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41. 发明申请

WO2013142541A2 HYDRAULIC ACCUMULATOR PRE-CHARGE PRESSURE DETECTION 审中-公开
标题翻译：液压蓄能器预充气压力检测
公开(公告)号：WO2013142541A2
公开(公告)日：2013-09-26
申请号：PCT/US2013/033040
申请日：2013-03-20
申请人： CATERPILLAR INC.
发明人： CHEN, Dayao , MA, Pengfei , SHANG, Tonglin , HILLMAN, Bryan, J
IPC分类号： F15B1/10 , F15B1/04
CPC分类号： F15B1/08 , F15B19/005 , F15B2201/31 , F15B2201/505 , F15B2201/51
摘要： A system (100) including a hydraulic accumulator (102), a pressure sensor (104), a fluid source (106) and a data processor (108) to detect a pre- charge pressure is provided. The hydraulic accumulator (102) includes first and second chambers (302, 304) and a separator (306) therebetween. The hydraulic accumulator (102) has an associated pre-charge pressure. The pressure sensor (104) coupled to the first chamber (302). The data processor (108) is configured to receive pressure readings from the pressure sensor (104). The data processor (108) is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre- charge pressure is determined based on the transition pressure.
摘要翻译：提供一种包括液压蓄能器（102），压力传感器（104），流体源（106）和数据处理器（108）以检测预充气压力的系统（100）。液压蓄能器（102）包括第一和第二腔室（302,304）和它们之间的分离器（306）。液压蓄能器（102）具有相关联的预充压力。耦合到第一室（302）的压力传感器（104）。数据处理器（108）被配置为从压力传感器（104）接收压力读数。数据处理器（108）被配置为确定第一和第二压力变化率以及第一和第二速率之间的过渡压力。基于过渡压力确定近似预充气压力。

42. 发明申请

WO02008612A1 METHOD FOR MEASURING THE GAS PRESSURE IN GAS SUSPENSION OR GAS STORAGE SPHERES 审中-公开
标题翻译：法测量气体压力或气弹簧储气库SPHERES
公开(公告)号：WO02008612A1
公开(公告)日：2002-01-31
申请号：PCT/DE2001/002664
申请日：2001-07-20
IPC分类号： F15B1/08 , F16F9/32
CPC分类号： F16F9/3264 , F15B1/08 , F15B2201/205 , F15B2201/3152 , F15B2201/50 , F15B2201/505
摘要： The invention relates to a method for measuring the gas pressure in gas suspension or gas storage spheres (1), in particular, when in the assembled state in a motor vehicle and a device for application of the method. According to the invention, the checking of gas suspension or gas storage spheres my be simplified, whereby, for determination of the gas pressure, at least one temperature measurement of the shell of the sphere is taken, the actual value determined is compared with a set value thereof and the resulting difference is displayed. By means of the temperature measurement taken of the shell of the sphere, with reference to the stored measured data for the various operating states of the gas suspension or gas storage spheres (1), deviations from the set values may be determined in a simple and reproducible manner. The particular advantage of the invention is that the measurement may occur in the constructed vehicle and only the hydraulic pressure in the vehicle need be altered.
摘要翻译：本发明涉及一种用于在机动车辆的安装状态下测量所述气体弹簧或保持气 - 球（1）中的气体压力，特别的方法，以及用于实施该方法的装置。为了测试气体弹簧或根据它建议，所述球壳中的至少一个温度测量用于确定气体压力所确定的实际值与它的目标值进行比较，并显示一个现有的偏差做出本发明保持气 - 球（1）的简化。过参考所进行的球外壳的至气体弹簧或保持气体球的各种操作状态的所存储的测定数据中的温度测量（1）因此能够以简单的和易于理解的方式检测从目标值的偏差。本发明的特别的优点在于，测量花费在内置的车辆状态的地方，并且仅在车辆中的现有液压必须改变。

43. 发明申请

WO1994004898A1 ULTRA-SOUND TESTING DEVICE FOR GAS PRESSURE ACCUMULATORS 审中-公开
标题翻译：超声波检测设备储气
公开(公告)号：WO1994004898A1
公开(公告)日：1994-03-03
申请号：PCT/EP1993001964
申请日：1993-07-23
申请人： HYDAC TECHNOLOGY GMBH , WEBER, Norbert , LEICHNER, Karl-Heinz
发明人： HYDAC TECHNOLOGY GMBH
IPC分类号： G01L11/00
CPC分类号： F15B19/00 , F15B1/08 , F15B2201/205 , F15B2201/312 , F15B2201/41 , F15B2201/415 , F15B2201/505
摘要： An ultra-sound testing device for gas pressure accumulators is used to test a predeterminable set position that can be taken by a movable separating element (20) inside an accumulator (10) that can be filled with gas and connected to a fluid circuit. The separating element (20) has at least one testing body associated with a visible mark (34) which indicates the set position of the separating element (20), and on the basis of which an ultra-sound testing device provided for the respective testing body can be set on the accumulator (10). This testing device allows a plurality of accumulators of the same type to be tested for their predeterminable gas pressure set value, which corresponds to the gas pre-filling pressure, by means of a single hand apparatus. This kind of test is economical and achieves reliable results.

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