CN202300693U

CN202300693U - Piston and piston ring component

Info

Publication number: CN202300693U
Application number: CN2011204451986U
Authority: CN
Inventors: 丁正德
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-07-04
Anticipated expiration: 2021-11-11

Abstract

The utility model discloses a piston and piston ring component, belonging to a sealing device of an internal combustion engine, in particular to a piston and piston ring component. According to the piston and piston ring component, the piston is provided with a gas circular groove and an oil circular groove; two piston rings such as an upper gas ring and a lower gas ring are arranged in the gas circular groove; a group of oil rings are arranged in the oil circular groove; and the openings of the gas rings are openings with stair-steeping planes. The piston and piston ring component is characterized in that: the openings of the oil rings are in a combined opening structure that straight openings are combined with slope type lap joint openings or stair-steeping lap joint openings in the thickness direction of the oil rings. The piston and piston ring component has the advantages of: effectively improving the tightness in air cylinders; prolonging the service life of the piston and piston ring component; reducing consumption of fuel oil and engine oil; facilitating energy conservation and consumption reduction; reducing exhaust pollution, and facilitating environment protection; and adapting to various gasoline engines using sheet oil rings.

Description

Piston and piston-ring packing

Technical field

The utility model belongs to the piston and the piston-ring packing of the seal arrangement of internal-combustion engine, particularly petrol engine.

Background technique

Piston and piston-ring packing are the important seal arrangements of internal-combustion engine; Usually on the piston of compact internal combustion engine three road piston ring grooves are arranged; Wherein twice compression, one oil ring groove, the opening of used piston ring are straight mouthful, though each piston ring staggers the direction of opening mutually when mounted; But gas leakage is still arranged, and the pressure in the cylinder is generally at 9-10Kg/cm ², for keep cylinder pressure need be after piston ring scuffing rering more.Chinese patent CN201144738Y discloses a kind of piston and piston-ring packing and has proposed that a kind of " opening of compression ring is opening stepped on its plane, and the opening of oil ring is sloping formula overlap joint opening." technological scheme, though this scheme can effectively raise the sealing in the cylinder, prolonged the working life of piston and piston-ring packing.But adopt the oil ring of sloping formula overlap joint opening still to have a small amount of oil leakage phenomenon.

The model utility content

In order further to improve the sealing of piston and piston-ring packing, the purpose of the utility model provides a kind of piston and piston-ring packing, and this piston and piston-ring packing can improve sealability, prolong the working life of piston and piston-ring packing.

The utility model solves the technological scheme that its technical problem adopted: a kind of piston and piston-ring packing; One compression arranged with oil ring groove on its piston; Compression ring, two piston rings of lower air ring are housed in the compression; One group of oil ring is housed in the oil ring groove, and the opening of compression ring is an opening stepped on its plane, it is characterized in that: the opening of described oil ring adopt head straight for mouthful with the oil ring thickness direction on sloping formula overlap the combined openings structure that opening or stepped overlap joint mouth combine.

Promptly near Monday in the oil ring, side accounted for the mouth that heads straight for that 1/5～1/4 of ring overall width is a disconnection ring total thickness, remaining part is the sloping formula overlap joint opening on the oil ring thickness direction to described combined openings structure.

Promptly near Monday in the oil ring, side accounted for the mouth that heads straight for that 1/5～1/4 of ring overall width is a disconnection ring total thickness, remaining part is the stepped overlap joint mouth on the oil ring thickness direction to described combined openings structure.

Since the utility model with the opening of oil ring by original simple sloping formula overlap joint opening be improved to adopt head straight for mouthful with the oil ring thickness direction on sloping formula overlap the combined openings structure that opening or stepped overlap joint mouth combine.In this structure mesoslope formula overlap joint opening or the stepped overlap joint mouth week head straight for a small amount of oil leakage phenomenon that mouth can stop further that sloping formula overlap joint opening still exists, effectively raise sealing, border entrucking application test factually, cylinder pressure is by 10～11Kg/cm ²Bring up to 11-13Kg/cm ², and the cylinder that do not expand, the piston ring replacement cycle is brought up to ten thousand kilometers of 20-30 by going 100,000 kilometers, and fuel consumption per hundred kilometers reduces 5-10%, and consumption of lubricating oil reduces about 50%.

The beneficial effect of the utility model is the sealing that effectively raises in the cylinder; Prolonged the working life of piston and piston-ring packing; Can reduce the consumption of fuel oil and machine oil; Help saving energy and reduce the cost, reduce exhaust emission pollution and help environmental protection, be fit to various use sheet oil ring petrol engines and use.

Description of drawings

Fig. 1 is the assembled state schematic representation of the utility model,

Fig. 2 is the stereogram of compression ring among Fig. 1,

Fig. 3 is an oil ring front view among Fig. 1,

Fig. 4 is an oil ring reverse view among Fig. 1,

Fig. 5 be among Fig. 3 A to partial enlarged drawing,

Fig. 6 be an embodiment's among Fig. 3 B to partial enlarged drawing,

Fig. 7 is that another embodiment's among Fig. 3 B is to partial enlarged drawing.

Among the figure, 1. cylinder sleeve, 2. oil ring groove, 3. oil ring, 4. lower air ring; 5. go up compression ring, 6. compression, 7. piston, 8. stair-stepping opening; 9. the sloping formula on the oil ring thickness direction overlaps opening, 10 combined openings, and 11. head straight for mouth, the stepped overlap joint mouth on the 12. oil ring thickness directions.

Embodiment

The embodiment of the utility model is:

Embodiment 1; Like Fig. 1, Fig. 3, Fig. 4, Fig. 5, a kind of piston shown in Figure 6 and piston-ring packing; One compression 6 arranged with oil ring groove 2 on its piston 7; Compression ring 5,4 two piston rings of lower air ring are housed in the compression; One group of oil ring 3 is housed in the oil ring groove, and the opening of compression ring is an opening 8 stepped on its plane, and its structure is: the opening of oil ring adopt near in the oil ring Monday side to account for 1/5～1/4 of ring overall width mouthfuls 11 be that sloping formula on the oil ring thickness direction overlaps combined openings 10 structures that opening 9 combines with remaining part for breaking off heading straight for of ring total thickness.

Embodiment 2; Like Fig. 1, Fig. 3, Fig. 4, Fig. 5, a kind of piston shown in Figure 7 and piston-ring packing; One compression 6 arranged with oil ring groove 2 on its piston 7, compression ring 5,4 two piston rings of lower air ring are housed in the compression, one group of oil ring 3 is housed in the oil ring groove; The opening of compression ring is an opening 8 stepped on its plane, and its structure is: the opening of described oil ring adopt head straight for mouthfuls 11 with the oil ring thickness direction on combined openings 10 structures that combine of stepped overlap joint mouth 12.Promptly near Monday in the oil ring, side accounted for the mouth that heads straight for that 1/5～1/4 of ring overall width is a disconnection ring total thickness, remaining part is the stepped overlap joint mouth on the oil ring thickness direction to described combined openings structure.

Claims

1. piston and piston-ring packing; One compression arranged with oil ring groove on its piston; Compression ring, two piston rings of lower air ring are housed in the compression; One group of oil ring is housed in the oil ring groove, and the opening of compression ring is an opening stepped on its plane, it is characterized in that: the opening of described oil ring adopt head straight for mouthful with the oil ring thickness direction on sloping formula overlap the combined openings structure that opening or stepped overlap joint mouth combine.

2. piston according to claim 1 and piston-ring packing; It is characterized in that: promptly near Monday in the oil ring, side accounted for the mouth that heads straight for that 1/5～1/4 of ring overall width is a disconnection ring total thickness, remaining part is the sloping formula overlap joint opening on the oil ring thickness direction to described combined openings structure.

3. piston according to claim 1 and piston-ring packing; It is characterized in that: promptly near Monday in the oil ring, side accounted for the mouth that heads straight for that 1/5～1/4 of ring overall width is a disconnection ring total thickness, remaining part is the stepped overlap joint mouth on the oil ring thickness direction to described combined openings structure.