ring with a closed opening, which is characterized in that the end of the side edge 1 of the opening of a piston ring is provided with a lower inclined plane 3, and the end of the side edge 2 of the opening is provided with an upper inclined plane 4. The utility model has the advantages that processing of joints is easy and convenient, two inclined planes at the joints are overlapped and matched together all along within range of allowable clearance matching of the piston ring to play effective and reliable sealing action, and service life of the piston ring is extended.

Description

A kind of opening closed type piston ring

The utility model relates to internal combustion engine component, particularly the piston ring of internal-combustion piston engine.

Internal-combustion engine piston ring in the prior art is generally the end-fitting on a straight end-fitting or an inclined-plane, and it is bigger to leak gas, and the wearing and tearing after-opening increases, gas leakage increases, and lowers efficiency fuel consumption and lubricant oil, it is insufficient to burn, and also may pollute, and influence is used and environment.The someone has proposed various solutions for this reason, to overcome the deficiency that original piston ring exists.The utility model also is in order to overcome the deficiency that existing piston ring exists, and design.

The purpose of this utility model is bigger for the closed gap of the collar extension that overcomes the piston ring in the prior art, and must have the deficiency of the fit of opened gap, designs a kind of opening closed type piston ring.

The purpose of this utility model is to realize according to following structure, has a lower inclined plane 3 in the end of the open side edges 1 of this piston ring, has a ramp 4 in the end of its side 2.Last lower inclined plane cooperates at the joint overlap joint, and each has extended one section to the other side.Form the overlap joint inclined-plane of a sealing, increased the reliability of sealing.

The utility model has the advantages that joint processing is simple and convenient, two inclined-planes of joint are in the allowable clearance cooperation scope of piston ring, and overlap joint is combined together all the time, played seal action effectively reliably.

The following drawings explanation, accompanying drawing 1 is the schematic representation of piston ring in the mounting point, accompanying drawing 2 is worm's eye views of accompanying drawing 1, accompanying drawing 3 is plan views of accompanying drawing 1, and accompanying drawing 4 is front views of the end of the piston ring in the accompanying drawing 1, and accompanying drawing 5 is worm's eye views of accompanying drawing 4, accompanying drawing 6 is front views of the end side of piston ring, accompanying drawing 7 is plan views of accompanying drawing 6, and accompanying drawing 8 is that piston ring is assemblied in the cross section view in the piston ring groove, the view of the aperture position when Fig. 9 is the free state of piston ring.Sequence number in the accompanying drawings is: 1,2, the both side ends of piston ring, and 3, ramp, 4, lower inclined plane, 5, piston.

Below in conjunction with the example in the accompanying drawing, structure of the present utility model and use are described.With reference to accompanying drawing, the both sides, end of the match ring of living, respectively have an inclined-plane 3 and 4, two inclined-planes each with the base at its place angles into about 45 degree, but its angle direction is opposite.When it was assembled together, two inclined-planes interosculated, and formed the fitting surface of an overlap joint, as shown in accompanying drawing 8.Like this, no matter piston ring scuffing is to what degree, and in the scope of the fit up gap of its design, these two inclined-planes overlap all the time, because piston ring is closed all the time, therefore can effectively carry out the gas sealing, has played the better seal effect.When for example the opened gap of piston ring regulation may wear to the gap and increases 0.50 millimeter, this piston ring just needed to change.But when it has used piston ring of the present utility model, if the extrusion of last lower inclined plane is about 1 millimeter (from accompanying drawing 7 its extension) as can be seen, reserve 0.50 mm clearance during assembling, like this when using wearing and tearing, leave 0.50 millimeter up to may wear between two inclined-planes, just reach the requirement that replacing is scrapped in the design wearing and tearing.Theoretically, can improve 2-5 times of working life.Improved the working life of piston ring greatly.The piston ring that is applicable to all kinds of reciprocating pistons uses.

Claims

1, a kind of opening closed type piston ring is characterized in that the end of the open side edges (1) at piston ring has a lower inclined plane (3), has a ramp (4) in the end of its side (2).