CN210289947U

CN210289947U - Steel piston ring gas ring

Info

Publication number: CN210289947U
Application number: CN201921242056.2U
Authority: CN
Inventors: 陈玉元
Original assignee: Yizheng Tianhua Piston Ring Co ltd
Current assignee: Yizheng Tianhua Piston Ring Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-10
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a steel piston ring gas ring, which comprises a piston ring body, wherein at least one of the upper surface of the piston ring body and the lower surface of the piston ring body is provided with a groove in the radial direction; the inner side face of the piston ring body is communicated with the outer side face of the piston ring body through the groove. The utility model provides a steel piston ring gas ring radially sets up the recess on the upper surface of piston ring body, stores lubricating oil in the recess during use, and first piston ring is when bearing high temperature, high pressure, and under the lubricated condition of lacking, piston ring and piston ring groove can be guaranteed to the lubricating oil that stores in the recess, have good lubrication to prevent the quick wearing and tearing of piston ring upper surface and annular, effectively improved piston ring and piston life.

Description

Steel piston ring gas ring

Technical Field

The utility model belongs to the technical field of the piston ring technique and specifically relates to a steel piston ring gas ring.

Background

With the requirements of high power, low oil consumption and low emission, the explosion pressure of the engine is increased, and higher requirements are provided for the performance of the piston and the piston ring. At present, steel pistons are adopted by most heavy diesel engines meeting the Euro V and Euro VI standards in Europe and America, the explosion pressure of the engine is increased along with the upgrading of the emission requirement, the emission capacity is 11L and 13L heavy diesel engines, and the steel pistons are the mainstream in the future. The promotion of the explosion pressure of engine, higher high temperature is born to first piston ring, and high pressure has proposed higher requirement to the oil lubrication of piston ring and piston ring groove, and how to improve the oil lubrication performance of stopper ring and piston ring groove has become the technical problem that people need to solve urgently.

Disclosure of Invention

An object of the utility model is to provide a steel piston ring gas ring to at least, solve foretell a technical problem.

The technical scheme of the application is as follows: a steel piston ring gas ring comprises a piston ring body, wherein at least one of the upper surface of the piston ring body and the lower surface of the piston ring body is radially provided with a groove; the inner side face of the piston ring body is communicated with the outer side face of the piston ring body through the groove.

Preferably, the groove is provided on an upper surface of the piston ring body.

Preferably, the groove is a square groove.

Preferably, the square grooves are 6-12 and evenly distributed on the upper surface of the piston ring body.

Preferably, the width of the square groove is 2.5-5mm, and the depth of the groove is 0.10-0.25 mm.

Preferably, the piston ring body is made of alloy spring steel or martensitic stainless steel.

Preferably, the cross-sectional shape of the piston ring body is rectangular or trapezoidal.

The utility model provides a steel piston ring gas ring radially sets up the recess on the upper surface of piston ring body, stores lubricating oil in the recess during use, and first piston ring is when bearing high temperature, high pressure, and under the lubricated condition of lacking, piston ring and piston ring groove can be guaranteed to the lubricating oil that stores in the recess, have good lubrication to prevent the quick wearing and tearing of piston ring upper surface and annular, effectively improved piston ring and piston life.

Drawings

Fig. 1 is a schematic view of the overall structure of a steel piston ring gas ring provided by the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a second schematic sectional view in the direction A-A of FIG. 1;

in the figure: piston ring body 1, recess 2, this lower surface 3 of piston ring, the upper surface 4 of piston ring body.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The utility model provides a steel piston ring gas ring, which is shown in figures 1-3 and comprises a piston ring body 1, wherein a groove 2 is radially arranged on the upper surface 4 of the piston ring body; the inner side face of the piston ring body is communicated with the outer side face of the piston ring body through the groove.

The steel piston ring air ring provided by the utility model is provided with the groove in the radial direction on the upper surface of the piston ring body, lubricating oil is stored in the groove during use, and because the inner side surface of the piston ring body and the outer side surface of the piston ring body are both communicated with the groove, the lubricating oil stored in the groove can form an oil seal on the inner side surface of the piston ring body and the outer side surface of the piston ring body, and the air tightness is good; when the first piston ring bears high temperature and high pressure, the lubricating oil stored in the groove can ensure the piston ring and the piston ring groove to have good lubrication under the condition of lack of lubrication, thereby preventing the quick abrasion of the upper surface of the piston ring and the ring groove and effectively prolonging the service life of the piston ring and the piston.

The piston ring body is preferably made of alloy spring steel or martensitic stainless steel, and because the steel has high elastic modulus, high strength, good toughness and thin ring height and radial thickness, the axial compliance of the piston ring is improved, the sealing property of the piston ring of a high-speed engine is improved, the air leakage and fuel consumption of the engine are effectively reduced, the mechanical friction loss of a piston assembly is reduced, and the overall performance and the economical efficiency of the engine are improved.

It should be noted that, in this application, the recess can also set up on the lower surface of piston body, and of course, both surfaces also can all set up the recess, as long as can guarantee to be provided with the recess on the one side up during the use. Wherein, the utility model discloses radial the radius or the diametral direction that indicate the piston ring.

In the present application, the groove is preferably a square groove to facilitate storage of as much lubricant as possible. The cross-sectional shape of the piston ring body is preferably rectangular or trapezoidal. In the present application, the square grooves are preferably 6-12, evenly distributed on the upper surface of the piston ring body. The groove width of the groove is 2.5-5mm, and the groove depth is 0.10-0.25 mm. Through the data matching, a more lubricating effect can be achieved.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel piston ring gas ring comprises a piston ring body (1) and is characterized in that,

at least one of the upper surface (4) of the piston ring body and the lower surface (3) of the piston ring body is provided with a groove (2) in the radial direction;

the inner side face of the piston ring body is communicated with the outer side face of the piston ring body through the groove.

2. A steel piston ring gas ring according to claim 1, wherein said groove is provided on an upper surface (4) of said piston ring body.

3. A steel piston ring gas ring according to claim 2, wherein said groove is a square groove.

4. A steel piston ring gas ring according to claim 3, wherein said square grooves are 6-12, uniformly distributed on the upper surface of said piston ring body.

5. The steel piston ring as claimed in claim 4, wherein said square groove has a groove width of 2.5-5mm and a groove depth of 0.10-0.25 mm.

6. A steel piston ring gas ring according to claim 2, wherein said piston ring body is made of an alloy spring steel or a martensitic stainless steel.

7. A steel piston ring gas ring according to claim 2, wherein said piston ring body has a rectangular or trapezoidal cross-sectional shape.