Invention Grant
- Patent Title: Driving and adjusting device of passive shuttle-type shut-off valve
- Patent Title (中): 被动梭式截止阀的驱动和调节装置
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Application No.: US13638068Application Date: 2011-04-01
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Publication No.: US08740176B2Publication Date: 2014-06-03
- Inventor: Xiangwei Zeng
- Applicant: Xiangwei Zeng
- Applicant Address: CN Sichuan
- Assignee: Xiangwei Zeng
- Current Assignee: Xiangwei Zeng
- Current Assignee Address: CN Sichuan
- Agency: The Webb Law Firm
- Priority: CN201010137573 20100401
- International Application: PCT/CN2011/000570 WO 20110401
- International Announcement: WO2011/120338 WO 20111006
- Main IPC: F16K1/12
- IPC: F16K1/12 ; F16K31/122

Abstract:
A driving and adjusting device of a passive shuttle-type shut-off valve is provided. The problems of a big valve body structure size, a non-random angle installment, a single drive mode, low stability and reliability, a high temperature and poisonous material entering into the driving and adjusting device and unadjustable on-off speed and low volume in the prior device are solved. A main body (33) is connected with an upstream pipe (1) and a downstream pipe (3). A pressure port (2) on the upstream pipe (1) is connected with the driving device. A double acting cylinder (34) is provided in a valve sleeve (21). The left and right chambers of the double acting cylinder are connected with the valve clack (24). The driving device is composed of a regulating valve, a directional valve, a check valve, a boost-insulation valve and an accumulator (18). It can select the drive mode and adjust the on-off speed and the flow volume of the valve.
Public/Granted literature
- US20130207011A1 Driving and Adjusting Device of Passive Shuttle-Type Shut-Off Valve Public/Granted day:2013-08-15
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