The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 21, 2000

Filed:

Dec. 23, 1998
Applicant:
Inventor:

Hyoung Mo Koo, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
621964 ; 621963 ; 62197 ;
Abstract

A multiple type air conditioner has an outdoor unit and multiple indoor units. The outdoor unit has a compressor and an outdoor heat exchanger. Each indoor unit has an indoor heat exchanger. A bypass pipe connects the outdoor heat exchanger to the compressor, and the opening degree of the bypass pipe is controlled by a bypass valve. The temperature of the refrigerant circulating from the indoor heat exchanger to the compressor is sensed by a sensor. As the temperature of the refrigerant sensed by the sensor increases, the opening degree of the bypass pipe decreases. Thus, the amount of refrigerant supplied to the indoor heat exchanger and that of refrigerant bypassed by the bypass pipe are controlled according to the temperature of the refrigerant, whereby the cooling efficiency is enhanced. Further, the difference in pressure between the refrigerant flowing out of the indoor heat exchanger and that flowing out of the bypass pipe is lowered, whereby noise is reduced.


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