CN2202801Y

CN2202801Y - Long-service gapless piston ring

Info

Publication number: CN2202801Y
Application number: CN 93239798
Authority: CN
Inventors: 吴祥军
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-29
Filing date: 1993-12-29
Publication date: 1995-07-05
Anticipated expiration: 2003-12-29

Abstract

The utility model relates to a long-service gapless piston ring, which is characterized in that the inner part and the outer part of the cross section of the opening of the piston ring are staggered to form an incision. No gap exists the opening of the piston ring. Compared with a common piston ring, the utility model improves service life by five times to ten times. The service life of a cylinder is improved by two times to four times. In addition, the utility model has the advantages of the improvement of horse power, the increase of force, fuel saving, and lubricant saving. Because the piston ring can ensure higher sealability, a plurality of rings can be are converted into monolithic rings. Friction loss is effectively reduced. High-temperature waste gas which is created after burning can not leak into a crankcase. So the utility model is suirable for an internal combustion engine and a gas compressor.

Description

Long-service gapless piston ring

A kind of function, energy-saving long lifetime gapless piston ring that increases is mainly used in gas compressor, and internal-combustion engine and other various reciprocating machines belong to the engineering part class.

Present gas compressor, internal-combustion engine and other various machineries in the form of piston, the piston ring port that uses is straight cut substantially, after this piston ring used a period of time, the port gap can be strengthened with wearing and tearing, causes serious gas leakage, the decline of exerting oneself, oil consumption is risen.Only abandon need not, therefore influenced working life widely.

The purpose of this utility model is that a kind of long-lived gapless piston ring will be provided, and this piston ring can overcome the defective and the deficiency of vertical cut choma.The utility model is changed pot type piston ring straight cut and is inside and outside wrong notch-cut type.Good sealing effect, and can not influence sealing effect after the piston ring scuffing.Therefore improve 5～10 times working life.Institute's cylinder life-span is also improved 2～4 times thereupon, and saves fuel oil and lubricant oil, improves the piston ring working efficiency.

The opening both ends of the surface of piston ring that are characterised in that of the present utility model are inside and outside wrong notch-cut type, from the centre of two end ring be divided into Nei Yuan and outside garden two-part, the top in garden in wherein an end vertically cuts from end face, the bottom keeps, the parallel undercut in outer garden divides but does not trim with the ring part, keeps top; The lower half portion in garden in the other end vertically cuts along central ring keeps upper half part, and outer garden part of horizontal cuts upper half part, keeps lower half portion, but does not trim with the bottom in interior garden, can closely cooperate after making the mutual iron chains embedding in two ends.

Following structure accompanying drawing further describes the utility model.

Fig. 1 is the utility model plan view;

Fig. 2 is the II enlarged view of Fig. 1 side view;

Among Fig. 1,2,1 piston ring body, the outer otch of 2 end faces, otch in 3 end faces

During use, at first will choose suitable lash piston ring two ends pulls open, be inserted in the piston ring groove of piston, making the two ends compression wherein then, an end is inserted in the other end as far as possible, two ends cooperate closely, again the piston ring that packages is packed in the piston-cylinder, and then other parts such as connecting rod are assembled routinely, normally use on request.

The utility model advantage is to compare good seal performance with the pot type piston ring. If use normally, leakage efficiency can exceed the pot type piston ring more than one times, and behind the piston wear, outer garden length reduces, and the gap is strengthened, but as long as the wrong otch in inside and outside garden is obstructed, still can use, so service life is than 5～10 times of pot type piston ring raisings.

Embodiment, the piston of the tractor of 1100 series is pulled out, change the piston ring of former use, the utility model piston ring of equal specification and technical requirements processing is inserted in, keeping former piston ring fit up gap to be reinstalled under the 1100 serial tractor equal conditions uses, fuel consumption per hundred kilometers descends about 10%, and exceeds 7 times than former piston ring working life, the also corresponding raising about 10% of horsepower.Between the spreadable life, sealing effect and machine oil loss obviously improve.

Claims

1, a kind of long-lived gapless piston ring, the face that it is characterized in that the opening two ends of piston ring is inside and outside wrong notch-cut type, from the centre of two end ring be divided into Nei Yuan and outside garden two-part, the top in garden in wherein an end vertically cuts from end face, the bottom keeps, the parallel undercut in outer garden divides but does not trim with the ring part, keeps top; The lower half portion in garden in the other end vertically cuts along central ring keeps upper half part, and outer garden part of horizontal cuts upper half part, keeps lower half portion, but does not trim with the bottom in interior garden, can closely cooperate after making the mutual iron chains embedding in two ends.