CN2425204Y

CN2425204Y - Totally enclosed piston ring

Info

Publication number: CN2425204Y
Application number: CN 99252931
Authority: CN
Inventors: 孟函颖; 孟祥西
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-10
Filing date: 1999-11-10
Publication date: 2001-03-28
Anticipated expiration: 2009-11-10

Abstract

The utility model discloses a totally enclosed piston ring which is used for gasoline and diesel engines and various gas compressors. An opening is composed of an outer gap and an inner gap, and a sealing surface is arranged between the two gaps. Two totally enclosed piston rings are arranged in a piston groove, and a totally enclosed state can be formed when the utility model is used and the openings are staggered. Compared with the ordinary piston ring, sealing efficiency can be enhanced by five to ten times, and an air stringing phenomenon caused by the through opening of the ordinary piston ring is effectively overcome. The utility model is used in an engine, fuel oil can be saved, discharging amount of harmful gas is reduced, and power of the engine is enhanced. The totally enclosed piston ring is used in various gas compressors, gas pressure can be enhanced, and motive power is saved.

Description

The completely closed piston ring

The utility model belongs to a kind of completely closed piston ring that is used for petrol engine, diesel engine and all gases compressor.

The all gases compressor of the motor of automobile, steamer, tank, tractor and some industrial and mining enterprise all uses piston ring.At present, the motor of various types and compressor all are to adorn a piston ring with straight-through opened gap in a piston groove, thereby engine piston inevitably exists the phenomenon of collaborating in compression stroke, wearing and tearing along with piston ring and cylinder wall, the opened gap of piston ring can increase day by day, causes the phenomenon of collaborating more serious, for motor, this means that some fuel that do not fire enter atmosphere, both wasted oil plant, befouling environment has again also reduced the power of motor.And for gas compressor, then be both to have wasted power, reduced gas pressure again.

The purpose of this utility model is in order to overcome the above-mentioned defective that the pot type piston ring exists effectively, and promptly the phenomenon of collaborating that exists of piston ring gap discloses a kind of due elasticity of piston ring that both had, again the completely closed piston ring of straight-through opening not.

The purpose of this utility model is to realize like this, the completely closed piston ring, its profile is circular, the annulus bi-side are the plane or the conical surface that is parallel to each other, and its periphery can be cylndrical surface, conical surface or arc surface etc., and its opening does not lead directly to, but by the outer gap of the certain distance that staggers mutually and in gap form, a sealing surface is arranged between two gap, and the sealing face is communicated with inside and outside gap, and completely closed piston ring opening is divided into two-part.When piston reciprocates piston ring generation elasticity expand, when contracting, two-part of completely closed piston ring can be along the sealing surface slide relative, but total energy is overlapping between these two-part, the sealing surface of its contacting point, stoped the phenomenon of collaborating effectively, and made piston ring have elasticity.If two completely closed piston rings are put into a piston groove, just form a kind of full closeding state.

The completely closed piston ring is compared with the pot type piston ring, its leakage efficiency can improve 5-10 doubly, for example: the motor of some sedan cars at present, under normal circumstances, the gas pressure of one piston ring of going here and there is about 20% of a upper chamber of air cylinder pressure, and the completely closed piston ring can make and went here and there the gas pressure of ring together and drop to 2-4% from above-mentioned 20%, the phenomenon that has stoped cylinder to be collaborated effectively, improve the pressure and the degree of vacuum of cylinder epicoele, effectively save fuel oil, improve the power of motor, make full combustion of fuel, reduce the harmful components in the tail gas, reduce pollution atmosphere.

Embodiment to completely closed piston ring disclosed in the utility model is further described below in conjunction with accompanying drawing:

Fig. 1 is a completely closed piston ring structure schematic representation.

Fig. 2 is a completely closed piston ring seal view.

In the structural representation of Fig. 1, the opening of completely closed piston ring 1 is made up of the outer gap 2 and the interior gap 4 of the certain distance that staggers mutually, a sealing surface 3 is arranged between two gap, gap 4 was divided into two-part with outer gap 2 and with completely closed piston ring 1 opening in sealing face 3 connected, when piston is reciprocating in cylinder, elasticity will take place and expand, contracts in completely closed piston ring 1, these two-part will be along sealing surface 3 slide relative, this structure can make piston ring have elasticity, can make the straight-through opening of collaborating become closed opening again.

Fig. 2 is a completely closed piston ring seal view.Upper and lower completely closed piston ring 5,6 is contained in the piston groove of piston 7, when piston 7 moves upward (compression stroke), upper piston ring 5 and lower piston ring 6 be superimposed to be pressed on the downside of piston groove, and this passage that piston ring is collaborated is closed entirely: the gas that enters upper piston ring 5 outer gap can't pass through the faying surface of upper and lower piston ring 5,6 and the surface of contact of lower piston ring 6 and cylinder 8; Can't go here and there the sealing surface of the faying surface of lower piston 6 and piston groove and lower piston ring 6 self and enter sideshake 9 and the gas of back clearance 10, this just forms a kind of full closeding state that can overcome the phenomenon of collaborating, even because of completely closed piston ring and cylinder wear and tear, gap-clearance of piston rings increases, and still can keep full closeding state.

Claims

1, a kind of completely closed piston ring, its profile is circular, the annulus bi-side are the plane or the conical surface that is parallel to each other, its periphery can be cylndrical surface, conical surface or arc surface etc., the opening that it is characterized in that it does not lead directly to, but by the outer gap of the certain distance that staggers mutually and in gap form, a sealing surface is arranged between two gap, the sealing face is communicated with inside and outside gap, and completely closed piston ring opening is divided into two-part.