会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明专利
    • Hydraulic control device
    • 液压控制装置
    • JP2013160382A
    • 2013-08-19
    • JP2013018345
    • 2013-02-01
    • Robert Bosch Gmbhローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh
    • BOLLERO VINCENZO DOMENICO
    • F15B20/00F15B11/05
    • F15B11/162F15B2211/3054F15B2211/4053F15B2211/6057F15B2211/653F15B2211/7142F15B2211/781F15B2211/8603F15B2211/8755
    • PROBLEM TO BE SOLVED: To provide a hydraulic control device with improved safety for humans.SOLUTION: A hydraulic control device includes a pump 4 having a pump regulator, and adjustable metering orifices 8a, 8b. The first metering orifice is arranged between a supply pipeline 6, extending from the pump, and a first consuming device while the second metering orifice is arranged between the supply pipeline and a second consuming device. A first pressure balance of pressure balances 12a, 12b is placed at the rear of the first metering orifice 8a while the second pressure balance is placed at the rear of the second metering orifice 8b. Each adjusting piston of the pressure balances can be loaded in an opening direction by the downstream side pressure of each metering orifice and in a closing direction by the maximum load pressure of the consuming devices via one of common load transmission pipelines 14, 18. The hydraulic control device is configured to supply a pressure medium to at least two hydraulic consuming devices and can supply pump pressure to the common load transmission pipelines 14, 18 via a safety valve 2.
    • 要解决的问题:提供一种具有改善人体安全性的液压控制装置。解决方案:液压控制装置包括具有泵调节器的泵4和可调整的计量孔8a,8b。 第一计量孔布置在从泵延伸的供应管线6和第一消耗装置之间,而第二计量孔布置在供应管线和第二消耗装置之间。 压力平衡12a,12b的第一压力平衡放置在第一计量孔8a的后部,而第二压力平衡位于第二计量孔8b的后部。 压力平衡的每个调节活塞可以通过每个计量孔的下游侧压力在开启方向上被装载,并且在关闭方向上通过消耗装置的最大负载压力经由一个共同的负载传输管道14,18来加载。液压 控制装置被构造成将压力介质供应到至少两个液压消耗装置,并且可以经由安全阀2将泵压力提供给公共负载传输管线14,18。
    • 8. 发明专利
    • Hydraulic drive system for construction machine provided with exhaust gas purification device
    • 具有排气净化装置的建筑机械液压驱动系统
    • JP2012097890A
    • 2012-05-24
    • JP2010248797
    • 2010-11-05
    • Hitachi Constr Mach Co Ltd日立建機株式会社
    • TAKAHASHI KIWAMUTSURIGA YASUTAKAYOSHIDA HAJIMETAKEBAYASHI KEIFUMIMORI KAZUSHIGE
    • F15B11/00E02F9/00E02F9/22F01N3/023F02D29/00F02D29/04
    • F01N9/002E02F9/2235E02F9/2285E02F9/2296F01N3/023F01N2590/08F02D29/04F04B49/002F15B11/165F15B2211/20523F15B2211/20553F15B2211/6057F15B2211/6058F15B2211/633F15B2211/653F15B2211/665F15B2211/6652F15B2211/6658
    • PROBLEM TO BE SOLVED: To provide a hydraulic drive system adapted to perform load sensing control, configured in such a manner that, when actuator operation is not performed, particulate matter accumulated on the filter of an exhaust gas purification device is efficiently burnt and removed by pump output increasing control, that, even if the actuator operation and the pump output increasing control are performed at the same time, they do not affect each other, and that the hydraulic drive system is simple and low cost.SOLUTION: The hydraulic drive system includes: a solenoid switching valve 46 switching between tank pressure and the discharge pressure of a pilot pump 30 upstream of an engine rotation speed detection valve 13 and outputting the selected pressure to a shuttle valve 45; and a solenoid switching valve 48 disposed in an oil path 12b for leading the output pressure of a differential pressure reducing valve 11 to an LS control valve 17b and switching between the validity and invalidity of the load sensing control. When the exhaust gas purification device 42 needs regeneration, a controller 49 changes over the solenoid switching valve 46 and the solenoid switching valve 48 so that the former outputs the discharge pressure of the pilot pump 30 as pseudo-negative pressure and the latter invalidates the load sensing control.
    • 要解决的问题:提供一种适于执行负载感测控制的液压驱动系统,其被配置成使得当不执行致动器操作时,积聚在排气净化装置的过滤器上的颗粒物质被有效地燃烧 并通过泵输出增加控制去除,即使执行器操作和泵输出增加控制同时进行,它们也不会相互影响,液压驱动系统简单,成本低。 液压驱动系统包括:电磁切换阀46,其在油箱压力与发动机转速检测阀13上游的先导泵30的排出压力之间切换,并将选择的压力输出到往复阀45; 以及设置在油路12b中用于将减压阀11的输出压力引导到LS控制阀17b并在负载感测控制的有效性和无效之间切换的电磁换向阀48。 当废气净化装置42需要再生时,控制器49转过电磁切换阀46和电磁换向阀48,使得前者将先导泵30的排出压力输出为假负压,而后者使负载无效 感应控制。 版权所有(C)2012,JPO&INPIT