Expansion compressor apparatus and air conditioner having the same
US-10151513-B2 · Dec 11, 2018 · US
Outdoor unit for multi-type air conditioner
US9683751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9683751-B2 |
| Application number | US-201314428849-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 20, 2013 |
| Priority date | Sep 21, 2012 |
| Publication date | Jun 20, 2017 |
| Grant date | Jun 20, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
An outdoor unit for a multi-type air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, an outdoor expansion valve, a liquid tank, an accumulator, a shutoff valve provided for the refrigerant pipe between a liquid refrigerant inlet/outlet port and the liquid tank in the outdoor unit, and a first bypass circuit provided in the refrigerant pipe for bypassing the shutoff valve through a capillary tube to connect a liquid refrigerant inlet/outlet port side to an upper side of the refrigerant pipe in a gravity direction. The outdoor unit further includes a second bypass circuit for connecting a bottom portion of the liquid tank to an inlet side of the accumulator via an electromagnetic valve.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multi-type air conditioner including a plurality of indoor units and a plurality of outdoor units which are connected via refrigerant piping, each of the outdoor units comprising: a compressor; a four-way valve; an outdoor heat exchanger; an outdoor expansion valve; a liquid tank; an accumulator; a shutoff valve provided for a refrigerant pipe between a liquid refrigerant inlet/outlet port and the liquid tank in each of the outdoor units; and a first bypass circuit provided in the refrigerant pipe bypassing the shutoff valve through a capillary tube to connect a liquid refrigerant inlet/outlet port side to an upper portion of the refrigerant pipe, the first bypass circuit comprising a standing portion extending upward in a gravity direction from the upper portion of the refrigerant pipe. 2. The multi-type air conditioner according to claim 1 , wherein each of the outdoor units further includes a second bypass circuit connecting a bottom portion of the liquid tank to an inlet side of the accumulator via an electromagnetic valve.
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Refrigeration circuit bypassing means · CPC title
for expansion valves or capillary tubes · CPC title
using multiple outdoor units · CPC title
Outdoor unit expansion valves · CPC title
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Frequently asked questions
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- What does patent US9683751B2 cover?
- An outdoor unit for a multi-type air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, an outdoor expansion valve, a liquid tank, an accumulator, a shutoff valve provided for the refrigerant pipe between a liquid refrigerant inlet/outlet port and the liquid tank in the outdoor unit, and a first bypass circuit provided in the refrigerant pipe for bypassing the shuto…
- Who is the assignee on this patent?
- Toshiba Carrier Corp
- What technology area does this patent fall under?
- Primary CPC classification F24F1/08. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 20 2017 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).