JPS63243668A - Engine drive type air conditioner - Google Patents
Engine drive type air conditionerInfo
- Publication number
- JPS63243668A JPS63243668A JP62076617A JP7661787A JPS63243668A JP S63243668 A JPS63243668 A JP S63243668A JP 62076617 A JP62076617 A JP 62076617A JP 7661787 A JP7661787 A JP 7661787A JP S63243668 A JPS63243668 A JP S63243668A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- engine
- heat exchanger
- refrigerant
- compressor
- 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
- 238000010438 heat treatment Methods 0.000 claims description 45
- 239000003507 refrigerant Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
この発明は、エンジンを駆動源とするエンジン駆動式空
気調和機に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an engine-driven air conditioner using an engine as a driving source.
（従来の技術）
従来、エンジンを駆動源とするエンジン駆動式空気調和
機としては、第３図に示すものがある。(Prior Art) Conventionally, as an engine-driven air conditioner using an engine as a driving source, there is one shown in FIG. 3.
１は圧縮機で、この圧縮機１に四方弁２．室外熱交換器
３．減圧装置たとえばキャピラリチューブ４．室内熱交
換器５などを順次連通し、ヒートポンプ式冷凍サイクル
を構成している。さらに、各熱交換器間たとえばキャピ
ラリチューブ４と室内熱交換器５との連通部から圧縮機
１の圧縮室にかけて、第１開閉弁（電磁開閉弁）６およ
び冷媒加熱用熱交換器７を介してガスインジェクション
サイクル８を設けている。そして、圧縮機１の冷媒吐出
側配管に冷媒圧力センサ９を設けている。1 is a compressor, and this compressor 1 has a four-way valve 2. Outdoor heat exchanger 3. A pressure reducing device such as a capillary tube4. The indoor heat exchanger 5 and the like are successively connected to form a heat pump type refrigeration cycle. Furthermore, a first on-off valve (electromagnetic on-off valve) 6 and a refrigerant heating heat exchanger 7 are connected between each heat exchanger, for example, from the communication part between the capillary tube 4 and the indoor heat exchanger 5 to the compression chamber of the compressor 1. A gas injection cycle 8 is provided. A refrigerant pressure sensor 9 is provided on the refrigerant discharge side piping of the compressor 1.
２０はエンジンで、燃料供給源（図示しない）から供給
されるガスを燃焼し、上記圧縮機１を駆動するものであ
る。そして、エンジン２０の排気管２０ａに排ガス熱交
換器２１を設け、その排ガス熱交換器２１．第２開閉弁
（電磁開閉弁）２２．上記冷媒加熱用熱交換器７．ポン
プ２３．エンジン２０を順次介して温水サイクル２４を
構成している。ざらに、この海水サイクル２４の開閉弁
２２および冷媒加熱用熱交換器７と並列に、第３開閉弁
（電磁開閉弁）２５およびラジエタ２６を連通している
。Reference numeral 20 denotes an engine that burns gas supplied from a fuel supply source (not shown) and drives the compressor 1. Then, an exhaust gas heat exchanger 21 is provided in the exhaust pipe 20a of the engine 20, and the exhaust gas heat exchanger 21. Second on-off valve (electromagnetic on-off valve) 22. The above refrigerant heating heat exchanger7. Pump 23. A hot water cycle 24 is configured through the engine 20 in turn. Roughly speaking, a third on-off valve (electromagnetic on-off valve) 25 and a radiator 26 are communicated in parallel with the on-off valve 22 of this seawater cycle 24 and the heat exchanger 7 for heating the refrigerant.
すなわち、エンジン２０を起動すると、圧縮機１が運転
オンし、冷房運転または暖房運転の開始となる。That is, when the engine 20 is started, the compressor 1 is turned on and cooling operation or heating operation is started.
冷房運転時は、図示実線矢印で示すように圧縮機１．四
方弁２．室外熱交換器３．キャピラリチューブ４．室内
熱交換器５を通して冷媒が流れ、室外熱交換器３が凝縮
器、室内熱交換器５が蒸発器として作用する。なお、こ
の冷房運転時は開閉弁６ 、２２．２５の全てを閉成し
、ポンプ２３は駆動しない。During cooling operation, the compressor 1. Four-way valve 2. Outdoor heat exchanger 3. Capillary tube 4. Refrigerant flows through the indoor heat exchanger 5, the outdoor heat exchanger 3 acts as a condenser, and the indoor heat exchanger 5 acts as an evaporator. Note that during this cooling operation, all of the on-off valves 6 and 22.25 are closed, and the pump 23 is not driven.
暖房運転時は、四方弁２の切換作動により、図示破線矢
印で示すように圧縮画１．四方弁２．至内熱交換器５．
キャピラリチューブ４．室外熱交換器３を通して冷媒が
流れ、空白熱交換器５が凝縮器、室外熱交換器３が蒸発
器として作用する。During heating operation, the switching operation of the four-way valve 2 causes the compression ratio 1. Four-way valve 2. Internal heat exchanger5.
Capillary tube 4. Refrigerant flows through the outdoor heat exchanger 3, the blank heat exchanger 5 acts as a condenser, and the outdoor heat exchanger 3 acts as an evaporator.
そして、この暖房運転時、開閉弁６，２２を開放すると
ともに、ポンプ２３を駆動する。During this heating operation, the on-off valves 6 and 22 are opened and the pump 23 is driven.
開閉弁２２が開放してポンプ２３が動作すると、エンジ
ン２０の排熱による温水が冷媒加熱用熱交換器７に供給
される。一方、開閉弁６が開放すると、室内熱交換器５
を経た液冷媒の一部が冷媒加熱用熱交換器７に流入し、
そこで温水熱を奪って気化し、圧縮ｌにインジェクショ
ンされる。したがって、エンジン２０の排熱が暖房補助
熱となり、暖房能力が向上する。When the on-off valve 22 opens and the pump 23 operates, hot water generated by exhaust heat from the engine 20 is supplied to the refrigerant heating heat exchanger 7. On the other hand, when the on-off valve 6 opens, the indoor heat exchanger 5
A part of the liquid refrigerant that has passed through flows into the refrigerant heating heat exchanger 7,
There, it absorbs heat from the hot water, vaporizes it, and is injected into the compressor. Therefore, the exhaust heat of the engine 20 becomes heating supplementary heat, and the heating capacity is improved.
また、この暖房運転時、冷媒圧力センサ９が冷凍サイク
ルの高圧側圧力を検知しており、その高圧側圧力が所定
値以上になると（外気温の上昇などに基づく過負荷時）
、開閉弁２５を開放し、温水熱の一部をラジエタ２６を
介して外気に放出する。Also, during this heating operation, the refrigerant pressure sensor 9 detects the high pressure side pressure of the refrigeration cycle, and if the high pressure side pressure exceeds a predetermined value (at the time of overload due to a rise in outside temperature, etc.)
, the on-off valve 25 is opened and a portion of the hot water heat is released to the outside air via the radiator 26.
これは、暖房補助熱を減らして負荷を低減し、高圧側圧
力の上昇を抑えて圧縮［１ひいてはエンジン２０を保護
するものである。This is to reduce the load by reducing the heating auxiliary heat, suppress the increase in pressure on the high pressure side, and protect the compression [1 and ultimately the engine 20].
なお、暖房補助熱を減らすだけでは負荷を低減しきれな
い場合があり、その場合には開閉弁６を閉成してガスイ
ンジェクションサイクル８を遮断し、排熱利用を中止す
るようにしている。Note that there are cases where the load cannot be reduced simply by reducing the auxiliary heating heat, and in that case, the on-off valve 6 is closed to shut off the gas injection cycle 8 and use of exhaust heat is stopped.
（発明が解決しようとする問題点）
ただし、このような開閉弁６の開成による排熱利用中止
に際しては、冷媒加熱用熱交換器７に冷媒が残留し、そ
れが温水から熱を奪って高温度となる。このため、高圧
側圧力が一時的に急上昇し、高圧スイッチ（図示しない
）が作動して不要にも運転停止に至ることがある。最悪
の場合には、エンジン２０がブレークダウンし、運転で
きなくなることさえある。(Problem to be solved by the invention) However, when the use of waste heat is stopped by opening the on-off valve 6, refrigerant remains in the refrigerant heating heat exchanger 7, which absorbs heat from the hot water and causes a rise in temperature. temperature. As a result, the pressure on the high pressure side temporarily rises rapidly, causing a high pressure switch (not shown) to operate, which may lead to an unnecessary shutdown of the operation. In the worst case, the engine 20 may break down and become unoperable.
この発明は上記のような事情に鑑みてなされたもので、
その目的とするところは、暖房過負荷時、不要な運転停
止やエンジンのブレークダウンを生じることなく負荷を
低減することができ、常に安定した運転を可能とする安
全性および信頼性にすぐれたエンジン駆動式空気調和機
を提供することにある。This invention was made in view of the above circumstances,
The aim is to create an engine with excellent safety and reliability that can reduce the load without unnecessary shutdowns or engine breakdowns during heating overloads, and that enables stable operation at all times. The purpose of the present invention is to provide a drive type air conditioner.
（問題点を解決するための手段） 圧縮機、四方弁、至外熱交換器、減圧装置。(Means for solving problems) Compressor, four-way valve, external heat exchanger, pressure reducing device.
室内熱交換器を順次連通してなるヒートポンプ式冷凍サ
イクルと、前記各熱交換器間から前記圧縮機にかけて第
１開閉弁および冷媒加熱用熱交換器を介して設けたガス
インジェクションサイクルと、前記圧縮機を駆動するエ
ンジンと、このエンジンから舶記冷媒加熱用熱交換器に
かけて第２開閉弁を介して設けた温水サイクルと、暖房
運転時、前記第１および第２開閉弁を開放する手段と、
暖房運転時、過負荷状態になると前記第１および第２開
閉弁を閉成する手段とからなる。a heat pump type refrigeration cycle formed by sequentially communicating indoor heat exchangers; a gas injection cycle provided from between each of the heat exchangers to the compressor via a first on-off valve and a refrigerant heating heat exchanger; an engine that drives the machine, a hot water cycle provided from the engine to a heat exchanger for heating the ship's refrigerant via a second on-off valve, and means for opening the first and second on-off valves during heating operation;
and means for closing the first and second on-off valves when an overload condition occurs during heating operation.
（作用）
暖房過負荷時、第１開閉弁の開成によるガスインジェク
ションサイクルの遮断と、第２開閉弁２２の開成による
温水供給の停止との二段構えによリ、エンジンの排熱利
用が中止となる。これにより、負荷が低減する。(Function) When heating is overloaded, the use of exhaust heat from the engine is stopped due to the two-step system of shutting off the gas injection cycle by opening the first on-off valve and stopping hot water supply by opening the second on-off valve 22. becomes. This reduces the load.
（実施例）
以下、この発明の一実施例について図面を参照して説明
する。ただし、図面において第３図と同一部分には同一
符号を付し、その詳細な説明は省略する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. However, in the drawings, the same parts as in FIG. 3 are given the same reference numerals, and detailed explanation thereof will be omitted.
第１図に示すように、制御部３０を設ける。この制御部
３０は、空気調和機全般にわたる制御を行なうもので、
たとえばマイクロコンピュータおよびその周辺回路など
からなる。As shown in FIG. 1, a control section 30 is provided. This control unit 30 performs overall control of the air conditioner.
For example, it consists of a microcomputer and its peripheral circuits.
しかして、制御部３０に対し、運転操作部３１．タイマ
回路３２．四方弁２．第１開閉弁６．冷媒圧力センサ９
．エンジン２０．ポンプ２３．第２開閉弁２２゜第３開
閉弁２５を接続する。Accordingly, the control unit 30 has the operation operation unit 31 . Timer circuit 32. Four-way valve 2. First on-off valve6. Refrigerant pressure sensor 9
．． Engine 20. Pump 23. The second on-off valve 22° and the third on-off valve 25 are connected.
つぎに、上記のような構成において作用を説明する。Next, the operation in the above configuration will be explained.
操作部３１で冷房運転を設定し、かつ運転開始操作を行
なう。すると、制御部３０がエンジン２０を起動する。The cooling operation is set using the operation unit 31, and an operation to start the operation is performed. Then, the control unit 30 starts the engine 20.
エンジン２０が起動すると、圧縮機１が運転オンし、冷
房運転の開始となる。When the engine 20 is started, the compressor 1 is turned on and cooling operation begins.
この冷房運転時、制御部３０は開閉弁６ 、２２．２５
の全てを閉成するとともに、ポンプ２３を停止したまま
とする。During this cooling operation, the control unit 30 controls the on-off valves 6, 22.25.
All of the pumps are closed, and the pump 23 remains stopped.
一方、操作部３１で暖房運転を設定し、かつ運転開始操
作を行なう。すると、制御部３０は、エンジン２０を起
動するとともに、四方弁２を切換作動する。つまり、暖
房運転の開始となる。On the other hand, heating operation is set using the operation unit 31 and an operation start operation is performed. Then, the control unit 30 starts the engine 20 and switches the four-way valve 2. In other words, heating operation starts.
この暖房運転時、制御部３０は、開閉弁６，２２を開放
するとともに、ポンプ２３を駆動する。開閉弁２２が開
放してポンプ２３が動作すると、エンジン２０の排熱に
よる温水が冷媒加熱用熱交換器７に供給される。一方、
開閉弁６が開放すると、室内熱交換器５を経た液冷媒の
一部が冷媒加熱用熱交換器７に流入し、そこで温水熱を
奪って気化し、圧縮機１にインジェクションされる。During this heating operation, the control unit 30 opens the on-off valves 6 and 22 and drives the pump 23. When the on-off valve 22 opens and the pump 23 operates, hot water generated by exhaust heat from the engine 20 is supplied to the refrigerant heating heat exchanger 7. on the other hand,
When the on-off valve 6 opens, a portion of the liquid refrigerant that has passed through the indoor heat exchanger 5 flows into the refrigerant heating heat exchanger 7, where it absorbs heat from the hot water, vaporizes, and is injected into the compressor 1.
したがって、エンジン２０の排熱が暖房補助熱となり、
暖房能力が向上する。Therefore, the exhaust heat of the engine 20 becomes heating supplementary heat,
Heating capacity is improved.
また、この暖房運転時、制御部３０は冷媒圧力センサ９
によって冷凍サイクルの高圧側圧力を検知しており、そ
の高圧側圧力が所定値以上になるとく過負荷時）、開閉
弁２５を開放する。開閉弁２５が開放すると、温水熱の
一部がラジエタ２６を介して外気に放出される。これは
、暖房補助熱を減らして負荷を低減し、高圧側圧力の上
昇を抑えて圧縮機１を始めとする冷凍サイクル機器、ひ
いてはエンジン２０の安全を確保するものである。In addition, during this heating operation, the control unit 30 also controls the refrigerant pressure sensor 9.
The high-pressure side pressure of the refrigeration cycle is detected, and when the high-pressure side pressure exceeds a predetermined value (at the time of overload), the on-off valve 25 is opened. When the on-off valve 25 opens, a portion of the hot water heat is released to the outside air via the radiator 26. This reduces the heating auxiliary heat, reduces the load, suppresses the increase in pressure on the high pressure side, and ensures the safety of the refrigeration cycle equipment including the compressor 1, and eventually the engine 20.
なお、暖房補助熱を減らすだけでは負荷を軽減しきれな
い場合がある。しかして、高圧側圧力がさらに高い設定
値に達すると、制御部３０は開閉弁２２をまず閉成し、
それからタイマ回路３２の計時に基づく時間遅れをもっ
て開閉弁６を閉成する。Note that it may not be possible to reduce the load simply by reducing the heating auxiliary heat. When the high pressure side pressure reaches a higher set value, the control section 30 first closes the on-off valve 22,
Then, the on-off valve 6 is closed with a time delay based on the timing of the timer circuit 32.
開閉弁２２が閉成すると、冷媒加熱用熱交換器７に対す
る温水の供給が停止する。そして、開閉弁６が閉成する
と、ガスインジェクションサイクル８が遮断する。つま
り、排熱利用が中止となる。When the on-off valve 22 is closed, the supply of hot water to the refrigerant heating heat exchanger 7 is stopped. Then, when the on-off valve 6 closes, the gas injection cycle 8 is shut off. In other words, waste heat utilization will be discontinued.
このように、暖房過負荷時は排熱利用を中止することに
より、負荷を確実に低減することができる。特に、この
排熱利用の中止にあたっては、開閉弁６の開成によるガ
スインジェクションサイクル８の遮断と、開閉弁２２の
閉成による温水供給の停止との二段構えを採用している
ので、従来のようにガスインジェクションサイクル８を
遮断するだけのものに比べ、負荷低減効果が大である。In this manner, the load can be reliably reduced by stopping exhaust heat utilization during heating overload. In particular, when stopping this waste heat utilization, a two-step approach is adopted: opening the on-off valve 6 to shut off the gas injection cycle 8, and closing the on-off valve 22 to stop the hot water supply. As compared to simply blocking the gas injection cycle 8, the load reduction effect is greater.
しかも、開閉弁２２を先に閉成し、温水供給を前もって
停止しているので、冷媒加熱用熱交換器７に残留する冷
媒が高濃度になることがない。よって、高圧側圧力の一
時的な急上昇を回避することができ、高圧スイッチ（図
示しない）の作動による不要な運転停止を防ぐことがで
きる。さらには、エンジン２０のブレークダウンを防ぐ
ことができる。Moreover, since the on-off valve 22 is closed first and the hot water supply is stopped in advance, the refrigerant remaining in the refrigerant heating heat exchanger 7 does not become highly concentrated. Therefore, it is possible to avoid a temporary sudden increase in the pressure on the high pressure side, and it is possible to prevent unnecessary operation stoppage due to activation of a high pressure switch (not shown). Furthermore, breakdown of the engine 20 can be prevented.
すなわち、不要な運転停止やエンジンのブレークダウン
を生じることなく負荷を低減することができ、常に安定
した運転を行なうことができる。That is, the load can be reduced without causing unnecessary operation stop or engine breakdown, and stable operation can be performed at all times.
これにより、安全性の向上が図れるとともに、信頼性の
向上が図れる。Thereby, it is possible to improve safety and reliability.
なお、上記実施例では、開閉弁６の開成と開閉弁２２の
開成との間に時間差をもたせたが、必ずしもそうする必
要はなく、たとえば第２図に示すように開閉弁２２に対
してバイパスキャビラリチューブ４０を並列に連通し、
開閉弁６．２２を同時に閉成するようにしてもよい。こ
の場合、開閉弁６が閉成しても、キャピラリチューブ４
０を通しである程度の冷媒の流れが継続することにより
、冷媒加熱用熱交換器７における冷媒の温度上昇を防ぎ
、高圧側圧力の一時的な急上昇を回避することになる。In the above embodiment, a time difference is provided between the opening of the on-off valve 6 and the opening of the on-off valve 22, but it is not necessary to do so. For example, as shown in FIG. Connecting the cabillary tubes 40 in parallel,
The on-off valves 6.22 may be closed at the same time. In this case, even if the on-off valve 6 is closed, the capillary tube 4
By continuing the flow of the refrigerant to some extent through 0, the temperature of the refrigerant in the refrigerant heating heat exchanger 7 is prevented from rising, and a temporary sudden rise in the pressure on the high pressure side is avoided.
また、開閉弁２５の開放による暖房補助熱の低減を負荷
低減手段の一部としたが、必ずしもそうする必要はなく
、開閉弁２５を開放するかしないかはあくまでも使用者
の運転モード選択としてもよい。In addition, although reducing the heating auxiliary heat by opening the on-off valve 25 is considered as part of the load reduction means, it is not necessary to do so, and whether or not to open the on-off valve 25 is just a user's operation mode selection. good.
その他、この発明は上記実施例に限定されるものではな
く、要旨を変えない範囲で種々変形実施可能である。In addition, the present invention is not limited to the above-mentioned embodiments, and various modifications can be made without changing the gist.
［発明の効果コ 以上述べたようにこの発明によれば、圧縮機。[Effects of invention As described above, according to the present invention, there is provided a compressor.
四方弁、室外熱交換器、減圧装置、室内熱交換器を順次
連通してなるヒートポンプ式冷凍サイクルと、前記各熱
交換器間から前記圧縮機にかけて第１開閉弁および冷媒
加熱用熱交換器を介して設けたガスインジェクションサ
イクルと、前記圧縮機を駆動するエンジンと、このエン
ジンから前記冷媒加熱用熱交換器にかけて第２開閉弁を
介して設けた温水サイクルと、暖房運転時、前記第１お
よび第２開閉弁を開放する手段と、暖房運転時、過負荷
状態になると前記第１および第２開閉弁を閉成する手段
とを設けたので、暖房過負荷時、不要な運転停止やエン
ジンのブレークダウンを生じることなく負荷を低減する
ことができ、常に安定した運転を可能とする安全性およ
び信頼性にすぐれたエンジン駆動式空気調和機を提供で
きる。A heat pump type refrigeration cycle in which a four-way valve, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected in sequence, and a first on-off valve and a refrigerant heating heat exchanger are provided between each of the heat exchangers and the compressor. a gas injection cycle provided through the compressor, an engine that drives the compressor, a hot water cycle provided from the engine to the refrigerant heating heat exchanger via a second on-off valve; Since a means for opening the second on-off valve and a means for closing the first and second on-off valves when an overload condition occurs during heating operation are provided, unnecessary operation stoppages and engine shutoffs are provided during heating overload. It is possible to provide an engine-driven air conditioner with excellent safety and reliability, which can reduce the load without causing breakdown, and which enables stable operation at all times.
第１図はこの発明の一実施例の構成を示す図、第２図は
同実施例の変形例の要部の構成を示す図、第３図は従来
におけるエンジン駆動式空気調和機の一例の構成を示す
図である。
１・・・圧縮機、３・・・室外熱交換器、５・・・室内
熱交換器、６・・・第１開閉弁、７・・・冷媒加熱用熱
交換器、８・・・ガスインジェクションサイクル、２０
・・・エンジン、２２・・・第２開閉弁、２４・・・温
水サイクル、３０・・・制御部。
一１２ダト（すＬＪ＃！
第２図FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of main parts of a modification of the same embodiment, and FIG. 3 is an example of a conventional engine-driven air conditioner. FIG. 3 is a diagram showing the configuration. DESCRIPTION OF SYMBOLS 1...Compressor, 3...Outdoor heat exchanger, 5...Indoor heat exchanger, 6...First on-off valve, 7...Refrigerant heating heat exchanger, 8...Gas Injection cycle, 20
...Engine, 22...Second on-off valve, 24...Hot water cycle, 30...Control unit. 112 Dato (Su LJ#! Figure 2
Claims (3)
熱交換器を順次連通してなるヒートポンプ式冷凍サイク
ルと、前記各熱交換器間から前記圧縮機にかけて第１開
閉弁および冷媒加熱用熱交換器を介して設けたガスイン
ジェクションサイクルと、前記圧縮機を駆動するエンジ
ンと、このエンジンから前記冷媒加熱用熱交換器にかけ
て第２開閉弁を介して設けた温水サイクルと、暖房運転
時、前記第１および第２開閉弁を開放する手段と、暖房
運転時、過負荷状態になると前記第１および第２開閉弁
を閉成する手段とを具備したことを特徴とするエンジン
駆動式空気調和機。(1) A heat pump type refrigeration cycle in which a compressor, a four-way valve, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected in sequence, and a first on-off valve and a refrigerant connected between each of the heat exchangers and the compressor. A gas injection cycle provided via a heating heat exchanger, an engine that drives the compressor, a hot water cycle provided from the engine to the refrigerant heating heat exchanger via a second on-off valve, and heating operation. an engine-driven type characterized by comprising: means for opening the first and second on-off valves during heating operation; and means for closing the first and second on-off valves when an overload condition occurs during heating operation. Air conditioner.
開閉弁を先に閉成し、それに遅れて第１開閉弁を閉成す
ることを特徴とする特許請求の範囲第１項記載のエンジ
ン駆動式空気調和機。(2) When closing the first and second on-off valves,
2. The engine-driven air conditioner according to claim 1, wherein the on-off valve is closed first, and the first on-off valve is closed later.
を連通していることを特徴とする特許請求の範囲第１項
記載のエンジン駆動式空気調和機。(3) The engine-driven air conditioner according to claim 1, characterized in that a bypass capillary tube is communicated in parallel with the first on-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076617A JPS63243668A (en) | 1987-03-30 | 1987-03-30 | Engine drive type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076617A JPS63243668A (en) | 1987-03-30 | 1987-03-30 | Engine drive type air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63243668A true JPS63243668A (en) | 1988-10-11 |
Family
ID=13610311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62076617A Pending JPS63243668A (en) | 1987-03-30 | 1987-03-30 | Engine drive type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63243668A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125205A (en) * | 2002-09-30 | 2004-04-22 | Aisin Seiki Co Ltd | Waste heat recovery type heat pump |
| JP2010190511A (en) * | 2009-02-19 | 2010-09-02 | Mitsubishi Heavy Ind Ltd | Engine-driven air conditioner |
| WO2023119865A1 (en) * | 2021-12-22 | 2023-06-29 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
-
1987
- 1987-03-30 JP JP62076617A patent/JPS63243668A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125205A (en) * | 2002-09-30 | 2004-04-22 | Aisin Seiki Co Ltd | Waste heat recovery type heat pump |
| JP2010190511A (en) * | 2009-02-19 | 2010-09-02 | Mitsubishi Heavy Ind Ltd | Engine-driven air conditioner |
| WO2023119865A1 (en) * | 2021-12-22 | 2023-06-29 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
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