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公开(公告)号：US10197141B2
公开(公告)日：2019-02-05
申请号：US14931509
申请日：2015-11-03
Applicant: METSO FLOW CONTROL USA INC.
Inventor： Leonard T. Armstrong
Abstract: Aspects of the disclosure provide an electric actuator including a first driving source coupled to an output through a first pathway created by a transmission, a second driving source coupled to the output though a second pathway created by the transmission that, upon the electric actuator losses electrical power to the electric actuator, causes the output to be positioned at a fail-safe position, a differential coupled to the first driving source and the second driving source through a third pathway created by the transmission to store energy from the first driving source in the second driving source, and a switching controller that is configured to control switching the transmission between the first pathway, the second pathway, and the third pathway.
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公开(公告)号：US20170167627A1
公开(公告)日：2017-06-15
申请号：US15436265
申请日：2017-02-17
Applicant: METSO FLOW CONTROL USA INC.
Inventor： Ross Kunz
CPC classification number: F16K31/0679 , F16K11/044 , F16K11/0712 , F16K27/0263 , F16K27/029 , F16K27/041 , F16K31/0675 , F16K31/0682 , H01F1/14708 , H01F7/064 , H01F7/16 , H01F7/1638 , Y10T137/86614 , Y10T137/86622 , Y10T137/87885
Abstract: A solenoid valve has a housing defining a first axis and second axis, a solenoid which produces a magnetic field along the first axis, a valve shaft movable between a first position and a second position along the second axis, and a manifold mounted to the housing. The valve shaft is biased toward the first position by a spring and mechanical forces sufficient to overcome the force of the spring are transferred from the solenoid to the shaft by a lever to displace the shaft to its second position. A poppet seal affixed to the shaft, which interacts with a portion of the housing to close an outlet port in the housing, and a spool seal, also affixed to the shaft which interacts with a wall of the manifold defining an exhaust port to route fluid to the desired port. An electronic circuit controls delivery of current to the solenoid to shift and hold the shaft in the second position.
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公开(公告)号：US10480633B2
公开(公告)日：2019-11-19
申请号：US16225685
申请日：2018-12-19
Applicant: METSO FLOW CONTROL USA INC.
Inventor： Leonard T. Armstrong
IPC: F16H37/08 , F16H48/08 , F16K31/02 , H01F7/08 , F16H3/72 , F16H33/00 , F16K31/04 , F16H33/02 , F16H33/12
Abstract: Aspects of the disclosure provide an electric actuator including a fail-safe mode of operation. The electric actuator includes a mechanical stop coupled to the output through the transmission, and a brake coupled to the second driving source through the transmission, the brake being engaged to establish the first pathway through the transmission between the first driving source and the output, the brake being disengaged to establish the second pathway through the transmission between the second driving source and the output, and the mechanical stop being engaged to restrict the output from rotating beyond the fail-safe position and the brake being disengaged to establish the third pathway through the transmission between the first driving source and the second driving source.
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公开(公告)号：US20190120359A1
公开(公告)日：2019-04-25
申请号：US16225685
申请日：2018-12-19
Applicant: Metso Flow Control USA INC.
Inventor： Leonard T. ARMSTRONG
Abstract: Aspects of the disclosure provide an electric actuator including a fail-safe mode of operation. The electric actuator includes a mechanical stop coupled to the output through the transmission, and a brake coupled to the second driving source through the transmission, the brake being engaged to establish the first pathway through the transmission between the first driving source and the output, the brake being disengaged to establish the second pathway through the transmission between the second driving source and the output, and the mechanical stop being engaged to restrict the output from rotating beyond the fail-safe position and the brake being disengaged to establish the third pathway through the transmission between the first driving source and the second driving source.
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公开(公告)号：US09939082B2
公开(公告)日：2018-04-10
申请号：US15436265
申请日：2017-02-17
Applicant: METSO FLOW CONTROL USA INC.
Inventor： Ross Kunz
CPC classification number: F16K31/0679 , F16K11/044 , F16K11/0712 , F16K27/0263 , F16K27/029 , F16K27/041 , F16K31/0675 , F16K31/0682 , H01F1/14708 , H01F7/064 , H01F7/16 , H01F7/1638 , Y10T137/86614 , Y10T137/86622 , Y10T137/87885
Abstract: A solenoid valve has a housing defining a first axis and second axis, a solenoid which produces a magnetic field along the first axis, a valve shaft movable between a first position and a second position along the second axis, and a manifold mounted to the housing. The valve shaft is biased toward the first position by a spring and mechanical forces sufficient to overcome the force of the spring are transferred from the solenoid to the shaft by a lever to displace the shaft to its second position. A poppet seal affixed to the shaft, which interacts with a portion of the housing to close an outlet port in the housing, and a spool seal, also affixed to the shaft which interacts with a wall of the manifold defining an exhaust port to route fluid to the desired port. An electronic circuit controls delivery of current to the solenoid to shift and hold the shaft in the second position.
