CN2752462Y - Air leaking prevention piston ring unit - Google Patents

Abstract

The utility model relates to an air leakage preventing piston ring assembly, which comprises a cylinder sleeve, a piston and a gas ring and an oil ring which are arranged on respective piston ring grooves. The air leakage preventing piston ring assembly is characterized in that two gas rings are arranged on each of the piston ring grooves, and the inner sides of the two gas rings are provided with a leakproof air cushion ring; namely, the piston ring assembly is formed by two gas rings and one leakproof air cushion ring. By utilizing the piston ring assembly formed by the two gas rings and the leakproof air cushion ring, limited air in the cylinder sleeve can be prevented to leak through the seam position of a ring opening furthest, thereby, an engine can be ensured to maintain the power of the original technical design for a long time; simultaneously and correspondingly, the fuel is saved, the maintenance cost is reduced and the service life of the engine is extended.

Description

Prevent the piston ring group of leaking gas

Technical field:

The utility model relates to a kind of other machinery such as explosive motor, steam engine that are used for and is located at air leak proof piston ring group on the cylinder body piston.

Background technique:

At present, in the power system that motor produces, mostly adopt the power take-off that constitutes by cylinder sleeve, piston and piston ring.Be with two above compression rings and an above oil ring on the piston, and each piston ring groove only overlaps a compression ring.The disadvantage of this kind structure is: can only guarantee that motor is in new or more renew ring and the time just can reach intrinsic power.Generally, no matter any new vehicle or motor be through just finding after running-in period, all the different fuel consumption above art designs of degree.Direct, the most maximum reason that this result occurs is exactly because the increasing of compression ring and barrel wear through the motor of running-in period, the collar extension seam uses and more increases, make the corresponding increase of air leakage rate by the collar extension slit that increases, engine power descends, fuel consumption increases thereby make, and causes burning lubricant oil and the stage of having to upgrade component.

Summary of the invention:

Deficiency in view of above-mentioned prior art existence, the purpose of this utility model is that a kind of piston ring group of leaking gas of can preventing effectively can be provided, make it to stop to greatest extent the interior limited air of cylinder by the collar extension seam leakage, thereby guarantee that motor can keep intrinsic power for a long time, and further reach fuel saving, reduce maintenance expenses and prolong the motor effect in working life.

The purpose of this utility model is achieved in that it comprises that cylinder sleeve, piston and branch are located at compression ring and the oil ring on each piston ring groove, it is characterized in that: on each piston ring groove, be provided with two compression rings, be provided with the anti-gas-leak gasket ring two compression ring inboards, promptly constitute the piston ring group by two compression rings and an anti-gas-leak gasket ring.Can prevent effectively that by the anti-gas-leak gasket ring air from passing through the leakage to another one compression ring collar extension seam of slit between a compression ring collar extension seam and piston ring groove and the compression ring, prevent simultaneously on a piston ring groove that two compression rings rotate and the collar extension seam of the collar extension seam that causes two compression rings and anti-gas-leak gasket ring aligns.

For directly stopping the leakage of compression ring collar extension seam, collar extension seam mutual dislocation 180 degree of two compression rings.

The utility model has the advantages that: utilize the piston ring group that constitutes by two compression rings and anti-gas-leak gasket ring can stop to greatest extent that limited air leaks by collar extension seam place in the cylinder sleeve, thereby guarantee that motor can keep the power of former art designs for a long time, corresponding fuel saving, reduce maintenance expenses and prolong motor working life.

Below in conjunction with accompanying drawing the utility model is explained.

Description of drawings:

Fig. 1 is the utility model structural representation;

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

Embodiment:

By accompanying drawing as can be known, the utility model mainly is made of cylinder sleeve 1, piston 2, compression ring 3,4 and oil ring 6, anti-gas-leak gasket ring 5.Two compression rings 3,4 are located on each piston ring groove 2-1, (promptly between two compression rings 3,4 and the piston ring groove 2-1) is provided with anti-gas-leak gasket ring 5 in two compression rings, 3,4 inboards, constitute piston ring group (only indicate a group among the figure, during practical application at least two groups or more) by 3,4 and anti-gas-leak gasket rings 5 of two compression rings.The collar extension seam 3-1 of two compression rings 3,4,4-1 mutual dislocation 180 degree are not promptly in the same side.

Claims (2)

1, a kind of piston ring group of leaking gas of preventing, it comprises that cylinder sleeve, piston and branch are located at compression ring and the oil ring on each piston ring groove, it is characterized in that: on each piston ring groove, be provided with two compression rings, be provided with the anti-gas-leak gasket ring two compression ring inboards, promptly constitute the piston ring group by two compression rings and an anti-gas-leak gasket ring.

2, the piston ring group of leaking gas of preventing as claimed in claim 1 is characterized in that: collar extension seam mutual dislocation 180 degree of two compression rings.

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