US 12,253,076 B2
Emulsion plunger pump and pump head assembly thereof
Chuliang Wang, Beijing (CN); Ran Li, Beijing (CN); Wenshu Wei, Beijing (CN); Hao Liu, Beijing (CN); Jian Ye, Beijing (CN); Mengyu Wu, Beijing (CN); Rongming Chen, Beijing (CN); and Bo Liu, Beijing (CN)
Assigned to CCTEG BEIJING TIANMA INTELLIGENT CONTROL TECHNOLOGY CO., LTD., Beijing (CN); and BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 18/028,166
Filed by CCTEG BEIJING TIANMA INTELLIGENT CONTROL TECHNOLOGY CO., LTD., Beijing (CN); and BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY CO., LTD., Beijing (CN)
PCT Filed Apr. 12, 2021, PCT No. PCT/CN2021/086361
§ 371(c)(1), (2) Date Mar. 23, 2023,
PCT Pub. No. WO2022/073328, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 202011073265.6 (CN), filed on Oct. 9, 2020.
Prior Publication US 2023/0366394 A1, Nov. 16, 2023
Int. Cl. F04B 9/02 (2006.01); F04B 53/10 (2006.01)
CPC F04B 53/1022 (2013.01) [F04B 9/02 (2013.01); F04B 53/109 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A pump head assembly of an emulsion plunger pump, the pump head assembly comprising:
a pump head body having a hollow chamber;
a liquid suction valve component;
a liquid discharge valve component;
a spacer sleeve component; and
an end cover detachably connected to an end of the pump head body, the end cover being configured to close the hollow chamber,
wherein the liquid suction valve component, the spacer sleeve component and the liquid discharge valve component are sequentially mounted in the hollow chamber,
wherein the liquid suction valve component comprises a liquid suction valve seat, a liquid suction valve core and a first reset spring, the liquid suction valve core being slidably connected to the spacer sleeve component, the first reset spring being disposed between the spacer sleeve component and the liquid suction valve core,
wherein the spacer sleeve component comprises a spacer sleeve body and a sliding sleeve fixedly connected to the spacer sleeve body,
wherein the liquid suction valve core is slidably connected to the sliding sleeve,
wherein an outer wall of the spacer sleeve body comprises an anti-rotation groove,
wherein the pump head body comprises a first connection hole extending in a radial direction, and
wherein the spacer sleeve body is positioned by a positioning member inserted into the anti-rotation groove through the first connection hole.