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公开(公告)号：US11519405B2
公开(公告)日：2022-12-06
申请号：US17375233
申请日：2021-07-14
发明人： Wenjie Deng , Baoguo Jian , Weichen Liu , Haiping Cui , Peng Li , Jixin Wang
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.
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公开(公告)号：US12085073B2
公开(公告)日：2024-09-10
申请号：US17954436
申请日：2022-09-28
发明人： Wenjie Deng , Baoguo Jian , Weichen Liu , Peng Li , Jixin Wang , Xiaosong Wei , Chen Jiang , Xiaobin Li , Wenping Cui , Anpeng Ge
CPC分类号： F04B53/10 , E21B43/121
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.
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公开(公告)号：US11964350B2
公开(公告)日：2024-04-23
申请号：US17687421
申请日：2022-03-04
发明人： Chen Jiang , Xiaobin Li , Jixin Wang , Baojie Wang , Baoguo Jian , Peng Li
IPC分类号： B23P19/00 , B23P19/02 , B23P19/027 , B25B27/06 , F16K51/00
CPC分类号： B23P19/025 , B23P19/027 , B25B27/062 , F16K51/00
摘要： A puller includes a first claw and a second claw arranged opposite to each other. The first claw includes a first pulling part, a first limiting part and a first connecting part. The first limiting part includes a first body part, a first notch part and a second notch part. The second claw includes a second pulling part, a second limiting part and a second connecting part. The second limiting part includes a second body part, a third notch part and a fourth notch part. A size of the second pulling part is smaller than or equal to a size of the second notch part.
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