Title:
CRYOGENIC FLUID SHUT-OFF VALVE
Document Type and Number:
WIPO Patent Application WO/2022/199057
Kind Code:
A1
Abstract:
Shut-off valves for cryogenic fluids are disclosed herein. An example valve includes a valve body defining a flow path and a valve seat, a bonnet coupled to the valve body and defining a bonnet chamber, a plug configured to slide between a closed position, and a stem coupled to the plug. The stem is configured to slide to cause the plug to slide. The valve includes a spindle that includes external threads. The spindle is configured to move along a longitudinal axis of the bonnet as the spindle is rotated about the longitudinal axis via the external threads to cause the stem to slide linearly along the longitudinal axis. The valve includes a pivot ball positioned between and operatively coupled to the stem and the spindle. The pivot ball is configured to translate linear and rotational movement of the spindle into linear movement of the stem and the plug.
Inventors:
CAO GUANGBIN (CN)
Application Number:
PCT/CN2021/131141
Publication Date:
September 29, 2022
Filing Date:
November 17, 2021
Export Citation:
Assignee:
ENGINEERED CONTROLS INT LLC (US)
SHANGHAI REGO FLOW TECH CO LTD (CN)
SHANGHAI REGO FLOW TECH CO LTD (CN)
International Classes:
F16K1/50; F16K1/00; F16K1/48; F16K31/60; F16K37/00; F16K41/10
Foreign References:
| US6302374B1 | 2001-10-16 | |||
| CN203272811U | 2013-11-06 | |||
| CN101334116A | 2008-12-31 | |||
| CN203413129U | 2014-01-29 | |||
| CN203868362U | 2014-10-08 | |||
| CN211901626U | 2020-11-10 | |||
| CN111022654A | 2020-04-17 | |||
| CN203500516U | 2014-03-26 | |||
| US5158106A | 1992-10-27 |
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (CN)
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