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51. 发明授权

US4454715A Fluid control system 失效
标题翻译：流体控制系统
公开(公告)号：US4454715A
公开(公告)日：1984-06-19
申请号：US278493
申请日：1981-05-22
申请人： Thomas P. Muller , Leon A. Wirt
发明人： Thomas P. Muller , Leon A. Wirt
IPC分类号： F15B11/17 , F15B13/06 , F15B13/09
CPC分类号： F15B11/17 , F15B2211/20576 , F15B2211/30585 , F15B2211/3116 , F15B2211/40584 , F15B2211/455 , F15B2211/473 , F15B2211/50518 , F15B2211/5153 , F15B2211/55 , F15B2211/6313 , F15B2211/6355 , F15B2211/7142
摘要： A fluid control system (10) has a first fluid pump (12) for supplying pressurized fluid in interrupted series to first and second work elements (14,16). The first work element (14) in the series has priority which prevents simultaneous full power operation of the first and second work elements (14,16). A second fluid pump (24) is capable of supplying pressurized fluid to the second work element (16) only upon receiving a signal indicating that pressurized fluid from the first pump (12) is being directed to the first work element (14). The subject fluid control system (10) is especially useful with a tree harvesting machine where it is beneficial to propel the machine and at the same time rotate the upper structure.
摘要翻译： PCT No.PCT / US81 / 00689 Sec。 371日期：1981年5月22日 102（e）日期1981年5月22日PCT提交1981年5月22日PCT公布。出版物WO82 / 04105 日期：1982年11月25日。一种流体控制系统（10）具有用于向第一和第二工作元件（14,16）间歇地供应加压流体的第一流体泵（12）。该系列中的第一工作元件（14）具有优先权，其防止第一和第二工作元件（14,16）的同时全功率操作。仅当接收到指示来自第一泵（12）的加压流体被引导到第一工作元件（14）的信号时，第二流体泵（24）能够将加压流体供应到第二工作元件（16）。主体流体控制系统（10）对于采伐机特别有用，其中有利于推进机器并同时旋转上部结构。

52. 发明授权

US4218886A Hydraulic power packs 失效
标题翻译：液压动力单元
公开(公告)号：US4218886A
公开(公告)日：1980-08-26
申请号：US963788
申请日：1978-11-27
申请人： Gordon D. White
发明人： Gordon D. White
IPC分类号： F04B49/00 , F15B1/26 , F15B21/04 , F15B13/09
CPC分类号： F15B1/26 , F15B21/042 , Y10S60/912 , Y10S60/916
摘要： A hydraulic power pack having a prime mover driving a plurality of hydraulic pumps, a hydraulic circuit including a reservoir connected to an inlet of said pumps, an outlet circuit from said pumps, one or more pressure relief valves in the outlet circuit and a plurality of external connectors on the outlet circuit. The connectors and the relief valves are arranged so that different hydraulic flow and pressure characteristics may be obtained from each connector. Each connector has a flow and a return line, the latter being connected to the reservoir. Valves provided in the hydraulic circuit are responsive to zero flow in the return line of each connector and are adapted to divert the hydraulic flow directly to the reservoir without restriction.
摘要翻译：具有驱动多个液压泵的原动机的液压动力组件，包括连接到所述泵的入口的储存器的液压回路，所述泵的出口回路，出口回路中的一个或多个压力释放阀以及多个出口电路上的外部连接器。连接器和安全阀被布置成使得可以从每个连接器获得不同的液压流量和压力特性。每个连接器具有流动和返回管线，后者连接到储存器。设置在液压回路中的阀响应于每个连接器的返回管线中的零流动，并且适于将液压流直接转移到储存器而不受限制。

53. 发明授权

US4212165A Hydraulic control arrangement 失效
标题翻译：液压控制装置
公开(公告)号：US4212165A
公开(公告)日：1980-07-15
申请号：US14879
申请日：1979-02-26
申请人： Wilhelm Zirps
发明人： Wilhelm Zirps
IPC分类号： F15B11/17 , F15B13/06 , F15B13/09
CPC分类号： F15B11/17 , F15B2211/30505 , F15B2211/3116 , F15B2211/40507 , F15B2211/40515 , F15B2211/4053 , F15B2211/41554 , F15B2211/428 , F15B2211/45 , F15B2211/455 , F15B2211/46 , F15B2211/50536 , F15B2211/5157 , F15B2211/57 , F15B2211/6052 , F15B2211/6057 , F15B2211/65 , F15B2211/7142 , F15B2211/781
摘要： A hydraulic control system for distributing pressure fluid to at least two systems, that is a first system including a first pump supplying pressure fluid through a first conduit to a first consumer and a second system including a second pump for supplying pressure fluid to a second conduit, in which a plurality of multiple position valves are arranged, each movable between a neutral position providing free flow of fluid through the second conduit and at least one working position respectively directing pressure fluid to the additional consumer respectively connected to said plurality of multiple position valves. A regulating valve is located in the first conduit and the second conduit is connected by a cross-conduit to the first conduit at a point upstream of the regulating valve therein. A bypass circuit in which a valve controlled by the fluid pressure in the second conduit is located leads from the second conduit to the inlet of the first pump so that when none of the additional consumers is actuated only a very small fluid stream passes through the second conduit and the multiple position valves to thereby reduce the energy losses.
摘要翻译：一种用于将压力流体分配到至少两个系统的液压控制系统，其是第一系统，其包括将通过第一管道向第一消耗者供应压力流体的第一泵和包括用于将压力流体供应到第二管道的第二泵的第二系统，其中布置有多个多位置阀，每个阀位于提供通过第二管道的流体的自由流动的中间位置和分别将压力流体引导到分别连接到所述多个多位置阀的附加消耗器的至少一个工作位置之间。调节阀位于第一管道中，并且第二管道通过交叉导管连接到第一管道，其中调节阀上游的一个点处。其中由第二导管中的流体压力控制的阀的旁路回路从第二管道引导到第一泵的入口，使得当没有一个额外的消耗器被致动时，只有非常小的流体流通过第二管导管和多位置阀，从而减少能量损失。

54. 发明授权

US4203290A Steering valve for hydrostatic drive 失效
标题翻译：静液压驱动转向阀
公开(公告)号：US4203290A
公开(公告)日：1980-05-20
申请号：US962109
申请日：1978-11-20
申请人： Dieter Burckardt
发明人： Dieter Burckardt
IPC分类号： B62D5/08 , B62D11/18 , F16H61/42 , F16H61/433 , F16H61/456 , F15B13/06 , F15B13/09
CPC分类号： B62D11/183 , B62D5/08 , F16H61/433 , F16H61/456 , Y10T137/2524
摘要： The inflow of fluid from a motor driven pump is divided into two flow streams at a flow rate ratio selectively adjusted through a manually actuated flow divider valve. The adjusted flow rate ratio is maintained constant by a pressure control device within two outflow conduits interconnected by secondary throttling branches to regulate pressure as a function of outflow rates.
摘要翻译：来自电动机驱动泵的流体的流入以通过手动致动的分流阀选择性地调节的流量比被分成两股流。通过压力控制装置将调节后的流量比保持恒定，该压力控制装置在由二级节流分支相互连接的两个流出管道内，作为流出速率的函数来调节压力。

55. 发明授权

US4199943A Fluid transmission circuit 失效
标题翻译：流体传输电路
公开(公告)号：US4199943A
公开(公告)日：1980-04-29
申请号：US863041
申请日：1977-12-21
申请人： William A. Hunt
发明人： William A. Hunt
IPC分类号： F15B11/02 , F16H61/44 , F16H61/444 , F15B13/09
CPC分类号： F16H61/444 , F16H61/44
摘要： A fluid transmission circuit in which three or more pumps, adapted to be driven in unison by a prime mover operating at constant power output, draw fluid from a reservoir and deliver it to a reversible fluid motor via a control valve incorporating forward, neutral and reverse positions, the motor being driven, when the circuit is in use, against a fluctuating resistive force. The fluid outputs of two or more of said pumps are controlled by the output of a diverting valve whose input is connected by a separate pressure-sensing line to the fluid flow through the motor and which is initially biassed into a position in which each of said fluid outputs from said pumps is delivered to the motor. The arrangement is such that, as the demands on the motor increase and the pressure of fluid passing through the motor rises through a succession of predetermined levels, the pressure-sensing line will sense the rises in pressure and, at each successive pressure level, will cause the diverting valve automatically to divert the fluid outputs of successive ones of said pumps back to the reservoir without passing through the motor, the pump outputs being automatically switched into the motor supply line again, one after the other and in the reverse order from that in which they were switched out, by the diverting valve as the demand on the motor subsequently falls.
摘要翻译：一种流体传输电路，其中三个或更多个泵适于由在恒定功率输出下操作的原动机一致驱动，从储存器中抽出流体并将其通过并入正向，中性和反向的控制阀将其输送到可逆流体马达位置，当电路正在使用时，电动机被驱动，抵抗波动的阻力。两个或多个所述泵的流体输出由转向阀的输出控制，转向阀的输入通过单独的压力感测线连接到通过电动机的流体流，并且其最初被偏压到其中每个所述泵来自所述泵的流体输出被输送到马达。这种布置使得当电动机的要求增加并且通过电动机的流体的压力通过一系列预定水平升高时，压力感测线将感测压力的上升，并且在每个连续的压力水平将使得转向阀自动地将连续的所述泵的流体输出转移回到储存器而不通过电动机，泵输出再次自动切换到电动机供给管线，并且以相反的顺序随着电动机的需求随之下降，转向阀被切断。

56. 发明授权

US4164119A Hydraulic pump unloading system 失效
标题翻译：液压泵卸载系统
公开(公告)号：US4164119A
公开(公告)日：1979-08-14
申请号：US890037
申请日：1978-03-27
申请人： Donald J. Parquet
发明人： Donald J. Parquet
IPC分类号： F15B11/17 , F15B13/09
CPC分类号： F15B11/17 , F15B2211/20576 , F15B2211/30505 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/455 , F15B2211/65
摘要： A hydraulic pump unloading system having an engine driving two hydraulic pumps which are connected in parallel to a load-supporting member. An unloading valve is connected in the hydraulic line with one of the two pumps and is shiftable between positions for directing flow to the load and for directing flow to a reservoir, depending upon the pressure and or flow in the hydraulic line. Also, a pressure-compensated flow-control valve is connected in the line with the other pump and, under certain conditions, directs fluid pressure to the unloading valve for setting the unloading valve in either the operative or the unloading position, all depending upon the hydraulic condition at the load-supporting member. Further, either an additional valve or a spring can be effective on the unloading valve for controlling the operative and the unloading position of the unloading valve. The system is arranged so that when the workload approaches an excessive magnitude, one of the pumps is unloaded so that the engine will not stall.
摘要翻译：一种液压泵卸载系统，其具有驱动两个液压泵的发动机，所述两个液压泵并联连接到负载支撑部件。卸载阀在液压管路中与两个泵中的一个连接，并且可以根据液压管路中的压力和/或流量在位置之间移动，以将流量引导到负载并将流量引导到储存器。此外，压力补偿流量控制阀与另一个泵连接在一起，并且在某些条件下将流体压力引导到卸载阀，以将卸载阀设置在操作或卸载位置，这一切都取决于负载支承部件的液压状态。此外，附加阀或弹簧可以在卸载阀上有效，用于控制卸载阀的操作和卸载位置。该系统被布置成使得当工作负载接近过大时，其中一个泵被卸载，使得发动机不会停止。

57. 发明授权

US4145884A Reversible power transmission 失效
标题翻译：可逆电力传输
公开(公告)号：US4145884A
公开(公告)日：1979-03-27
申请号：US818427
申请日：1977-07-25
申请人： Willard D. Childs
发明人： Willard D. Childs
IPC分类号： F04B1/32 , F04B9/10 , F15B13/09 , F04B23/04
CPC分类号： F04B9/10 , F04B1/324
摘要： A reversible power transmission for transmitting input power supplied from either direction. The transmission comprises in combination a plurality of fluid power units for driving or receiving power from a first plurality of fluid actuators. The first plurality of fluid actuators are timed together for cooperating in a mutually complementary manner to substantially linearize a normally pulsating power transfer. The first plurality of actuators may be connected to additional actuators for providing or receiving rotary motion or to plungers operating within stuffing boxes for constant flow pumping or fluid power transfer.
摘要翻译：用于传输从任一方向提供的输入功率的可逆功率传输。变速器组合有多个用于驱动或接收来自第一多个流体致动器的动力的流体动力单元。第一组多个流体致动器被定时在一起，以相互补充的方式进行配合，以使正常脉动的功率传递基本线性化。第一多个致动器可以连接到用于提供或接收旋转运动的附加致动器或者在填充箱内操作以用于恒定流量泵送或流体动力传递的柱塞。

58. 发明授权

US4077211A Steplessly variable hydraulic drive system for vehicle 失效
标题翻译：无级变速液压驱动系统
公开(公告)号：US4077211A
公开(公告)日：1978-03-07
申请号：US743288
申请日：1976-11-18
申请人： Hans Jurgen Fricke
发明人： Hans Jurgen Fricke
IPC分类号： F16H61/44 , F16H61/448 , F15B13/09
CPC分类号： F16H61/448 , F16H61/44
摘要： A hydrostatic drive system for connecting a prime mover and a hydraulically operable load such as a hydraulic motor connected to the vehicular wheel has a constant-displacement pump and a variable-displacement pump both connected to the prime mover. The variable-displacement pump is completely reversible and is of maximum displacement substantially greater than the constant displacement pump. This variable-displacement pump is permanently connected across the hydraulic motor of the load. A clutch connects the constant-displacement pump to the same shaft as the variable-displacement pump. The outputs of the constant-displacement pump may be connected by a valve either in parallel to the outputs of the variable-displacement pump, or may simply connect them together for operation of the load only by the variable-displacement pump.
摘要翻译：用于连接原动机和诸如连接到车轮的液压马达的液压可操作负载的静液压驱动系统具有连接到原动机的恒定排量泵和可变排量泵。可变排量泵是完全可逆的并且具有基本上大于恒定排量泵的最大位移。该可变排量泵永久连接在负载的液压马达上。离合器将恒量泵连接到与可变排量泵相同的轴上。恒量泵的输出可以通过与可变排量泵的输出并联的阀连接，或者可以简单地将它们连接在一起，以便仅通过可变排量泵来操作负载。

59. 发明授权

US4055046A Control system having override for fluid operated work elements 失效
标题翻译：具有用于流体操作的工作元件的超控的控制系统
公开(公告)号：US4055046A
公开(公告)日：1977-10-25
申请号：US753251
申请日：1976-12-22
申请人： Lawrence F. Schexnayder
发明人： Lawrence F. Schexnayder
IPC分类号： E02F9/22 , F04B49/00 , F04B49/08 , F15B11/00 , F15B11/17 , F15B13/06 , F15B13/09
CPC分类号： F04B49/08 , F04B49/002 , F15B11/17 , F15B2211/20553 , F15B2211/3116 , F15B2211/329 , F15B2211/6355 , F15B2211/67 , F15B2211/7142
摘要： A control system has override for fluid operated work elements served by at least two variable displacement pumps each serving a separate circuit. At least two work elements are served by the first circuit and at least one work element is served by the second circuit. The discharge rate of the first pump is controlled by a signal delivered from a summing valve in response to the pressures of the first and second circuits during operation of a preselected one of the work elements of the first circuit and controlled by a modified pilot pressure signal in response to operation of only the other work element of the first circuit.
摘要翻译：控制系统具有用于由至少两个可变排量泵服务的流体操作的工作元件的覆盖，每个可变排量泵分别用于单独的电路。至少两个工作元件由第一电路服务，并且至少一个工作元件由第二电路提供。第一泵的排放速率由在加法阀中响应于第一和第二回路在第一回路的预选一个工作元件的操作期间的压力而被输出的信号控制，并由修改的先导压力信号响应于仅第一电路的另一个工作元件的操作。

60. 发明授权

US4033129A Hydraulic feed control system for rotary drill 失效
标题翻译：旋转钻机液压进给控制系统
公开(公告)号：US4033129A
公开(公告)日：1977-07-05
申请号：US691511
申请日：1976-06-01
申请人： Robert B. Hetzler , Gerald L. Pierson
发明人： Robert B. Hetzler , Gerald L. Pierson
IPC分类号： E21B19/08 , F15B13/09 , F15B15/22
CPC分类号： E21B19/08
摘要： An hydraulic feed control system for feeding or retracting a rotary rock drill relative to the work in a selected one of four modes; namely, standard feed; regeneration feed; standard retract; and rapid retract. The system includes an hydraulic circuit controlling the feeding and retraction of feed cylinders connected to the drill; a pair of hydraulic pressure supply sources; and a pair of manipulative control valves. A primary one of the valves controls flow from one of the sources directly into the circuit; and the other control valve is selectively operable to direct flow from the other source through the primary valve into the circuit so as to combine the flow from both sources for the regeneration feed and rapid retract modes.
摘要翻译：一种液压进给控制系统，用于以四种模式中选择的一种模式相对于工件进给或缩回旋转凿岩机; 即标准饲料; 再生饲料; 标准缩回并迅速缩回。该系统包括一个液压回路，控制连接在钻头上的进料圆筒的进给和退回; 一对液压供应源; 和一对操纵控制阀。主要阀门之一控制从一个源直接流入电路的流量; 并且另一个控制阀可选择性地操作以将来自另一个源的流通过主阀进入回路，以便将来自两个源的流合并用于再生进料和快速回缩模式。

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