CN203130278U

CN203130278U - Full sealed piston and piston ring

Info

Publication number: CN203130278U
Application number: CN 201320147956
Authority: CN
Inventors: 潘文艺
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-14
Anticipated expiration: 2023-03-28

Abstract

The utility model relates to a full sealed piston and piston ring, which comprise the piston and the piston ring and are characterized in that an oil ring annular path and an air ring annular path on the piston are set to be spiral, the piston ring is provided with overlapping contact faces, and the lower end face of the piston ring and the piston are in tight contact. The full sealed piston and piston ring have the advantages of being good in sealability, stable in idle speed, fast in accelerating, economical, durable and the like.

Description

Hermetic piston and piston ring

Technical field

The utility model belongs to auto parts machinery, especially a kind of hermetic piston and piston ring.

Background technique

Traditional piston ring and the sealing contact surface of piston are all on same plane, so piston ring all must stay an opened gap, prevent that piston ring can be not stuck in cylinder when expanded by heating, this will cause, and inflammable mixture leaks to advance in the crankcase from the firing chamber in the process of compressed action, wearing and tearing along with piston ring and cylinder, gas leakage further strengthens, and has influence on power character and the Economy of motor.

Summary of the invention

The purpose of this utility model is to overcome the problem of above-mentioned existence, provides a kind of good airproof performance, idling to stablize, accelerate hermetic piston and piston ring fast, economy and durability.

Technical solution of the present utility model is such, a kind of hermetic piston and piston ring, comprise piston, piston ring, it is characterized in that, oil ring circuit and compression ring circuit on the described piston are made as spirality, described piston ring is provided with overlapping surface of contact, and the lower end surface of piston ring closely contacts with piston.The girth of described piston ring is longer than the girth of cylinder, and surface of contact stack in piston ring two ends forms sealing surface; The height of the compression ring circuit spiral surface of contact of described piston is decided by the thickness of piston ring.

The utlity model has good airproof performance, idling is stable, accelerates soon advantages such as economy and durability.

Description of drawings:

Fig. 1 is overall structure plan view of the present utility model.

Fig. 2 is piston details plan view of the present utility model.

Fig. 3 is piston ring part plan view of the present utility model.

Fig. 4 is piston ring part three dimensional map of the present utility model.

In Fig. 1～Fig. 4, piston (1), piston ring (2), oil ring circuit (3), compression ring circuit (4), overlapping surface of contact (5).

Embodiment:

Most preferred embodiment of the present utility model is such, referring to figs. 1 through shown in Figure 4, a kind of hermetic piston and piston ring, comprise piston, piston ring, wherein, oil ring circuit 3 and compression ring circuit 4 on the described piston 1 are made as spirality, and described piston ring 2 is provided with overlapping surface of contact 5, and the lower end surface of piston ring 2 closely contacts with piston 1.The girth of described piston ring 2 is longer than the girth of cylinder, and piston ring 2 two ends surface of contact stacks form sealing surface; The height of the compression ring circuit 4 spiral surface of contact of described piston 1 is decided by the thickness of piston ring 2.

During use, because piston ring 2 two ends surface of contact stacks form sealing surface, can be not stuck in cylinder when piston ring 2 expanded by heating, inflammable mixture can't be from crankcase be bled in the firing chamber, in like manner, the 3 spiral designs of oil ring circuit, machine oil also can't be from the crankcase string to the firing chamber.

Claims

1. a hermetic piston and piston ring, comprise piston, piston ring, it is characterized in that, oil ring circuit (3) and compression ring circuit (4) on the described piston (1) are made as spirality, described piston ring (2) is provided with overlapping surface of contact (5), and the lower end surface of piston ring (2) closely contacts with piston (1).

2. hermetic piston as claimed in claim 1 and piston ring is characterized in that, the girth of described piston ring (2) is longer than the girth of cylinder, and surface of contact stack in piston ring (2) two ends forms sealing surface.

3. hermetic piston as claimed in claim 1 and piston ring is characterized in that, the height of compression ring circuit (4) the spiral surface of contact of described piston (1) is decided by the thickness of piston ring (2).