专利汇可以提供Control of guide vane for rotary hydraulic machine专利检索,专利查询,专利分析的服务。并且PURPOSE:To prevent an abnormally big surging by a method wherein the opening and closing speed of the guide vane of the rotary hydraulic machine for a hydraulic power plant having a surge tank is controlled in accordance with the fluctuation of a water level so as to maintain the water level in the surge tank within a predetermined range. CONSTITUTION:The surge tank is provided in at least one of the upstream side or the downstream side of a water way for the hydraulic power plant and when the water level in the tank has lowered to a value below a predetermined value, for example, a solenoid valve 18 is energized by a control circuit to operate a hydraulic cylinder 17. Then, a rod 15 is descended to a predetermined position. When a piston 7 is elevated to drive a servomotor 1 in order to open the guide vane, the stopper 13 of a rod 8 is abutted against the rod 15 to stop it, the opening degree of a main pressure distributing valve 5 is limited, the amount of pressurized oil flowing into the servomotor 1 from a pipeline 3 is also limited and the opening speed of the guide vane is restricted to a value below an allowable one.,下面是Control of guide vane for rotary hydraulic machine专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种方便使用的电力通信线缆收放装置 | 2020-05-14 | 456 |
应用于变电站地基沉降监测的监测装置 | 2020-05-12 | 189 |
高落差水力发电的一种压力钢管 | 2020-05-12 | 104 |
一种水电厂电力监控系统安全基线 | 2020-05-08 | 946 |
一种敲击开口扳手 | 2020-05-08 | 905 |
一种摄像头控制平台 | 2020-05-11 | 528 |
一种拆除卧式水轮机导叶套筒的专用工具 | 2020-05-14 | 450 |
一种推力瓦拆装装置 | 2020-05-13 | 245 |
一种间隙调整装置及发电机 | 2020-05-15 | 203 |
一种行程测量装置、接力器及水轮机 | 2020-05-15 | 223 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。