金融界2024年12月28日消息，国家知识产权局信息显示，浙江佳明新能源装备有限公司取得一项名为“一种双阀针电子膨胀阀”的专利，授权公告号 CN 222210856 U，申请日期为2024年2月。
专利摘要显示，本实用新型公开了一种双阀 针电子膨胀阀，包括阀体、阀杆、大阀针组件和小阀针组件，阀体的下端开设有相互连通的第一腔体和第二腔体；大阀针组件的上端开设有与第二腔体连通的第三腔体，下端开设有与第一腔体连通的第四腔体，以及连通第四腔体与第二腔体的调节孔，大阀针组件下端封堵在第一腔体与第二腔体之间；小阀针组件包括小阀针和阀针套，小阀针的下端设有变径调节段，该变径调节段安装在调节孔内，阀针套套设在小阀针的上端、且与阀杆的下端固定；本申请实现了阀门的反向使用，将压力泄 压到阀体顶部，且正向流通时能够保证冷媒流通只能从大小阀针组件处流出，有效保证了产品的内漏问题。
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