| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electronic expansion valve that can be adjusted to a refrigerant rate that can correspond to air conditioners of various capacities. SOLUTION: An electronic expansion valve needle part 7 is configured by a three-stage structure having different taper angles at each stage, wherein the electronic expansion valve needle part 7 includes, at the tip end thereof, a needle minimum taper angle (θ3) part 7a, a needle medium taper angle (θ2) part 7b, and a needle maximum taper angle (θ1) part 7c. COPYRIGHT: (C)2012,JPO&INPIT |
