公开(公告)号：US20240125262A1

公开(公告)日：2024-04-18

申请号：US18276919

申请日：2022-12-29

申请人： WEICHAI POWER CO., LTD

发明人： Lihua AN ,  Weida LIU ,  Junpu LI ,  Guopeng LI

IPC分类号： F01N3/20

CPC分类号： F01N3/206 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1406

摘要： A urea pump, and a control method and control system for the urea pump are disclosed. The urea pump comprises: a liquid intake pipeline; an instant heating type filtering device, an inlet of the instant heating type filtering device being in communication with a urea tank via the liquid intake pipeline, and the instant heating type filtering device being configured to filter and heat a urea solution flowing in through the inlet pipeline; a pressure build-up pump arranged at the inlet pipeline and configured to drive the urea solution flowing to the instant heating filtering device through the liquid intake pipeline; a liquid output line in communication with a first outlet of the instant heating filtering device and configured to deliver a filtered and heated urea solution to a nozzle; and a liquid return pipeline.