CN2463549Y

CN2463549Y - Plane bevel joint piston ring

Info

Publication number: CN2463549Y
Application number: CN 01212494
Authority: CN
Inventors: 毕广春; 安瑞章; 张雁闽
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-19
Filing date: 2001-02-19
Publication date: 2001-12-05
Anticipated expiration: 2011-02-19

Abstract

The utility model discloses a plane bevel joint piston ring which is suited to be used on an air compressor, an automobile engine, an internal combustion engine, a motorcycle and a tractor. The utility model is characterized in that a plane diagonal cut joint A is arranged on the plane of a piston ring 1, and the plane diagonal cut joint is arranged at the position of 83 DEG of a ring center. Favorable airtight performance can be ensured by the product. After wear of the piston ring and a cylinder body is enlarged through long operation, the plane diagonal cut joint of the piston ring naturally expands and opens, and the opening of the piston ring can be always maintained in a no gap state for a long term because the assembly structure of the product is that three rings or two rings are staggered and arranged.

Description

The plane bevel joint piston ring

The utility model relates to a kind of machinery and vehicle that is used to have piston, particularly a kind of plane bevel joint piston ring, and it is applicable to air compressor, motor car engine, internal-combustion engine, motorcycle and tractor or the like.

At present, general piston ring and piston are and radially head straight for mouthful or bevel joint piston ring radially on the market, adorn a piston ring in the groove of its piston, piston ring and groove be combined with certain clearance.After running, using, after cylinder body, the piston ring scuffing, its wearing and tearing nature strengthens, if the wearing and tearing on diameter are 0.1mm, will strengthen the gap of 0.31mm so at the opening of piston ring.This gap can not only make a large amount of lubricant oil enter in the atmosphere with the opening of its piston ring, but also increases the consumption of being clear oil; Often also need more rering and cylinder body simultaneously, increased maintenance expenses.

The purpose of this utility model is a kind of plane bevel joint piston ring of developing at above problem, it is that a diagonal cut joint is arranged on the plane of piston ring, this piston ring and compound groove piston have good sealing property, its plane diagonal cut joint is 83 degree places, piston ring center, and it does not radially all have penetrating collar extension slit.

The purpose of this utility model is to realize by following technological scheme: the feature of plane bevel joint piston ring is that a plane diagonal cut joint A is arranged on the plane of piston ring 1.

Good effect of the present utility model is:

1, this product can guarantee its good air-tightness energy, when piston ring and cylinder body after the long-term operation wearing and tearing strengthen, the diagonal cut joint place nature spreading of its piston ring, because of the assembly structure of this product is to be staggered by two rings or three rings in a piston groove, it can keep the opening of piston ring to be in seamless state all the time for a long time.

When 2, using this product, it can not only guarantee its machinery and vehicle long-term operation, and the piston ring after can also guaranteeing to wear and tear do not go here and there oil, air tight, has reduced the discharge amount of lubricant oil simultaneously, has saved the expense of a large amount of more rerings and cylinder body.

Description of drawings.

Fig. 1 is a structural front view of the present utility model.

Fig. 2 is the side view of the utility model Fig. 1.

Fig. 3 is three ring assembly structure figures of the present utility model.

Fig. 4 is the plan view of the utility model Fig. 3.

The utility model is described in further detail below in conjunction with accompanying drawing.

Shown in Fig. 1,2,3,4.Referring to Fig. 1,2, a plane diagonal cut joint A is arranged on the plane of piston ring 1, plane diagonal cut joint A is positioned at 83 ° of central point and locates.Shown in Fig. 3,4 is the structural drawing that the

piston ring

1,2,3 of inclined-plane, three planes opening is assemblied on the piston 5, the

piston ring

1,2,3 of three plane diagonal cut joints is contained in the groove of a piston 5, and the plane matching gap of the

piston ring

1,2,3 of three plane diagonal cut joints and the groove of piston 5 is 0.05mm.Referring to Fig. 4, plane diagonal cut joint A, B, the C on the

piston ring

1,2,3 of plane diagonal cut joint interlace 120 ° (if two

piston rings

1,2 are contained in the groove of piston 5, plane diagonal cut joint A, the B on the

piston ring

1,2 interlaces 180 ° so).Friction between

piston ring

1,2,3 and the cylinder body 4 does not enlarge the gap of plane diagonal cut joint A, B, C, and the plane diagonal cut joint after this structure still can guarantee to wear and tear does not have the gap, and it can make and remain sealing state in the cylinder.When

piston ring

1,2,3 and cylinder body 4 after long-term relative movement wearing and tearing, the inclined-plane nature spreading of its inclined-plane, plane opening piston ring, and its plane diagonal cut joint A, B, C still can keep opening seamless, the plane diagonal cut joint staggered 120 ° (or 180 °) of while three groups of (or two groups) composition rings, so, this gap can be sealed by the ring body of another piston ring, can make like this and remain sealing state in the cylinder, and can guarantee not go here and there oil, air tight, saved the more maintenance expense of rering and cylinder body simultaneously.

Claims

1, a kind of plane bevel joint piston ring is characterized in that: a plane diagonal cut joint (A) is arranged on the plane of piston ring (1).