Power and ejector cooling unit
US-2023132248-A1 · Apr 27, 2023 · US
Direct expansion evaporator with vapor ejector capacity boost
US12492850B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12492850-B2 |
| Application number | US-202318350739-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2023 |
| Priority date | Jun 20, 2023 |
| Publication date | Dec 9, 2025 |
| Grant date | Dec 9, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A system and method for increasing the refrigeration capacity of a direct expansion refrigeration system having a vapor separator and a vapor ejector. After the throttling process at the expansion device, the mixture of liquid and vapor enters the inlet separator. The vapor separator generates vapor to power the ejector through flashing of warm refrigerant liquid from a higher temperature and pressure to a lower pressure. The cooler refrigerant liquid then goes to the evaporator coil inlet. Furthermore, the system stabilizes the superheat of the outlet vapor and reduces fluctuations in outlet superheat caused by excess unevaporated liquid flowing from the outlets of the tubes due to maldistribution at the inlet.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method for increasing the refrigeration capacity of a direct expansion refrigeration system without risking liquid refrigerant damage to a compressor comprising the following steps, simultaneously: taking liquid from an outlet of an evaporator and delivering it to an ejector, taking refrigerant vapor from an inlet separator located upstream of the evaporator and delivering it to said ejector, using said ejector to warm said refrigerant liquid received from said evaporator with said vapor received from said inlet separator, and taking all liquid and vapor from said ejector and delivering it to said evaporator.
Assignees
Inventors
Classifications
Ejectors with the cooled primary flow at reduced or low pressure · CPC title
Means for preventing liquid refrigerant entering into the compressor · CPC title
Ejectors not being used as compression device · CPC title
- F25B43/006Primary
Accumulators · CPC title
Separators · CPC title
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Frequently asked questions
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- What does patent US12492850B2 cover?
- A system and method for increasing the refrigeration capacity of a direct expansion refrigeration system having a vapor separator and a vapor ejector. After the throttling process at the expansion device, the mixture of liquid and vapor enters the inlet separator. The vapor separator generates vapor to power the ejector through flashing of warm refrigerant liquid from a higher temperature and p…
- Who is the assignee on this patent?
- Evapco Inc
- What technology area does this patent fall under?
- Primary CPC classification F25B43/006. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 09 2025 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).