Emulsion plunger pump and pump head assembly thereof

US12253076B2 · kind B2 · utility

Assignees

• CCTEG BEIJING TIANMA INTELLIGENT CONTROL TECHNOLOGY CO., LTD. · CN
• BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY CO., LTD. · CN

Inventors

• Chuliang Wang · Beijing, CN
• Ran Li · Beijing, CN
• Wenshu Wei · Beijing, CN
• Hao Liu · Sunnyvale, US
• Jian Ye · Beijing, CN
• Mengyu Wu · Beijing, CN
• Rongming Chen · Beijing, CN
• Bo Liu · Sammamish, US

Key dates

• Filing date: Apr 12, 2021
• Grant date: Mar 18, 2025
• Expiry date: Jul 10, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B53/22
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An emulsion plunger pump and a pump head assembly (100) thereof. The pump head assembly (100) includes a pump head body (101), a liquid suction valve assembly (102), a liquid discharge valve assembly (103), a spacer sleeve assembly (104), and an end cover (105); the pump head body (101) has a hollow chamber (101a); the liquid suction valve assembly (102), the spacer sleeve assembly (104), and the liquid discharge valve assembly (103) are sequentially installed in the hollow chamber (101a); the liquid suction valve assembly (102) includes a liquid suction valve seat (1021), a liquid suction valve core (1022), and a first reset spring (1023); the liquid suction valve core (1022) is slidably connected to the spacer sleeve assembly (104); the first reset spring (1023) is located between the spacer sleeve assembly (104) and the liquid suction valve core (1022); and the end cover (105) is detachably connected to one end of the pump head body (101). The pump head assembly (100) is reasonable in internal structure and long in service life.