CN109458267A

CN109458267A - Laminated sealing piston ring and piston component

Info

Publication number: CN109458267A
Application number: CN201811557255.2A
Authority: CN
Inventors: 周志坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-03-12

Abstract

The present invention provides a kind of plane special-shaped interface piston ring and spring like spiral one piston rings and piston component, block or weaken leakage by changing the access of gas, reinforce gas seal property, to improve the efficiency of compression.Mainly the Interface Shape of design plane annulus forms step-lap, it is fabricated to concavo-convex occlusal surface again on ladder, the effect of positive pressure and back pressure is recycled to seal occlusal surface, reduce gap, extend gas passage preferably to block leakage path, as shown in Fig. 5.For spring like spiral one piston ring, gas leakage path is blocked, to improve the working efficiency of engine and compression effect of compressor, energy-saving and emission-reduction using the effect of inclined-plane overlapping and positive pressure to reduce gap.

Description

Laminated sealing piston ring and piston component

Technical field

This technology is used for gas compression and work done, belongs to industrial production technology, be mainly used for engine and air compressor, The fields such as hydraulic compressor life.

Background technique

Piston ring joint section originally is plane or radial, and it is larger that there are gaps, and gas leakage is serious, power loss Greatly, the problems such as burning is insufficient, and tail gas is unable to qualified discharge；Horizontal seal is mutually restricted with vertical seal, when design is radial close Will cause when envelope piston ring outer diameter it is non-round and seal it is incomplete, will cause piston ring lower planes out-of-flatness when designing axial seal And radial seal is bad.

Summary of the invention

Summary of the invention has following several:

One, using the integrated piston ring and mating piston of oil ring and compression ring unification, the shape of ring is similar to the spiral-shaped of spring, It is respectively formed planar compression ring and oil ring in top, middle part, lower part, two to three compression rings are set according to machine seal request, if One to two oil rings；Inclined-plane lap seal is taken in eye and turning site, and middle part is also the sealing of the side ring Bian Yuhuan inclined-plane, ring tail with Turn fractions equally use inclined-plane to seal, and avoid the trouble of interface of being staggered when the installation of multiple rings in this way, while sealing journey Degree greatly improves, referring to attached drawing 1, attached drawing 2, in order to mating with the shape piston ring, the circular groove of funny fellow also it is corresponding be processed into it is identical Shape is to guarantee gap minimum；

Two, for simplicity, machining piston, the Interface Shape of change piston ring not can also be improved sealing effect, will connect first It is step-like that mouth is designed to that upper layer and lower layer are presented, and such as attached drawing 3, reduces gas and directly leaks from notch；Then it will be processed in step Notch and corresponding protrusion are overlapped sealing with the vertical plane of notch by protrusion, reduce the leakage in gas level direction, such as attached drawing Shown in 4；For better seal, up/down steps can be processed into the protrusion being staggered and notch, it is such as attached to repeat sealing Shown in Fig. 5；

The inclined-plane lap seal of scheme one is more much higher than vertical notch, therefore powerful, high-efficient, the pollution low, longevity Life length, and the process that assembly contraposition can be omitted；Connector will not occur point-blank in operation, so that gas leakage is generated, function Rate decline, casing wall abrasion is uneven and the phenomenon that seamed edge occurs；Scheme two does not need to redesign piston, step shape and bumps Shape cooperation, forms multiple lap seal, reduces the generation of gas leakage, and the compression ratio of engine improves, and burning is more sufficiently complete Entirely, the phenomenon that exhaust gas of generation is less, also makes burn oil tails off, also less to the pollution of machine oil, service life of engine from however Can so it extend.

Detailed description of the invention

Fig. 1 is the shape and arrangement position schematic diagram of spring like spiral piston ring and piston；

Fig. 2 is the interface inclined plane shape of spring like piston ring, and intermediate ring body inclined-plane abuts the schematic diagram of lap seal；

The ladder-like faying surface of the piston ring that Fig. 3 is horizontally oriented, vertical direction gas circuit are blocked schematic diagram；

The concavo-convex faying surface of the piston ring that Fig. 4 is vertically oriented, horizontal direction gas circuit are blocked schematic diagram；

Fig. 5 is the schematic diagram that formation vertical and horizontal direction after Fig. 3 and Fig. 4 repeated combination is blocked to face.

Claims

1. the piston ring and piston of a kind of lap seal are characterized in using inclined-plane overlapping and special-shaped ring mouth lap seal.

2. forming feature: inclined-plane laminated sealing piston ring based on the requirement of right 1.

3. forming feature: ladder-like laminated sealing piston ring mouth based on the requirement of right 1.

4. forming feature: concavo-convex lapped piston ring mouth based on the requirement of right 1.

5. forming feature: multiple-layer overlapped bumps lapped piston ring mouth based on the requirement of right 1.

6. forming feature: compression ring and oil ring Integral piston ring based on the requirement of right 1.

7. forming feature: helical form piston and piston ring based on the requirement of right 1.