CN2516716Y

CN2516716Y - Piston, piston ring assembly of internal-combustion engine

Info

Publication number: CN2516716Y
Application number: CN 01257575
Authority: CN
Inventors: 易琼
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2002-10-16
Anticipated expiration: 2011-12-18

Abstract

The utility model relates to a piston and piston ring component of internal-combustion engines, belonging to a combustion engine part, which aims to solve the technical problem in the prior cylinder system that: due to the abrasion of the steel bush, the piston and the piston ring, the gap between the steel bush and the piston and the opening of the piston ring are augmented continually; that lead to the discharge of the gas and the lubricating oil, and also the service life is reduced. The essential of the technical proposal is that the structure comprises a piston body with two ring grooves. At the opening of the piston ring, a symmetrical front inner step is arranged at the ends of the upper and the lower half bodies; a corresponding back inner step is arranged at the end of the other half body without the front end; the piston ring is sleeved in the ring grooves and is superposed with the front inner step; the opening is correspondingly inosculated through the front and the back inner steps of the upper and the lower half bodies. The utility model the advantage of good sealing performance, so as to prevent the discharge of the gas and the lubricating oil, and prolong the service life of the cylinder system.

Description

Internal combustion engine, piston-ring packing

Technical field

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

Background technique

The opening of existing piston ring all is the plane otch, along with the growth of running time, owing to steel bushing, piston, wear of piston-rings, cause the gap of steel bushing and piston increasing, gap-clearance of piston rings increases, and causes gas and lubricant oil to scurry and lets out, and reduces the working life of piston and cylinder.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned deficiency, and provide a kind of good seal performance, the opened gap that can solve effectively because of piston ring produces the gas leakage problem, preventing that gas and lubricant oil from scurrying lets out, reduce fuel consumption, improve cylinder system internal combustion engine, the piston-ring packing in working life.

The purpose of this utility model is achieved in that internal combustion engine, piston-ring packing are included in piston, piston ring body that the endless belt position is provided with twice compression, one oil ring groove, there is symmetrical preceding interior ladder the end that it is characterized in that gap-clearance of piston rings place upper and lower semi-body, the ring body section of step length is removed other halfbody part respectively in port is extended down to before two, the end of halfbody part has respectively and the interior ladder in the corresponding back of preceding interior ladder in addition, and is fluted on the ring body circle edge except that open part.

The utility model is owing to adopt above design, after piston ring set is contained in the compression, opening is connected by corresponding the coincideing of forward and backward interior ladder on the upper and lower semi-body, improved sealability effectively, the opened gap that has solved because of piston ring produces the gas leakage problem, preventing that gas and lubricant oil from scurrying lets out, and reduces fuel consumption, the working life of having improved cylinder system.

Description of drawings

Fig. 1 is the piston structure schematic representation;

Fig. 2 is the piston ring structure schematic representation;

Fig. 3 is the plan view of Fig. 2.

Embodiment

Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.

Internal combustion engine, piston-ring packing comprise piston, piston ring body, are provided with twice compression 2, one oil ring groove at the endless belt position of piston body 1.There is the preceding interior ladder 4 of symmetry the end of piston ring 3 opening upper and lower semi-bodies, the ring body section of step length is removed other halfbody part respectively in port is extended down to before two, in addition the end of halfbody part have respectively and preceding in ladder 5 in the corresponding back of ladder, on the ring body circle edge except that open part fluted 6.Piston ring 3 is positioned in the compression 2, and preceding interior ladder 4 is corresponding overlapping, and the forward and backward interior ladder on upper and lower semi-body hermetic collar simultaneously connects.

Claims

1, a kind of internal combustion engine, piston-ring packing, be included in the endless belt position and be provided with twice compression (2), the piston of one oil ring groove, the piston ring body, it is characterized in that on piston ring (3) opening, there is the preceding interior ladder (4) of symmetry the end of lower semi-body, the ring body section of step length is removed other halfbody part respectively in port is extended down to before two, the end of halfbody part has respectively and the interior ladder (5) in the corresponding back of preceding interior ladder in addition, on the ring body circle edge except that open part fluted (6), piston ring (3) is positioned in the compression (2), ladder (4) is corresponding overlapping in preceding, on, before on the lower semi-body, ladder hermetic collar connection simultaneously in the back.