CN87205804U - Autocompensation type multifunction piston and assemblies of piston ring - Google Patents

Abstract

The utility model discloses auto-compensation type multifunction piston and assemblies of piston ring. The piston and assemblies of piston ring are important components of power machinery and air compressors. Among the factors which influence the gaseous pressure of the inner of an air cylinder, the air leakage of the ring mouth of a piston ring is one the important factors. The design of the utility model is to arrange a tiny spring bolt device in the ring groove of the piston and ring mouth of the piston ring to make ring mouth gaps when the piston ring works in air cylinder automatically filled in order to achieve the purposes of raising the air pressure of the air cylinder and making full use of the heating power to save fuels, materials and increase power. Besides, the design can make the piston ring position on the piston.

Description

Autocompensation type multifunction piston and assemblies of piston ring

The gasoline that the design relates in all machinery with piston and piston ring parts, particularly dynamic power machine is sent out merit machine and diesel engine.

Piston and piston ring parts are important component parts of motor, and the quality of piston ring technology directly affects engine power performance.Piston ring is that certain flexible opening annulus is arranged, and it can be divided into compression ring and oil ring (following indication is a compression ring); The regular price gasoline machine has 2～3 road compression rings, and diesel engine has 3～4 road compression rings; The main effect of compression ring is to guarantee that gas in the cylinder does not bleed in the crankcase.For new ring, because the elastic force of self, it gets very tight with the cylinder wall pressure in cylinder; And when piston ring is worked expanded by heating, therefore collar extension is very close to each other substantially, can guarantee the tightness in the cylinder well.But, because piston ring very heavy, the very high gas pressure of working in cylinder acts on the inner circumference of ring, make it the cylinder wall pressure is got tight especially, the lubricating condition high temperature under is extreme difference again, thereby the wearing and tearing that encircle are very serious.And along with the piston ring prolongation of service time, the elastic force of piston ring self will make collar extension corresponding increase with the wearing and tearing of its outer rim, and piston ring will reduce original air-tightness gradually, descend with the power that causes motor, and oil consumption increases.

For addressing this problem, common way mainly contains two kinds, and the one, the collar extension shape of change piston ring; The 2nd, the number of increase piston ring in the per pass annular groove.With regard to first kind of way, common piston ring collar extension shape has the branch of straight mouth, angle, trapezoidal mouth; But the collar extension of these piston rings all will the corresponding increase with the wearing and tearing of the prolongation of piston ring service time and its outer rim, thereby reduces original air-tightness.For second kind of way, its result is that air-flow is walked around several collar extensions more, and collar extension is leaked gas equally.

The design's purpose provides a kind of improved piston and piston-ring packing, and it can guarantee the piston ring air-tightness of collar extension in use effectively; Thereby can improve the power of motor, and save fuel oil, save raw material metal.

The design's purpose is achieved in that 1. will mill out an arc groove in the per pass annular groove of piston; Should stagger by circumference in equal parts successively in the position that mills out arc groove in several roads annular groove; The width of arc groove should equal the width of annular groove.2. the night bolt device is placed in each arc groove of piston.The night bolt device is made up of on the arc spring bar for the metallic pin sheet solid welding that cooperates with piston ring collar extension by interior angle the end, and the thickness of selling sheet should equal the thickness of piston ring, can put in the arc groove on the piston to guarantee this device.3. the position of the corresponding night bolt of the piston ring collar extension that interior angle is arranged is put in the annular groove.In cylinder, night bolt will closely cooperate with the piston ring collar extension, and follow piston and piston ring to do the to-and-fro motion that goes round and begins again together.Because the effect of spring elastic force, will wear and tear along with the wearing and tearing of piston ring outer rim in the end of latch, so that remedy the collar extension gap all the time, and gas is spilt from collar extension.

The design only need change the piston ring collar extension into and have interior angle and mill out an arc groove in the annular groove of piston, adorns a very little night bolt device again in arc groove, so structure is very simple.Because it can guarantee the tightness in the cylinder effectively, thereby can improve the pressure and temperature of gas in the cylinder, make the oil plant burning fully rapidly in the spirt firing chamber, effectively promoting engine running, reach raising power, fuel-efficient purpose.Simultaneously, just can not change component such as piston, piston ring and cylinder generally speaking,, save the purpose of metallic material to reach the minimizing maintenance frequency for the excessive problem that causes of leaking gas.In addition,, limited the rotation displacement of piston ring in annular groove effectively because the design adopts the night bolt device, from and can reach the effect that piston ring is located in the joint groove.

The design's concrete structure is provided by Figure of description.

Fig. 1 is autocompensation type energy-saving piston and the cylinder of piston-ring packing and the partial sectional view of piston that proposes according to the design.Describe the details and the working condition of the energy saving modules that proposes according to the design in detail below in conjunction with Fig. 1.

1. a piston is arranged 2. in cylinder block in, several roads annular groove is arranged 3. on the piston cylndrical surface, have arc groove 6. at the per pass annular groove in 3., the position circumference in equal parts of per pass arc groove staggers successively.3. piston ring is housed 4. at annular groove in, 5. piston ring opening 4. has an interior angle.6. place a night bolt device 7. at arc groove in, 9. the metallic pin sheet that 5. 7. the night bolt device cooperated by end and gap-clearance of piston rings is fixed on that the arc spring bar forms on 8..The opening of night bolt device end alignment piston ring 7. 5..Night bolt device among the figure is in running order.

When 2. 4. piston ring work in cylinder with piston, piston ring outer rim 4. will be worn and torn mutually with cylinder block inwall 1., and collar extension gap 5. will increase gradually; Simultaneously, also will wear and tear with cylinder block inwall 1. mutually owing to the 8. effect of elastic force of spring in night bolt device end 7., thus the gap of automatic polishing collar extension.

Claims (3)

1, a kind of energy-saving piston and piston-ring packing, comprise a piston element 2., several roads annular groove is arranged 3. on the piston cylndrical surface, 4. annular groove is equipped with piston ring in 3., 5. 4. piston ring be provided with opening, it is characterized in that: 5. opening has an interior angle, have arc groove 6. in the per pass annular groove, the position circumference in equal parts of per pass arc groove staggers successively, arc groove is placed one in 6. and 9. is fixed on night bolt device that spring forms on 8. 7. by end and the metallic pin sheet that is 5. cooperated by interior angle gap-clearance of piston rings, and the opening of its end alignment piston ring 5..

2, assembly according to claim 1 is characterized in that arc groove width 6. equals annular groove width 3..

3, assembly according to claim 1 is characterized in that metallic pin sheet thickness 9. equals piston ring thickness 4..