[특허]Hydraulic motor system

Hydraulic motor system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16D-031/02 F15B-011/00
출원번호	US-0341426 (1994-11-17)
발명자 / 주소	Buschur Jeffrey J. (Bellbrook OH)
출원인 / 주소	ITT Automotive Electrical Systems, Inc. (Auburn Hills MI 02)
인용정보	피인용 횟수 : 49 인용 특허 : 0

초록 ▼

A hydraulic motor system minimizes wasted power by using a plurality of fixed displacement hydraulic motors to drive a drive shaft in a cooperative manner. The motors are selectively switched into operation in response to variations in fluid pressure. As a consequence the hydraulic fluid acts upon a motor system having an effective combined displacement for producing a predetermined shaft rotation rate at the volumetric flow rate which caused the pressure condition. The invention is disclosed as having particular utility for driving a cooling fan for an automotive engine.

대표청구항 ▼

In an automotive vehicle powered by a variable speed engine, said automotive vehicle being equipped with an hydraulic system having a flow of hydraulic fluid and a fixed displacement pump driven by said variable speed engine, said automotive vehicle also being equipped with a cooling fan mounted on a shaft for cooling said engine; improved driving apparatus for said cooling fan comprising: (a) an idle motor in fluid connection with said fixed displacement pump during idle operation and during grade operation, and in mechanical driving connection to said shaft during idle operation and during grade operation, (b) a grade motor, (c) an overriding slip clutch drivingly connecting said grade motor to said shaft during grade operation and disconnecting said grade motor from said shaft during idle operation; and (d) a pressure sensitive actuator having a string connected for yielding to pressure exerted by said hydraulic fluid and for operating said actuator while so yielding, said pressure sensitive actuator placing said grade motor into fluid connection with said fixed displacement pump in automatic response to fluid conditions indicative of grade operation and preventing said grade motor from being in fluid connection with said fixed displacement pump in automatic response to fluid conditions indicative of idle operation, (e) wherein said pressure sensitive actuator is activated to place said grade motor in fluid connection with said fixed displacement pump when said engine speed is greater than idle operation and less than grade operation, and (f) wherein said overriding slip clutch is activated to connect said grade motor to said shaft when said grade motor attains the speed of said shaft during operation of said engine.

이 특허를 인용한 특허 (49)

Schmitz, Geoffrey W., Apparatus, system and method for monitoring fluid flows and/or filter conditions and/or distributing a single fluid.
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Mientus Michael J., Automotive hydraulic engine cooling system with thermostatic control by hydraulic actuation.
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Yoshida Nobumi,JPX ; Endo Hiroshi,JPX, Drive unit of cooling fan.
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Buscher, Jeffrey J.; Gibson, John R.; Hill, John S.; Jiang, Hong; Nickel, David F.; Schutte, Daniel J., Dual displacement motor control.
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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, 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.; Bollinger, Benjamin R., Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas.
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Bollinger, Benjamin R.; McBride, Troy O.; Cameron, Benjamin; Magari, Patrick; Izenson, Michael; Chen, Weibo, Heat exchange with compressed gas in energy-storage systems.
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Buschur, Jeffrey J.; Leemhuis, Richard S.; Shiloff, Donald G., High performance turbo-hydraulic compressor.
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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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Bollinger, Benjamin; Magari, Patrick; McBride, Troy O., High-efficiency liquid heat exchange in compressed-gas energy storage systems.
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Machesney Kerry A. ; Hill John S. ; Mientus Michael J., Hydraulic machine comprising dual gerotors.
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Buschur, Jeffrey J.; Hill, John S.; Mientus, Michael, Hydraulic motor system.
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Buschur, Jeffrey J.; Leemhuis, Richard S.; Shloff, Donald G., Hydraulic turbo accelerator apparatus.
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Buschur Jeffrey J. ; Hill John S., Hydraulically powered fan system for vehicles.
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Buschur Jeffrey J. ; Hill John S., Hydraulically powered fan system for vehicles.
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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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Kim Chul,KRX ; Han Yong-woon,KRX ; Jang Seong-deog,KRX ; Sung Han-jun,KRX, Rotatable inverter.
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Schmitz Geoffrey W., Single-fluid apparatus for supplying vehicle power and lubrication fluid requirements and a system and method for fluid distribution and delivery.
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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 R.; Scott, Michael Neil; Cook, Robert; Magari, Patrick, Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery.
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McBride, Troy O.; Bollinger, Benjamin R.; Bessette, Jon; Bell, Alexander; Kepshire, Dax; La Ven, Arne; Rauwerdink, Adam, Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems.
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McBride, Troy O.; Bollinger, Benjamin R.; Bessette, Jon; Bell, Alexander; Kepshire, Dax; LaVen, Arne; Rauwerdink, Adam, Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems.
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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., 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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McBride, Troy O.; Scott, Michael Neil; Bollinger, Benjamin; Shang, Andrew; Cook, Robert; Doyle, Lee, Systems and methods for reducing dead volume in compressed-gas energy storage systems.
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Smith David P., Variable pump control for hydraulic fan drive.
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