JPH086976B2 - Heating and cooling machine - Google Patents
Heating and cooling machineInfo
- Publication number
- JPH086976B2 JPH086976B2 JP61255071A JP25507186A JPH086976B2 JP H086976 B2 JPH086976 B2 JP H086976B2 JP 61255071 A JP61255071 A JP 61255071A JP 25507186 A JP25507186 A JP 25507186A JP H086976 B2 JPH086976 B2 JP H086976B2
- Authority
- JP
- Japan
- Prior art keywords
- fan
- refrigerant
- burner
- heat exchanger
- heating
- 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.)
- Expired - Lifetime
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は圧縮機,減圧機構,室外ユニット,室内ユニ
ット等を環状に冷媒配管した暖冷房装置において、特に
室外ユニットにバーナ付の冷媒加熱器を設けて暖房する
様にした暖冷房機に関するものである。Description: TECHNICAL FIELD The present invention relates to a heating / cooling device in which a compressor, a pressure reducing mechanism, an outdoor unit, an indoor unit, etc. are annularly piped with a refrigerant, and in particular, an outdoor unit is provided with a refrigerant heater with a burner. It relates to a heating / cooling machine that is designed to be heated.
従来の技術 従来のヒートポンプ式暖冷房装置は暖房運転時外気温
度が低下するにつれて冷媒の蒸発温度が低下し、その結
果、凝縮器への冷媒循環量が減少し暖房能力が低下する
という欠点があった。この外気温度低下時の暖房能力を
補うために暖房時、大気熱からの冷媒の吸熱のかわりに
燃焼熱により冷媒を加熱し暖房能力低下を防止させる方
式が知られている。この方式を第2図に示す。1は圧縮
機,2は四方弁、3はファン付室外熱交換器、4は逆止
弁、5は減圧装置、6は室内熱交換器であり、ファン付
室外熱交換器3と並列に冷媒加熱器7を設けたサイクル
構成となっており、暖房時は実線矢印,冷房時は破線矢
印の方向へ冷媒は流れる。なお8,9は電磁弁である。2. Description of the Related Art The conventional heat pump heating / cooling system has a drawback that the evaporation temperature of the refrigerant decreases as the outside air temperature decreases during heating operation, and as a result, the refrigerant circulation amount to the condenser decreases and the heating capacity decreases. It was In order to supplement the heating capacity when the outside air temperature decreases, a method is known in which during heating, the refrigerant is heated by combustion heat instead of heat absorption of the refrigerant from atmospheric heat to prevent the heating capacity from decreasing. This method is shown in FIG. 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger with a fan, 4 is a check valve, 5 is a pressure reducing device, 6 is an indoor heat exchanger, and a refrigerant is provided in parallel with the outdoor heat exchanger with a fan 3. The heater 7 is provided in a cycle configuration, and the refrigerant flows in the direction of a solid arrow during heating and in the direction of a broken arrow during cooling. In addition, 8 and 9 are solenoid valves.
以上の様な構成において、暖房運転時には冷媒加熱器
7で加熱蒸発した冷媒ガスを圧縮機1を運転して室内熱
交換器6へ送り、凝縮液化した冷媒を冷媒加熱器に帰流
させる。また、冷房運転時には、圧縮機1から吐出冷媒
ガスをファン付室外熱交換器3に流して凝縮液化させた
冷媒液を減圧装置5を介して室内熱交換器6へ送り冷房
を行ない、蒸発した冷媒ガスを圧縮機1で吸入するよう
にしていた。In the above-described configuration, during heating operation, the refrigerant gas heated and evaporated in the refrigerant heater 7 operates the compressor 1 to be sent to the indoor heat exchanger 6, and the condensed and liquefied refrigerant is returned to the refrigerant heater. Further, during the cooling operation, the refrigerant gas discharged from the compressor 1 is passed through the fan-equipped outdoor heat exchanger 3 to be condensed and liquefied, and the refrigerant liquid is sent to the indoor heat exchanger 6 via the pressure reducing device 5 for cooling and evaporation. The refrigerant gas was sucked by the compressor 1.
発明が解決しようとする問題点 しかしながら上記の様な構成においては暖房運転時、
冷媒加熱器7で冷媒をバーナで加熱するため石油又はガ
ス等の燃料の他に圧縮機1を運転するために電気代が必
要となり運転維持費が高くなるという問題点を有してい
た。Problems to be Solved by the Invention However, in the above-described configuration, during heating operation,
Since the refrigerant heater 7 heats the refrigerant by the burner, in addition to fuel such as oil or gas, an electric bill is required to operate the compressor 1, which causes a problem of high operation and maintenance costs.
又、冷房運転時には冷媒加熱器7に利用せずファン付
室外熱交換器3のみに冷媒を流して凝縮器として使用す
る構成のため、ファン付室外熱交換器3のみで冷媒の凝
縮液化を行なうことになり、それだけの大きさの容量を
もつファン付室外熱交換器3となり、その小型化が出来
ず、ファン付室外熱交換器の小型軽量化および低コスト
化に対して問題点を有していた。Further, during the cooling operation, the refrigerant is not used in the refrigerant heater 7 and is used as a condenser by flowing the refrigerant only to the fan-equipped outdoor heat exchanger 3, so that the refrigerant is condensed and liquefied only by the fan-equipped outdoor heat exchanger 3. Therefore, the outdoor heat exchanger with fan 3 having such a large capacity cannot be miniaturized, and there is a problem in reducing the size, weight and cost of the outdoor heat exchanger with fan. Was there.
本発明はかかる従来の問題点を解消するもので、暖房
運転時には圧縮機を運転せず冷媒加熱用のバーナの燃料
代のみで運転維持費の安価な暖房をすると共に、冷暖房
運転時にはバーナ付冷媒加熱器を利用してプリコンデン
サとしての機能を得ることによりファン付室外熱交換器
を小型軽量化して安価な暖冷房機を構成することを目的
にしたものである。The present invention solves the above-mentioned conventional problems. In heating operation, the compressor is not operated and only the fuel cost of the burner for heating the refrigerant is used to provide low-cost heating for operation and maintenance costs. By using a heater to obtain a function as a pre-condenser, the outdoor heat exchanger with a fan can be reduced in size and weight, and an inexpensive heating / cooling machine can be configured.
問題点を解決するための手段 上記問題点を解決するために本発明の暖冷房機は、圧
縮機、バーナ付冷媒加熱器、室外ファンを有するファン
付室外熱交換器、フロート弁内蔵受液器、減圧装置から
なる室外ユニットと、室内ファン付室内熱交換器を設け
た室内ユニットとを環状に冷媒配管接続して暖冷房回路
を形成し、暖房運転時はバーナ付冷媒加熱器、ファン付
室内熱交換器、フロート弁内蔵受液器の順に、冷房運転
時は圧縮機、バーナ付冷媒加熱器、ファン付室外熱交換
器、減圧装置、ファン付室内熱交換器の順に冷媒が流れ
る冷媒回路を構成し、冷房の運転時に前記バーナ付冷媒
加熱器のバーナ燃焼用ファンおよび前記室外ファンを運
転し、暖房運転時に前記バーナ付冷媒加熱器のバーナ燃
焼用ファンを運転するものである。Means for Solving the Problems In order to solve the above problems, a heating / cooling machine of the present invention is a compressor, a refrigerant heater with a burner, an outdoor heat exchanger with a fan having an outdoor fan, and a liquid receiver with a built-in float valve. , An outdoor unit consisting of a decompressor and an indoor unit with an indoor fan-equipped indoor heat exchanger are connected to form a heating and cooling circuit by annularly connecting refrigerant pipes, and during heating operation, a refrigerant heater with burner and a fan-equipped room In order of heat exchanger, receiver with built-in float valve, during cooling operation, compressor, burner-equipped refrigerant heater, fan-equipped outdoor heat exchanger, decompression device, fan-equipped indoor heat exchanger In this configuration, the burner combustion fan and the outdoor fan of the burner-equipped refrigerant heater are operated during cooling operation, and the burner combustion fan of the burner-equipped refrigerant heater is operated during heating operation.
作用 本発明は上記した構成により、暖房運転時にはバーナ
付冷媒加熱器で冷媒を加熱蒸発させることにより冷媒の
蒸発圧力が上昇するのでこれを利用して蒸発した冷媒ガ
スをファン付室内熱交換器へ圧送することにより従来の
様に圧縮機を運転することが不用になる。ファン付室内
熱交換器に流入し放熱後の液冷媒はフロート弁内蔵受液
器に流入し、フロート弁が作動しバーナ付冷媒加熱器の
蒸発力がフロート弁受液器内に作用して受液器内の冷媒
液をバーナ付冷媒加熱器に帰流させるように冷媒循環系
路を構成する。Effect The present invention has the above-described configuration, and during heating operation, the evaporation pressure of the refrigerant is increased by heating and evaporating the refrigerant by the refrigerant heater with a burner. Therefore, the evaporation gas of the refrigerant is utilized to the indoor heat exchanger with a fan. By pumping, it becomes unnecessary to operate the compressor as in the past. The liquid refrigerant that has flowed into the indoor heat exchanger with a fan and has released heat flows into the receiver with a built-in float valve, the float valve operates, and the evaporating power of the refrigerant heater with a burner acts on the inside of the float valve receiver to receive it. A refrigerant circulation path is configured to return the refrigerant liquid in the liquid container to the refrigerant heater with a burner.
又、冷房運転時には、圧縮機からの吐出冷媒ガスをバ
ーナ付冷媒加熱器からファン付室外熱交換器へ流すので
バーナ付冷媒加熱器のバーナを冷房運転停止させ、バー
ナ燃焼用ファンを運転することによりバーナ付冷媒加熱
器は放熱作用を行い、プリコンデンサとして作用するこ
とになる。つまり、バーナ付冷媒加熱器を圧縮機からの
高温吐出冷媒ガスが流れる時、放熱して冷媒は冷やされ
一部分は凝縮作用を行うのである。この様に一部分凝縮
した冷媒をファン付室外熱交換器に流して完全に凝縮液
化すればよいのでファン付室外熱交換器はバーナ付冷媒
加熱器で部分的に凝縮液化する量程、熱交換量を少なく
出来るのでファン付室外熱交換器を小型軽量にして安価
にすることができることになる。Also, during cooling operation, the refrigerant gas discharged from the compressor flows from the refrigerant heater with burner to the outdoor heat exchanger with fan, so the cooling operation of the burner of the refrigerant heater with burner should be stopped and the burner combustion fan should be operated. As a result, the refrigerant heater with a burner performs a heat radiation action and acts as a pre-condenser. That is, when the high-temperature discharge refrigerant gas from the compressor flows through the burner-equipped refrigerant heater, heat is dissipated, the refrigerant is cooled, and a part of the refrigerant condenses. It is only necessary to flow the partially condensed refrigerant to the fan-equipped outdoor heat exchanger to completely condense and liquefy it. Since the number can be reduced, the outdoor heat exchanger with a fan can be made smaller and lighter and cheaper.
実 施 例 以下、本発明の実施例を添付図面にもとづいて説明す
る。EXAMPLES Examples of the present invention will be described below with reference to the accompanying drawings.
第1図において10は室外ユニット、11は室内ユニッ
ト、12,13は冷媒配管である。室外ユニット10におい
て、14は圧縮機、15はバーナ付冷媒加熱器、1はファン
付室外熱交換器、17はフロート弁内蔵受液器、18は減圧
装置である。又、19は圧縮機14の吐出管に設けた第1逆
止弁、20は圧縮機14の吸入管に設けた第1電磁弁、21は
アキュムレータ、22は圧縮機5の吐出管と吸入管を結ぶ
管に設けた第2電磁弁、23はバーナ付冷媒加熱器15とフ
ァン付室外熱交換器16の間に設けた第3電磁弁、24はフ
ァン付室外熱交換器16とフロート弁内蔵受液器17との間
に設けた第2逆止弁、25はフロート弁内蔵受液器17とバ
ーナ付冷媒加熱器15との間に設けた第3逆止弁、26は第
4逆止弁、27はバーナ燃焼用ファン、28は室外ファンで
あり、29はバーナ用ファンを制御する制御装置である。
又、室内ユニット12において、30はファン付室内熱交換
器、31は室内ファンである。In FIG. 1, 10 is an outdoor unit, 11 is an indoor unit, and 12 and 13 are refrigerant pipes. In the outdoor unit 10, 14 is a compressor, 15 is a refrigerant heater with a burner, 1 is an outdoor heat exchanger with a fan, 17 is a liquid receiver with a built-in float valve, and 18 is a decompression device. Further, 19 is a first check valve provided in the discharge pipe of the compressor 14, 20 is a first solenoid valve provided in the suction pipe of the compressor 14, 21 is an accumulator, 22 is a discharge pipe and a suction pipe of the compressor 5. Second solenoid valve provided on the pipe connecting 23, 23 is a third solenoid valve provided between the refrigerant heater 15 with burner and the outdoor heat exchanger 16 with fan, and 24 is the outdoor heat exchanger 16 with fan and built-in float valve A second check valve provided between the receiver 17 and the liquid receiver 17, a third check valve 25 provided between the receiver 17 with a built-in float valve and the refrigerant heater 15 with a burner, and 26 a fourth check valve. A valve, 27 is a burner combustion fan, 28 is an outdoor fan, and 29 is a control device for controlling the burner fan.
Further, in the indoor unit 12, 30 is an indoor heat exchanger with a fan, and 31 is an indoor fan.
以上の様な構成において暖房の場合の冷媒循環系路を
実線で、冷房の場合の冷媒循環系路を破線で示す。In the above-mentioned configuration, the refrigerant circulation system path for heating is shown by a solid line, and the refrigerant circulation system path for cooling is shown by a broken line.
まず暖房運転時には、バーナ付冷媒加熱器15のバーナ
とバーナ燃焼用ファン27を運転すると冷媒は加熱されて
蒸発し蒸発圧力が上昇する。従ってバーナ付冷媒加熱器
15内の冷媒ガスは圧送されて開成している第2電磁弁22
から冷媒管12を経てファン付室内熱交換器30に流入す
る。室内ファン31の運転で暖房することにより冷媒は凝
縮液化した後冷媒配管13から第4逆支弁26を経てフロー
ト弁内蔵受液器17にたまる。フロート弁内蔵受液器17内
の液面が上昇するとフロート弁が作動し、バーナ付冷媒
加熱器15の蒸発圧力がフロート弁内蔵受液器17内に作用
するので冷媒液は第3逆支弁25からバーナ付冷媒加熱器
15へと押し込まれ帰流する。この時、第1電磁弁20,第
3電磁弁23は閉成されている。以上暖房冷媒循環系路に
示す様に、圧縮機14は運転停止状態であり、圧縮機14の
運転用電気代は不用でバーナ付冷媒加熱器15のバーナ燃
料代のみで安価な暖房が得られる。First, during the heating operation, when the burner of the burner-equipped refrigerant heater 15 and the burner combustion fan 27 are operated, the refrigerant is heated and evaporated, and the evaporation pressure rises. Therefore, refrigerant heater with burner
The second solenoid valve 22 in which the refrigerant gas in 15 is pumped and opened.
Through the refrigerant pipe 12 into the fan-equipped indoor heat exchanger 30. The refrigerant is condensed and liquefied by heating by the operation of the indoor fan 31, and then accumulated in the float valve built-in receiver 17 from the refrigerant pipe 13 through the fourth check valve 26. When the liquid level in the receiver with built-in float valve 17 rises, the float valve operates and the evaporation pressure of the refrigerant heater with burner 15 acts inside the receiver with built-in float valve 17, so that the refrigerant liquid is the third reverse support valve 25. From refrigerant heater with burner
It is pushed into 15 and returns. At this time, the first solenoid valve 20 and the third solenoid valve 23 are closed. As shown in the heating refrigerant circulation system above, the compressor 14 is in the operation stop state, the operating electricity cost of the compressor 14 is unnecessary, and inexpensive heating can be obtained only by the burner fuel cost of the refrigerant heater with burner 15. .
他方、冷房運転時には圧縮機14の運転により高温高圧
の吐出冷媒ガスは第1逆止弁19を通り、バーナ付冷媒加
熱器15から第3電磁弁23を経てファン付室外熱交換器16
に流入する。この時バーナ付冷媒加熱器15のバーナは停
止し、バーナ燃焼用ファン27は運転されているので、バ
ーナ付冷媒加熱器15でも放熱されることにより吐出冷媒
ガスは冷媒され一部凝縮することによりバーナ付冷媒加
熱器15はプリコンデンサとして機能することになる。フ
ァン付室外熱交換器16はバーナ付冷媒加熱器15がプリコ
ンデンサとして作用するのでそれだけ小型軽量化されて
いる。室外ファン28の運転によりファン付室外熱交換器
16で完全に凝縮液化した冷媒液は第2逆止弁24から減圧
装置18を経て冷媒配管13からファン付室内熱交換器30に
流入する。室内ファン31の運転で冷房することにより冷
媒は蒸発した後、冷媒配管12,第1電磁弁20,アキュムレ
ータ21を経て圧縮機14に吸入され帰流する。この時、第
2電磁弁22は閉成されている。On the other hand, during the cooling operation, the high-temperature and high-pressure discharged refrigerant gas passes through the first check valve 19 by the operation of the compressor 14, passes from the refrigerant heater with burner 15 to the third electromagnetic valve 23, and the outdoor heat exchanger with fan 16
Flow into. At this time, the burner of the refrigerant heater with burner 15 is stopped and the burner combustion fan 27 is operating, so that the refrigerant heater with burner 15 also radiates heat so that the discharged refrigerant gas is partially condensed by the refrigerant. The refrigerant heater with a burner 15 will function as a pre-condenser. The outdoor heat exchanger 16 with a fan is made smaller and lighter because the refrigerant heater with a burner 15 acts as a pre-condenser. Outdoor heat exchanger with fan by operating the outdoor fan 28
The refrigerant liquid completely condensed and liquefied in 16 flows from the second check valve 24, the pressure reducing device 18, and the refrigerant pipe 13 into the fan-equipped indoor heat exchanger 30. The refrigerant is evaporated by cooling by the operation of the indoor fan 31, and then the refrigerant is sucked into the compressor 14 via the refrigerant pipe 12, the first electromagnetic valve 20, and the accumulator 21 and returns. At this time, the second solenoid valve 22 is closed.
以上の様に冷房運転時にはバーナ燃焼用ファン27を運
転しているバーナ付冷媒加熱器15へ圧縮機14からの高温
吐出ガスを流すことによりプリコンデンサとして作用す
るので、ファン付室外熱交換器16を小型軽量化しても十
分な冷房運転を行うことができる。As described above, during the cooling operation, the hot discharge gas from the compressor 14 is caused to flow to the burner-equipped refrigerant heater 15 which is operating the burner combustion fan 27, thereby acting as a pre-condenser. Even if the size and size are reduced, sufficient cooling operation can be performed.
発明の効果 以上の様な本発明の暖冷房機によれば次の様な効果が
得られる。Effects of the Invention According to the heating / cooling machine of the present invention as described above, the following effects can be obtained.
(1) 圧縮機,バーナ付冷媒加熱器,ファン付室外熱
交換器,フロート弁内蔵受液器,減圧装置からなる室外
ユニットとファン付室内熱交換器を設けた室内ユニット
からなり暖房運転時はバーナ付冷媒加熱器で加熱蒸発し
た冷媒ガスをファン付室内熱交換器へ圧送し凝縮液化し
た後に冷媒液をフロート弁内蔵受液器を介してバーナ付
冷媒加熱器に帰流する冷媒循環系路を構成しているので
暖房運転時に従来の様な圧縮機の運転を必要とせず電気
代のない安価な運転維持費で暖房が得られる。(1) Compressor, refrigerant heater with burner, outdoor heat exchanger with fan, receiver with built-in float valve, decompressor outdoor unit and indoor unit with fan heat exchanger Refrigerant circulation system line that returns the refrigerant liquid to the burner-equipped refrigerant heater via the receiver with built-in float valve after the refrigerant gas heated and evaporated by the burner-equipped refrigerant heater is pumped to the fan-equipped indoor heat exchanger and condensed and liquefied. As a result, the heating does not require the operation of the conventional compressor during heating operation, and heating can be obtained at low operation and maintenance costs without electricity costs.
(2) 又、冷房運転時には圧縮機からの高温吐出冷媒
ガスをバーナ燃焼用ファンを運転しているバーナ付冷媒
加熱器から室外ファンを運転しているファン付室外熱交
換器へ流し、完全凝縮液化した冷媒を減圧装置を経て、
ファン付室内熱交換器,圧縮機へと帰流させる冷媒循環
系路を構成しているのでバーナ付冷媒加熱器がプリコン
デンサとして作用し、ファン付室外熱交換器の小型軽量
化および低コスト化が可能となる。(2) During cooling operation, the high-temperature refrigerant gas discharged from the compressor flows from the refrigerant heater with burner operating the fan for burner combustion to the outdoor heat exchanger with fan operating the outdoor fan, and complete condensation is achieved. The liquefied refrigerant is passed through a decompression device,
Since the indoor heat exchanger with fan and the refrigerant circulation path that returns to the compressor are configured, the refrigerant heater with burner acts as a pre-condenser, reducing the size and weight of the outdoor heat exchanger with fan and lowering the cost. Is possible.
第1図は本発明の一実施例による暖冷房機の回路構成
図、第2図は従来の暖冷房機の全体構成図である。 10……室外ユニット、11……室内ユニット、14……圧縮
機、15……バーナ付冷媒加熱器、16……ファン付室外熱
交換器、17……フロート弁内蔵受液器、18……減圧装
置、27……バーナ燃焼用ファン、29……制御装置、30…
…ファン付室内熱交換器。FIG. 1 is a circuit configuration diagram of a heating / cooling machine according to an embodiment of the present invention, and FIG. 2 is an overall configuration diagram of a conventional heating / cooling machine. 10 …… outdoor unit, 11 …… indoor unit, 14 …… compressor, 15 …… refrigerant heater with burner, 16 …… outdoor heat exchanger with fan, 17 …… receiver with built-in float valve, 18 …… Pressure reducing device, 27 ... Burner combustion fan, 29 ... Control device, 30 ...
… Indoor heat exchanger with fan.
Claims (1)
を有するファン付室外熱交換器、フロート弁内蔵受液
器、減圧装置からなる室外ユニットと、室内ファンを有
するファン付室内熱交換器を設けた室内ユニットとを環
状に冷媒配管接続して暖冷房回路を形成し、暖房運転時
はバーナ付冷媒加熱器、ファン付室内熱交換器、フロー
ト弁内蔵受液器の順に、冷房運転時は圧縮機、バーナ付
冷媒加熱器、ファン付室外熱交換器、減圧装置、ファン
付室内熱交換器の順に冷媒が流れる冷媒回路を構成し、
冷房の運転時に前記バーナ付冷媒加熱器のバーナ燃焼用
ファンおよび前記室外ファンを運転し、暖房運転時に前
記バーナ付冷媒加熱器のバーナ燃焼用ファンを運転する
暖冷房機。1. An outdoor unit comprising a compressor, a refrigerant heater with a burner, an outdoor heat exchanger with a fan having an outdoor fan, a liquid receiver with a built-in float valve, and a pressure reducing device, and an indoor heat exchanger with a fan having an indoor fan. In the heating operation, the heating / cooling circuit is formed by annularly connecting the indoor unit with the refrigerant piping to the refrigerant heater with a burner, the indoor heat exchanger with a fan, and the receiver with a built-in float valve during cooling operation. Is a compressor, a burner-equipped refrigerant heater, a fan-equipped outdoor heat exchanger, a decompression device, and a fan-equipped indoor heat exchanger, forming a refrigerant circuit in which the refrigerant flows in this order.
A heating / cooling machine that drives the burner combustion fan and the outdoor fan of the burner-equipped refrigerant heater during operation of cooling, and operates the burner combustion fan of the burner-equipped refrigerant heater during heating operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61255071A JPH086976B2 (en) | 1986-10-27 | 1986-10-27 | Heating and cooling machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61255071A JPH086976B2 (en) | 1986-10-27 | 1986-10-27 | Heating and cooling machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63108171A JPS63108171A (en) | 1988-05-13 |
JPH086976B2 true JPH086976B2 (en) | 1996-01-29 |
Family
ID=17273730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61255071A Expired - Lifetime JPH086976B2 (en) | 1986-10-27 | 1986-10-27 | Heating and cooling machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH086976B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55162563A (en) * | 1979-06-04 | 1980-12-17 | Mitsubishi Electric Corp | Air conditioner |
JPS6038589A (en) * | 1983-08-12 | 1985-02-28 | Mitsubishi Electric Corp | Heat transfer device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604042Y2 (en) * | 1980-05-07 | 1985-02-04 | ダイキン工業株式会社 | Separate air conditioner/heater |
JPS58116969U (en) * | 1982-02-01 | 1983-08-10 | 三洋電機株式会社 | air conditioner |
-
1986
- 1986-10-27 JP JP61255071A patent/JPH086976B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55162563A (en) * | 1979-06-04 | 1980-12-17 | Mitsubishi Electric Corp | Air conditioner |
JPS6038589A (en) * | 1983-08-12 | 1985-02-28 | Mitsubishi Electric Corp | Heat transfer device |
Also Published As
Publication number | Publication date |
---|---|
JPS63108171A (en) | 1988-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |