Title:
ELECTROMAGNETIC ACTUATOR AND ELECTROMAGNETIC VALVE
Document Type and Number:
WIPO Patent Application WO/2016/038733
Kind Code:
A1
Abstract:
To obtain an electromagnetic actuator (1), which has a reduced size without increasing the winding number of a winding wire of an electromagnetic coil (14), and which operates at a low current. A first pilot valve (23) of a pilot valve section (2) is operated by means of the electromagnetic actuator (1). A permanent magnet (16) is provided at an end portion of a bobbin (13) on which an electromagnetic coil (14) is wound. A plunger (15) is inserted through a bush (12) and a bobbin (13), and a plunger spring (15c) is provided between a washer (15a) at an end portion of the plunger (15) and the bush (12). A first pilot valve (23) is held at the end portion of the plunger (15). An attractive force of the permanent magnet (16) with respect to the plunger (15) is used as an auxiliary attractive force when a current is carried to the electromagnetic coil (14).
Inventors:
TAKEMOTO YOSHINORI (JP)
CHOI PANKYU (JP)
CHOI PANKYU (JP)
Application Number:
PCT/JP2014/074216
Publication Date:
March 17, 2016
Filing Date:
September 12, 2014
Export Citation:
Assignee:
KANEKO SANGYO CO LTD (JP)
International Classes:
H01F7/16; F16K31/06; F16K31/08
Foreign References:
| JPH09257094A | 1997-09-30 | |||
| JPH01302707A | 1989-12-06 | |||
| JP2011133071A | 2011-07-07 | |||
| JP2003151826A | 2003-05-23 | |||
| JP2013155762A | 2013-08-15 | |||
| JPH11193876A | 1999-07-21 | |||
| JP2003148647A | 2003-05-21 | |||
| JP2001068335A | 2001-03-16 | |||
| JPH0186209U | 1989-06-07 |
Attorney, Agent or Firm:
TAKINO, Hideo et al. (JP)
Hideo Takino (JP)
Hideo Takino (JP)
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