CN2332818Y

CN2332818Y - Piston ring

Info

Publication number: CN2332818Y
Application number: CN 96244245
Authority: CN
Inventors: 张振峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-20
Filing date: 1996-11-20
Publication date: 1999-08-11
Anticipated expiration: 2006-11-20

Abstract

The utility model relates to a piston ring which is used for internal combustion engines, air compressors, etc. The opening of the utility model is composed of three parts, wherein two parts are lines and one part is in a circular arc shape. Two piston rings are arranged in a piston ring groove to form a compression ring group, and the piston rings and an oil ring are arranged in an oil ring groove to form an oil ring group; the compression ring group and the oil ring group are arranged on a piston, so that the utility model overcomes the defects that gas leaks from a cylinder more severely and a large amount of engine oil is burned because an opening gap becomes bigger with the natural abrasion between the piston rings, the oil ring and the cylinder wall, therefore, a combustion engine saves fuel and engine oil and is easy to start, and the performance of the combustion engine is improved.

Description

Piston ring

The utility model relates to a kind of piston ring, is used for machines such as petrol engine, diesel engine, air compressor, compression pump, hydraulic press.

At present, technique known is that gap-clearance of piston rings is a lineal shape, a piston ring is by putting in a piston ring groove, several match rings alive and oil ring are respectively by putting on a piston, prolongation along with machine hours, piston ring and oil ring and cylinder wall fair wear and tear are at piston ring, under the influence of oil ring self tension, opened gap is along with increase, increase along with piston ring gap clearance oil control, the oil level of scurrying into the firing chamber increases, and causes a large amount of burn oils of internal-combustion engine, along with the increase of piston ring gap, cylinder gas leakage increases the weight of, cause the power of IC engine deficiency, amount of fuel increases, performance is low, starting difficulty, so that fail to start is forced to overhaul or subscription rate, and the increase of amount of fuel causes discharge amount of exhaust gas to increase again, make pollution grows worse, the increase of amount of fuel also causes machine temperature to raise, and each component wear speeds up, and machine life shortens.

The purpose of this utility model: will provide a kind of piston ring exactly, by the various combination of this piston ring on piston by putting, overcome above-mentioned various disadvantage, make the cylinder of internal-combustion engine air tight, machine oil can not be scurried into the firing chamber, improves the complete machine performance, prolongs machine life, makes its fuel saving, saves machine oil, reduces toxic emission, raises the efficiency, starts easily with this.

The new shape of this practicality is finished like this:

The opening of piston ring [compression ring or title compression ring] (1) is made up of three parts, opening (2) and opening (3) are lineal shapes, opening (4) is a circular arc, this arc and piston ring (1) are concentric circles, the section of piston ring (1) can be square, can not square also, piston ring (5) and piston ring (6) are by putting in a piston ring groove (7), opening staggers and forms the compression ring group, piston ring (10) staggers by putting at an oil ring groove (12) inner opening with oil ring (11), the direction piston ring (10) of pressing piston head is preceding, oil ring (11) is formed the oil ring group in the back, compression ring group and oil ring group by putting on piston.

Piston ring (1) and cylinder wall fair wear and tear, under the influence of piston ring self tension, opening (2) and opening (3) are along with increase, and owing to opening (4) is a circular arc, this arc and piston ring (1) they are concentric circles, so that opening (4) can not become all the time is big.In the compression ring group, the opening of piston ring (5) is sealed by piston ring (6), the opening of piston ring (6) is blocked by piston ring (5), piston ring (5) and piston ring (6) stick together, with cylinder wall with piston driving fit be in the same place, it is big that opening separately (4) can not become again all the time, so gas can not pass through the opening of piston ring (5) and piston ring (6) all the time, though also there is the gap between compression ring group and the piston ring groove, this gap increases to some extent along with the prolongation of piston and compression ring service time, but, because the face driving fit that the compression ring group always has the face of a piston ring and a piston ring groove together, so gas can only be walked around the opening of a piston ring in the compression ring group in this gap, and can not walk around the opening of another piston ring, again because driving fit all the time is tight between piston ring and the cylinder wall, so the compression ring group makes cylinder forever air tight, therefore internal-combustion engine is overcome: piston ring and cylinder wall fair wear and tear, because piston ring is subjected to self tension to influence opened gap along with increase, cylinder gas leakage increases along with the increase of piston ring gap again, and then amount of fuel increases with cylinder gas leakage again, the increase of amount of fuel causes machine temperature to raise again, each component wear is accelerated, machine life shortens, the increase of cylinder gas leakage also causes the machine power deficiency, inefficiency, starting difficulty ... so that fail to start is forced to overhaul or subscription rate.

In the oil ring group, piston ring (10) has been sealed the opening of oil ring (11), oil ring (11) has blocked the opening of piston ring (10), piston ring (10) and oil ring (11) stick together, with cylinder wall with piston driving fit be in the same place, it is big that the opening (4) of piston ring (10) can not become again all the time, so, machine oil can not pass through the opening of piston ring (10) all the time, though oil ring (11) and cylinder wall fair wear and tear, oil ring (11) influences the under shed gap along with increase in self tension, but because the shutoff of piston ring (10), machine oil can not enter the firing chamber by the opening of oil ring (11), so the oil ring group makes internal-combustion engine overcome oil ring, piston ring and cylinder wall fair wear and tear, be subjected to self tension to influence opened gap along with increase, the amount that machine oil is scurried into the firing chamber increases with the increase of opened gap again, and then causes the defect of a large amount of burn oils.

Because such scheme, make the internal-combustion engine fuel saving, save machine oil again and then reduced discharge amount of exhaust gas, make also that power of IC engine abundance, starting easily, complete machine performance improve, machine life prolongs.

Below in conjunction with accompanying drawing the utility model is further specified:

Figure one is the structural representation of gap-clearance of piston rings.

Figure two is the generalized section that square piston ring is formed the compression ring group for section.

Figure three is not the generalized section that square piston ring is formed the compression ring group for section.

Figure four is the generalized section that piston ring and oil ring are formed the oil ring group.

Among the figure] be piston ring, the 2,3, the 4th, three parts of gap-clearance of piston rings, the 5th, piston ring, the 6th, piston ring, the 7th, piston ring groove, the 8th, piston ring, the 9th, piston ring, the 10th, piston ring, the 11st, oil ring, the 12nd, oil ring groove.

In figure one: the opening of piston ring [compression ring or title compression ring] (1) is made up of three parts, and opening (2) and opening (3) are lineal shapes, and opening (4) is a circular arc, and this arc and piston ring (1) are concentric circles.

In figure two: section is that square piston ring (5) and (6) are one group, and opening staggers, and by putting in a piston ring groove (7), forms the compression ring group, can make cylinder air tight.

In figure three: section is not that square piston ring (8) and (9) are one group, and opening staggers, and by putting in a piston ring groove (7), forms the compression ring group.Can not only make cylinder air tight, and can reduce the friction area of piston ring and cylinder wall.

In figure four: piston ring (10) and oil ring (11) are one group, and opening staggers, by the direction piston ring (10) of piston head preceding oil ring (11) after, an oil ring groove (7) in, form the oil ring group by putting, two openings that encircle are all avoided the oilhole of separating on the piston.

In the oil ring group: piston ring (10) can be that section is square piston ring, also can be that section is not square piston ring.

Embodiment one: be compression ring group and the oil ring group that square piston ring is formed by putting section on piston.

Embodiment two: be not compression ring group and the oil ring group that square piston ring is formed by putting section on piston.

Claims

1, a kind of piston ring, the opening that it is characterized in that it is made up of three parts, opening (2) and opening (3) are lineal shapes, opening (4) is a circular arc, this circular arc and piston ring are concentric circles, two piston rings by put in a piston ring groove, opening staggers and forms the compression ring group, piston ring and an oil ring by put in an oil ring groove, opening staggers, by the direction of piston head, piston ring at preceding, oil ring in back composition oil ring group, compression ring group and oil ring group are by putting on a piston.

2, piston ring according to claim 1 is characterized in that its opening is made up of three parts, and opening (2) and opening (3) are lineal shapes, and opening (4) is a circular arc, and this circular arc and piston ring are concentric circles.