JPH01141982A - Working medium mixture - Google Patents
Working medium mixtureInfo
- Publication number
- JPH01141982A JPH01141982A JP62300081A JP30008187A JPH01141982A JP H01141982 A JPH01141982 A JP H01141982A JP 62300081 A JP62300081 A JP 62300081A JP 30008187 A JP30008187 A JP 30008187A JP H01141982 A JPH01141982 A JP H01141982A
- Authority
- JP
- Japan
- Prior art keywords
- working medium
- mixture
- tetrafluoroethane
- present
- medium mixture
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims abstract description 6
- JQZFYIGAYWLRCC-UHFFFAOYSA-N 1-chloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)(F)Cl JQZFYIGAYWLRCC-UHFFFAOYSA-N 0.000 claims abstract description 6
- CYXIKYKBLDZZNW-UHFFFAOYSA-N 2-Chloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)CCl CYXIKYKBLDZZNW-UHFFFAOYSA-N 0.000 claims abstract description 6
- UMNKXPULIDJLSU-UHFFFAOYSA-N dichlorofluoromethane Chemical compound FC(Cl)Cl UMNKXPULIDJLSU-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229940099364 dichlorofluoromethane Drugs 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 2
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 abstract 2
- CZHYKKAKFWLGJO-UHFFFAOYSA-N dimethyl phosphite Chemical compound COP([O-])OC CZHYKKAKFWLGJO-UHFFFAOYSA-N 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- FWAQVJAOVDYHAF-UHFFFAOYSA-N 1-chloro-1,2,2-trifluoroethane Chemical compound FC(F)C(F)Cl FWAQVJAOVDYHAF-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- KUMNEOGIHFCNQW-UHFFFAOYSA-N diphenyl phosphite Chemical compound C=1C=CC=CC=1OP([O-])OC1=CC=CC=C1 KUMNEOGIHFCNQW-UHFFFAOYSA-N 0.000 description 1
- NFORZJQPTUSMRL-UHFFFAOYSA-N dipropan-2-yl hydrogen phosphite Chemical compound CC(C)OP(O)OC(C)C NFORZJQPTUSMRL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- WSANLGASBHUYGD-UHFFFAOYSA-N sulfidophosphanium Chemical class S=[PH3] WSANLGASBHUYGD-UHFFFAOYSA-N 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- KTFAZNVGJUIWJM-UHFFFAOYSA-N trimethyl(sulfanylidene)-$l^{5}-phosphane Chemical compound CP(C)(C)=S KTFAZNVGJUIWJM-UHFFFAOYSA-N 0.000 description 1
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、冷凍機、ヒートポンプ等に使用し得る新規な
作動媒体混合物に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel working medium mixture that can be used in refrigerators, heat pumps, etc.
［従来技術］
空調、冷凍および冷蔵機器（冷凍サイクル・ヒートポン
プサイクル）、廃熱回収発電（ランキンサイクル）、熱
交換機器（ヒートパイプ）等が実用化ないし試験開発さ
れてい゛る。これらの機器に用いる作動媒体には、水を
はしめプロパンやメタン等の炭化水素類、トリクロロフ
ルオロメタン（ａｌｌ）や、クロロジフルオロメタン（
Ｒ２２）等のフロン類、又はアンモニア等か知られてい
る。[Prior Art] Air conditioning, refrigeration, and refrigeration equipment (refrigeration cycle/heat pump cycle), waste heat recovery power generation (Rankine cycle), heat exchange equipment (heat pipe), etc. have been put into practical use or tested and developed. Working media used in these devices include water, hydrocarbons such as propane and methane, trichlorofluoromethane (all), and chlorodifluoromethane (all).
CFCs such as R22) or ammonia are known.
［発明の解決しようとする問題点］
フロンは毒性か少なく、非可燃性て化学的にも安定であ
り、標準沸点の異なる各種フロンか容易に入手てきるこ
とから、作動媒体としての評価研究が活発に行なわれて
いる。本発明は、熱回収効率、特に、冷凍庫、冷蔵庫、
冷暖房機器、給湯機器あるいは廃熱回収を目的としたヒ
ートポンプシステムの効率か高いフロン類を新規に提供
するものである。[Problems to be solved by the invention] Freon is less toxic, non-flammable, and chemically stable, and various types of fluorocarbons with different standard boiling points are easily available, so evaluation research as a working medium has been conducted. It is actively carried out. The present invention improves heat recovery efficiency, especially in freezers, refrigerators,
This new product provides highly efficient fluorocarbons for heating and cooling equipment, hot water supply equipment, and heat pump systems for the purpose of waste heat recovery.
［問題点を解決するための手段］
本発明はジクロロモノフルオロメタン（Ｒ２１）モノク
ロロテトラフルオロエタンおよびモノクロロトリフルオ
ロエタンの中から選ばれる少なくとも１種とテトラフル
オロエタンとを必須成分とすることを特徴とする作動媒
体混合物に関するものである。[Means for solving the problems] The present invention is characterized in that at least one selected from dichloromonofluoromethane (R21), monochlorotetrafluoroethane, and monochlorotrifluoroethane and tetrafluoroethane are essential components. The present invention relates to a working medium mixture.
本発明におけるテトラフルオロエタンには、１．１，２
．２−テトラフルオロエタン（Ｒ１：１４）と１．１゜
１．２−テトラフルオロエタン（Ｒ１３４ａ）の２種類
の異性体か知られているか、互いに物性か類似している
ため、これらを単独て用いてもよく、またこれらの混合
物を用いてもよい。モノクロロテトラフルオロエタンに
は、モノクロロー■。Tetrafluoroethane in the present invention includes 1.1,2
．． Are the two isomers 2-tetrafluoroethane (R1:14) and 1.1゜1.2-tetrafluoroethane (R134a) known?Since their physical properties are similar to each other, they cannot be considered alone. or a mixture thereof may be used. For monochlorotetrafluoroethane, monochloro■.
２．２．２−テトラフルオロエタン（Ｒ１２４）と１−
クロロ−１，１，２，２−テトラフルオロエタン（Ｒ１
２４ａ）の２種類の異性体か知られているか、互いに物
性か類似しているため、これらを単独で用いてもよく、
またこれらの混合物を用いてもよい。2.2.2-tetrafluoroethane (R124) and 1-
Chloro-1,1,2,2-tetrafluoroethane (R1
Since the two types of isomers of 24a) are known or have similar physical properties to each other, they may be used alone,
A mixture of these may also be used.
また、モノクロロトリフルオロエタンには、１−クロロ
−１，２，２−トリフルオロエタン（Ｒ１３３）と１−
クロロ−２，２，２−）−リフルオロエタン（Ｒ１：１
３ａ）およびｌ−クロロ−１，１，２−）−リフルオロ
エタン（Ｒ１：１３ｂ）の３種類の異性体か知られてい
るか、互いに物性か類似しているため、これらを単独で
用いてもよく、またこれらの混合物を用いてもよい。以
下の説明においてはＲ１：１４ａとＲ２１，Ｒ１３４ａ
、 Ｒ１２４およびＲ１：１４ａとＲ１３３ａの各作動
媒体混合物を使用する例を示す。In addition, monochlorotrifluoroethane includes 1-chloro-1,2,2-trifluoroethane (R133) and 1-chlorotrifluoroethane.
Chloro-2,2,2-)-lifluoroethane (R1:1
Since the three isomers of 3a) and l-chloro-1,1,2-)-lifluoroethane (R1:13b) are known and have similar physical properties, they can be used alone. or a mixture thereof may be used. In the following explanation, R1:14a and R21, R134a
, R124 and R1: Examples using working medium mixtures of 14a and R133a are shown.
以下、本発明の作動媒体混合物（以下単に作動媒体とい
うことかある。）を用いた冷凍サイクルシステムのフロ
ーシートを示す第１図に従って本発明の詳細な説明する
。第１図の１は圧縮機、２は凝縮器、３，３°は負荷流
体用配管、４は減圧装置、５は蒸発器、６，６′は熱源
流体用配管を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIG. 1, which shows a flow sheet of a refrigeration cycle system using a working medium mixture (hereinafter also simply referred to as working medium) of the present invention. In FIG. 1, 1 is a compressor, 2 is a condenser, 3 and 3° are load fluid pipes, 4 is a pressure reducing device, 5 is an evaporator, and 6 and 6' are heat source fluid pipes.
ｉ１図に示す冷凍サイクルシステムにおいて作動媒体は
圧縮機ｌて圧縮された後、凝縮器２に導かれ、該凝縮器
２中て管３より導入される負荷流体により冷却されて凝
縮する。一方、負荷流体は凝縮器２中て逆に加熱され管
３′を経て負荷加熱に供される。つきに凝縮した作動媒
体は減圧装ａ４により減圧された後、蒸発器５に導かれ
、該蒸発器５に導かれ、該蒸発器５中て管６より導入さ
れ管６′から排出される熱源流体により加熱された後、
再び圧縮機ｌに吸引され上記のサイクルを繰り返す。一
方、熱源流体は蒸発器５中で逆に冷却され、管６“を経
て冷却に供される。In the refrigeration cycle system shown in Fig. 1, the working medium is compressed by a compressor 1 and then led to a condenser 2, where it is cooled and condensed by a load fluid introduced from a pipe 3. On the other hand, the load fluid is reversely heated in the condenser 2 and passed through the pipe 3' for load heating. The condensed working medium is reduced in pressure by the pressure reducing device a4, and then guided to the evaporator 5, where it is introduced into the evaporator 5 through a tube 6 and is discharged through the tube 6' as a heat source. After being heated by the fluid,
It is sucked into the compressor 1 again and the above cycle is repeated. On the other hand, the heat source fluid is reversely cooled in the evaporator 5 and is provided for cooling through the tube 6''.
第２図および第３図は第１図に示す冷凍サイクルシステ
ムにおける作動媒体混合物のサイクルを圧力−エンタル
ピー線図上に記入したものである。作動媒体の飽和蒸気
を断熱圧縮した場合、湿り状態になるものを第２図に、
乾き状態になるものを第３図に示す。2 and 3 are pressure-enthalpy diagrams showing the cycles of the working medium mixture in the refrigeration cycle system shown in FIG. 1. Figure 2 shows what becomes wet when the working medium, saturated steam, is compressed adiabatically.
Figure 3 shows what is in a dry state.
第１図の圧縮機による作動媒体の変化は第２図および第
３図の符合８か６９あるいは１３から１４の変化に、凝
縮器による作動媒体の変化は９→１０→１１あるいは１
４→１５→１６→１７の変化に、減圧装置による作動媒
体の変化は１１から１２あるいは１７から１８の変化に
、蒸発器による作動媒体の変化は１２から８あるいは１
８から１３の変化にそれぞれ対応する。The change in the working medium due to the compressor in Figure 1 is the change from 8 or 69 or 13 to 14 in Figures 2 and 3, and the change in the working medium due to the condenser is 9→10→11 or 1.
The change in working medium due to the pressure reducing device is from 11 to 12 or from 17 to 18, and the change in working medium due to the evaporator is from 12 to 8 or 1.
This corresponds to the change from 8 to 13, respectively.
本発明の作動媒体混合物を用いた第１図の冷凍サイクル
システムの運転条件として蒸発器における作動媒体の蒸
発器り温度（符合７あるいは１３の温度。以下、蒸発温
度という）と凝縮器における作動媒体の凝縮器めの温度
（符合９あるいは１５の温度。以下、凝縮温度という）
を設定した。第１表から第６表に本発明の作動媒体混合
物を用いた上記の冷凍サイクルシステムにおける成績係
数および圧縮機単位容積当りの冷凍能力を比較例ととも
に記す。The operating conditions of the refrigeration cycle system shown in FIG. 1 using the working medium mixture of the present invention are the evaporator temperature of the working medium in the evaporator (temperature of code 7 or 13, hereinafter referred to as evaporation temperature) and the working medium in the condenser. temperature of the condenser (temperature with code 9 or 15; hereinafter referred to as condensing temperature)
It was set. Tables 1 to 6 show the coefficient of performance and refrigeration capacity per unit volume of the compressor in the above-mentioned refrigeration cycle system using the working medium mixture of the present invention, along with comparative examples.
表から理解されるように、本発明の作動媒体混合物の一
構成成分であるＲ １３４ａは、Ｒ２１゜Ｒ１２４およ
びＲ１３３ａに比べ圧縮機単位容積当りの冷凍能力が高
いという長所を有しているものの、成績係数か低いとい
う欠点を有している。As can be seen from the table, R134a, which is a component of the working medium mixture of the present invention, has the advantage of having a higher refrigerating capacity per unit volume of the compressor than R21°R124 and R133a. It has the disadvantage of a low coefficient of performance.
一方、 Ｒ２１，Ｒ１２４およびＲ１３３ａは、成績係
数の点てはＲ１３４ａに比べ優れているものの、圧縮機
単位容積当りの冷凍能力か能力か低いという欠点を有し
ている。すなわち、本発明の作動媒体混合物を用いるこ
とにより、各々の欠点を改善し、かつ長所を生かすこと
かでき、極めて有効であることかわかる。すなわち１本
発明の作動媒体混合混合物を使用することにより、Ｒ！
３４ａの成績係数およびＲ２１，Ｒ１２４およびＲ１３
３ａの冷凍能力を大きく改善することかできる。特に、
Ｒ１３４ａとＲ２１の混合モル比か約ｌ０＝９０、 Ｒ
！３４ａ／ Ｒ１２４の混合モル比か約２０：８０およ
びＲ１３４ａとＲ＋３：ｌａの混合モル比か約２０ 二
８０の各作動媒体混合物は、成績係数の改善の割合か極
めて高く、極めて有効であるといえる。On the other hand, although R21, R124 and R133a are superior to R134a in terms of coefficient of performance, they have the disadvantage of low refrigerating capacity per unit volume of the compressor. In other words, it can be seen that the use of the working medium mixture of the present invention is extremely effective since it is possible to improve each of the disadvantages and take advantage of the advantages. That is, by using the working medium mixture of the present invention, R!
34a coefficient of performance and R21, R124 and R13
The refrigerating capacity of 3a can be greatly improved. especially,
The mixing molar ratio of R134a and R21 is about 10=90, R
! The working medium mixtures with a mixing molar ratio of 34a/R124 of about 20:80 and a mixing molar ratio of R134a and R+3:la of about 20:280 have extremely high improvement rates in the coefficient of performance and can be said to be extremely effective. .
本発明の作動媒体混合物は低温〜高温分野の空調、冷凍
および冷蔵を目的とし冷凍サイクルの応用する場合に特
に有効であるか、ランキンサイクルなどのその他各種の
熱回収技術の作動媒体としても使用することもてきる。The working medium mixture of the present invention is particularly effective in refrigeration cycle applications for air conditioning, refrigeration and refrigeration in low to high temperature fields, or can also be used as a working medium in various other heat recovery techniques such as the Rankine cycle. It can also happen.
本発明の作動媒体混合物は熱安定性か優れており、通常
の使用条件においては安定剤を必要としないが、苛酷な
使用条件のため熱安定性の向とか必要な場合には、ジメ
チルホスファイ、ジイソプロピルホスファイト、ジフェ
ニルホスファイ１へ等のホスファイト系化合物、または
チオホスファイト系化合物、あるいはトリフエノキシホ
スフィンサルファイド、トリメチルホスフィンサルファ
イド等のホスフィンサルファイド系化合物、その他りリ
シシルエーテル類等の安定剤を作動媒体１００重量部に
対し、１重量部前後の少量添加すればよい。The working fluid mixture of the present invention has excellent thermal stability and does not require a stabilizer under normal conditions of use, but if thermal stability is required due to severe conditions of use, dimethyl phosphide may be used. , diisopropyl phosphite, diphenyl phosphite 1, etc., or thiophosphite compounds, or phosphine sulfide compounds such as triphenoxyphosphine sulfide, trimethylphosphine sulfide, and other lysicyl ethers. The agent may be added in a small amount of about 1 part by weight to 100 parts by weight of the working medium.
［発ＩＪＪの効果コ
本発明の作動媒体混合物は、特に冷凍サイクル効率すな
わち冷凍、加熱効率に優れ、テトラフルオロエタンとジ
クロロモノフルオロメタン、モノクロロテトラフルオロ
エタンおよびモノクロロトリフルオロエタンに比し、大
幅な数片か認られる。[Effects of IJJ] The working medium mixture of the present invention has particularly excellent refrigeration cycle efficiency, that is, freezing and heating efficiency, and has significantly higher A few pieces are recognized.
第１図は本発明の１実施例を説明するための冷凍サイク
ルのフローシト、第２図および第３図は本発明の作動媒
体混合物を作動媒体として用いたサイクルを圧力−エン
タルピー線図に記入した図である。
Ｐ １ 図
第 ２ 侶 躬 ３ 図
工ンクルヒ０ エンタ几ヒ
。Fig. 1 is a flow sheet of a refrigeration cycle for explaining one embodiment of the present invention, and Figs. 2 and 3 are pressure-enthalpy diagrams of a cycle using the working medium mixture of the present invention as the working medium. It is a diagram. P 1 Diagram 2 Companion 3 Diagram number 0 Enta 几hi.
Claims (1)
ルオロエタンおよびモノクロロトリフルオロエタンの中
から選ばれる少なくとも１種とテトラフルオロエタンと
を必須成分とすることを特徴とする作動媒体混合物。 ２、ジクロロモノフルオロメタン、モノクロロテトラフ
ルオロエタンおよびモノクロロトリフルオロエタンの中
から選ばれる少なくとも１種とテトラフルオロエタンの
混合モル比が１：９９〜９９：１である特許請求の範囲
第１項記載の作動媒体混合物。[Scope of Claims] 1. A working medium mixture comprising at least one selected from dichloromonofluoromethane, monochlorotetrafluoroethane, and monochlorotrifluoroethane and tetrafluoroethane as essential components. 2. Claim 1, wherein the mixing molar ratio of at least one selected from dichloromonofluoromethane, monochlorotetrafluoroethane, and monochlorotrifluoroethane and tetrafluoroethane is 1:99 to 99:1. working medium mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62300081A JPH01141982A (en) | 1987-11-30 | 1987-11-30 | Working medium mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62300081A JPH01141982A (en) | 1987-11-30 | 1987-11-30 | Working medium mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141982A true JPH01141982A (en) | 1989-06-02 |
Family
ID=17880474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62300081A Pending JPH01141982A (en) | 1987-11-30 | 1987-11-30 | Working medium mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141982A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320388A (en) * | 1989-06-16 | 1991-01-29 | Sanyo Electric Co Ltd | Refrigerant composition |
| US5425890A (en) * | 1994-01-11 | 1995-06-20 | Apd Cryogenics, Inc. | Substitute refrigerant for dichlorodifluoromethane refrigeration systems |
| US5512197A (en) * | 1990-03-23 | 1996-04-30 | The California Institute Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| WO1996037571A1 (en) * | 1995-05-24 | 1996-11-28 | Intercool Energy Corporation | Mixed gas refrigerant |
-
1987
- 1987-11-30 JP JP62300081A patent/JPH01141982A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320388A (en) * | 1989-06-16 | 1991-01-29 | Sanyo Electric Co Ltd | Refrigerant composition |
| US5512197A (en) * | 1990-03-23 | 1996-04-30 | The California Institute Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| US5523011A (en) * | 1990-03-23 | 1996-06-04 | California Institute Of Technology | Near azeotropic mixture substitute |
| US5728314A (en) * | 1990-03-23 | 1998-03-17 | California Inst. Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| US5425890A (en) * | 1994-01-11 | 1995-06-20 | Apd Cryogenics, Inc. | Substitute refrigerant for dichlorodifluoromethane refrigeration systems |
| WO1995018846A1 (en) * | 1994-01-11 | 1995-07-13 | Intercool Energy Corporation | Mixed gas refrigerant |
| US5622644A (en) * | 1994-01-11 | 1997-04-22 | Intercool Energy | Mixed gas R-12 refrigeration apparatus |
| AU681757B2 (en) * | 1994-01-11 | 1997-09-04 | Intercool Distribution, Llc | Mixed gas refrigerant |
| WO1996037571A1 (en) * | 1995-05-24 | 1996-11-28 | Intercool Energy Corporation | Mixed gas refrigerant |
| AU700721B2 (en) * | 1995-05-24 | 1999-01-14 | Intercool Distribution, Llc | Mixed gas refrigerant |
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