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Rotary compressor and method for manufacturing the same

A rotary compressor and rotary compression technology, which is applied to rotary piston machines, rotary piston pumps, machines/engines, etc., can solve the problems of large gap between blade grooves and blades, low machining accuracy, and refrigerant leakage, etc., to achieve Effects of suppressing gap leakage, improving machining accuracy, and reducing gaps

Active Publication Date: 2005-03-16
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the end surface area of ​​the roller 148 is too small, the refrigerant leaks from the end surface of the roller 148 because the sealing performance of the end surface of the roller 148 is low.
If the end surface area of ​​the roller 148 is too large, the sliding resistance of the roller 148 increases, and as a result, the input of the rotary compressor 10 increases and the cooling coefficient (Coefficient of Parformance: COP) decreases.
[0005] On the other hand, the vane grooves of conventional rotary compressors are formed by cutting (broaching), and the surface of the vane grooves is rough and the flatness is low during cutting.
That is, due to the low machining accuracy, the gap between the vane groove and the vane must be set larger
In this way, although the sliding resistance of the vane can be reduced by increasing the gap, the problem that the refrigerant in the cylinder easily leaks from the gap also arises accordingly.

Method used

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  • Rotary compressor and method for manufacturing the same
  • Rotary compressor and method for manufacturing the same
  • Rotary compressor and method for manufacturing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0022] figure 1 It is a vertical cross-sectional view showing a vertical internal high-pressure single-stage rotary compressor 10 including a rotary compression element 32 as an embodiment of the present invention. exist figure 1 Among them, the rotary compressor 10 is an internal high-pressure single-stage rotary compressor using fluorine-based refrigerant R410A as a refrigerant. The rotary compressor 10 is composed of a hermetic container 12 as a casing, an electric element 14 as a driving element, and a rotary compression element 32 . The airtight container 12 is constituted by a cylindrical container body 12A made of steel plate and a substantially bowl-shaped end cap (lid body) 12B that closes the upper opening of the container body 12A. The electric element 14 is disposed above the internal space of the container body 12A of the airtight container 12 . The rotary compression element 32 is arranged below the electric element 14 and is driven by the rotation shaft 16 ...

Embodiment 2

[0054] In Embodiment 1, the end surface area A of the roller 48 and the rotational compression element 32 are excluded by notching the inner side (the side of the eccentric portion 44 ) of the contact surface of the roller 48 which is in contact with the upper support member 54 and the lower support member 56 . The ratio A / B of volume B is set to 30mm 2 / cm 3 ~60mm 2 / cm 3 , but not limited thereto, it is also possible to change the shape of the eccentric portion 44, or the inner side of the expansion roller 48, to increase the contact area with the upper support member 54 and the lower support member 56, etc., so that the end surface area A of the roller 48 is related to the rotation The ratio A / B of the exclusion volume B of the compression element 32 is set to 30mm 2 / cm 3 ~60mm 2 / cm 3 . Also in this way, the same effect as that of the above-mentioned embodiment can be obtained.

Embodiment 3

[0056] In Embodiment 1 and Embodiment 2, the cylinder of the rotary compressor 10 adopts figure 2 Shown circular cylinder 40, but not limited thereto, for example, can also be used Figure 5 The shown cuttlefish-shaped air cylinder can also obtain the same effects as those of the above-mentioned embodiments.

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Abstract

The purpose of this invention is to decrease the leakage of refrigeration preparation in the revolving compressor, and restrain sliding resistance and increase refrigeration coefficient (COP). The revolving compressor of this invention (10) includes: the revolving axletree(16) of factors droved (14), revolving and compressing factors of the drive (32), the bicycle pump (40) of the revolving and compressing factors (32), the eccentric roller (48) set in the pump and tabling to the eccentric part of the revolving axletree, the ringent side of the obdurate pump (40) with the upper supporting parts (54) of the revolving axletree (16) and the lower supporting parts (56), the tangent acreage A of the roller (48) and the upper (54) and the lower supporting parts (56), the vent volume B of the revolving and compressing factors, the ratio of A and B (A / B) is 30 sq mm / cu cm to 60 sq mm / cu cm.

Description

technical field [0001] The present invention relates to a rotary compressor provided with a rotary compression element driven by a rotary shaft of the drive element and a method of manufacturing the same. Background technique [0002] In conventional rotary compressors of this type, refrigerant is sucked into the low-pressure chamber side of the cylinder from the suction port of the rotary compression element, compressed by the action of the rollers and vanes, and then discharged to the outside from the discharge port of the high-pressure chamber side of the cylinder. The roller is installed in the cylinder, fits in the eccentric part of the rotating shaft, and rotates eccentrically in the cylinder. The upper and lower openings of the rollers and cylinders are closed by support members. In addition, vane grooves are provided in the radial direction of the cylinder, and the vanes are movably mounted in the vane grooves (see Japanese Patent Application Laid-Open No. 8-47207)....

Claims

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Application Information

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IPC IPC(8): F04C18/356
Inventor 原正之坂庭正纯铃木淳一金山孝男
Owner SANYO ELECTRIC CO LTD
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