Title:
電動弁及び四方切換弁
Document Type and Number:
Japanese Patent JP5715772
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a motor-operated valve simple in structure and low in manufacturing cost capable of effectively preventing the generation of an impact at the channel switching of a four-way selector valve.SOLUTION: The motor-operated valve 1 includes a valve body 2 includes a first valve chamber 2a and a second valve chamber 2b arranged to face each other, a first flow path 2c communicating with the first valve chamber, a second flow path 2d communicating with the second valve chamber, and a third flow path 2e which is interposed between a first valve seat 2f arranged in the first valve chamber and a second valve seat 2g arranged in the second valve chamber to communicate with both valve chambers and a flow-out pipe or a flow-in pipe; a first valve body 10a which is stored in the first valve chamber and whose tip is inserted into the third flow path; a second valve body 19 which is stored in the second valve chamber and whose tip abuts on the tip of the first valve body; a rotor 7 which is rotated by exciting a stator coil 24; screw feeding mechanisms 9 and 13 which make the first valve body contact with and separate from the first valve seat by the rotation of the rotor; and an energizing means 20 which energizes the second valve body toward the first valve body side so that the second valve body follows the first valve body for moving, thus the second valve body is made to contact with and separate from the second valve seat.
Inventors:
Koji Higuchi
Application Number:
JP2010141203A
Publication Date:
May 13, 2015
Filing Date:
June 22, 2010
Export Citation:
Assignee:
Fuji Koki Co., Ltd.
International Classes:
F16K31/04; F16K1/44; F16K11/065; F16K31/42; F25B41/04
Domestic Patent References:
| JP11287352A | ||||
| JP54165324U | ||||
| JP1092566U | ||||
| JP58127274U | ||||
| JP3019175U | ||||
| JP6030813U |
Attorney, Agent or Firm:
Jun Nakai