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41. 发明授权

US5425305A Hydraulic cylinder piston with center flow bypass valve 失效
标题翻译：液压缸活塞带中心流量旁通阀
公开(公告)号：US5425305A
公开(公告)日：1995-06-20
申请号：US202285
申请日：1994-02-25
申请人： Forrest Mauritz
发明人： Forrest Mauritz
IPC分类号： F15B15/20 , F15B15/22 , F01B31/00
CPC分类号： F15B15/204 , F15B15/225
摘要： A relief valve for a hydraulic piston consists of a tubular mid-section with closed ends and circular stops at each end. The tubular center section has cross ports at each end that run perpendicularly to the axis of the valve. The cross parts are situated as close to the end stops as possible. The cross ports intersect the hollow center of the spool and allow hydraulic oil to flow through the piston via the passageway in the center of the valve when the valve is in the open position.
摘要翻译：用于液压活塞的安全阀由具有封闭端的管状中间部分和每端的圆形止动件组成。管状中心部分在每个端部具有垂直于阀的轴线延伸的交叉端口。交叉部分尽可能靠近终点站。十字口与阀芯的中空中心相交，当阀处于打开位置时，允许液压油通过阀中心的通道流过活塞。

42. 发明授权

US3998132A Jacks 失效
标题翻译：插座
公开(公告)号：US3998132A
公开(公告)日：1976-12-21
申请号：US622041
申请日：1975-10-14
申请人： Herve Pierre Rasigade
发明人： Herve Pierre Rasigade
IPC分类号： B66F3/32 , F15B15/22
CPC分类号： F15B15/225
摘要： The piston of a fluid ram is provided with an end of stroke braking means comprisng a pusher adapted to contact the end wall of the ram cylinder as the piston approaches the end wall to restrict the flow of fluid from the outlet chamber of the ram to an outlet part. As the ram moves nearer the end the pusher opens a valve in the piston to connect the inlet chamber of the ram to the outlet part.
摘要翻译：流体冲头的活塞设置有行程末端制动装置的端部，其包括当活塞接近端壁时适于接触压头缸的端壁的推动器，以限制流体从冲头的出口室流到出口部分。当柱塞移动得更接近末端时，推动器打开活塞中的阀，以将冲头的入口室连接到出口部分。

43. 发明授权

US3656406A Control apparatus for double-acting hydraulic cylinder and piston assembly 失效
标题翻译：双作用液压缸和活塞组件的控制装置
公开(公告)号：US3656406A
公开(公告)日：1972-04-18
申请号：US3656406D
申请日：1971-02-01
申请人： MCDOWELL WELLMAN ENG CO
发明人： MERCER JAMES R
IPC分类号： F15B15/22
CPC分类号： F15B15/225
摘要： A safety vent valve or poppet valve assembly for a double-acting hydraulic cylinder, having duplex, opposed coaxial valve poppets closing a valve bore through the piston, and having a means to open the valve bore when the piston has moved beyond its working limits to provide a channel to vent fluid under predetermined excessive pressure. The venting of fluid under pressure when the piston has moved beyond its normal working stroke substantially reduces the force exerted by the piston upon the restraining machine member.
摘要翻译：一种用于双作用液压缸的安全排气阀或提升阀组件，其具有通过活塞封闭阀孔的双面相对的同轴阀孔，并且当活塞已经超出其工作极限时具有打开阀孔的装置提供通道以在预定的过压下排出流体。当活塞移动超过其正常工作行程时，在压力下排出的流体基本上减小了由活塞施加到限制机构构件上的力。

44. 发明授权

US2233521A Double-acting check valve device 失效
标题翻译：双作用止回阀装置
公开(公告)号：US2233521A
公开(公告)日：1941-03-04
申请号：US14833937
申请日：1937-06-15
申请人： HYDRAULIC PRESS CORP INC
发明人： WALTER ERNST , GEIGER GEORGE M
IPC分类号： F15B15/22
CPC分类号： F15B15/225

45. 发明授权

US1942543A Pneumatic engine 失效
标题翻译：气动发动机
公开(公告)号：US1942543A
公开(公告)日：1934-01-09
申请号：US64024132
申请日：1932-10-29
申请人： NAT PNEUMATIC CO
发明人： FORMAN PARIS R
IPC分类号： F01B29/02 , F15B15/22
CPC分类号： F15B15/225 , F01B29/02

46. 发明授权

US09309946B1 Cylinder with shock absorbing function 有权
标题翻译：气缸具有减震功能
公开(公告)号：US09309946B1
公开(公告)日：2016-04-12
申请号：US14411958
申请日：2014-09-26
申请人： Komatsu Ltd.
发明人： Hisatoshi Odaka , Atsushi Satou , Yoshio Hoshino
IPC分类号： F16F9/34 , F16F9/348 , F16F9/32
CPC分类号： F16F9/3482 , F15B15/225 , F15B15/2815 , F15B15/2861 , F15B19/002 , F15B19/005 , F16F9/3292
摘要： A cylinder with a shock absorbing function which can detect a position of a piston rod reciprocating in a cylinder tube and has a function of absorbing shock produced by the piston rod at its stroke end includes: a pair of piston valve sheets provided in a piston unit; a piston valve configured to reciprocate within a range between the piston valve sheets; a slider made of a nonmagnetic material slidably fitted onto the piston rod; a valve piston provided in the piston unit; a magnet holder ring attached to the piston rod so as to be positioned between the piston unit and the slider; and a magnetism detector provided on an outer periphery of the cylinder tube and configured to detect a position of the piston rod by detecting magnetism generated by the magnet.
摘要翻译：一种具有减震功能的气缸，其能够检测在气缸筒中往复运动的活塞杆的位置，并且具有吸收活塞杆在其行程端产生的冲击的功能，包括：一对活塞阀片，设置在活塞单元 ; 活塞阀构造成在活塞阀片之间的范围内往复运动; 由可滑动地装配到活塞杆上的非磁性材料制成的滑块; 设置在所述活塞单元中的阀活塞; 附接到所述活塞杆的磁体保持环，以定位在所述活塞单元和所述滑块之间; 以及磁检测器，其设置在所述气缸筒的外周上，并且被配置为通过检测由所述磁体产生的磁性来检测所述活塞杆的位置。

47. 发明授权

US08528459B2 Cushioning system for pneumatic cylinder of differential engine 有权
标题翻译：差速发动机气缸缓冲系统
公开(公告)号：US08528459B2
公开(公告)日：2013-09-10
申请号：US12532491
申请日：2008-04-10
申请人： Gennady Plavnik
发明人： Gennady Plavnik
IPC分类号： E05F3/04
CPC分类号： F15B15/225 , E05F3/102 , E05F15/53 , E05Y2900/132 , F15B15/065 , Y10T16/56
摘要： A cushioning system for a pneumatic cylinder powered differential engine door opening and closing device for use in passenger transportation vehicles wherein the cushioning initiation point can be adjusted. This cushioning initiation point is adjusted through the use of a linearly adjustable slider member within the large cylinder. The slider is linearly adjustable through the use of an adjustment screw located outside of the pneumatic cylinder and allows one to adjust the time and the mode of the opening/closing of power doors, without disassembly of the cylinder, and significantly improve the safety of the passenger.
摘要翻译：一种用于乘客运输车辆中的用于气缸动力的差速发动机门开闭装置的缓冲系统，其中可以调节缓冲起始点。该缓冲起始点通过在大气缸内使用线性可调的滑块构件进行调节。滑块通过使用位于气缸外部的调节螺钉可线性调节，并且允许调节动力门的打开/关闭的时间和模式，而不会拆卸气缸，并且显着提高了气缸的安全性乘客。

48. 发明授权

US07718916B2 Low impact spot welding cylinder using dual pistons 有权
标题翻译：低冲击点焊筒采用双活塞
公开(公告)号：US07718916B2
公开(公告)日：2010-05-18
申请号：US11297915
申请日：2005-12-09
申请人： Peter Tenzer
发明人： Peter Tenzer
IPC分类号： B23K9/23
CPC分类号： B23K11/314 , B23K11/315 , F15B11/036 , F15B11/0365 , F15B11/121 , F15B15/1409 , F15B15/22 , F15B15/225 , F15B2211/50563 , F15B2211/5154 , F15B2211/7055 , F15B2211/76
摘要： A weld cylinder having a dual piston arrangement is provided. The cylinder has a movable retract piston assembly with the piston arranged within the retract piston assembly. The piston supports a rod that is movable between home, intermediate, work, and advanced work positions. The rod moves rapidly from the home position to the intermediate position however, the rod moves more slowly from the intermediate position to the work position to reduce the impact force. A cushion chamber slowly exhausts through a hole in the cushion valve while an isolator is in an open position. Once the cushion valve opens in response to a weld-forward pressure on the cushion valve, the cushion chamber exhausts rapidly so that weld force increases rapidly to minimize increases in cycle time.
摘要翻译：提供具有双活塞装置的焊接圆筒。气缸具有可移动的缩回活塞组件，活塞设置在缩回活塞组件内。活塞支撑可在家庭，中间，工作和高级工作位置之间移动的杆。杆从原始位置快速移动到中间位置，但是杆从中间位置更慢地移动到工作位置以减小冲击力。当隔离器处于打开位置时，缓冲室缓慢地排出缓冲阀中的孔。一旦缓冲阀响应于缓冲阀上的焊接前进压力打开，缓冲室迅速排出，使得焊接力快速增加，以最小化循环时间的增加。

49. 发明申请

US20090078110A1 Pneumatic drive system 审中-公开
标题翻译：气动驱动系统
公开(公告)号：US20090078110A1
公开(公告)日：2009-03-26
申请号：US11918817
申请日：2007-01-18
申请人： Dieter Waldmann , Jan-Peter Bender , Jose Arana
发明人： Dieter Waldmann , Jan-Peter Bender , Jose Arana
IPC分类号： F15B13/042
CPC分类号： F15B11/064 , F15B15/202 , F15B15/225 , F15B2211/30525 , F15B2211/327 , F15B2211/40515 , F15B2211/41581 , F15B2211/424 , F15B2211/46 , F15B2211/7053 , F15B2211/88
摘要： It is a question of a pneumatic drive system comprising at least one pneumatic drive (2) possessing a drive housing (4) and an output drive unit (6) able to be shifted in relation to it by the action of compressed air, the output drive unit (6) including an output drive piston (8), which in the drive housing (4) separates two working chambers (12 and 13) from one another, one or both of such chambers being connected with a pneumatic control line (17 and 18), such line having control valve means (22 and 23) able to be switched over between an air economy position and an open position (24) making available a flow cross section which is larger than that of the air economy position, such control valve means being provided with actuating means (32) able to be activated in a manner dependent on the position of the output drive unit (6), such actuating means being able to cause a switching over of the control valve means (22 and 23) into the air economy position, when the output drive unit (6), owing to the compressed air flowing through the control valve means (22 and 23) into the pneumatic drive (2), has reached an end of stroke position or a position just short thereof. The air economy setting has the particular feature that it is in the form of a choking setting (25) opening up a flow cross section which is smaller than in the open position (24).
摘要翻译：这是一个气动驱动系统的问题，该系统包括具有驱动壳体（4）的至少一个气动驱动器（2）和能够通过压缩空气的作用相对于其移动的输出驱动单元（6），输出驱动单元（6），其包括输出驱动活塞（8），所述输出驱动活塞在所述驱动器壳体（4）中彼此分离两个工作室（12和13），这些室中的一个或两个与气动控制管线和18），所述管线具有能够在空气经济位置和打开位置（24）之间切换的控制阀装置（22和23），从而获得大于空气经济位置的流动横截面，控制阀装置设置有能够以取决于输出驱动单元（6）的位置的方式启动的致动装置（32），这种致动装置能够导致控制阀装置（22和23）的切换）进入空气经济状态，当输出驱动单元（6 ），由于流过控制阀装置（22和23）的压缩空气进入气动驱动装置（2），已经到达行程结束或刚好短暂的位置。空气经济性设置具有特别的特征，即其处于窒息设置（25）的形式，其打开比打开位置（24）小的流动横截面。

50. 发明申请

US20070221054A1 Fluid Actuator with Limit Sensors and Fluid Limit Valves 有权
标题翻译：带限位传感器和流体极限阀的液压执行机构
公开(公告)号：US20070221054A1
公开(公告)日：2007-09-27
申请号：US11691482
申请日：2007-03-26
申请人： Timothy David Webster , Joe Zhou
发明人： Timothy David Webster , Joe Zhou
IPC分类号： F15B15/22
CPC分类号： F15B15/1409 , F15B15/149 , F15B15/204 , F15B15/225
摘要： A fluid actuator with fluid limit valves (550, 551) and optional adjustable mechanical limits enables the construction of fluid linkages which are able to completely replace mechanical linkages. In a fluid circuit comprising of two or more fluid actuators, the pistons (102) of the fluid actuators can become uncorrelated when fluid leakage occurs. At the piston (102) extension and retraction limits, fluid limit valves (550, 551) open. The open fluid limit valves (550, 551) allow fluid to bypass pistons (102) and/or allow fluid from an external source to compensate the fluid leakage. The fluid bypassing pistons (102) at their extension or retraction limit and/or externally supplied fluid forces the uncorrelated pistons (102) to reach their extension or retraction limit as well. The fluid actuator with optional adjustable mechanical limits have one or more additional pistons (686, 688), which have an adjustable separation from the main piston (102) or end of cylinder. The fluid actuator with fluid limit valves (550, 551) and optional adjustable mechanical limits enables mechanical linkages to be replaced by fluid circuits composed of the fluid actuators.
摘要翻译：具有流体限制阀（550,551）和可选可调机械限制的流体致动器使得能够完全替代机械连杆的流体连杆的构造。在包括两个或更多个流体致动器的流体回路中，当发生流体泄漏时，流体致动器的活塞（102）可能变得不相关。在活塞（102）延伸和缩回极限时，流体限制阀（550,551）打开。打开的流体限制阀（550,551）允许流体旁路活塞（102）和/或允许来自外部源的流体补偿流体泄漏。在其延伸或缩回极限和/或外部供应的流体旁路活塞（102）迫使不相关的活塞（102）达到其伸出或缩回极限。具有可选可调机械极限的流体致动器具有一个或多个附加的活塞（686,688），其具有与主活塞（102）或气缸端部可调节的间隔。具有流体限制阀（550,551）和可选的可调节机械限制的流体致动器使机械联动能够被由流体致动器组成的流体回路替代。

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