Air conditioner including a bypass pipeline for a defrosting operation

US9506674B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9506674-B2
Application numberUS-13209209-A
CountryUS
Kind codeB2
Filing dateJan 15, 2009
Priority dateJan 15, 2009
Publication dateNov 29, 2016
Grant dateNov 29, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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An air conditioner that can perform defrosting efficiently while heating or the like is continued even if the air conditioner is configured by one outdoor unit is obtained. In an air conditioner in which an outdoor unit having a compressor that pressurizes and discharges a refrigerant, a plurality of outdoor heat exchangers that exchange heat between outside air and the refrigerant, and a four-way valve that switches a channel on the basis of an operation form and a plurality of indoor units, each having an indoor heat exchanger that exchanges heat between the air in a space to be air-conditioned and the refrigerant and an indoor throttle device are connected by a pipeline so as to configure a refrigerant circuit, a bypass pipeline that divides the refrigerant discharged from the compressor so as to allow the refrigerant to flow into each of the outdoor heat exchangers connected in parallel by a pipeline, a plurality of outdoor third opening/closing valves that pass or shut off the refrigerant from the bypass pipeline to each of the outdoor heat exchangers, and a plurality of outdoor second opening/closing valves that pass or shut off the refrigerant from the indoor unit to each of the outdoor heat exchangers are disposed in the outdoor unit.

First claim

Opening claim text (preview).

The invention claimed is: 1. An air conditioner, comprising: an outdoor unit having a compressor that pressurizes and discharges a refrigerant, a plurality of outdoor heat exchangers that exchange heat between outside air and the refrigerant, and first channel switching means that switches a channel on the basis of an operation form; a plurality of indoor units, each having an indoor heat exchanger that exchanges heat between air in a space to be air-conditioned and the refriger…

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What does patent US9506674B2 cover?
An air conditioner that can perform defrosting efficiently while heating or the like is continued even if the air conditioner is configured by one outdoor unit is obtained. In an air conditioner in which an outdoor unit having a compressor that pressurizes and discharges a refrigerant, a plurality of outdoor heat exchangers that exchange heat between outside air and the refrigerant, and a four-…
Who is the assignee on this patent?
Morimoto Osamu, Saito Makoto, Yanachi Satoru, and 2 more
What technology area does this patent fall under?
Primary CPC classification F25B13/00. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).