Title:
FUEL GAS PRESSURE-STABILIZING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/222252
Kind Code:
A1
Abstract:
A fuel gas pressure-stabilizing apparatus, comprising a housing (1). A first mounting cavity (2) used for mounting a first-stage pressure-reducing mechanism (01) and a second mounting cavity (3) used for mounting a second-stage pressure-reducing mechanism (02) are sequentially arranged in the housing (1) along a gas intake direction. The first-stage pressure-reducing mechanism (01) comprises a sliding sleeve (7). A mounting pipe (6) which communicates with an air inlet (001) is provided in the first mounting cavity (2). One end of the sliding sleeve (7) is slidably sleeved between the mounting pipe (6) and an inner wall of the first mounting cavity (2). The other end of the sliding sleeve (7) is provided with an exhaust port (8) and a gasket (9). An air inlet joint (5) communicates with the first mounting cavity (2) by means of the exhaust port (8). The sliding sleeve (7) slides along the axial direction for use in adjusting the opening degree of the exhaust port (8), thereby achieving first-stage pressure reduction. The fuel gas pressure-stabilizing apparatus comprises two-stage pressure-reducing mechanisms, which have simple structures and only a few components. Furthermore, the fuel gas pressure-stabilizing apparatus can effectively reduce the risk of unsafe conditions such as product leakage caused by component failure, thereby effectively ensuring the stability and accuracy of the pressure regulating performance.
Inventors:
ZHANG FENG (CN)
WEI YUNNAN (CN)
FAN JINGHUI (CN)
DAI MINXIAO (CN)
WEI YUNNAN (CN)
FAN JINGHUI (CN)
DAI MINXIAO (CN)
Application Number:
PCT/CN2021/099602
Publication Date:
October 27, 2022
Filing Date:
June 11, 2021
Export Citation:
Assignee:
NINGBO WANAN CO LTD (CN)
International Classes:
F16K17/22; F16K17/30; F16K17/34
Domestic Patent References:
| WO2020003108A1 | 2020-01-02 |
Foreign References:
| CN2791286Y | 2006-06-28 | |||
| CN105909836A | 2016-08-31 | |||
| CN111623154A | 2020-09-04 | |||
| CN102444733A | 2012-05-09 | |||
| CN203641146U | 2014-06-11 | |||
| CN210623722U | 2020-05-26 | |||
| JPH11132347A | 1999-05-21 | |||
| EP0393234A1 | 1990-10-24 |
Attorney, Agent or Firm:
NINGBO WITS IP SERVICES CO., LTD (CN)
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