CA2453121A1 - High-speed defrost refrigeration system - Google Patents

High-speed defrost refrigeration system Download PDF

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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
Application number
CA002453121A
Other languages
French (fr)
Other versions
CA2453121C (en
Inventor
Serge Dube
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/189,462 external-priority patent/US6775993B2/en
Application filed by Individual filed Critical Individual
Publication of CA2453121A1 publication Critical patent/CA2453121A1/en
Application granted granted Critical
Publication of CA2453121C publication Critical patent/CA2453121C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • 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.
CA002453121A 2002-07-08 2003-07-04 High-speed defrost refrigeration system Expired - Fee Related CA2453121C (en)

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)

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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