التفاصيل البيبلوغرافية
| العنوان: |
REFRIGERATION CYCLE APPARATUS |
| Document Number: |
20120060548 |
| تاريخ النشر: |
March 15, 2012 |
| Appl. No: |
13/320849 |
| Application Filed: |
May 28, 2010 |
| مستخلص: |
A refrigeration cycle apparatus which is capable of performing matching of the volumetric flow rate without performing pre-expansion it obtained. A refrigeration circuit includes a compression unit including a main compressor and a second compressor, a gas cooler, an expansion mechanism, and an evaporator interconnected with pipes, and a sub-compression mechanism driven by power recovered by the expansion mechanism, a suction side of the sub-compression mechanism is connected to a compression process of the compression unit, a discharge side of the sub-compression mechanism is connected to an inlet side of the gas cooler, and flow rate of refrigerant flowing into the sub-compression mechanism is controlled. |
| Inventors: |
Kakuda, Masayuki (Tokyo, JP); Ishizono, Fumihiko (Tokyo, JP); Nagata, Hideaki (Tokyo, JP); Takenaka, Naofumi (Tokyo, JP); Okazaki, Takashi (Tokyo, JP); Shimoji, Mihoko (Tokyo, JP); Sekiya, Shin (Tokyo, JP); Koda, Toshihide (Tokyo, JP) |
| Assignees: |
Mitsubishi Electric Corporation (Tokyo, JP) |
| Claim: |
1. A refrigeration cycle apparatus comprising: a refrigeration circuit including a compression unit, a gas cooler, an expansion mechanism, and an evaporator interconnected with pipes; and a sub-compression mechanism driven by power recovered by the expansion mechanism, wherein a suction side of the sub-compression mechanism is connected to a compression process of the compression unit, a discharge side of the sub-compression mechanism is connected to an inlet side of the gas cooler, and flow rate of refrigerant flowing into the sub-compression mechanism is controlled. |
| Claim: |
2. The refrigeration cycle apparatus of claim 1, the compression unit further comprising a plurality of compressors connected by refrigerant pipes in series, the refrigeration cycle apparatus wherein the suction side of the sub-compression mechanism is connected to the refrigerant pipe which connects the compressor, the flow rate of the refrigerant flowing into the sub-compression mechanism is controlled by a rotation speed of the compressor positioned on the downstream side of the refrigerant pipe to which the inlet side of the sub compressor is connected. |
| Claim: |
3. The refrigeration cycle apparatus of claim 1, the compression unit further comprising at least one compressor, the refrigeration cycle apparatus wherein a compression mechanism of the compressor is provided with a sub-discharge port communicating with the compression process of the compression mechanism, and an inlet side of the sub-compression mechanism is connected to the sub-discharge port. |
| Claim: |
4. The refrigeration cycle apparatus of claim 3, wherein volumetric flow rate control means configured to control the flow rate of the refrigerant flowing into the sub-compression mechanism is provided between the sub-compression mechanism and the compressor to which the sub-compression mechanism is connected. |
| Claim: |
5. The refrigeration cycle apparatus of claim 4, wherein the volumetric flow rate control means is a variable expansion device. |
| Claim: |
6. The refrigeration cycle apparatus of claim 4, wherein the volumetric flow rate control means is an intermediate cooler. |
| Claim: |
7. The refrigeration cycle apparatus of claim 2, wherein the refrigerant pipe to which the sub-compression mechanism is connected is provided with an intermediate cooler on the upstream side of a connecting portion between the refrigerant pipe and the sub-compression mechanism. |
| Claim: |
8. The refrigeration cycle apparatus of claim 1, wherein carbon dioxide is used as a refrigerant. |
| Current U.S. Class: |
62/498 |
| Current International Class: |
25 |
| رقم الانضمام: |
edspap.20120060548 |
| قاعدة البيانات: |
USPTO Patent Applications |