[특허]Pneumatic/hydraulic remote power unit

Pneumatic/hydraulic remote power unit 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16D-031/00 F15B-021/04
출원번호	US-0202198 (1994-02-25)
발명자 / 주소	Plyter Walter J. (Maitland FL)
출원인 / 주소	Daniels Manufacturing Corporation (Orlando FL 02)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

Apparatus for supplying high pressure hydraulic fluid to a hand tool comprises an intensifier having a first relatively large diameter pneumatic cylinder and a second relatively small diameter hydraulic cylinder containing hydraulic fluid. A first piston is operatively positioned in the pneumatic cylinder and mechanically coupled to a second piston operatively positioned in the hydraulic cylinder. An air switching valve is connected between a source of pressurized air and the pneumatic cylinder and has a first air outlet port connected to a first end of the pneumatic cylinder and operative in a pressurizing mode for supplying air pressure to drive the first piston in a direction to pressurize the hydraulic fluid. The valve also has a second air outlet port connected to a second end of the pneumatic cylinder and operative in a depressurizing mode for supplying air for retracting the first piston and depressurizing the hydraulic fluid. A pressure responsive valve is coupled for sensing pressure of the hydraulic fluid and responsive thereto for affecting switching of the switching valve from the pressurizing mode to the depressurizing mode when the pressure of the hydraulic fluid reaches a preselected value.

대표청구항 ▼

A system for operation of a hydraulically actuated hand tool comprising a hydraulic cylinder operatively mounted in the tool; a controllable source of hydraulic fluid including fluid carrying tubing extending from said source to the tool, said source including pressurizing means for pressuring said fluid to a preset value, said pressurizing means including a pneumatically actuated piston; means for introducing air pressure to the piston for pressurizing said hydraulic fluid carrying tubing and actuating said tool; means responsive to said pressurized hydraulic fluid for automatically depressurizing said hydraulic fluid when hydraulic fluid pressure reaches said preset value; and switching means responsive to said hydraulic pressure for applying air pressure to an opposite side of said piston for removing hydraulic pressure from the tool.

이 특허를 인용한 특허 (45)

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McBride, Troy O.; Cook, Robert; Bollinger, Benjamin R.; Doyle, Lee; Shang, Andrew; Wilson, Timothy; Scott, Michael Neil; Magari, Patrick; Cameron, Benjamin; Deserranno, Dimitri, Energy storage and generation systems and methods using coupled cylinder assemblies.
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McBride, Troy O.; Cook, Robert; Bollinger, Benjamin R.; Doyle, Lee; Shang, Andrew; Wilson, Timothy; Scott, Micheal Neil; Magari, Patrick; Cameron, Benjamin; Deserranno, Dimitri, Energy storage and generation systems and methods using coupled cylinder assemblies.
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McBride, Troy O.; Scott, Michael Neil; Modderno, Jeffrey; Bollinger, Benjamin R., High-efficiency energy-conversion based on fluid expansion and compression.
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Bollinger, Benjamin; Magari, Patrick; McBride, Troy O., High-efficiency heat exchange in compressed-gas energy storage systems.
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Thelen, Bernd; Sittig, Ulf; Andres, Günter, Hydraulic pressure supply unit for a power screwdriver.
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Bollinger, Benjamin; Magari, Patrick; McBride, Troy O., Improving efficiency of liquid heat exchange in compressed-gas energy storage systems.
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McBride, Troy O.; Bollinger, Benjamin R., Increased power in compressed-gas energy storage and recovery.
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McBride, Troy O.; Bollinger, Benjamin R., Increased power in compressed-gas energy storage and recovery.
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Glaser, Donald J.; Tidwell, Lon C.; James, Kevin M., Proportional pilot-controlled pneumatic control system for pneumatically powered hand-held tools.
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Glaser, Donald J.; Tidwell, Lon C.; James, Kevin M., Proportional pilot-controlled pneumatic control system for pneumatically powered hand-held tools.
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Bollinger, Benjamin R., System and method for rapid isothermal gas expansion and compression for energy storage.
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Bollinger, Benjamin R., System and method for rapid isothermal gas expansion and compression for energy storage.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin, Systems and methods for combined thermal and compressed gas energy conversion systems.
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McBride, Troy O.; Bollinger, Benjamin; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin, Systems and methods for combined thermal and compressed gas energy conversion systems.
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McBride, Troy O.; Bollinger, Benjamin R.; Schaefer, Michael; Kepshire, Dax, Systems and methods for compressed-gas energy storage using coupled cylinder assemblies.
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McBride, Troy O.; Bollinger, Benjamin R.; Scott, Michael Neil; Cook, Robert; Magari, Patrick J., Systems and methods for efficient pumping of high-pressure fluids for energy.
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McBride, Troy O.; Bollinger, Benjamin, Systems and methods for energy storage and recovery using compressed gas.
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McBride, Troy O.; Bollinger, Benjamin R.; Schaefer, Michael; Kepshire, Dax, Systems and methods for energy storage and recovery using gas expansion and compression.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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Bollinger, Benjamin R.; McBride, Troy O.; Schaefer, Michael, Systems and methods for improving drivetrain efficiency for compressed gas energy storage.
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Bollinger, Benjamin R.; McBride, Troy O., Systems and methods for improving drivetrain efficiency for compressed gas energy storage and recovery systems.
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McBride, Troy O.; Bollinger, Benjamin; McCormick, John; Cameron, Benjamin, Systems and methods for reducing dead volume in compressed-gas energy storage systems.
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Koch Robert D., Tool bar handle.
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