CN201891521U

CN201891521U - Anti-breaking sealing piston ring

Info

Publication number: CN201891521U
Application number: CN201020598512XU
Authority: CN
Inventors: 蒋长城
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-07-06
Anticipated expiration: 2020-11-04

Abstract

The utility model discloses an anti-breaking sealing piston ring, which is not easy to break when in installation and use, and comprises a ring body, an upper lap joint, a lower lap joint and lap surfaces of the two lap joints, wherein the two lap joints are staggered and in concave arc transition with the ring body, and heads of the lap joints are circular arc-shaped. The anti-breaking sealing piston ring has the advantages of simple structure, low cost, difficulty in breaking, long service life, environmental protection and oil economization.

Description

A kind of rupture-preventing sealing piston ring

Technical field:

The utility model relates to a kind of engine piston ring, is specifically related to a kind of motor rupture-preventing sealing piston ring.

Background technique:

The available engine piston ring is the ring body of a band opening normally, two end faces of opening are the plane, generally are in contact with one another at two end faces of the gap-clearance of piston rings of new clothes in the piston circular groove, do not have intermittently, after piston ring scuffing to a certain degree, opening slowly enlarges, and sealing reduces.Afterwards in order to overcome above-mentioned shortcoming, opening end at piston ring has designed bridging arrangement, it is the lap joint that all there is one one hemizonid thickness at the two ends of opening, two lap joints coincide mutually and overlap, can obviously improve the sealing of piston ring, but because thin thickness, the intensity of lap joint are low, vibration resistance is poor, is the right angle between lap joint and the ring body, when installing and use, be easy to fracture, shortened working life.

Summary of the invention:

For solving the deficiencies in the prior art, the rupture-preventing sealing piston ring that the utility model has been not easy to rupture when a kind of installation and use are provided.

The utility model is achieved in that a kind of rupture-preventing sealing piston ring, comprise ring body, two staggered lap joints up and down, faying surface between the lap joint is the concave arc shape transition between described lap joint and the ring body, and the head of described lap joint is the circular arc head.

The angle X of the elongation line of faying surface and ring body substantially horizontal line is the 0-90 degree between the described lap joint.

The angle X of the elongation line of faying surface and ring body substantially horizontal line is 45 degree between the described lap joint.

The angle X of the elongation line of faying surface and ring body substantially horizontal line is 30 degree between the described lap joint.

The angle X of the elongation line of faying surface and ring body substantially horizontal line is 15 degree between the described lap joint.

Utilize concave arc shape transition or triangle transition to strengthen the intensity at right angle between the utility model lap joint and the ring body, the place of taking mouthful right angle like this is that face is stressed, rather than puts stressed.The angle X of the faying surface of the utility model rupture-preventing sealing piston ring and the substantially horizontal of ring body is the 0-90 degree, has adopted to be overlapping, to eliminate automatically the gap.Its principle is: after piston ring excircle wearing and tearing and cylinder inner wall wearing and tearing, gap-clearance of piston rings place is opened automatically owing to the elastic force effect, since the effect of " being overlapping ", the phenomenon of loss of pressure when the sealing variation that the collar extension gap change of having avoided the conventional piston ring to produce because of the back of wearing and tearing brings greatly, engine operation.Simultaneously, in wear process because the existence at inclination angle, again can " part be overlapping " because the gap of bringing when expanding is filled up automatically, can remain the transition gap state.Further strengthen the tightness between piston ring and the cylinder wall, thereby improved mechanical efficiency, reduced the loss of machine oil.Because the raising of the efficiency of internal combustion engine that bubble-tight raising brings; thereby make the combustion in IC engine acting more abundant; more fuel-efficient (can the saving about machine oil 20-30%; save about gasoline or diesel oil 5-15%); when preventing the machine oil loss; also make the composition that discharges harmful gas in the tail gas reduce about 40-50%, more meet requirement on environmental protection.

The advantage of the utility model rupture-preventing sealing piston ring is simple in structure, and cost is low, easy-rupturing not, long service life, environmental protection, fuel-efficient.

Description of drawings:

Accompanying drawing 1 is a kind of example structure schematic representation of the present utility model.

Accompanying drawing 2 is the main sectional view of the local enlarged portion A of Fig. 1.

Among the figure: 1, ring body; 2, lap joint; 3, faying surface; 4, concave arc shape transition.

Embodiment:

Below in conjunction with drawings and Examples, the utility model is described in further detail, but is not constituted any restriction of the present utility model:

Referring to Fig. 1, Fig. 2, a kind of rupture-preventing sealing piston ring of the utility model comprises ring body 1, two staggered lap joints 2 up and down, the faying surface 3 between the lap joint 2, be concave arc shape transition 4 between described lap joint 2 and the ring body 1, the head of described lap joint 2 is the circular arc head.The angle X of the elongation line of faying surface 3 and ring body 1 substantially horizontal line is 45 degree between the described lap joint 2.

Claims

1. rupture-preventing sealing piston ring, comprise ring body (1), two staggered lap joints (2) up and down, faying surface (3) between the lap joint (2), it is characterized in that: be concave arc shape transition (4) between described lap joint (2) and the ring body (1), the head of described lap joint (2) is the circular arc head.

2. rupture-preventing sealing piston ring according to claim 1 is characterized in that: the angle X of the elongation line of faying surface (3) and ring body (1) substantially horizontal line is the 0-90 degree between the described lap joint (2).

3. rupture-preventing sealing piston ring according to claim 2 is characterized in that: the angle X of the elongation line of faying surface (3) and ring body (1) substantially horizontal line is 45 degree between the described lap joint (2).

4. rupture-preventing sealing piston ring according to claim 2 is characterized in that: the angle X of the elongation line of faying surface (3) and ring body (1) substantially horizontal line is 30 degree between the described lap joint (2).

5. rupture-preventing sealing piston ring according to claim 2 is characterized in that: the angle X of the elongation line of faying surface (3) and ring body (1) substantially horizontal line is 15 degree between the described lap joint (2).