Invention Grant
- Patent Title: Plunger type water pump
- Patent Title (中): 柱塞式水泵
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Application No.: US13381950Application Date: 2010-09-28
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Publication No.: US08696337B2Publication Date: 2014-04-15
- Inventor: Yinshui Liu , Defa Wu , Zhuo Jiang , Xiaofeng He , Bihai Zhu , Zhi-Heng Guo , Xuyao Mao , Jingyue Chen
- Applicant: Yinshui Liu , Defa Wu , Zhuo Jiang , Xiaofeng He , Bihai Zhu , Zhi-Heng Guo , Xuyao Mao , Jingyue Chen
- Applicant Address: CN Wuhan, Hubei Province
- Assignee: Huazhong University of Science and Technology
- Current Assignee: Huazhong University of Science and Technology
- Current Assignee Address: CN Wuhan, Hubei Province
- Agent Cheng-Ju Chiang
- International Application: PCT/CN2010/077400 WO 20100928
- International Announcement: WO2012/037738 WO 20120329
- Main IPC: F04B39/02
- IPC: F04B39/02 ; F04B39/10 ; F04B53/10 ; F04B27/10 ; F04B5/02 ; F04B1/14
Abstract:
A plunger type water pump mainly comprises a cavity body, a rotary main shaft and a plunger flow-distributing unit. The plunger flow-distributing unit comprises a flat valve assembly, a plunger-shoe assembly and a supporting valve assembly. The plunger-shoe assembly divides the cavity body into a high-pressure cavity and a low-pressure cavity independent of each other. The high-pressure cavity is in fluid communication with the flat valve assembly; and the low-pressure cavity is in fluid communication with the supporting valve assembly. The high-pressure water and the low-pressure water are independent of each other. This arrangement ensures a high volumetric efficiency of the water pump under ultra-high-pressure conditions and provides fluid support and lubrication for a friction coupling under high-speed heavy-load conditions to prolong the service life of the water pump.
Public/Granted literature
- US20120201706A1 Plunger Type Water Pump Public/Granted day:2012-08-09
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