Title:
MULTI-STAGE BUFFER HYDRAULIC CYLINDER FOR WAVE ENERGY POWER GENERATION DEVICE, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/193822
Kind Code:
A1
Abstract:
A multi-stage buffer hydraulic cylinder for a wave energy power generation device, and a control method. A built-in fixing rod (11) is arranged inside a hydraulic cylinder barrel (1) and is nested in a piston rod (9), and an inner cavity of the built-in fixing rod (11) and an inner cavity of the piston rod (9) are used as a high-pressure working cavity, so that the diameter of the piston rod (9) can be increased while the effective working area is reduced. In addition, buffer springs (13, 14) are provided on a front end cover (8) and a rear end cover (2) of the hydraulic cylinder.
Inventors:
YE YIN (CN)
WANG KUNLIN (CN)
SHENG SONGWEI (CN)
WANG ZHENPENG (CN)
WANG KUNLIN (CN)
SHENG SONGWEI (CN)
WANG ZHENPENG (CN)
Application Number:
PCT/CN2023/091032
Publication Date:
October 12, 2023
Filing Date:
April 27, 2023
Export Citation:
Assignee:
GUANGZHOU INST ENERGY CONVERSION CAS (CN)
International Classes:
F15B15/14; F03B13/18; F15B1/02; F15B11/072; F15B15/20; F15B15/22
Foreign References:
| CN114893468A | 2022-08-12 | |||
| CN112696306A | 2021-04-23 | |||
| CN211039231U | 2020-07-17 | |||
| CN114109929A | 2022-03-01 | |||
| CN111336058A | 2020-06-26 | |||
| CN204664021U | 2015-09-23 | |||
| DE102007050350A1 | 2009-04-02 |
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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