Invention Grant
- Patent Title: Valve system for drilling systems
- Patent Title (中): 钻井系统阀门系统
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Application No.: US12768066Application Date: 2010-04-27
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Publication No.: US08028613B2Publication Date: 2011-10-04
- Inventor: Stefan Wrede , Christof Kruse
- Applicant: Stefan Wrede , Christof Kruse
- Applicant Address: US UT South Jordan
- Assignee: Longyear TM, Inc.
- Current Assignee: Longyear TM, Inc.
- Current Assignee Address: US UT South Jordan
- Agency: Workman Nydegger
- Main IPC: F15B13/042
- IPC: F15B13/042
Abstract:
A valve system includes a load holding valve, a feed balancing valve, and a fast feed differential valve. The load holding valve may be in fluid communication with the load holding valve. The fast feed differential valve is configured to move between an engaged state and a disengaged state. In the engaged state the fast feed differential valve fluidly couples a ring side of a feed cylinder, the load holding valve, and a piston side of the feed cylinder to allow fluid to flow from the ring side to the piston side.
Public/Granted literature
- US20100276023A1 VALVE SYSTEM FOR DRILLING SYSTEMS Public/Granted day:2010-11-04
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