Compressor oil recovering apparatus and multi-unit air conditioner equiped with the same

a compressor oil recovery and multi-unit technology, applied in the field of compressor oil recovery apparatus and multi-unit air conditioners equipped with the same, can solve the problems of compressor reliability degradation, compressor abrasion and performance degradation, compressor oil shortage, etc., to achieve smooth re-supplying, enhance the reliability of the compressor, and enhance the performance of the air conditioner

Inactive Publication Date: 2006-05-25
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014] An object of the present invention is to provide a compressor oil recovering apparatus which is capable of smoothly re-supplying, to a compressor, oil separated in an oil separator after emerging from the compressor, thereby achieving an enhancement in the reliability of the compressor, and thus, an enhancement in the performance of an air conditioner using the compressor oil recovering apparatus, and to provide a multi-unit air conditioner using the compressor oil recovering apparatus.

Problems solved by technology

In the conventional multi-unit air conditioner, however, problems occur when the oil separated by the oil separator is returned to the compressor via a refrigerant suction line.
As a result, shortage of oil may occur in the compressor.
Such oil shortage may cause abrasion and performance degradation of the compressor.
As a result, the compressor exhibits a degradation in reliability.
The performance degradation of the compressor results in a degradation in the efficiency of the multi-unit air conditioner using the compressor, thereby causing a degradation in cooling / heating performance.

Method used

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  • Compressor oil recovering apparatus and multi-unit air conditioner equiped with the same
  • Compressor oil recovering apparatus and multi-unit air conditioner equiped with the same
  • Compressor oil recovering apparatus and multi-unit air conditioner equiped with the same

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first embodiment

[0041] First, a compressor oil recovering apparatus according to the present invention will be described with reference to FIG. 1.

[0042] As shown in FIG. 1, the compressor oil recovering apparatus according to the first embodiment of the present invention includes a compressor 83, which is included in an air conditioner, an oil separator 85 for separating oil from a refrigerant discharged from the compressor 83, and an oil recovering port 830 provided at the compressor 83.

[0043] The compressor oil recovering apparatus also includes an oil recovering tube 163 having one end connected to the oil separator 85, and the other end connected to the oil recovering port 830.

[0044] The connection of the oil recovering port 830 is achieved at positions where oil recovered through the oil recovering tube 163 does not interfere with refrigerant flows respectively sucked along a refrigerant suction tube 83b of the compressor 83 and discharged along a refrigerant discharge line 83a of the compre...

second embodiment

[0053] Next, a compressor oil recovering apparatus according to the present invention will be described with reference to FIG. 2.

[0054] As shown in FIG. 2, the compressor oil recovering apparatus according to the second embodiment of the present invention includes a compressor 83, an oil separator 85, an oil recovering port 830, an oil recovering tube 163, a strainer 163a, and an adjuster, identically to the above-described first embodiment.

[0055] Contrary to the first embodiment, however, the adjuster of the second embodiment includes a float 183a adapted to sense the level of oil stored in the compressor 83, and a float valve 183b for controlling the supply or cut-off of the oil supplied to the compressor 83, and the amount of the supplied oil in accordance with the oil level sensed by the float 183a. The float valve 183b is arranged at the oil recovering tube 163.

[0056] Similarly to the first embodiment, in accordance with the second embodiment, it is possible to not only suppl...

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Abstract

A compressor oil recovering apparatus is disclosed which is capable of smoothly re-supplying, to a compressor, oil separated in an oil separator after emerging from the compressor, thereby achieving an enhancement in the reliability of the compressor, and thus, an enhancement in the performance of an air conditioner using the compressor oil recovering apparatus. A multi-unit air conditioner using the compressor oil recovering apparatus is also disclosed. The compressor oil recovering apparatus includes an oil separator adapted to separate oil from a refrigerant discharged from a compressor, an oil recovering port provided at the compressor, and an oil recovering tube having one end connected to the oil separator, and the other end connected to the oil recovering port.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2004-94996, filed on Nov. 19, 2004, which is hereby incorporated by reference as if fully set forth herein. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to an air conditioner, and more particularly, to a compressor oil recovering apparatus and a multi-unit air conditioner equipped with the same. [0004] 2. Discussion of the Related Art [0005] Generally, air conditioners perform procedures of compressing, condensing, expanding and evaporating a refrigerant to cool and / or heat a confined space. Such air conditioners are classified into a cooling type wherein a refrigerant flows only in one direction through a refrigerant cycle, to supply cold air to a confined space, and a cooling and heating type wherein a refrigerant flows bi-directionally in a selective manner through a refrigerant cycle, to selectively supply cold air or hot air to a confined space. [0006...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B43/02
CPCF25B13/00F25B31/004F25B43/02F25B2313/023F25B2313/025F25B2400/075F25B2700/2105F25B2700/21155F24F1/06F25B43/00
Inventor JEONG, HO JONGHA, DO YONGYOON, PIL HYUNCHOI, JIN HAKANG, WON CHUL
Owner LG ELECTRONICS INC
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