Variable pitch fan for heat exchangers专利检索-叶片桨距角风能专利检索查询-专利查询网

Variable pitch fan for heat exchangers

阅读：727发布：2021-08-02

专利汇可以提供Variable pitch fan for heat exchangers专利检索，专利查询，专利分析的服务。并且The fan includes a hub assembly with a plurality of radially extending fan blade holders. A blade is mounted in each blade holder for rotation around its longitudinal axis to vary its pitch. A crank is connected to each blade to rotate the blade relative to the holder. A crank rod extends between each crank so the rotation of one crank will be imparted to all the other cranks. Jack screws located on opposite sides of the hub assembly rotate the crank arms when the pitch of the blades is to be changed and hold the crank arms from further rotation when the blades have the desired pitch angle.，下面是Variable pitch fan for heat exchangers专利的具体信息内容。

权利要求

1. A fan blade assembly for heat exchangers, comprising a hub rotatable about a central axis and having at least four blade holders extending radially therefrom in generally equally spaced apart relation, a motor on the hub, blades having their inner ends supported by the holders for rotation about their longitudinal axes, first and second torque rods having their inner ends connected to the motor for rotation and extending outwardly to a position in which their outer ends are near the inner ends of first and second blades, respectively, first and second jack screws having their opposite ends pivotally connected to said first and second blades and the holders for said first and second blades, respectively, means connecting the outer ends of the first and second torque rods to intermediate portions of the first and second jack screws, respectively, for rotating the first and second blades in their holders in response to rotation of said first and second torque rods, and control rods pivotally connecting the inner end of each blade with the inner end of each of two other blades, the pivotal connection of said control rods to said first and second blades being removed from the pivotal connection thereto of said first and second jack screws, so as to provide means for imparting rotation to said first and second blades independently of the jack screws connected thereto.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
叶片桨距角偏差的检测方法、装置、存储介质及系统	2020-05-08	206
一种用于风力发电机组主动控制叶片净空的方法	2020-05-11	408
应用于风力发电的主控程序仿真测试系统及其方法	2020-05-12	529
规模化新能源参与受端电网调频调压能力评估方法及系统	2020-05-13	375
一种风电机组偏航校准方法及系统	2020-05-15	797
一种叶片桨距角补偿控制方法及风电机组防超速控制方法	2020-05-08	170
一种低风速风电机组数字双胞胎式的疲劳损伤预测方法	2020-05-15	854
风力发电机的恒功率运行控制方法和装置	2020-05-16	69
确定风速值	2020-05-13	129
一种新型的储能式液压型风力发电机组调频控制系统及控制方法	2020-05-14	115

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。

申请试用

分析报告

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。

申请试用

叶片桨距角热门专利

热门分类

Variable pitch fan for heat exchangers

该功能需要专业版企业版VIP权限，您可以：