Air-conditioning apparatus
US-2019049154-A1 · Feb 14, 2019 · US
Refrigeration system with leak detection
US11435124B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11435124-B2 |
| Application number | US-201916245900-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2019 |
| Priority date | Feb 28, 2018 |
| Publication date | Sep 6, 2022 |
| Grant date | Sep 6, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A transportation refrigeration system includes a compartment to be conditioned. A refrigeration circuit is associated with an enclosure including a compressor. A condenser and an expansion valve are upstream of a first evaporator and a second evaporator. The first evaporator is in parallel with the second evaporator. A first enclosure surrounds the first evaporator. The first enclosure includes a first refrigerant detection sensor in communication with a controller. A second enclosure surrounds the second evaporator. The second enclosure includes a second refrigeration detection sensor in communication with the controller.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of operating a refrigeration cycle comprising the steps of: conditioning a compartment with a refrigeration circuit to a first temperature, wherein the refrigeration circuit includes a compressor, a condenser, an expansion valve upstream of a first evaporator and a second evaporator, wherein the first evaporator is in parallel with the second evaporator; detecting a refrigerant leak in a first enclosure including the first evaporator with a first refrigerant sensor located in the first enclosure; isolating the first evaporator from the refrigerant circuit by closing a first evaporator inlet shut-off valve and a first evaporator outlet shut-off valve; and conditioning the compartment with only the second evaporator to a second temperature greater than the first temperature. 2. The method of claim 1 , including disabling a first fan located adjacent the first evaporator upon detecting a refrigerant leak in the first enclosure. 3. The method of claim 1 , including detecting a refrigerant leak in a second enclosure including the second evaporator with a second refrigerant sensor located in the second enclosure. 4. The method of claim 3 , including isolating the second evaporator from the refrigerant circuit by closing a second evaporator inlet shut-off valve and a second evaporator outlet shut-off valve. 5. The method of claim 3 , including disabling a second fan located adjacent the second evaporator upon detecting a refrigerant leak in the second enclosure. 6. The method of claim 1 , wherein the first refrigerant sensor identifies the presence of refrigerant in the atmosphere of the first enclosure. 7. The method of claim 1 , including providing equal amounts of conditioning with the first evaporator and the second evaporator to the compartment. 8. The method of claim 3 , wherein the first enclosure and the second enclosure are located in the compartment.
Assignees
Inventors
Classifications
by using fluid or vacuum · CPC title
- F25B49/005Primary
of safety devices (F25B49/02 and F25B49/04 take precedence) · CPC title
Refrigeration systems for supermarkets · CPC title
Detecting refrigerant leaks · CPC title
Control means therefor · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11435124B2 cover?
- A transportation refrigeration system includes a compartment to be conditioned. A refrigeration circuit is associated with an enclosure including a compressor. A condenser and an expansion valve are upstream of a first evaporator and a second evaporator. The first evaporator is in parallel with the second evaporator. A first enclosure surrounds the first evaporator. The first enclosure includes…
- Who is the assignee on this patent?
- Carrier Corp
- What technology area does this patent fall under?
- Primary CPC classification F25B49/005. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 06 2022 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).