Invention Grant
- Patent Title: Valve assembly
- Patent Title (中): 阀组件
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Application No.: US13141510Application Date: 2009-12-22
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Publication No.: US09052032B2Publication Date: 2015-06-09
- Inventor: Niall James Caldwell , William Hugh Salvin Rampen , Uwe Bernhard Pascal Stein
- Applicant: Niall James Caldwell , William Hugh Salvin Rampen , Uwe Bernhard Pascal Stein
- Applicant Address: GB Loanhead
- Assignee: ARTEMIS INTELLIGENT POWER LIMITED
- Current Assignee: ARTEMIS INTELLIGENT POWER LIMITED
- Current Assignee Address: GB Loanhead
- Agency: Lowe Hauptman & Ham, LLP
- Priority: EP08172665 20081222; EP08172666 20081222
- International Application: PCT/GB2009/051762 WO 20091222
- International Announcement: WO2010/073040 WO 20100701
- Main IPC: F15B13/04
- IPC: F15B13/04 ; F16K31/08 ; F16K47/08 ; F16K31/06

Abstract:
A valve assembly for regulating the flow of fluid between a working chamber of a fluid-working machine and a fluid manifold. The valve assembly comprising a valve body comprising a valve seat, a fluid passage extending through the valve body, and a travelling member comprising a valve member and operable between an open position in which the valve member is spaced apart from the valve seat and fluid can flow through the fluid passage and a closed position in which the valve member is in sealing contact with the valve seat preventing fluid from flowing through the fluid passage. The valve assembly further defines a fluid flow path passing in a first fluid flow mode, between the valve member and the valve seat, and into the fluid passage. The valve assembly is characterized by a barrier upstream of the valve member, to the barrier reduces one or more forces which would otherwise act on the valve member as a result of the flow of fluid to urge the valve member towards the valve seat. Thus, one or more forces which would otherwise act on the valve member to urge the valve member to the closed position due to the flow of fluid past the valve member in the first fluid flow mode are reduced or removed. There is also disclosed a valve assembly in which fluid flowing along the said fluid flow path is incident on the downstream surface of the valve member at an angle of at least 80° to the direction in which the valve member is operable to travel between the open position and the closed position.
Public/Granted literature
- US20110315003A1 VALVE ASSEMBLY Public/Granted day:2011-12-29
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