Unlock instant, AI-driven research and patent intelligence for your innovation.

Sealed refrigerant compressor and refrigeration device including same

a refrigerant compressor and seal technology, applied in the direction of positive displacement liquid engines, piston pumps, lighting and heating apparatus, etc., can solve the problems of deteriorating the seal performance of the suction reed, affecting the reliability of the refrigerant compressor, and affecting the efficiency of the refrigeration cycle. achieve the effect of high reliability

Inactive Publication Date: 2020-05-14
PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a sealed refrigerant compressor that can reliably use low viscosity lubricating oil, and a refrigeration device that includes this compressor.

Problems solved by technology

It is known that when lubricating oil having lower viscosity is used, the low molecular components, such as oligomer, contained in the resin members are extracted by the lubricating oil, and this deteriorates the reliability of the refrigerant compressor.
This may deteriorate seal performance of the suction reed.
Further, if the oligomer extracted by the lubricating oil is fed to a high-pressure side of a refrigeration cycle, a capillary tube of the refrigeration cycle may be clogged, and this may reduce the amount of refrigerant that is circulating.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sealed refrigerant compressor and refrigeration device including same
  • Sealed refrigerant compressor and refrigeration device including same

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0035]Configuration of Refrigerant Compressor

[0036]First, a typical example of a refrigerant compressor according to Embodiment 1 will be specifically described with referent to FIG. 1. FIG. 1 is a schematic sectional view of a refrigerant compressor 100 according to Embodiment 1.

[0037]As shown in FIG. 1, a refrigerant gas 102 is filled in a sealed container 101 of the refrigerant compressor 100, and lubricating oil 103 is stored in a bottom portion of the sealed container 101. In the present disclosure, as described below, for example, a hydrocarbon refrigerant is used as the refrigerant gas 102, and oil having low viscosity and high flash point is used as the lubricating oil 103. An electric element 106 and a compression element 107 are accommodated in the sealed container 101. The electric element 106 is constituted by a stator 104 and a rotor 105. The compression element 107 is a reciprocating type driven by the electric element 106.

[0038]The compression element 107 is constitut...

embodiment 2

[0086]In Embodiment 2, one example of a refrigeration device including the refrigerant compressor 100 described in Embodiment 1 will be specifically described with reference to FIG. 2. FIG. 2 schematically shows a schematic configuration of a refrigeration device 200 including the refrigerant compressor 100 according to Embodiment 1. Therefore, Embodiment 2 schematically describes a basic configuration of the refrigeration device 200. However, needless to say, the specific configuration of the refrigeration device 200 is not limited to this.

[0087]As shown in FIG. 2, the refrigeration device 200 according to Embodiment 2 includes a main body 206, a partition wall 209, a refrigerant circuit 201 (refrigeration cycle), and the like. The main body 206 is constituted by a heat-insulation box body, a door body, and the like. The box body includes an opening on one surface thereof, and the door body opens and closes the opening of the box body. The inside of the main body 206 is divided by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A sealed refrigerant compressor (100) includes: a compression element (107) accommodated in a sealed container (101) and configured to compress a refrigerant; and an electric element (106) configured to drive the compression element (107). Lubricating oil (103) is stored in the sealed container (101). A resin member is included as a member accommodated in the sealed container (101). The amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member. Kinetic viscosity of the lubricating oil 103 at 40° C. falls within a range of 0.1 to 5.1 mm2 / s. A flash point of the lubricating oil 103 is 110° C. or more.

Description

TECHNICAL FIELD[0001]The present invention relates to a sealed refrigerant compressor which uses low-viscosity lubricating oil and has high reliability, and a refrigeration device including the sealed refrigerant compressor.BACKGROUND ART[0002]Highly efficient refrigerant compressors which reduce the use of fossil fuels from the viewpoint of the protection of the global environment have been developed in recent years. For example, in order to increase the efficiency of the refrigerant compressors, proposed is the use of lubricating oil having lower viscosity.[0003]For example, each of PTLs 1 and 2 discloses a specific composition containing ester, as a freezer lubricating oil composition having low viscosity, high lubricity, and excellent long term stability in a low temperature range. Kinetic viscosity of the lubricating oil composition at 40° C. falls within a range of 6 to 28 mm2 / s.[0004]According to the sealed refrigerant compressor, members made of resin (resin members) are inc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F04B39/02F04B35/04
CPCC10N2040/30C10N2020/02F04B35/04F04B39/0005F04B39/12F04B39/023F04B39/0094F25B2500/13F25B1/02F04B39/0238F04B39/0215
Inventor OYAGI, SHINGOKAWABATA, HIROTAKAHAYASHI, HIROTO
Owner PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE