To set the flow rate of a refrigerant flowing through a motor-operated valve constant in both forward and backward flow directions.
This motor-operated valve 10 is provided with: a valve body 12 regulating a passage flow rate of a fluid by a valve element in a valve chest; a can 16 fixed to the valve body 12, and having a rotor 17 operating the valve element 13 incorporated therein; and a stator 18 externally fitted to the can 16 and rotationally driving the rotor 17. The motor-operated valve is structured such that the valve element 13 is made rotatable, and the flow rate of a fluid is set nearly constant in both the forward and backward flow directions of the fluid. Therefor, the outer surface of the valve element 13 is formed into a cylindrical shape, and the valve element is rotated by using the center line of the cylinder as an axis, and an orifice 13a and a cutout part 13b for running the refrigerant between passages 2a and 2b are formed on the valve element 13.
KOYAIZU KAORU
AOKI TETSUYA
| JP2003090650A | 2003-03-28 | |||
| JPH0328583A | 1991-02-06 | |||
| JPH01152176U | 1989-10-20 | |||
| JP2001235049A | 2001-08-31 | |||
| JP2000314575A | 2000-11-14 | |||
| JP2001050615A | 2001-02-23 | |||
| JPH02159485A | 1990-06-19 | |||
| JPH02141778U | 1990-11-29 |
Sekiya Mitsuo
Yasushi Hayakawa