CERAMIC CYLINDER FOR REFRIGERANT RECOVERY MACHINE AND METHOD FOR MANUFACTURING CERAMIC CYLINDER

WIPO Patent Application WO/2018/000877

A1

A ceramic cylinder for a refrigerant recovery machine, comprising a cylinder body (1), and a connecting rod (2) extending into the cylinder body (1); the end portion of the corresponding connecting rod (2) in the cylinder body (1) is provided with a piston (3) matched with the inner wall of the cylinder body (1), the connecting rod (2) drives the piston (3) to reciprocate along the inner wall of the cylinder body (1), the inner wall of the cylinder body (1) corresponding to the piston (3) has embedded thereon a ceramic cylinder sleeve (4), and a piston ring (7) on the piston (3) is slidably connected to an inner ring surface of the ceramic cylinder sleeve (4) in an interlocking manner. Further provided is a method for manufacturing the ceramic cylinder for the refrigerant recovery machine. The ceramic cylinder is simple in structure, can effectively reduce the abrasion between the cylinder wall and the piston ring, prolong the service life of a compressor, and solve the technical problems in the prior art, such as fast abrasion of the cylinder wall and the piston ring and short service life of the compressor.

JIANG YOURONG (CN)

PCT/CN2017/079192

January 04, 2018

April 01, 2017

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ZHEJIANG VALUE MECH & ELECTRICAL PRODUCTS CO LTD (CN)

F04B39/12; B23P11/02

CN205841159U	2016-12-28
CN106089651A	2016-11-09
CN201679693U	2010-12-22
CN201786614U	2011-04-06
CN1288107A	2001-03-21
US4389921A	1983-06-28
US20060254418A1	2006-11-16

HANGZHOU HANGCHENG PATENT ATTORNEY OFFICE CO., LTD. (CN)

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