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1. 发明授权

US4951709A Hydraulic system and manifold assembly 失效
标题翻译：液压系统和歧管组件
公开(公告)号：US4951709A
公开(公告)日：1990-08-28
申请号：US265880
申请日：1988-11-01
申请人： Steven C. Kirkham
发明人： Steven C. Kirkham
IPC分类号： F15B13/00 , F15B13/08
CPC分类号： F15B13/081 , F15B13/0814 , F15B13/0835 , F15B13/0892 , F15B13/0896 , Y10T137/5109 , Y10T137/85938
摘要： The invention provides an improved manifold assembly and hydraulic system for use in connecting hydraulic lines according to a predetermined circuit design. The invention is especially useful in a pilot control circuit for operating heavy equipment that is multifunctional or has the ability to operate multiple attachments. The manifold assembly comprises a baseplate having a plurality of inlet and outlet ports that are connected to various components in the hydraulic circuit. Connecting elements are then used to connect the designated inlet and outlet ports. In a preferred embodiment, the connecting elements include one or more channel plates attached to the baseplate that have segregated flow channels or passageways and interconnect the designated inlet and outlet ports. In order to convert the system from operation of one type of attachment to another, it is only necessary to exchange one set of designated channel plates for another. This provides ease and simplicity in the conversion from the use of one attachement to another.
摘要翻译：本发明提供一种改进的歧管组件和液压系统，用于根据预定的电路设计连接液压管线。本发明在用于操作多功能或具有操作多个附件的能力的重型设备的先导控制电路中是特别有用的。歧管组件包括具有连接到液压回路中的各种部件的多个入口和出口的基板。然后使用连接元件连接指定的入口和出口。在优选实施例中，连接元件包括连接到基板的一个或多个通道板，其具有隔离的流动通道或通道并且互连指定的入口和出口。为了将系统从一种类型的附件的操作转换为另一种，仅需要将一组指定的通道板交换另一组。这提供了从使用一个附件到另一个附件的转换的简单性和简单性。

2. 发明授权

US4398869A Control means for variable displacement pump 失效
标题翻译：可变排量泵的控制装置
公开(公告)号：US4398869A
公开(公告)日：1983-08-16
申请号：US439703
申请日：1982-11-08
申请人： Steven C. Kirkham , Ronald K. Schantz
发明人： Steven C. Kirkham , Ronald K. Schantz
IPC分类号： F04B49/00
CPC分类号： F04B49/002
摘要： A control means for a variable displacement pump (12) driven by an engine (10) and having a servo-cylinder (78) determining the displacement of the variable pump (12). A charge pump (14) is driven by the engine (10) and supplies charge pressure to the variable pump (12) through an orifice (40). Pilot conduits (42,44) on each side of the orifice (40) sense the pressure drop due to flow and relay the resulting signals to each end of a metering spool (52) in a speed control valve (46), which is arranged to control the pressure in the servo-cylinder (78). A spring (90) biases the servo-cylinder (78) toward an extreme position for the variable pump (12) and opposes the pressure directed to the servo-cylinder (78) by the speed valve (46) in order to provide a smooth transition between the extreme positions for pump displacement.
摘要翻译：一种用于由发动机（10）驱动并具有确定可变泵（12）的位移的伺服缸（78）的可变排量泵（12）的控制装置。电动泵（14）由发动机（10）驱动，并通过孔口（40）将增压压力提供给可变泵（12）。在孔口40的每一侧上的先导管道（42,44）感测由于流动造成的压降，并且将所得到的信号传递到速度控制阀（46）中的计量阀芯（52）的每一端，所述速度控制阀以控制伺服缸（78）中的压力。弹簧（90）将伺服缸（78）朝向可变泵（12）的极限位置偏压，并与由速度阀（46）引导到伺服缸（78）的压力相反，以提供平稳在泵位移的极限位置之间的过渡。

3. 发明授权

US4359130A Hydraulic system for responsive splitting of engine power 失效
标题翻译：用于发动机动力分离的液压系统
公开(公告)号：US4359130A
公开(公告)日：1982-11-16
申请号：US153119
申请日：1980-05-27
申请人： Steven C. Kirkham
发明人： Steven C. Kirkham
IPC分类号： F04B49/00 , B60K25/00 , B60K17/10
CPC分类号： B60K25/00
摘要： A hydraulic system for a vehicle having an engine (10) governed to run within a predetermined speed range; the engine (10) arranged to drive a motive power train (11), a charge pump (14), a variable displacement pump (12) and a fixed displacement pump (15). The variable and fixed pumps (12 and 15) are arranged to supply hydraulic fluid pressure to a work circuit (26). A flow signal is created by passing the output from the charge pump (14) through an orifice (40), which signal is routed to a speed valve (46) which directs fluid to a control ram (78) to reduce the displacement of the pump (15) during a predetermined intermediate portion of said speed range.
摘要翻译：一种用于车辆的液压系统，具有控制在预定速度范围内运行的发动机（10）; 布置成驱动动力传动系（11）的引擎（10），电荷泵（14），可变排量泵（12）和固定排量泵（15）。可变和固定泵（12和15）被布置成向工作回路（26）供应液压流体压力。通过将来自电荷泵（14）的输出通过孔口（40）产生流动信号，该信号被路由到速度阀（46），该速度阀将流体引导到控制柱塞（78）以减少泵（15）在所述速度范围的预定中间部分期间。

4. 发明授权

US4779416A Control system for front end loader boom and bucket operating systems 失效
标题翻译：前端装载机臂和铲斗操作系统的控制系统
公开(公告)号：US4779416A
公开(公告)日：1988-10-25
申请号：US72770
申请日：1987-07-13
申请人： Probir K. Chatterjea , Steven C. Kirkham
发明人： Probir K. Chatterjea , Steven C. Kirkham
IPC分类号： E02F3/43 , E02F9/22 , F15B11/17 , F16D31/02 , F15B13/02
CPC分类号： F15B11/17 , F15B2211/20576 , F15B2211/329 , F15B2211/40515 , F15B2211/41563 , F15B2211/428 , F15B2211/45 , F15B2211/6355 , F15B2211/71
摘要： A control system for the boom and bucket operation system on a front end loader that includes an unloader valve responsive to pilot valve pressure to bypass hydraulic fluid pumped by an auxiliary pump to the reservoir while maintaining the primary pump supply to a loader valve which supplies pressure to the boom and bucket cylinders in response to the operation of pilot valves. The unloader valve bypasses the auxiliary pump flow when the pressure is below a predetermined value and when the pressure is above a second higher predetermined value.
摘要翻译：一种用于前端装载机上的起重臂和铲斗操作系统的控制系统，其包括响应于先导阀压力的卸载阀，以将由辅助泵泵送的液压流体旁路到储存器，同时将初级泵供应保持到提供压力的装载阀响应于先导阀的操作到起重臂和铲斗缸。当压力低于预定值时，当压力高于第二较高预定值时，卸载器阀旁路辅助泵流。

5. 发明授权

US4505339A Hydraulic control for a dozer blade 失效
标题翻译：推土铲的液压控制
公开(公告)号：US4505339A
公开(公告)日：1985-03-19
申请号：US388569
申请日：1982-06-14
申请人： Lee F. Kramer , Ronald K. Schantz , Steven C. Kirkham , Charles M. Tschanz
发明人： Lee F. Kramer , Ronald K. Schantz , Steven C. Kirkham , Charles M. Tschanz
IPC分类号： E02F3/84 , E02F3/76 , F16B11/00
CPC分类号： E02F3/844
摘要： A hydraulic circuit for pitch and tilt control of a dozer blade attached to push arms on a vehicle with a pitch ram connected between one push arm and the blade and a dual actuator consisting of a second pitch ram and a tilt ram connected at their head ends. A pitch valve directs hydraulic fluid to and from the pitch rams with a diverter/combiner valve interposed therebetween to assure a flow of fluid either to said rams or from said rams at equal rates. Pilot-operated check valves hydraulically lock the pitch rams until opened by pressure directed from said pitch valve. Tilt and lift valves directs fluid pressure to and from the tilt ram and a lift ram respectively with regeneration capability for both tilt and lift functions.
摘要翻译：一种用于俯仰和倾斜控制的液压回路，其连接到车辆上的推动臂上，所述推土铲具有连接在一个推动臂和叶片之间的桨距推杆，以及由其第二俯仰柱塞和在其头部连接的倾斜柱塞的双重致动器。节流阀将液压流体引导到沥青柱塞，并且其间插入有分流器/组合阀，以确保流体流动到所述的公柱或以相等的速率从所述的柱塞流出。先导式止回阀以液压方式锁定间距柱，直到从所述节流阀引导的压力打开。倾斜和提升阀将流体压力引导到倾斜压头和升降压头，并且具有用于倾斜和提升功能的再生能力。

6. 发明授权

US4382485A Hydraulic logic control for variable displacement pump 失效
标题翻译：变量泵的液压逻辑控制
公开(公告)号：US4382485A
公开(公告)日：1983-05-10
申请号：US153118
申请日：1980-05-27
申请人： Steven C. Kirkham
发明人： Steven C. Kirkham
IPC分类号： B60K17/10 , B60K17/28 , B60W10/06 , B60W10/103 , F04B49/00 , F04B49/08 , F16H61/448 , F16H61/46 , F16H61/465
CPC分类号： F04B49/08 , B60W10/04 , B60W10/103 , F16H61/448 , F16H61/465
摘要： A variable speed engine (10) drives a tractive effort drive train (12) and fixed and variable displacement pumps, (14 and 16) arranged to supply fluid pressure to a hydraulic work system (24). The displacement of the variable pump (16) is determined by a control ram (42) and a conduit (44, 53, 74) interconnects the variable pump output and the control ram (42). An engine speed control valve (60) and a system pressure compensator valve (46) interposed in series in said conduit (44, 53, 74). The two valves (60 and 46) maintain the variable pump (16) at full output except when low engine speed and high system pressure exists simultaneously.
摘要翻译：变速发动机（10）驱动牵引力传动系（12）和被布置成向液压工作系统（24）供应流体压力的固定和可变排量泵（14和16）。可变泵（16）的位移由控制柱塞（42）确定，并且导管（44,43,74）将可变泵输出和控制柱塞（42）相互连接。发动机转速控制阀（60）和系统压力补偿阀（46），其串联插入所述导管（44,43,74）中。两个阀门（60和46）将可变泵（16）保持在全输出状态，除非同时存在低发动机转速和高系统压力。

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