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1. 发明公开

US20230417262A1 AIR CONTROL CIRCUIT EQUIPPED WITH SAFETY FEATURE 审中-公开
公开(公告)号：US20230417262A1
公开(公告)日：2023-12-28
申请号：US18252911
申请日：2021-10-21
申请人： SMC CORPORATION
发明人： Akira ENZAKI
IPC分类号： F15B20/00 , G05D16/20 , F15B11/06
CPC分类号： F15B20/008 , G05D16/2033 , G05D16/2024 , F15B11/06
摘要： An air control circuit including a safety function is simply formed from an air circuit. An air control circuit includes a main air line that controls an air device by concurrently turning on or off two external-pilot-operated electromagnetic valves, a pilot air line that supplies pilot air to the electromagnetic valves, and a pilot control line that switches the pilot air line between a supply state and an exhaust state. When one of the two electromagnetic valves suffers a breakdown to fail to be switched to an off position, air in the air device is exhausted through the other electromagnetic valve that has been switched to the off position to recover the air device, and the pilot air line is switched to the exhaust state by the pilot control line to prevent the two electromagnetic valves from restarting.

2. 发明授权

US11835184B2 Method for preventing spills resulting from pipeline failures 有权
公开(公告)号：US11835184B2
公开(公告)日：2023-12-05
申请号：US17946566
申请日：2022-09-16
申请人： Safe Crossings, LLC
发明人： R. Dale Moretz
IPC分类号： F17D5/02 , F17D5/00 , F17D1/14 , G01M3/28 , F16L58/10 , B67D7/32 , F16K17/02 , F16L55/10 , F16K17/34 , F16K31/12 , E21B43/01 , G05D16/16 , F15B20/00
CPC分类号： F17D5/02 , B67D7/3209 , B67D7/3218 , E21B43/0122 , F15B20/005 , F16K17/02 , F16K17/34 , F16K31/12 , F16L55/1022 , F16L58/1009 , F17D1/14 , F17D5/00 , F17D5/005 , G01M3/2815 , G05D16/16 , F16L2201/30 , G05B2219/31356 , Y10T137/0452 , Y10T137/7727 , Y10T137/7762
摘要： A petroleum pipeline safety system for preventing contamination of an environmentally sensitive area close to a pipeline is provided. The system includes a first portion of the pipeline including an upstream portion of the pipeline supplying a flow of fluid material and a flow restriction downstream of the first portion of the pipeline. The system further includes a second portion of the pipeline downstream of the flow restriction, receiving the flow of fluid material from the first portion and conveying the flow of fluid material through the environmentally sensitive area to a downstream portion of the pipeline. The flow restriction is configured to create a lower pipeline internal pressure within the second portion as compared to a pipeline internal pressure within the first portion. The system further includes a third portion of the pipeline downstream of the environmentally sensitive area and including the downstream portion of the pipeline.

3. 发明公开

US20230358256A1 Oil Leak Mitigation for Hydraulic Systems 审中-公开
公开(公告)号：US20230358256A1
公开(公告)日：2023-11-09
申请号：US18142614
申请日：2023-05-03
申请人： J. E. Myles, Inc. Control Power Division
发明人： Scott Myles
IPC分类号： F15B15/14 , F15B20/00
CPC分类号： F15B15/1452 , F15B20/005
摘要： A system for oil leak mitigation in hydraulic systems. The systems and methods prevent or mitigate oil leakage from hydraulic components. In one embodiment, a flexible bellows is provided positioned over a hydraulic rod to collect leaking oil. The bellows is connected to the hydraulic actuator by means of at least one magnet, in one embodiment. In another embodiment, a sleeve is connected to the actuator to collect oil droplets. The sleeve is connected to the actuator by means of a 4-bolt flange (in some embodiments).

4. 发明公开

US20230349401A1 REDUNDANT VALVE MANIFOLD SYSTEM 审中-公开
公开(公告)号：US20230349401A1
公开(公告)日：2023-11-02
申请号：US18221106
申请日：2023-07-12
申请人： ROSS OPERATING VALVE COMPANY
发明人： Thomas Peter Thornber , Christopher John Perkins
IPC分类号： F15B20/00 , F15B13/02 , F15B19/00
CPC分类号： F15B20/008 , F15B13/028 , F15B19/005 , F15B2211/8636 , F15B2211/87 , F15B2211/8757
摘要： A redundant valve manifold system includes at least two automatic valves coupled to one another and at least two automatic isolation valves each corresponding to one of the at least two automatic valves. Each of at least two automatic isolation valves is operatively coupled to one of the at least two automatic valves and isolates the one of the at least two automatic valves when the one of the at least two automatic valves is removed from the system to deliver media to an outlet.

5. 发明授权

US11643062B2 Vehicle brake system and diagnostic method for determining a leak in one or more three-way valves 有权
公开(公告)号：US11643062B2
公开(公告)日：2023-05-09
申请号：US16687766
申请日：2019-11-19
申请人： ZF Active Safety US Inc.
发明人： Blaise Ganzel
IPC分类号： B60T17/22 , B60T8/40 , F16K11/10 , F15B20/00
CPC分类号： B60T17/223 , B60T8/4077 , F15B20/005 , F16K11/105 , B60T2270/406
摘要： A diagnostic method to identify a leak in a three-way valve for a vehicle brake system having a remote master cylinder which includes the steps of: (1) providing a pedal simulator having pressure medium; (2) de-energizing a secondary three-way valve; (3) retracting a dual acting plunger to the home position to drop the pressure in the boost circuit to zero while also monitoring the pressure at the output of a fluid separator via a secondary master cylinder pressure sensor; (4) determining a rate of pressure reduction at the output of a fluid separator via a secondary master cylinder pressure sensor; and (5) identifying a leak in at least one of a primary three-way valve and the secondary three way valve if the rate of pressure reduction is equal to or higher than a pre-determined rate.

6. 发明申请

US20230095438A1 AUTOMOTIVE HYDRAULIC SYSTEM SMART MONITOR AND SAFETY SYSTEMS AND DEVICES 有权
公开(公告)号：US20230095438A1
公开(公告)日：2023-03-30
申请号：US17490007
申请日：2021-09-30
申请人： Curtis Randolph
发明人： Curtis Randolph
IPC分类号： F15B19/00 , F15B20/00
摘要： Systems, devices, and methods are included for automotive hydraulic system smart safety switches that cut power to hydraulic motors when faults are detected using sensors, timers, and probes.

7. 发明申请

US20230035122A1 Power Units with Manual Override Controls for Hydraulic Systems 有权
公开(公告)号：US20230035122A1
公开(公告)日：2023-02-02
申请号：US17960747
申请日：2022-10-05
申请人： KTI Hydraulics Inc.
发明人： John King
IPC分类号： F15B20/00 , B60P1/16 , F15B11/00
摘要： A power unit with manual override control for a hydraulic system having an initial state and at least one operational state is provided, comprising: a tank for storing hydraulic fluid that moves between a first chamber and a second chamber of a hydraulic cylinder; a pump that routes the hydraulic fluid in and out of the tank; a first relief valve; a first solenoid valve configured to shift between a plurality of positions based on the at least one operational state of the hydraulic system; a first check valve connected to the first solenoid valve; a manual override control unit comprising: a second check valve; and a second solenoid valve configured to shift between a plurality of positions based on activation of a manual override control, wherein the activation of the manual override control returns the hydraulic system from the at least one operational state to the initial state.

8. 发明申请

US20230026318A1 ELECTROHYDROSTATIC SYSTEM WITH PRESSURE SENSOR 有权
公开(公告)号：US20230026318A1
公开(公告)日：2023-01-26
申请号：US17779622
申请日：2020-11-18
申请人： Moog GmbH
发明人： Sascha Dany , Sven Müller , Kohlhaas Reiner
IPC分类号： B30B15/20 , B30B15/28 , F15B15/18 , F15B13/02 , F15B20/00
摘要： The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit, designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, wherein the bypass connection is connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor that is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.

9. 发明申请

US20230015389A1 METHOD FOR TESTING THE FUNCTIONALITY OF A SOLENOID VALVE FOR TRIGGERING A SAFETY VALVE 有权
公开(公告)号：US20230015389A1
公开(公告)日：2023-01-19
申请号：US17786457
申请日：2020-12-17
申请人： SAMSON AKTIENGESELLSCHAFT
发明人： David Wagner-Stürz
IPC分类号： F16K37/00 , F16K31/42 , F15B20/00 , F15B19/00
摘要： The disclosure provides a method for testing a solenoid valve for triggering a safety valve having a single-acting fluidic drive and a positioner. The drive fluid pressure is increased by a first pressure difference. An attempt is made to switch the solenoid valve to the safety position. The drive fluid pressure is measured at a specified point in time that is selected such that the pressure in the drive fluid lowers at most by the first pressure difference. If the pressure in the drive fluid is higher than a reference pressure at the specified point in time, the functionality test of the solenoid valve is failed. The lowering of the pressure in the drive fluid is monitored over a defined period of time to make conclusions regarding the pressure generating system. The pressure does not fall below the operating pressure so the position of the valve member remains constant.

10. 发明申请

US20220403860A1 Electrohydraulic System for a Valve 有权
公开(公告)号：US20220403860A1
公开(公告)日：2022-12-22
申请号：US17755392
申请日：2020-10-20
申请人： Robert Bosch GmbH
发明人： Alexandre Orth , Gottfried Hendrix , Tor Jensen
IPC分类号： F15B20/00 , F15B15/06 , F15B13/02
摘要： An electrohydraulic system includes an output shaft, a hydraulic piston, and a preload device. The output shaft rotationally drives the valve and extends along a first axis. The hydraulic piston extends along a second axis perpendicular to the first axis, is actuated by a pressure medium, and rotates the output shaft. The preload device stores energy via preloading of an elastic element, which extends along a third axis, by a hydraulic cylinder and to transmit the energy to the output shaft in the event of a fault. The hydraulic piston is guided into first and second cylinder housings, and at least one of the cylinder housings is connected to the hydraulic cylinder. A check valve is arranged between the cylinder housing and the hydraulic cylinder, and is configured to decouple the preload device from the hydraulic piston, the blocking direction going from the hydraulic cylinder to the cylinder housing.

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