CA2453121A1 - High-speed defrost refrigeration system - Google Patents
High-speed defrost refrigeration system Download PDFInfo
- Publication number
- CA2453121A1 CA2453121A1 CA002453121A CA2453121A CA2453121A1 CA 2453121 A1 CA2453121 A1 CA 2453121A1 CA 002453121 A CA002453121 A CA 002453121A CA 2453121 A CA2453121 A CA 2453121A CA 2453121 A1 CA2453121 A1 CA 2453121A1
- Authority
- CA
- Canada
- Prior art keywords
- stage
- refrigerant
- pressure
- refrigeration system
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Defrosting Systems (AREA)
Abstract
A defrost refrigeration system having a main refrigeration system and comprising a first line extending from a compressing stage to an evaporator stage and adapted to receive refrigerant in high-pressure gas state from the compressing stage. A first pressure reducing device on the first line is provided for reducing a pressure of the refrigerant in the high-pressure gas state to a second low-pressure gas state. Valves are provided for stopping a flow of the refrigerant in a first low-pressure liquid state from a condensing stage to evaporators of the evaporator stage and directing a flow of the refrigerant in the second low-pressure gas state to release heat to defrost the evaporators and thereby changing phase at least partially to a second low-pressure liquid state. A second line is provided for directing the refrigerant having released heat to the compressing stage, the condensing stage or the evaporator stage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/189,462 US6775993B2 (en) | 2002-07-08 | 2002-07-08 | High-speed defrost refrigeration system |
US10/189,462 | 2002-07-08 | ||
CA002434422A CA2434422C (en) | 2002-07-08 | 2003-07-04 | High-speed defrost refrigeration system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002434422A Division CA2434422C (en) | 2002-07-08 | 2003-07-04 | High-speed defrost refrigeration system |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2453121A1 true CA2453121A1 (en) | 2003-10-19 |
CA2453121C CA2453121C (en) | 2005-12-27 |
Family
ID=30771633
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002449576A Expired - Lifetime CA2449576C (en) | 2002-07-08 | 2003-07-04 | High-speed defrost refrigeration system |
CA002453121A Expired - Fee Related CA2453121C (en) | 2002-07-08 | 2003-07-04 | High-speed defrost refrigeration system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002449576A Expired - Lifetime CA2449576C (en) | 2002-07-08 | 2003-07-04 | High-speed defrost refrigeration system |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2449576C (en) |
-
2003
- 2003-07-04 CA CA002449576A patent/CA2449576C/en not_active Expired - Lifetime
- 2003-07-04 CA CA002453121A patent/CA2453121C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2449576C (en) | 2005-02-08 |
CA2453121C (en) | 2005-12-27 |
CA2449576A1 (en) | 2003-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |