Combined Pistons for Air Compressors

An air compressor and combined piston technology, which is applied in the field of air compressors, can solve problems such as reducing efficiency, increasing compression work, and reducing air volume, and achieves the effects of simple and compact structure, improved exhaust efficiency, and improved intake efficiency

Active Publication Date: 2017-02-01
HEFEI GENERAL MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air compressor with this structure always has a clearance volume at the end of the exhaust process, and the compressed air in the clearance volume will expand during the next suction, thereby reducing the amount of air sucked in, reducing efficiency, and increasing Compression work

Method used

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  • Combined Pistons for Air Compressors
  • Combined Pistons for Air Compressors
  • Combined Pistons for Air Compressors

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, the illustration shows a combined piston for an air compressor.

[0038] The combined piston includes a piston body 1 , a piston end cover 2 and a piston ring 3 arranged in a cylinder 5 .

[0039]The piston ring 3 is arranged between the side of the piston body 1 and the inner wall of the cylinder, and the piston ring 3 has an elliptical or quasi-elliptical annular outer edge surface that matches the inner wall of the compressor cylinder 5. The piston ring 3 is made of a durable Abrasion, high pressure, high and low temperature resistant filled PTFE material achieves better sealing performance and increases the service life of the piston assembly.

[0040] Such as figure 1 , 2 As shown, the piston end cover 2 is fixedly connec...

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PUM

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Abstract

The invention relates to a combined piston for an air compressor. The combined piston provided by the invention comprises a piston body arranged in a cylinder, and a piston end cover, wherein the piston end cover is fixed on the piston body through a fastening piece, a first air inlet hole is formed in the piston body in the axial direction, a second air inlet hole is formed in the piston end cover, a valve piece is arranged between the piston end cover and the piston body, during the air intake of the cylinder, the edge of the valve piece is lifted so as to enable the first air inlet hole to be communicated with the second air inlet hole, or during air exhaust of the cylinder, a seal cover is positioned in the position of the first air inlet hole so as to enable the first air inlet hole and the second air inlet hole to be under two mutually isolated states; a lift limiter or a lift limiting structure for limiting the lifting angle of the valve piece is arranged on the piston end cover. The combined piston provided by the invention has a simple and compact structure, is convenient to disassemble, and is suitable for being mounted on a minitype air compressor with small space dimension. The combined piston provided by the invention can remarkably improve the air intake efficiency of the air compressor, can enable the interior of the cylinder to be excellent in air tightness during a compression process, improves the air exhaust efficiency, and saves energy consumption of the compressor.

Description

technical field [0001] The invention belongs to the field of air compressors, in particular to a combined piston for an air compressor. Background technique [0002] The air compressor is one of the tools that people often use in production and life. Usually, the compressor includes a piston assembly and a cylinder. The piston assembly and the cylinder cooperate to form a compression chamber. The design of the piston assembly is closely related to the performance of the air compressor. [0003] The piston assembly in the air compressor in the prior art mainly includes a piston body, a piston ring, and a piston rod. An inner hole is formed in the center of the piston body. The piston rod passes through the inner hole and is fixedly connected with the piston body. An annular groove is formed, and the piston ring is installed in the annular groove to seal the gap between the piston body and the cylinder, and the piston assembly may include a plurality of piston rings. Chinese ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04B39/10
Inventor 毛京兵薛卫东任芳潘艺昌鲍军
Owner HEFEI GENERAL MACHINERY RES INST
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