COMPOSITE MAGNETIC CIRCUIT DOUBLE-PERMANENT MAGNET ELECTROMAGNET AND COMPOSITE MAGNETIC CIRCUIT DOUBLE-PERMANENT MAGNET HIGH-SPEED SOLENOID VALVE

Title:

COMPOSITE MAGNETIC CIRCUIT DOUBLE-PERMANENT MAGNET ELECTROMAGNET AND COMPOSITE MAGNETIC CIRCUIT DOUBLE-PERMANENT MAGNET HIGH-SPEED SOLENOID VALVE

Document Type and Number:

WIPO Patent Application WO/2016/074109

Kind Code:

A1

Abstract:

Disclosed are a composite magnetic circuit double-permanent magnet electromagnet and a composite magnetic circuit double-permanent magnet high-speed solenoid valve. The solenoid valve comprises a valve rod (1), an armature (2), a snap ring (3), a wide permanent magnet (4), an iron core (5), a coil (6), a narrow permanent magnet (7), a coil bobbin (8), a fixed nut (9), a hydraulic damping assembly (10), an initial air gap adjusting ring (13), a shell (14), a low pressure cavity (15), an armature reset spring (16), a base (18), an armature lift adjusting block (20), a limit ring (21) and an armature lift adjusting block fixed nut (22). This structure can effectively reduce the driving current of the solenoid valve, lowers the power consumption of the solenoid valve and the heating value of the coil, and raises the speed of release of the armature; and meanwhile, this structure can reduce the degree of collision during armature pickup and also oscillation when the valve is turned on, improve the precision of control over oil injection, reduce damages to limiting devices, enhance the economical efficiency of diesels and reduce emissions.

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Inventors:

FAN LIYUN (CN)
LIU PENG (CN)
MA XIUZHEN (CN)
BAI YUN (CN)
SONG ENZHE (CN)
LI WENHUI (CN)
FEI HONGZI (CN)
DONG QUAN (CN)
ZHAO JIANHUI (CN)

Application Number:

PCT/CN2014/001004

Publication Date:

May 19, 2016

Filing Date:

November 13, 2014

Export Citation:

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Assignee:

UNIV HARBIN ENG (CN)
FAN LIYUN (CN)

International Classes:

H01F7/08; F16K31/06

Foreign References:

CN102306707A	2012-01-04
CN103795298A	2014-05-14
CN201982718U	2011-09-21
CN102779611A	2012-11-14
CN101984496A	2011-03-09
CN104019266A	2014-09-03
JP2002213634A	2002-07-31
EP0405191A1	1991-01-02

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