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Patent Searching and Data


Title:
ROTARY PISTON-TYPE HIGH-PRESSURE PUMP WITH ENERGY RECOVERY FUNCTION
Document Type and Number:
WIPO Patent Application WO/2021/077350
Kind Code:
A1
Abstract:
Disclosed is a rotary piston-type high-pressure pump with an energy recovery function, the rotary piston-type high-pressure pump comprising a housing (1), a driving mechanism (2), several piston assemblies (3), a cylinder body rotor assembly (4) and a flow distribution mechanism (5), wherein the driving mechanism (2), the piston assemblies (3), the cylinder body rotor assembly (4) and the flow distribution mechanism (5) are mounted inside the housing (1) in sequence; one end of the piston assembly (3) is connected to the driving mechanism (2), and the other end thereof is located inside a cylinder body of the cylinder body rotor assembly (4), so as to divide the cylinder body into a rod energy recovery cavity (A) and a rodless pump cavity (B), and under the action of the driving mechanism (2), the piston assembly (3) moves inside the cylinder body in the cylinder body rotor assembly (4) in a reciprocating manner along with the rotation of the cylinder body rotor assembly (4); and the flow distribution mechanism (5) comprises a flow distribution window (C), and inlet and outlet flow channels (D) arranged on the cylinder body rotor assembly (4) and the housing (1) and used for a pressurizing fluid and an energy recovering fluid, a pump cavity (B) flow channel of each of the cylinder bodies on the cylinder body rotor assembly (4) is alternately in butt joint with low-pressure inlet and high-pressure outlet flow channels which are used for the pressurizing fluid on the housing (1), the energy recovery cavity (A) is in communication with the corresponding energy recovery flow channel, such that the efficiency of high-pressure pressurization and energy recovery is improved.

Inventors:
ZHU RONGHUI (CN)
Application Number:
PCT/CN2019/112930
Publication Date:
April 29, 2021
Filing Date:
October 24, 2019
Export Citation:
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Assignee:
ZHU RONGHUI (CN)
International Classes:
F04B1/24; F04B53/16
Foreign References:
CN105526051A2016-04-27
CN105526051A2016-04-27
CN101539130A2009-09-23
CN106286183A2017-01-04
CN106988977A2017-07-28
CN108238664A2018-07-03
JPH0942147A1997-02-10
JPS5768569A1982-04-26
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD. (CN)
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