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US4732007A Expired / Lapsed US ⏱️ 0.0 years remaining

Auxiliary thermal interface to cooling/heating systems

Assignee: MARATHON ENGINE SYSTEMS Inc
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Filing: 1986-12-23
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Granted: 1988-03-22
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Expires: 2006-12-23
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Abstract

Abstract Utilizes an auxiliary chilled/heated medium to provide cooling/heating by interface to a compressor-based refrigerant cycle. Utilizes remotely obtained chilled or warmed thermal exchange media while enabling easy retrofitting and providing greater operating flexibility to compressor-based refrigerant systems.

Inventors

  • 👤 William H. Dolan
  • 👤 William D. Ingle, III

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:58
CPC Classifications
F; F25; F25B; F25B25/00; F25B25/005; F25B1/00

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 202 words
In an improved process for conditioning a second thermal exchange medium utilizing a compressor based refrigerant cycle wherein refrigerant vapor is compressed, the compressed refrigerant vapor is passed through a first thermal exchanger functioning as a condenser in thermal exchange relation to a first thermal exchange medium cooling and condensing said vapor to a liquid at relatively high temperature and pressure and warming said first thermal exchange medium, the liquid refrigerant is then passed through throttling means, and subsequently is passed through a second thermal exchanger functioning as an evaporator in thermal exchange relation to said second thermal exchange medium, said liquid refrigerant being warmed and vaporized at a relatively low temperature and pressure producing a cooling effect to said second thermal exchange medium, the improvement comprising: passing said refrigerant vapor from said second thermal exchanger of said compressor based refrigerant cycle to a third thermal exchanger functioning as a condenser in thermal exchange relation to a third thermal exchange medium, said third thermal exchange medium supplied to said third thermal exchanger at a temperature to cause cooling and condensing at least a portion of said refrigerant vapor to refrigerant liquid; and passing said condensed refrigerant liquid to said second thermal exchanger.
Claim 2
Dependent Claim 202 words
In an improved process for conditioning a second thermal exchange medium utilizing a compressor based refrigerant cycle wherein refrigerant vapor is compressed, the compressed refrigerant vapor is passed through a first thermal exchanger functioning as a condenser in thermal exchange relation to a first thermal exchange medium cooling and condensing said vapor to a liquid at relatively high temperature and pressure and warming said first thermal exchange medium, the liquid refrigerant is then passed through throttling means, and subsequently is passed through a second thermal exchanger functioning as an evaporator in thermal exchange relation to said second thermal exchange medium, said liquid refrigerant being warmed and vaporized at a relatively low temperature and pressure producing a cooling effect to said second thermal exchange medium, the improvement comprising: passing said refrigerant vapor from said second thermal exchanger of said compressor based refrigerant cycle to a third thermal exchanger functioning as a condenser in thermal exchange relation to a third thermal exchange medium, said third thermal exchange medium supplied to said third thermal exchanger at a temperature to cause cooling and condensing at least a portion of said refrigerant vapor to refrigerant liquid; and passing said condensed refrigerant liquid to said second thermal exchanger.
Claim 3
Dependent Claim 39 words
The process of claim 1 wherein said third thermal exchange medium is supplied to said third thermal exchanger at a temperature below about 10° F. cooler than said second thermal exchange medium after passing through said second thermal exchanger.
Claim 4
Dependent Claim 25 words
The process of claim 1 wherein said third thermal exchange medium is supplied to said third thermal exchanger at a temperature below about 55° F.
Claim 5
Dependent Claim 68 words
In the improved process of claim 1 the additional step of: passing any remaining refrigerant vapor from said third thermal exchanger for compression in said compressor based refrigerant cycle, condensing said refrigerant vapor in said first thermal exchanger of said compressor based refrigerant cycle to refrigerant liquid, and passing said condensed refrigerant liquid through said throttling means to said second thermal exchanger of said compressor based refrigerant cycle.
Claim 6
Dependent Claim 39 words
The process of claim 4 wherein said third thermal exchange medium is supplied to said third thermal exchanger at a temperature below about 10° F. cooler than said second thermal exchange medium after passing through said second thermal exchanger.
Claim 7
Dependent Claim 25 words
The process of claim 4 wherein said third thermal exchange medium is supplied to said third thermal exchanger at a temperature below about 55° F.
Claim 8
Dependent Claim 180 words
In an improved process for conditioning a second thermal exchange medium utilizing a compressor based refrigerant cycle of the type sequentially comprising in a refrigerant loop a refrigerant compressor, a first thermal exchanger condenser in thermal exchange relation to a first thermal exchange medium, a throttling means, and a second thermal exchanger in thermal exchange relation to said second thermal exchange medium, the improvement comprising: passing refrigerant liquid from said second thermal exchanger of said compressor based refrigerant cycle to a third thermal exchanger functioning as an evaporator in thermal exchange relation to a third thermal exchange medium, said third thermal exchange medium supplied to said third thermal exchanger at a temperature to cause warming and evaporation of at least a substantial portion of said refrigerant liquid to a refrigerant vapor; and passing said refrigerant vapor to said second thermal exchanger functioning as a condenser in thermal exchange relation to said second thermal exchange medium cooling and condensing said vapor to a liquid warming said second thermal exchange medium, said compressor, said first thermal exchanger and said throttle being disabled.
Claim 9
Dependent Claim 180 words
In an improved process for conditioning a second thermal exchange medium utilizing a compressor based refrigerant cycle of the type sequentially comprising in a refrigerant loop a refrigerant compressor, a first thermal exchanger condenser in thermal exchange relation to a first thermal exchange medium, a throttling means, and a second thermal exchanger in thermal exchange relation to said second thermal exchange medium, the improvement comprising: passing refrigerant liquid from said second thermal exchanger of said compressor based refrigerant cycle to a third thermal exchanger functioning as an evaporator in thermal exchange relation to a third thermal exchange medium, said third thermal exchange medium supplied to said third thermal exchanger at a temperature to cause warming and evaporation of at least a substantial portion of said refrigerant liquid to a refrigerant vapor; and passing said refrigerant vapor to said second thermal exchanger functioning as a condenser in thermal exchange relation to said second thermal exchange medium cooling and condensing said vapor to a liquid warming said second thermal exchange medium, said compressor, said first thermal exchanger and said throttle being disabled.
Claim 10
Dependent Claim 25 words
The process of claim 7 wherein said third thermal exchange medium is supplied to said third thermal exchanger at a temperature above about 90° F.
Claim 11
Dependent Claim 165 words
In an apparatus for conditioning a second thermal exchange medium, said apparatus comprising in conduit communication and in sequence in a refrigerant loop, a compressor, a first thermal exchanger condenser in thermal exchange relation to a first thermal exchange medium provided from external to said loop, a throttling means, and a second thermal exchanger in thermal exchange relation to said second thermal exchange medium provided from external to said loop, the improvement comprising: a third thermal exchanger in thermal exchange relation to a third thermal exchange medium provided from external to said loop, first conduit means capable of passing said refrigerant from an outlet of said second thermal exchanger to the inlet of said third thermal exchanger, second conduit means capable of passing said refrigerant from an outlet of said third thermal exchanger to an inlet of said second thermal exchagner, and third conduit means capable of passing refrigerant vapor from a vapor outlet of said third thermal exchanger to an inlet of said compressor.
Claim 12
Dependent Claim 165 words
In an apparatus for conditioning a second thermal exchange medium, said apparatus comprising in conduit communication and in sequence in a refrigerant loop, a compressor, a first thermal exchanger condenser in thermal exchange relation to a first thermal exchange medium provided from external to said loop, a throttling means, and a second thermal exchanger in thermal exchange relation to said second thermal exchange medium provided from external to said loop, the improvement comprising: a third thermal exchanger in thermal exchange relation to a third thermal exchange medium provided from external to said loop, first conduit means capable of passing said refrigerant from an outlet of said second thermal exchanger to the inlet of said third thermal exchanger, second conduit means capable of passing said refrigerant from an outlet of said third thermal exchanger to an inlet of said second thermal exchagner, and third conduit means capable of passing refrigerant vapor from a vapor outlet of said third thermal exchanger to an inlet of said compressor.
Claim 13
Dependent Claim 14 words
The apparatus of claim 9 additionally comprising pump means in said first conduit means.
Claim 14
Dependent Claim 14 words
The apparatus of claim 9 additionally comprising pump means in said second conduit means.
Claim 15
Dependent Claim 15 words
The apparatus of claim 9 additionally comprising pressure release means in said third conduit means.
Claim 16
Dependent Claim 28 words
The apparatus of claim 9 additionally comprising chilling means capable of chilling said third thermal exchange medium for passage in thermal exchange relation to said third thermal exchanger.
Claim 17
Dependent Claim 38 words
The apparatus of claim 13 wherein said chilling means is capable of chilling said third thermal exchange medium to a temperature below about 10° F. cooler than said second thermal exchange medium after passing said second thermal exchanger.
Claim 18
Dependent Claim 25 words
The apparatus of claim 13 wherein said chilling means is capable of chilling said third thermal exchange medium to a temperature below about 55° F.
Claim 19
Dependent Claim 28 words
The apparatus of claim 9 additionally comprising heating means capable of warming said third thermal exchange medium for passage in thermal exchange relation to said third thermal exchanger.
Claim 20
Dependent Claim 25 words
The apparatus of claim 16 wherein said heating means is capable of warming said third thermal exchange medium to a temperature above about 90° F.
Claim 21
Dependent Claim 46 words
The apparatus of claim 9 additionally comprising disabling means capable of inactivating refrigerant flow from said third thermal exchanger to said compressor and refrigerant flow from said throttling means to said second thermal exchanger, thereby inactivating said compressor, said first thermal exchanger, and said throttling means.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-03-22 1991-09-21 1992-03-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-22 1995-09-21 1996-03-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-22 1999-09-21 2000-03-22 $7700.00 Window Closed / Lapsed

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