Air-conditioning apparatus

US8943849B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8943849-B2
Application numberUS-200913202195-A
CountryUS
Kind codeB2
Filing dateMar 23, 2009
Priority dateMar 23, 2009
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An air-conditioning apparatus is provided with a heat-source device that supplies a refrigerant, a relay unit that exchanges heat of a heat medium such as water or anti-freezing fluid supplied from the heat-source device in an intermediate heat exchanger and supplies the heat medium, an indoor unit that exchanges heat between a use side heat exchanger through which the heat medium supplied from the relay unit flows and indoor air and performs cooling or heating in the indoor space, a controller that controls operations of the heat-source device, the relay unit and the indoor unit, and a third temperature sensor that detects the temperature of the heat medium flowing through the use side heat exchanger, and if an abnormality in at least one of the heat-source device and the relay unit is detected, the controller continues the operation of the indoor unit while the temperature detected by the third temperature sensor remains within a first predetermined temperature range.

First claim

Opening claim text (preview).

The invention claimed is: 1. An air-conditioning apparatus, comprising: at least one indoor unit; at least one relay unit; a refrigerant cycle for a refrigerant including a compressor, a four way valve and a heat exchanger that supplies the refrigerant that changes in two phases or is in a supercritical state to the at least one relay unit wherein the at least one relay unit is configured to exchange heat between the refrigerant from the refrigerant cycle and a heat medium s…

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Frequently asked questions

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What does patent US8943849B2 cover?
An air-conditioning apparatus is provided with a heat-source device that supplies a refrigerant, a relay unit that exchanges heat of a heat medium such as water or anti-freezing fluid supplied from the heat-source device in an intermediate heat exchanger and supplies the heat medium, an indoor unit that exchanges heat between a use side heat exchanger through which the heat medium supplied from…
Who is the assignee on this patent?
Takata Shigeo, Yamashita Kouji, Mitsubishi Electric Corp
What technology area does this patent fall under?
Primary CPC classification F24F3/06. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 03 2015 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).