Invention Grant
- Patent Title: Flow force reduction by incremental pressure drop
- Patent Title (中): 通过减压减压减压
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Application No.: US11500635Application Date: 2006-08-08
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Publication No.: US07766041B2Publication Date: 2010-08-03
- Inventor: John N. Tackes , Jesse O. Arias
- Applicant: John N. Tackes , Jesse O. Arias
- Applicant Address: US IL Rockford
- Assignee: Delta Power Company
- Current Assignee: Delta Power Company
- Current Assignee Address: US IL Rockford
- Agency: Foley & Lardner LLP
- Main IPC: F16K11/07
- IPC: F16K11/07

Abstract:
A fluid flow control device for improving, for example, valve operation by reducing “error forces” occurring due to fluid communication between ports of a valve having two or more ports. Incremental pressure drop passages bleed incrementally the flow of fluid between first an second ports as the valve spool is moving between the first and second positions to decrease the pressure differential generated force exerted on the spool whereby the energy required to be applied to the spool for moving the spool between the first and second positions is decreased.
Public/Granted literature
- US20080035225A1 Flow force reduction by incremental pressure drop Public/Granted day:2008-02-14
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