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Fluid machine and refrigeration cycle device

A technology of fluid machinery and working fluid, applied in refrigerators, refrigeration components, mechanical equipment, etc., can solve problems such as large friction ratio

Inactive Publication Date: 2011-04-27
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the friction between the piston 513 and the end plate at the time of starting is relatively large

Method used

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  • Fluid machine and refrigeration cycle device
  • Fluid machine and refrigeration cycle device
  • Fluid machine and refrigeration cycle device

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0035] In this embodiment, due to its characteristics, a fluid pressure motor, which is generally used only for non-compressible working fluid, is used as a power recovery mechanism and a sub-compressor of a refrigeration cycle apparatus using a compressive refrigerant as a working fluid. Thereby, the energy efficiency of the operation of a refrigeration cycle apparatus improves.

[0036] In this specification, "fluid pressure motor" means that the motor rotates due to the pressure difference between the pressure of the working fluid (typically refrigerant) on the suction side and the pressure of the working fluid on the discharge side, and does not increase the volume of the sucked working fluid. Change the motor to start the ejection stroke. The pressure of the working fluid on the suction s...

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PUM

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Abstract

A fluid machine (110) is comprised of a power recovery mechanism (105) which recovers power from the working fluid, a sub-compressor (102) which is driven by the recovered power, and a shaft (12) which links the power recovery mechanism (105) and the sub-compressor (102) so that the recovered power is transmitted from the power recovery mechanism (105) to the sub-compressor (102). In the power recovery mechanism (105), a first intake port (26) and a second intake port (27) are provided to open and close accompanying the rotation of a piston (21) and let the working fluid flows into a working chamber (23a) on the high pressure side. The second intake port (27) is provided at a position facing the first intake port (26) with respect to the axial direction of the shaft (12).

Description

technical field [0001] The invention relates to a fluid machine and a refrigeration cycle device. Background technique [0002] Generally, a refrigerant circuit of a refrigeration cycle device has a structure in which a compressor, a radiator, an expansion valve, and an evaporator are sequentially connected. The refrigerant changes while expanding from high pressure to low pressure in the expansion valve, and releases internal energy at this time. The greater the pressure difference between the low-pressure side (evaporator side) and the high-pressure side (radiator side) of the refrigerant circuit, the greater the internal energy released, so the energy efficiency of the refrigeration cycle decreases. In view of such problems, various technologies for recovering internal energy of refrigerant have been proposed. [0003] Figure 8 It is a configuration diagram of a conventional refrigeration cycle device 501 disclosed in JP 2004-324595 A and WO 2008 / 050654 A. The refrige...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01C20/10F01C1/356F01C13/04F25B1/04
CPCF01C1/3564F25B1/10F01C11/008F01C21/18F01C20/10F25B2500/26F25B1/04F25B2600/2501F01C13/04F25B2400/14
Inventor 和田贤宣长谷川宽松井大田口英俊咲间文顺
Owner PANASONIC CORP