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Rotary compressors and refrigeration cycle units

A rotary compressor, compression chamber technology, used in rotary piston machinery, rotary piston pumps, rotary piston/oscillating piston pump components, etc.

Active Publication Date: 2019-11-12
TOSHIBA CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

container storage oil

Method used

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  • Rotary compressors and refrigeration cycle units
  • Rotary compressors and refrigeration cycle units
  • Rotary compressors and refrigeration cycle units

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0076] First, the refrigeration cycle apparatus 1 will be briefly described. figure 1 It is a schematic configuration diagram of the refrigeration cycle apparatus 1 including a cross-sectional view of the rotary compressor 2 in the first embodiment.

[0077] Such as figure 1 As shown, the refrigeration cycle apparatus 1 of this embodiment includes a rotary compressor 2, a radiator 3 connected to the rotary compressor 2, an expansion device 4 connected to the radiator 3, and a rotary compressor connected to the expansion device 4. Evaporator 5 of machine 2.

[0078] The rotary compressor 2 is a so-called rotary compressor. The rotary compressor 2 compresses the low-pressure gas refrigerant introduced into the inside to become a high-temperature and high-pressure gas refrigerant. In addition, the specific structure of the rotary compressor 2 will be mentioned later.

[0079] The radiator 3 dissipates heat from the high-temperature and high-pressure gas refrigerant sent from ...

no. 2 Embodiment approach

[0150] Figure 7 It is a plan view of the blade 155 in 2nd Embodiment. In addition, in the following description, the same code|symbol is attached|subjected to the structure similar to the said 1st Embodiment, and description is abbreviate|omitted.

[0151] Figure 7 In the illustrated blade 155 , the groove width H of the oil supply groove 181 becomes narrower from the outer side toward the inner side in the radial direction. However, the oil supply groove 181 has only to narrow the groove width H at least at the inner end in the radial direction. That is, the oil supply groove 181 may have the same groove width H at the outer end in the radial direction, and may have a narrower groove width H at the inner end in the radial direction. and, Figure 7 In the illustrated example, the oil supply groove 181 is formed in a trapezoidal shape when viewed from the axial direction, but is not limited thereto, and may be formed in a triangular shape (a shape that becomes sharper tow...

no. 3 Embodiment approach

[0158] Figure 8 It is a plan view of the blade 255 in 3rd Embodiment. In addition, in the following description, the same code|symbol is attached|subjected to the structure similar to the said 2nd Embodiment, and description is abbreviate|omitted.

[0159] Figure 8 In the vane 255 shown, the center T1 of the oil supply groove 181 is offset to the compression chamber with respect to the center T2 of the vane 255 in the vane width direction. Therefore, the sealing width S2 of the portion of the sealing surface located closer to the compression chamber relative to the oil supply groove 181 is narrower than the sealing width S1 of the portion located closer to the suction chamber relative to the oil supply groove 181 .

[0160] According to this configuration, the sealing width S1 of the portion of the sealing surface that is located closer to the suction chamber with respect to the oil supply groove 181 can be ensured, so that leakage of the refrigerant from the compression c...

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PUM

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Abstract

The invention provides a rotary compressor and a refrigeration cycle device. According to the embodiment, the rotary compressor has a container, a cylinder, a sealing board, a roller, blades and an oil supply container. The oil supply container is formed at an opposite surface opposite to the sealing board in the blades, and extends along a moving direction of the blades. A first end part of the oil supply container is located outside a cylinder chamber and communicates with the inside of the container, and a second end part ends in the blades. The dynamic viscosity of lubricating oil at 100 DEG C is set to be no less than 5 mm<2> / s and no more than 25 mm<2> / s. According to the technical solution, the compressor allows long-term activity reliability to be realized and compression performance to be improved.

Description

[0001] Related Application Cross Reference [0002] This application is based on Japanese patent application 2015-148857 (filing date 28.7.2015), and enjoys priority from this application. This application incorporates the entire content of this application by reference. technical field [0003] Embodiments of the present invention relate to a rotary compressor and a refrigeration cycle device. Background technique [0004] As a rotary compressor used in a refrigeration cycle apparatus such as an air conditioner, there is known a structure including: a container for storing lubricating oil; and a compression mechanism part accommodated in the container. The compression mechanism unit includes: a cylindrical cylinder; a closing plate that closes an opening of the cylinder; and a roller that rotates eccentrically in a cylinder chamber formed by the cylinder and the closing plate. A blade is disposed in a blade groove formed in the cylinder, and a front end surface of the bla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/356F04C29/02
CPCF04C18/3564F04C29/02F04C2210/14F04C2210/44
Inventor 渡辺哲永平山卓也铃木秀明志田胜吾
Owner TOSHIBA CARRIER CORP
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