| 摘要 |
PURPOSE:To cool efficiently the whole interior of an enclosed case by accommodating an injection pipe branched from an oil cooler inlet and opened in a compressor cylinder within the enclosed casing. CONSTITUTION:A refrigerating cycle is formed by interconnecting sequentially the discharge side of a compression section 4 of a compressor body, a first capacitor 1, a first capillary 8, an oil cooler 3 received in an enclosed casing 5, a econd capacitor 2, a second capillary 10, an evaporator 6 and the intake side of the compressor. An injection pipe 9 is branched from an inlet portion of the oil cooler 3 and the outlet of said pipe 9 is opened to the compression section 4 of the compressor body. The injection pipe 9 is piped in the enclosed casing 5. Thus, the compression section 4 of the compressor is sufficiently cooled, and compression performance and cooling performance of the refrigerating cycle are improved. |
