Title:
HYDROGEN CIRCULATION PUMP FOR HYDROGEN FUEL CELL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/161532
Kind Code:
A1
Abstract:
A hydrogen circulation pump for a hydrogen fuel cell system comprises a motor (1), a pump body (2), and a magnetic connection structure (3). The motor (1) has a driving end (11). The pump body (2) has a first camshaft (213). The magnetic connection structure (3) comprises a first magnetic member (31), a magnetically permeable isolation member (32), and a second magnetic member (33). The first magnetic member (31) is connected to the first camshaft (213). The second magnetic member (33) is connected to the driving end (11) of the motor. The second magnetic member (33) is opposite the first magnetic member (31). The magnetically permeable isolation member (32) is connected to the pump body (2) in a sealed manner, and is used to isolate the first magnetic member (31) and the second magnetic member (33). During assembly of the circulation pump of the invention, a sealing ring can be effectively prevented from being scratched or damaged, avoiding hydrogen leakage caused by a damaged sealing member resulting from friction between a rotating transmission shaft and the sealing member, thereby effectively improving sealing performance with respect to hydrogen, and resulting in high safety.
Inventors:
GU JIANJUN (CN)
GU QIULIN (CN)
GU FENG (CN)
GU QIULIN (CN)
GU FENG (CN)
Application Number:
PCT/CN2017/102843
Publication Date:
September 13, 2018
Filing Date:
September 22, 2017
Export Citation:
Assignee:
TAICANG SHUNDA MAGNETIC PUMP TECH CO LTD (CN)
International Classes:
F04C2/18; F04C13/00
Foreign References:
| CN106678040A | 2017-05-17 | |||
| US5215501A | 1993-06-01 | |||
| CN103104490A | 2013-05-15 | |||
| US3238883A | 1966-03-08 | |||
| CN104500392A | 2015-04-08 | |||
| CN206290431U | 2017-06-30 |
Attorney, Agent or Firm:
LIAN & LIEN IP ATTORNEYS (CN)
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