| 摘要 |
A structure for a variable capacity orifice is provided to achieve flexibility for variable refrigerant flow by having an adjustment cock for adjustment of refrigerant flow depending on fresh air loads within a range of orifice capacity. A structure for a variable capacity orifice comprises a refrigerant pipe(100), an orifice(110), and a dial(120). The refrigerant pipe where refrigerant flows, includes a connection part(101) formed by partial projection of the pipe, a thread contoured on an outer periphery of the connection part, and a through-hole(112) connected with the outside. The orifice expands the refrigerant through variation of sectional width of the inner refrigerant pipe, including a bending part(111) bending towards the connection part in a predetermined shape, wherein an upper side of the bending part is connected with the through-hole. The dial includes a thread contoured on its inner periphery so as to be screwed to the connection part, and an adjustment cock(140) on an upper side of the inside being inserted to the through-hole for adjustment of the refrigerant flow.
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