Labyrinth Piston Ring

A piston ring and labyrinth technology, applied in the field of piston rings, can solve the problems of environmental pollution, low economic benefits, affecting the sealing effect, etc.

Active Publication Date: 2016-01-27
宁波高新区世代能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, due to the leakage at the opening of the piston ring, gas and oil leakage not only affects the sealing effect, but also seriously affects the energy conversion efficiency, resulting in serious waste of energy, environmental pollution, and low economic benefits.

Method used

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  • Labyrinth Piston Ring

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Embodiment Construction

[0005] A kind of labyrinth piston ring, the two ends of the opening of the outer ring surface of the piston ring are symmetrical and evenly distributed with two small blind holes of equal size, which are used for the installation of the piston ring; the sealing of the opening of the piston ring is based on the teeth In the way of meshing with the teeth, the radial meshing gap between the teeth at both ends of the piston ring is equal to the gap at the opening of the piston ring, and the radial meshing gap between the teeth at both ends of the piston ring is much larger than that between the teeth at both ends of the piston ring. The circumferential meshing clearance of the piston ring teeth can be of equal height and width or equal height and unequal width or unequal height and width or unequal height and unequal width. The radial meshing clearance between the teeth and teeth at both ends of the piston ring is equal in size. If conditions permit, the more meshing teeth the pist...

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Abstract

The invention provides a labyrinth type piston ring. Two small blind holes of equal size are symmetrically and evenly distributed at the two ends of an opening of an outer ring surface of the piston ring and are used when the piston ring is mounted; a seal at the opening of the piston ring adopts a manner that teeth at the two ends of the piston ring are mutually meshed; the sizes of radial meshing clearances among the teeth at the two ends of the piston ring are equal to the sizes of clearances at an opening of the existing piston ring, and the radial meshing clearances of the teeth at the two ends of the piston ring are far greater than circumferential meshing clearances of the teeth at the two ends of the piston ring; the teeth of the piston ring can be of equal height and equal width, of equal height and different widths, of different heights and equal width, or of different heights and different widths; the sizes of the radial meshing clearances of the teeth at the two ends of the piston ring are equal; and the more the number of the meshing teeth of the piston ring is, the better the seal is. Thus, the labyrinth type seal is formed by the radial meshing clearances and the circumferential meshing clearances of the mutually-meshed teeth at the two ends of the piston ring; and since an oil film formed by lubricating oil exists among a piston, a cylinder and the piston ring, a compound seal is formed by the oil film seal and the labyrinth type seal and the function of sealing the piston ring is fully realized.

Description

technical field [0001] The field that the present invention relates to is: the piston ring field of reciprocating engine, steam turbine. Background technique [0002] In the prior art, the leakage, gas and oil leakage at the opening of the piston ring not only affects the sealing effect, but also seriously affects the energy conversion efficiency, resulting in serious energy waste, environmental pollution, and low economic benefits. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a labyrinth piston ring in view of the current state of the art above. The beam shrinkage effect, the technical solution adopted by the present invention to solve the above technical problems is: a labyrinth piston ring, two small blind holes of equal size are symmetrically distributed at both ends of the outer ring surface of the piston ring, and are used for piston rings. Used during installation; the seal at the opening of the piston...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F5/00F16J9/14
Inventor 赵军政赵倩
Owner 宁波高新区世代能源科技有限公司
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