Invention Grant
- Patent Title: Electro-hydraulic actuator including a release valve assembly
- Patent Title (中): 电动液压致动器包括一个释放阀组件
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Application No.: US13079968Application Date: 2011-04-05
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Publication No.: US08997626B2Publication Date: 2015-04-07
- Inventor: David J. Anderson
- Applicant: David J. Anderson
- Applicant Address: US OH Cleveland
- Assignee: Parker-Hannifin Corporation
- Current Assignee: Parker-Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: F16K31/12
- IPC: F16K31/12 ; F16K17/04 ; F15B15/18 ; F16K15/04 ; F16K17/08

Abstract:
A manual release valve is provided for a electro-hydraulic actuator of the type including a piston movable in a cylinder and defining a piston side chamber and a rod side chamber, the valve threadedly attached to the housing of the actuator and extending at least partially within the fluid housing conduits, the valve moveable from a closed position fully seated in the housing to an open position for fluidly connecting both the piston side chamber and the rod side chamber to the reservoir, the valve further including a pressure relief portion that is operable when the valve is in the closed position for relieving pressure from at least one of the piston side chamber or the rod side chamber.
Public/Granted literature
- US20110248196A1 ELECTRO-HYDRAULIC ACTUATOR INCLUDING A RELEASE VALVE ASSEMBLY Public/Granted day:2011-10-13
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