CN2388419Y

CN2388419Y - Piston-ring

Info

Publication number: CN2388419Y
Application number: CN 98233335
Authority: CN
Inventors: 李振海
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-08
Filing date: 1998-12-08
Publication date: 2000-07-19
Anticipated expiration: 2008-12-08

Abstract

The utility model discloses a piston ring. A lapping form is adopted by a notch 2 of the piston ring, namely one part of an outer lower angle or two outer lower angles at both ends of a ring body 1 is chipped off on the notch, end heads are mutually butted to compose a recess which is provided with an independent filling body or a filling body connected with an end head, and an integral ring is composed of the independent filling body or the filling body connected with the end head and the ring body 1. The utility model is used, and sealing effect can be effectively maintained. The utility model has the advantages of conservation of fuel, long service life, simple manufacture and easy installation. The piston ring is suited to be used on pistons of various internal combustion engines, air compressors, etc.

Description

Piston ring

The utility model relates to the piston ring technical field.

At present, the piston ring that internal-combustion engine, air compressor etc. use, in indentation, there, two terminations of piston ring are butt joint simply only, in use because the wearing and tearing breach increases gradually, sealing effect worse and worse, working life is short.

The purpose of this utility model provides a kind of piston ring, and it takes joint form, can realize the monocycle sealing, long service life.

The utility model is achieved in that a kind of piston ring, comprises body and breach, and the part that it is characterized in that pruning at least one termination of indentation, there ring body has an arcuation obturator, by the outer bottom in slit, and cooperates with the truncated section sealed type.

Its embodiment can be, the inferior horn part of pruning outside a termination of indentation, there ring body, and obturator and another termination are linked as an integral body, and the overlap joint back constitutes the domain.

Its embodiment also can be, an inferior horn part outside respectively pruning in two terminations of indentation, there ring body, two ends connect and constitute a recess, and the obturator that adapts at recess constitutes the domain with the ring body.

Use the utility model, because the outer downside of piston ring indentation, there adopts joint form, within the specific limits, even breach increases gradually, two terminations of piston ring are drawn back gradually, and breach still is in a kind of sealed mode overlap joint state, the sealing effect that can continue to remain valid, fuel saving, long service life is suitable for using on the pistons such as various internal-combustion engines, air compressor.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation of a kind of mode of execution of the utility model piston ring.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the structural representation of the another kind of mode of execution of the utility model piston ring.

Fig. 4 is the B-B sectional view of Fig. 2.

Among Fig. 1, Fig. 2, shown in piston ring comprise ring body 1 and breach 2, in the outer inferior horn in a termination of breach 2 places ring body 1 part of pruning, another termination has more a part, matches with truncated section, the two ends overlap joint formation domain is sealed and matched, and is oil-proof.

Among Fig. 3, Fig. 4, the inferior horn part of respectively pruning outside two terminations of breach 2 places rings body 1, two ends connects and constitutes a recess, place an obturator 3 at recess, obturator 3 matches with recess, and obturator 3 has radian, constitutes the domain with ring body 1, the realization sealed type cooperates, and the material of obturator 3 is generally identical with ring body 1.

Claims

1, a kind of piston ring comprises body (1) and breach (2), and the part that it is characterized in that pruning at least one termination of indentation, there ring body has an arcuation obturator, by the outer bottom in slit, and cooperates with the truncated section sealed type.

2, piston ring according to claim 1 is characterized in that outside breach (2) locates to encircle a termination of body (1) the inferior horn part of pruning, and obturator (3) is linked as an integral body with another termination, and the overlap joint back constitutes the domain.

3, piston ring according to claim 1, it is characterized in that an inferior horn part outside respectively pruning in two terminations that breach (2) locates to encircle body (1), two ends connects and constitutes a recess, and the obturator (3) that adapts at recess constitutes the domain with ring body (1).