Title:
PUMP CORE DEVICE, UREA PUMP AND SELECTIVE CATALYTIC REDUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/078491
Kind Code:
A1
Abstract:
A pump core device (1), a urea pump and a selective catalytic reduction system.
The pump core device (1) comprises: an integrated cavity seat (10) comprising a liquid inlet pipeline (10a) and a liquid outlet pipeline (10b); and a delivery pump component (11) arranged in the integrated cavity seat (10) and comprising a delivery liquid inlet end (11a) in communication with the liquid inlet pipeline (10a) and a delivery liquid outlet end (11b) in communication with the liquid outlet pipeline (10b). The pump core device (1) further comprises a backflow component (13) arranged in the integrated cavity seat (10) and comprising a backflow liquid inlet end (13a) and a backflow liquid outlet end (13b). The backflow liquid inlet end (13a) is in communication with the liquid outlet pipeline (10b), and the backflow liquid outlet end (13b) is in communication with the liquid inlet pipeline (10a), such that a solution output from the delivery liquid outlet end (11b) can flow back to the delivery liquid inlet end (11a).
Inventors:
NIU JINGHONG (CN)
FANG WU (CN)
LI BO (CN)
ZHANG BIAO (CN)
HAN FENGTAO (CN)
ZHAI HONGQIANG (CN)
FANG WU (CN)
LI BO (CN)
ZHANG BIAO (CN)
HAN FENGTAO (CN)
ZHAI HONGQIANG (CN)
Application Number:
PCT/CN2023/123766
Publication Date:
April 18, 2024
Filing Date:
October 10, 2023
Export Citation:
Assignee:
XIAN QINTAI AUTOMOTIVE EMISSION TECH CO LTD (CN)
International Classes:
F01N3/20; F01N3/28
Foreign References:
| CN115450734A | 2022-12-09 | |||
| CN107461242A | 2017-12-12 | |||
| CN210440102U | 2020-05-01 | |||
| CN212106013U | 2020-12-08 | |||
| DE102006051120A1 | 2008-04-30 |
Attorney, Agent or Firm:
WINGS IP LAW GROUP (CN)
Download PDF: