The refrigeration cycle apparatus and the expansion valve of the refrigeration cycle, the connection block, an internal heat exchanger

摘要

PROBLEM TO BE SOLVED: To provide a refrigerating cycle device capable of supplying lubricating oil to a compressor 10 while minimizing limitation of a mounting place and cost.;SOLUTION: An oil storage part 416 for storing part of lubricating oil filled into a refrigerating cycle is provided in part of a second outflow port 414, and heat of a high pressure refrigerant flowing in a first inflow port 411 is transmitted to the lubricating oil stored in the oil storage part 416. Due to this structure, since the oil storage part 416 is provided within a box-shaped expansion valve 40A serving as the refrigerating cycle device is provided and lubricating oil is supplied from the oil storage part 416 to the compressor 10, an arrangement space for a conventional oil separator is not required, so as to achieve space saving. Moreover, since the simple structure in which the oil storage part 416 is provided in part of the second outflow port 414 within the box-shaped expansion valve 40A is added, cost to be born can be suppressed.;COPYRIGHT: (C)2010,JPO&INPIT