Title:
COMBINED TYPE PISTON RING OF CRUSHING HAMMER
Document Type and Number:
WIPO Patent Application WO/2022/160964
Kind Code:
A1
Abstract:
A combined type piston ring of a crushing hammer, comprising a piston ring body (1). O-shaped seal rings (2) are sleeved at two ends of the piston ring body (1); a copper ring holder (3) is provided on an end face of the piston ring body (1); one end of the copper ring holder (3) abuts against one end of the piston ring body (1); a copper ring (4) is provided in the copper ring holder (3); and a plurality of annular balance grooves (5) are formed in the copper ring (4).
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Inventors:
CHEN WEIHAO (CN)
Application Number:
PCT/CN2021/136660
Publication Date:
August 04, 2022
Filing Date:
December 09, 2021
Export Citation:
Assignee:
ZHEJIANG LINGDE HEAVY IND CO LTD (CN)
International Classes:
F16J9/12; F16J9/26
Foreign References:
| CN214367698U | 2021-10-08 | |||
| CN205965961U | 2017-02-22 | |||
| CN210565462U | 2020-05-19 | |||
| CN101598158A | 2009-12-09 | |||
| CN205918683U | 2017-02-01 | |||
| GB190925687A | 1910-03-03 |
Attorney, Agent or Firm:
ZHEJIANG ZHUANCHENG LAW FIRM (CN)
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