CN2680882Y

CN2680882Y - Piston ring of internal combustion engine

Info

Publication number: CN2680882Y
Application number: CN 200420035322
Authority: CN
Inventors: 颜兴辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2005-02-23
Anticipated expiration: 2014-03-11

Abstract

The utility model relates to a piston ring, in particular to a piston ring for internal-combustion engine. The utility model provides an improved piston ring which changes the traditional multiple rings into one ring, and therefore, the utility model has simple structure and good sealing performance. The utility model is characterized in that the piston ring of internal combustion engine comprises an external ring and an internal ring, the cross sections of the external ring and the internal ring are triangular, the internal ring is arranged in the external ring, dislocation of the external ring and the internal ring is more than 90 degrees, and the utility model is mainly used for the piston ring for internal-combustion engine.

Description

A kind of internal-combustion engine piston ring

Technical field

The utility model relates to a kind of piston ring, relates in particular to a kind of internal-combustion engine piston ring.

Background technique

Existing internal-combustion engine piston ring is made up of three roads mostly, per pass a slice, and resistance is big at most, abrasion is big for piston ring, top ring does not have oil lubrication, after use a period of time, and collar extension broadening, leak gas, lubricant oil enters burn oil in the firing chamber, causes degradation phenomenon generation under the power of IC engine.

Summary of the invention

The purpose of this utility model is to provide a kind of improved internal-combustion engine piston ring, to overcome above-mentioned shortcoming.

Technical solution of the present utility model is to change original piston ring into ring one by three road rings, piston ring is made up of outer shroud and interior ring, the section of inner and outer rings is all triangular in shape, mutual distance that interior ring places in the outer shroud and inside and outside collar extension misplaces is more than 90 °, thereby guaranteed its excellent sealing, the air in the cylinder can not be spilt when compression cylinder sleeve.

Of the present utility model being characterised in that: it is made up of outer shroud 1 and interior ring 2, and the section 3 of described outer shroud 1 and the section 4 of interior ring 2 are all triangular in shape, and interior ring 2 places in the outer shroud 1, and outer collar extension 5 is mutual apart from more than 90 ° with interior collar extension 6 dislocation.

The utility model has the advantages that simple in structure, change ring into one by three original road rings, piston ring is made up of outer shroud and interior ring, the section of inside and outside ring is all triangular in shape, and the dislocation of inside and outside collar extension is mutually apart from more than 90 °, like this, just guaranteed its excellent sealing to cylinder sleeve, air in the cylinder can not be leaked gas when compression, avoided collar extension broadening to leak gas, lubricant oil enters that burn oil causes degradation drawback under the power of IC engine in the firing chamber.

Description of drawings

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

Fig. 2 is the structural representation of the utility model outer shroud.

Fig. 3 is the structural representation of ring in the utility model.

Among the figure: encircle collar extension in section, the outer collar extension of 5-, the 6-in 1-outer shroud, the 2-in ring, 3-outer shroud section, the 4-.

Embodiment

Below in conjunction with accompanying drawing the utility model and embodiment thereof are described in further detail.

Referring to accompanying drawing 1-3, pass through machining, the outer shroud 1 and the interior ring 2 that prepare piston ring in advance, make the section 4 of the section 3 of outer shroud 1 and interior ring 2 all triangular in shape, then interior ring 2 is overlapped in the annular groove of the piston of packing into, the outside of ring 2 in again outer shroud 1 being sleeved on, and make

interior collar extension

6 and 5 dislocation of outer collar extension mutually apart from 92 °, thus finish the assembly process of piston ring.

Claims

1, a kind of internal-combustion engine piston ring, it is characterized in that: it is made up of outer shroud (1) and interior ring (2), the section (3) of described outer shroud (1) and the section (4) of interior ring (2) are all triangular in shape, and interior ring (2) places in the outer shroud (1), and outer collar extension (5) is mutual apart from more than 90 ° with interior collar extension (6) dislocation.