CN2258229Y

CN2258229Y - New piston ring

Info

Publication number: CN2258229Y
Application number: CN 96220540
Authority: CN
Inventors: 陈灿东
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-28
Filing date: 1996-08-28
Publication date: 1997-07-23
Anticipated expiration: 2006-08-28

Abstract

The utility model relates to a new overlapped piston ring. The upper part of the left end and the lower part of the right end on the cut part are respectively cut away a half part whose length is 1 mm, and the vertically overlapped coupled sealing state is formed. The elastic and expansion performances of the piston ring are unchanged, but the service life can be enhanced more than two times, the leakage in the cylinder can be reduced, the discharge amount of the waste gas can be reduced, the pollution ca be reduced, and the utility model is suitable for various four-stroke internal combustion engines.

Description

Novel overlapping piston ring

The utility model relates to a kind of novel overlapping piston ring, belongs to the technical field of internal combustion engine fittings.

Usually the piston ring of quartastroke engine, be a ring in addition part cut the openning that about hairline is thin, make it have elasticity, can open and shrink, piston ring passes through tension force during use, makes the mutual coupling of its outer ring and cylinder inner wall and seals.Make interior mixed gas perfect combustion of compressing of cylinder body and outburst and work done; The breach of piston ring makes mixed gas from incision toward the crankcase internal leakage when compression ignition combustion, therefore adopt the secondary seal method to solve leakage problem, just under first compression ring, add the second road compression ring again, the second road compression ring still leaves otch, still can leak, piston ring has otch, mainly be to make it have elasticity and hypertonic performance, new piston ring used after a period of time, the gap increases between ring and the casing wall because wearing and tearing make, and leakage rate also increases, and also sucks lubricant oil in the cylinder body in the firing chamber during breathing process, together burn with mixed gas thereby discharge blue smoke waste gas, befouling environment.During internal-combustion engine outburst process, high-temperature gas and spark also can flow in the crankcase, make internal-combustion engine take place overheated and oiling agent is reduced, increasing consumption of lubricating oil also makes mechanical wear speed increase, and make carbon distribution increase in the firing chamber, and exhaust valve is also leaked gas because of carbon distribution, internal-combustion engine can not be run well.

The purpose of this utility model provides a kind of novel overlapping piston ring, and it can overcome above-mentioned shortcoming, and favorable sealing property can reduce leakage, reduces carbon distribution, reduces the discharge of harmful gases amount, and internal-combustion engine life-span is significantly improved.

The purpose of this utility model is to realize like this

A kind of novel overlapping piston ring, it is characterized in that the incision of piston ring (1), left end (2) top and right-hand member (3) bottom respectively cut length be 1mm half partly, coupling can overlap up and down mutually.

Fig. 1 piston ring profile schematic representation

Fig. 2 piston ring otch schematic representation

Fig. 3 piston ring otch sectional view

Now in conjunction with the accompanying drawings the structure of novel piston ring is described in detail

By Fig. 1,2,3 novel piston rings (1) also is ring part in addition, than piston ring lengthening 2mm commonly used, its incision is divided into two ends, the left and right sides to piston ring, and left end (2) top cuts half part that length is 1mm, and right-hand member (3) bottom also cuts half part that length is 1mm.The cylinder block of packing into forms later on overlap up and down coupling and a sealing state fully, and has kept original elasticity and hypertonic performance.

When the novel piston ring contrast was on probation, a 4 stroke motorcycle of the original piston ring of discovery use had once run 15,000 kilometers and has begun to emit blue smoke, just can not restart subsequently.Use novel overlapping piston ring instead, move more than 40,000 kilometer, do not smolder, still can normally move, through checking, find that casing wall has wearing and tearing, the cylinder chamber increases, and piston ring has opened 0.7mm, but still less than the interface of 1mm, so that sealability still can keep is good.

Compared with prior art, novel piston has following advantages:

1, the piston ring incision forms up and down overlapping coupling, and sealing state is good;

2, use this piston ring need not change the size of original piston-shaped and piston ring groove, The mechanical performance of ring, such as cirrhosis: intensity, elasticity etc. all change;

3, reduce leakage, the life-span of improving ring reaches more than 1 times.

Claims

1, a kind of novel overlapping piston ring is characterized in that the incision of piston ring (1), and left end (2) top and right-hand member (3) bottom respectively cut half part that length is 1mm, and coupling can overlap up and down mutually.