CN2458427Y

CN2458427Y - Piston ring

Info

Publication number: CN2458427Y
Application number: CN 00258591
Authority: CN
Inventors: 韦思情
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-18
Filing date: 2000-10-18
Publication date: 2001-11-07
Anticipated expiration: 2010-10-18

Abstract

The utility model belongs to a part of piston type machinery. A piston ring is composed of an upper and a lower two split rings in the same piston ring groove, the opening positions of the upper and the lower two split rings are staggered for 45 DEG at least, and the upper half part of the opening of the upper split ring and the lower half part of the opening of the lower split ring are both provided with notches of sloped edges or arc-shaped edges. The middle part of each ring groove of a piston is totally provided with two lateral pins, wherein, the positions of which are staggered for 45 DEG at least. Piston machinery adopting the utility model can have the advantages of power increase, fuel oil saving, little consumption of machine oil, cost reduction and service life prolonging.

Description

Novel piston ring

The utility model relates to the part of a kind of part of reciprocating machine, particularly internal-combustion engine or air compressor.

In reciprocating machines such as present existing petrol engine, diesel engine and air compressor, a piston ring is set all in each piston ring groove of its piston.So on the piston of internal-combustion engine, generally all be provided with two to three road compressions with oil ring groove, corresponding placement a slice compression ring or a slice oil ring in the groove are with anti-gas-leak and leakage of oil.But the piston ring of this structure and piston, after using a period of time, will the opened gap of piston ring be strengthened because of the wearing and tearing of piston ring excircle, cause the gas leakage between piston and the cylinder to increase, make that the fuel oil of internal-combustion engine and consumption of lubricating oil exceed standard, power significantly descends.

Task of the present utility model is that a kind of novel piston ring will be provided, and it still can finish the sealing task between piston and cylinder effectively when the cylindrical noticeable wear of piston ring, prevents to leak, and prolongs the life-span of piston ring.

Task of the present utility model is finished like this: this novel piston ring also is ring, an opening is also arranged on the annulus, but it by in the piston ring groove that coexists up and down two stacked trip rings constitute, the aperture position of two rings on the anchor ring circumference, stagger mutually at least 45 the degree, the Lower Half of the first half of upper film loop opening and lower film loop opening all has the hypotenuse that holds the stop lateral pin or the breach on arc limit.

For making sealing effect better, up and down the aperture position of two rings preferably stagger mutually 180 the degree.

When using, also accompanying a profile of tooth ring or a corrugated gasket that has opening between the two rings up and down as oil ring.

Use in every annular groove of piston of this piston ring, stagger mutually in the annular groove circumference lateral pins of at least 45 degree of two positions are all arranged up and down.For making sealing effect better, the position of two lateral pins 180 degree that preferably stagger mutually.

By above structure explanation as seen, because the utility model is made of two stacked trip rings up and down, the aperture position of two rings on the anchor ring circumference, stagger mutually at least 45 the degree, thereby it is not as the existing piston ring, in case the cylindrical wearing and tearing strengthen opened gap, will form the breach of sealing, full gas leakage of oil is increased.Piston ring of the present utility model, have only original 2/3rds even may wear to thickness at cylindrical, when opened gap obviously strengthens, still can not form the breach of sealing, certain position because the opening of mutual stacked two rings has staggered, in the same annular groove of piston, the opening of upper film loop is sealed by the anchor ring of lower film loop just, and the opening of lower film loop is sealed by the anchor ring of upper film loop just, with piston up-down the time, two rings sticks together tightly, thereby on the contacted same anchor ring of two rings, does not have breach between piston ring and the cylinder, thereby can not leak gas, the life-span of piston ring can prolong three times.To the piston of diameter various big specifications more than 65 millimeters, all can only establish the twice compression with oil ring groove; To the piston (as the piston of motorcycle engine) of diameter various small dimensions below 65 millimeters, can only establish one compression with oil ring groove, thereby can simplify structure of piston; It can make and adopt various piston machine raising power of the present utility model, saving fuel oil, few consumable lubricating oil, reduce cost, life-saving.

Be elaborated with embodiment and accompanying drawing below.

Fig. 1 is the structural representation of the utility model piston ring during as compression ring.Fig. 2 is the structural representation of the utility model piston ring during as oil ring.Fig. 3 is that A among Fig. 1 is to view.Fig. 4 is that B among Fig. 2 is to view.Fig. 5 is the utility model structure of piston schematic representation.Fig. 6 is a scheme of installation

By Fig. 1 and Fig. 3 as seen, the utility model is as the piston ring of compression ring, it by in the piston ring groove that coexists up and down overlapping two trip rings 1,2 constitute, the position of the opening 3,4 of two rings, staggering mutually on the anchor ring circumference, (this is the angle that staggers for convenience of description to 50 degree, 180 degree in fact preferably stagger), the first half of the opening 3 of upper film loop 1 has hypotenuse breach 5, and the Lower Half of the opening 4 of lower film loop 2 has the breach 6 of hypotenuse.The breach 5,6 of hypotenuse also can make the breach on arc limit into.By Fig. 2 and Fig. 4 as seen, the utility model is as the piston ring of oil ring, it by in the piston ring groove that coexists up and down overlapping two trip rings 1,2 constitute, the position of the opening 3,4 of two rings, 50 degree (preferably 180 degree) mutually stagger on the anchor ring circumference, the first half of the opening 3 of upper film loop 1 has hypotenuse breach 5, and the Lower Half of the opening 4 of lower film loop 2 has the breach 6 of hypotenuse, is also having a profile of tooth ring or a corrugated gasket 8 that has opening 7 up and down between the two rings 1 and 2.As seen from Figure 5, piston of the present utility model, it has two (or one) compressions 9 and an oil ring groove 10, and stagger mutually two lateral pins 11,12 up and down of at least 45 degree of two positions are all arranged in every annular groove.It is cylindrical that lateral pin is preferably, and second cylinder of wherein going up lateral pin 11 is in piston ring groove, and first cylinder is then on the cell wall outside annular groove.First cylinder of following lateral pin 12 is in piston ring groove, and second cylinder is then on the cell wall outside annular groove.When packing piston ring the annular groove of piston into, should resemble as shown in Figure 6, in a compression 9, the up and down two rings 1 and 2 of packing into, wherein the breach 5 of upper film loop 1 and is stuck in last lateral pin 11 places in the annular groove up, the breach 6 of lower film loop 2 and is stuck in following lateral pin 12 places in the annular groove down.In oil ring groove 10, except two rings 1 and 2 about will packing into, the corrugated gasket 8 of also will between two rings, packing into, wherein the breach 5 of upper film loop 1 up, and be stuck in last lateral pin 11 places in the annular groove, the breach 6 of lower film loop 2 and is stuck in following lateral pin 12 places in the annular groove down, will stagger with the position of the breach 5,6 of two rings up and down in the position of the opening 7 of corrugated gasket 8.

Claims

1, a kind of novel piston ring, it is ring, one opening is arranged on the annulus, it is characterized in that: it is by stacked upper film loop (1) and (2) two formations of lower film loop up and down in the piston ring groove that coexists, the opening of two rings (3,4) stagger mutually at least 45 the degree, the breach (5,6) on hypotenuse or arc limit is all arranged at the bottom of the top of the opening (3) of upper film loop (1) and the opening (4) of lower film loop (2).

2, by the described novel piston ring of claim 1, it is characterized in that: the opening (3,4) of two rings (1,2) 180 degree that stagger mutually up and down.

3, by claim 1 or 2 described novel piston rings, it is characterized in that: also have a profile of tooth ring or a corrugated gasket (8) that has opening (7) up and down between the two rings (1,2).