Title:
SOLENOID VALVE AND FUEL INJECTION VALVE
Document Type and Number:
Japanese Patent JP3725356
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce size and improve operation responsiveness of a movable valve which generates electromagnetic attraction by a magnetic circuit having two air gaps by improving generation efficiency of the electromagnetic attraction while reducing valve operation voltage.
SOLUTION: In this solenoid valve, a magnetic circuit M which generates electromagnetic attraction applied to a movable valve 14, through current carrying to a solenoid coil 4 has air gaps G1, G2. In such a case, a permeance ratio P2/P1 (permeance P2 at air gap G2 is divided by permeance P1 at air gap G1) ranges between 1.5 and 2.1 where P1 is premeance at the air gap G1, and P2 is permeance at the air gap G2.
Inventors:
Masai Ii
Hideki Ito
Koji Kawazoe
Makimura Toshiro
Hideki Ito
Koji Kawazoe
Makimura Toshiro
Application Number:
JP4521799A
Publication Date:
December 07, 2005
Filing Date:
February 23, 1999
Export Citation:
Assignee:
Aisan Industry Co., Ltd.
International Classes:
F02M51/06; F02M51/08; F16K31/06; (IPC1-7): F02M51/06; F02M51/08; F16K31/06
Domestic Patent References:
| JP10196486A | ||||
| JP57099265A |
Attorney, Agent or Firm:
Hidehiko Okada
Hideo Kodama
Toshiyuki Ikeda
Tetsuya Hasegawa
Tetsuyuki Iwata
Atsuko Nakamura
Hiroaki Murase
Hideo Kodama
Toshiyuki Ikeda
Tetsuya Hasegawa
Tetsuyuki Iwata
Atsuko Nakamura
Hiroaki Murase