Title:
電動モータ式切換弁
Document Type and Number:
Japanese Patent JP4602593
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance the easiness and quickness of the action of changeover of a refrigerant passage more and enhance the reliability on a change-over valve more. SOLUTION: This four-way change-over valve is equipped with a motor part 10 and a main body part 50 comprising a case 30, a main valve 70 arranged in a valve chamber 73, and a valve seat 80. The valve seat 80 is equipped with a suction pressure leading port 82 and a discharge pressure leading port 83 communicating with the suction pressure side and the discharge pressures side, respectively, of a compressor, and two leading holes 84 and 85 communicating with indoor and outdoor heat exchangers, respectively. The main valve 70 is equipped with a communication part 74a which selectively communicates with the suction pressure leading port 82 and the two communication holes 84 and 85, and a pressure equalizing port 77 which connects the communication part 74a with the valve chamber 73. A sub valve 60 interlocking with the rotation of a rotor 40 is provided on the main valve 70, and the rotation of the sub valve 60 opens and closes the pressure equalizing port 77. The main valve 70 is shifted for changeover of the communication port in condition that the pressure equalizing port 77 is open.
Inventors:
Eiichi Sasada
Ouchi coexistence
Nakajima Masaki
Naoya Kurosawa
Tetsuya Aoki
Ouchi coexistence
Nakajima Masaki
Naoya Kurosawa
Tetsuya Aoki
Application Number:
JP2001147265A
Publication Date:
December 22, 2010
Filing Date:
May 17, 2001
Export Citation:
Assignee:
Fuji Koki Co., Ltd.
International Classes:
F16K31/04; F16K11/074; F25B41/04
Domestic Patent References:
| JP11230386A | ||||
| JP2001050405A | ||||
| JP8247328A | ||||
| JP9292050A | ||||
| JP10281321A | ||||
| JP2000065221A | ||||
| JP9133170A |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office
Masaaki Ban
Masaaki Ban