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Patent Searching and Data


Title:
FUEL OIL PUMP CONTROL CIRCUIT AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/048252
Kind Code:
A1
Abstract:
A fuel oil pump control circuit and method. The circuit comprises a locomotive microcomputer control circuit (101), a fuel oil pressure sensor (102), a switch control circuit (103), and a diesel engine electric injection control circuit (104), wherein the locomotive microcomputer control circuit (101) is connected to the fuel oil pressure sensor (102) and the switch control circuit (103) separately; the switch control circuit (103) is also connected to a first fuel oil pump (105) and a second fuel oil pump (106); the locomotive microcomputer control circuit (101) is used for controlling ON of a first switch control circuit (1031) or ON of a second switch control circuit (1032) according to fuel oil pressure data obtained by the fuel oil pressure sensor (102); the diesel engine electric injection control circuit (104) is used for maintaining the ON of the first switch control circuit (1031) or the ON of the second switch control circuit (1032) after a diesel engine is started.

Inventors:
WEN JIBIN (CN)
LU YULING (CN)
SONG XINLIANG (CN)
WANG JIAN (CN)
LAI HAOZHE (CN)
FAN JIAKE (CN)
Application Number:
PCT/CN2019/097228
Publication Date:
March 12, 2020
Filing Date:
July 23, 2019
Export Citation:
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Assignee:
CRRC DALIAN CO LTD (CN)
International Classes:
F02D41/30; F02C9/30; G05B11/00; G05B19/04
Foreign References:
CN109372646A2019-02-22
CN207352386U2018-05-11
CN200976100Y2007-11-14
CN202854538U2013-04-03
CN103821617A2014-05-28
US20100026221A12010-02-04
Attorney, Agent or Firm:
LIAN & LIEN IP ATTORNEYS (CN)
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