公开(公告)号：US20230017968A1

公开(公告)日：2023-01-19

申请号：US17954436

申请日：2022-09-28

申请人： Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.

发明人： Wenjie DENG ,  Baoguo JIAN ,  Weichen LIU ,  Peng LI ,  Jixin WANG ,  Xiaosong WEI ,  Chen JIANG ,  Xiaobin LI ,  Wenping CUI ,  Anpeng GE

IPC分类号： F04B53/10 ,  E21B43/12

摘要： A valve spring fixing device and a plunger pump are disclosed. The valve spring fixing device includes a spring fixing piece, which includes a first supporting surface and a second supporting surface located at two ends of the spring fixing piece, and an intermediate portion located between the first supporting surface and the second supporting surface; and a spring mounting portion connected with the intermediate portion and configured to mount a valve spring, the first supporting surface and the second supporting surface are configured to contact with a valve box to fix the valve spring fixing device.

公开(公告)号：US20220341415A1

公开(公告)日：2022-10-27

申请号：US17375233

申请日：2021-07-14

申请人： YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.

发明人： Wenjie DENG ,  Baoguo JIAN ,  Weichen LIU ,  Haiping CUI ,  Peng LI ,  Jixin WANG

IPC分类号： F04B53/10 ,  F16K17/04

摘要： A valve spring seat sleeve, a valve assembly, and a plunger pump are disclosed. The valve spring seat sleeve includes a cylindrical hollow structure, a first fluid hole, a first notch and a second notch; the cylindrical hollow structure includes a plunger passage; the first fluid hole passes through a sidewall of the cylindrical hollow structure and communicated with the plunger passage; the first notch and the second notch are located on a side of the cylindrical hollow structure opposite to the first fluid hole; the cylindrical hollow structure includes a first end portion, a second end portion and an intermediate portion, a center of the first fluid hole is located at the intermediate portion, the cylindrical hollow structure further includes a spring mounting portion located between the first notch and the second notch.