CN2146573Y

CN2146573Y - Single-groove double-ring piston

Info

Publication number: CN2146573Y
Application number: CN 93233172
Authority: CN
Inventors: 莫兆球
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-09
Filing date: 1993-02-09
Publication date: 1993-11-17
Anticipated expiration: 2003-02-09

Abstract

The utility model relates to a single-groove double-ring piston. The single-groove double-ring piston is characterized in that an air ring groove which at least can contain two piston rings is arranged on a piston body. Compared with the original piston, the single-groove double-ring piston reduces friction, enhances the sealing performance of a cylinder, and improves lubrication. The service life of the cylinder and the single-groove double-ring piston is extended. The efficacy of an internal-combustion engine is enhanced; meanwhile, the single-groove double-ring piston has the advantages of simple structure, convenient manufacture, and material saving.

Description

Single-groove double-ring piston

The utility model relates to a kind of piston of new structure.

As everyone knows, the working efficiency of internal-combustion engine is lower, wherein a part of power is to be consumed by the friction of piston ring and cylinder, and general machine has 3-6 road ring, be the 1/3-1/6 that the per pass ring will consume this part power, therefore, guaranteeing under the prerequisite of cylinder seal, the number that reduces compression ring can reach reduces friction, and improves the purpose of work efficiency.The splaying of piston ring is a main cause of cylinder leakage tester, although one pair of new piston ring reason wheel splaying is the 0.25-0.7 millimeter, and in fact, because the abrasion of cylinder sleeve and compression ring is often more much bigger than this numerical value, causes insufficient compression, power descends, starting difficulty, therefore, the number that reduces piston ring also is a measure that improves power.

The purpose of this utility model just provides a kind of piston of new structure, and under the prerequisite that guarantees cylinder seal, the number that reduces compression ring promptly correspondingly reduces the number of piston ring, thereby improves power, improves the lubricated of compression ring, increases the service life.

Solution of the present utility model is: have a compression that can hold two piston rings at least on piston body, its detailed content is described below referring to accompanying drawing:

Referring to accompanying drawing, single groove bicycle piston that the utility model provides is changed the structure that has 3-6 road air drain on the conventional piston, on piston body (1), only have a compression (2), but can hold two piston rings (3) in this compression (2) at least, on the one hand the compression (2) on the piston body (1) is reduced to minimum, correspondingly can reduce the number of piston ring (3), thereby reduced the friction of piston and cylinder, on the other hand, at least can hold two piston rings (3) in the compression (2), guaranteed the sealing of cylinder again, thereby improved the working efficiency of machine greatly, also improved simultaneously the lubricated of piston ring, the working life of having improved piston ring and cylinder is because the compression (2) on the piston body (1) minimizes, not only simplified processing, and saved material, alleviate the weight of piston, and can improve the mechanical property of entire machine.Feature of the present utility model also is when holding two piston rings (3) in the compression (2), the width of its groove (2) is the two times of thick 0.05-0.092 of adding millimeters of ring, two piston rings (3) splaying opening staggers with 180 degree angles mutually, pressurized gas are through the resistance envelope of twice piston rings (3), gas is difficult to release between piston ring and cylinder, but might under the splaying, let out, but be subjected to the resistance envelope of following piston ring, see on the whole, twice piston ring (3) in the compression (2) has formed the compression ring of a no splaying, improved the sealing of cylinder, also reduced the loss of lubricant oil, simultaneously, in the elastic range of piston ring, several times of the comparable original increases in its splaying, promptly the life-span of piston ring can be improved several times.

Single groove bicycle piston that the utility model provides is compared with original piston and has been reduced friction, improved the sealing of cylinder, improved the lubricated of compression ring, prolonged the working life of cylinder and piston, improved the effect of internal-combustion engine greatly, also had simple in structure, easy to process simultaneously, save the characteristics of material, can also improve the mechanical property of complete machine.

Accompanying drawing has been represented specific embodiments of the present utility model.

Accompanying drawing is represented structural drawing of the present utility model.

According to embodiment shown in the drawings, with 90 serial diesel engines is example, is processed with a compression (2) on piston body (1), and groove width is the thick 0.05-0.092 of the adding millimeter of twice piston ring, two piston rings (3) are housed in the groove, and its splaying opening staggers with 180 degree mutually.

Claims

1, a kind of single groove bicycle piston, feature of the present utility model are to have a compression (2) that can hold two piston rings (3) at least on piston body (1).

2, single groove bicycle piston according to claim 1, it is characterized in that when holding two piston rings (3) in the compression (2), the width of its groove (2) is the two times of thick 0.05-0.092 of adding millimeters of ring, and two piston rings (3) splaying opening staggers with 180 degree angles mutually.