JPS6342183B2 - - Google Patents
Info
- Publication number
- JPS6342183B2 JPS6342183B2 JP54104828A JP10482879A JPS6342183B2 JP S6342183 B2 JPS6342183 B2 JP S6342183B2 JP 54104828 A JP54104828 A JP 54104828A JP 10482879 A JP10482879 A JP 10482879A JP S6342183 B2 JPS6342183 B2 JP S6342183B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- engine
- cooling
- radiator
- valve
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 15
- 239000003507 refrigerant Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid 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
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】
この発明はエンジン駆動により冷暖房運転を行
なうエンジン駆動空気調和機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine-driven air conditioner that performs cooling and heating operation by being driven by an engine.
電動機によつてコンプレツサを駆動する冷暖房
機に代るものとして、エンジン駆動による空気調
和機が知られている。しかしながら、コンプレツ
サの能力可変を行なう場合、従来の電動機駆動に
おいてはステツプ制御あるいはインバーダ制御な
どを採用しているが、エンジン駆動の場合におい
てはその能力を可変し負荷に応じた適正の回転数
に制御できるものは知られていない。 2. Description of the Related Art Engine-driven air conditioners are known as an alternative to air conditioners whose compressors are driven by electric motors. However, when changing the compressor's capacity, conventional electric motor drives use step control or inverter control, but in the case of engine drives, the capacity is varied and the rotation speed is controlled to the appropriate speed according to the load. It is not known what can be done.
この発明は上記事情に着目してなされたもの
で、その目的とするところは、エンジンに燃料調
節用の比例弁を設け、負荷に応じてエンジンの回
転数を可変することによりコンプレツサを連続的
に能力可変できるエンジン駆動空気調和機を提供
しようとするものである。 This invention was made in view of the above circumstances, and its purpose is to continuously operate the compressor by providing a proportional valve for fuel adjustment in the engine and varying the engine speed according to the load. The present invention aims to provide an engine-driven air conditioner with variable capacity.
以下、この発明を図面に示す一実施例にもとず
いて説明する。第１図中１は水冷式のエンジンで
ある。このエンジン１はカツプリング２を介して
コンプレツサ３に連動している。このコンプレツ
サ３は四方弁４を介して室外熱交換器５に接続さ
れ、この室外熱交換器５は、並列に接続された逆
止弁６と膨張弁７を介してリキツドタンク８に接
続されている。このリキツドタンク８はキヤピラ
リチユーブ９を介して室内熱交換器１０に接続さ
れ、この室内熱交換器１０は上記四方弁４を介し
てコンプレツサ３のサクシヨンカツプ１１に接続
されている。そして、上記室外熱交換器５には室
外フアン１２、室内熱交換器１０には室内フアン
１３がそれぞれ対向して設けられヒートポンプ式
の冷凍サイクルを構成している。さらに、エンジ
ン１には冷却用熱交換器１４が設けられている。
この冷却用熱交換器１４の一端は第１の三方弁１
５に接続され、他端はポンプ１６を介して第２の
三方弁１７に接続されている。そして、第１と第
２の三方弁１５，１７間は上記室外熱交換器５に
併設したラジエタ１８と接続されているととも
に、室内熱交換器１０と四方弁４との間に設けた
冷媒加熱器１９と接続され、冷却水循環路を構成
している。したがつて、第１、第２の三方弁１
５，１７の切換えによつてラジエタ１８または冷
媒加熱器１９で放熱できるようになつている。 The present invention will be explained below based on an embodiment shown in the drawings. 1 in FIG. 1 is a water-cooled engine. This engine 1 is linked to a compressor 3 via a coupling 2. This compressor 3 is connected to an outdoor heat exchanger 5 via a four-way valve 4, and this outdoor heat exchanger 5 is connected to a liquid tank 8 via a check valve 6 and an expansion valve 7 that are connected in parallel. . The liquid tank 8 is connected to an indoor heat exchanger 10 via a capillary tube 9, and the indoor heat exchanger 10 is connected to a suction cup 11 of the compressor 3 via the four-way valve 4. The outdoor heat exchanger 5 is provided with an outdoor fan 12, and the indoor heat exchanger 10 is provided with an indoor fan 13, respectively, to form a heat pump type refrigeration cycle. Furthermore, the engine 1 is provided with a cooling heat exchanger 14.
One end of this cooling heat exchanger 14 is connected to the first three-way valve 1
5, and the other end is connected to a second three-way valve 17 via a pump 16. The first and second three-way valves 15 and 17 are connected to a radiator 18 attached to the outdoor heat exchanger 5, and a refrigerant heating unit is provided between the indoor heat exchanger 10 and the four-way valve 4. It is connected to the container 19 and constitutes a cooling water circulation path. Therefore, the first and second three-way valves 1
Heat can be radiated by the radiator 18 or the refrigerant heater 19 by switching between 5 and 17.
さらに、上記エンジン１には後述する比例弁２
０を介して燃料供給源２１が接続されている。こ
の比例弁２０は第２図で示すように、温度設定部
２２と負荷温度検知部２３とを比較部２４によつ
て比較し、その温度差を電気信号に変換して増幅
部２５により増幅する電子制御部２６と電気的に
接続されている。そして、比例弁２０は電子制御
部２６からの出力信号によつて作動しエンジン１
への燃料供給量を連続的に調節できるようになつ
ている。また、負荷温度検知部２３は上記室内熱
交換器１０に付設した感温センサによつて形成さ
れ、負荷温度（室内温度）を検知するようになつ
ている。 Furthermore, the engine 1 has a proportional valve 2 which will be described later.
A fuel supply source 21 is connected via 0. As shown in FIG. 2, this proportional valve 20 compares a temperature setting section 22 and a load temperature detection section 23 using a comparison section 24, converts the temperature difference into an electric signal, and amplifies it using an amplification section 25. It is electrically connected to the electronic control section 26. The proportional valve 20 is actuated by an output signal from the electronic control section 26, and the engine 1
The fuel supply amount can be continuously adjusted. Further, the load temperature detection section 23 is formed by a temperature sensor attached to the indoor heat exchanger 10, and is adapted to detect the load temperature (indoor temperature).
しかして、冷房運転時にはエンジン１によつて
駆動するコンプレツサ３から吐出する高温高圧の
ガス冷媒は実線矢印で示すように四方弁４を介し
て室外熱交換器５に送られ、ここで、凝縮液化さ
れる。この液冷媒は逆止弁６、リキツドタンク
８、キヤピラリチユーブ９を介して室内熱交換器
１０に流れ、ここで蒸発して室内冷房を行なう。
このとき、ポンプ１６は作動しているため冷却水
はエンジン１の冷却用熱交換器１４に送られエン
ジン１を冷却したのち第１の三方弁１５を介して
室外熱交換器５に併設したラジエタ１８に送り込
まれ、ここで放熱し、ついで第２の三方弁１７を
介してポンプ１６に戻る。したがつて、冷房運転
中は循環する冷却水がラジエタ１８によつて放熱
され、エンジン１を冷却することになる。 During cooling operation, the high-temperature, high-pressure gas refrigerant discharged from the compressor 3 driven by the engine 1 is sent to the outdoor heat exchanger 5 via the four-way valve 4 as shown by the solid arrow, where it is condensed and liquefied. be done. This liquid refrigerant flows through the check valve 6, liquid tank 8, and capillary tube 9 to the indoor heat exchanger 10, where it evaporates and cools the room.
At this time, since the pump 16 is operating, the cooling water is sent to the cooling heat exchanger 14 of the engine 1, cools the engine 1, and then passes through the first three-way valve 15 to the radiator attached to the outdoor heat exchanger 5. 18, where it radiates heat, and then returns to the pump 16 via the second three-way valve 17. Therefore, during the cooling operation, the circulating cooling water radiates heat by the radiator 18 and cools the engine 1.
また、暖房運転を行なう場合には、四方弁４お
よび第１、第２の三方弁１５，１７を切換えるこ
とにより、コンプレツサ３から吐出する高温高圧
のガス冷媒は破線矢印で示すように、四方弁４を
介して室内熱交換器１０に流れ、ここで放熱させ
ることにより室内暖房を行なう。このとき、ポン
プ１６の作動によつて冷却水は冷却用熱交換器１
４→第１の三方弁１５→冷媒加熱器１９→第２の
三方弁１７→ポンプ１６の順に循環している。し
たがつて、エンジン１の冷却用熱交換器１４によ
つて、熱交換された循環水は冷媒加熱器１９で放
熱し、室内熱交換器１０へ送り込む冷媒を加熱す
ることができ、暖房能力を向上することができ
る。 In addition, when performing heating operation, by switching the four-way valve 4 and the first and second three-way valves 15 and 17, the high temperature and high pressure gas refrigerant discharged from the compressor 3 is switched to the four-way valve as shown by the broken line arrow. 4 to the indoor heat exchanger 10, where the heat is radiated to heat the room. At this time, the cooling water is supplied to the cooling heat exchanger 1 by the operation of the pump 16.
4→first three-way valve 15→refrigerant heater 19→second three-way valve 17→pump 16. Therefore, the circulating water heat-exchanged by the cooling heat exchanger 14 of the engine 1 can radiate heat in the refrigerant heater 19 and heat the refrigerant sent to the indoor heat exchanger 10, increasing the heating capacity. can be improved.
このような冷房運転中もしくは暖房運転中、負
荷温度（室内温度）は負荷温度検知部２３によつ
て検知され、この検知部２３からの電気信号と温
度設定部２２からの電気信号は比較部２４によつ
て比較される。そして、この比較部２４からの信
号は増幅部２５を介して比例弁２０に入力され、
比例弁２０は設定した温度と負荷温度の差に比例
して作動し、燃料供給源２１からエンジン１に供
給される燃料を連続的に制御することになる。し
たがつて、エンジン１の回転数が変化し、コンプ
レツサ３の能力を連続的に可変することができ
る。 During such cooling operation or heating operation, the load temperature (indoor temperature) is detected by the load temperature detection section 23, and the electrical signal from this detection section 23 and the electrical signal from the temperature setting section 22 are sent to the comparison section 24. compared by. Then, the signal from the comparison section 24 is inputted to the proportional valve 20 via the amplification section 25,
The proportional valve 20 operates in proportion to the difference between the set temperature and the load temperature, and continuously controls the fuel supplied to the engine 1 from the fuel supply source 21. Therefore, the rotational speed of the engine 1 changes, and the capacity of the compressor 3 can be varied continuously.
この発明は以上説明したように、エンジンと、
このエンジンに燃料を供給する燃料供給源との間
に燃料調節用の比例弁を設け、この比例弁を負荷
温度と設定温度との差に比例して作動させるよう
にしたから、負荷の変動に応じてエンジン回転数
を連続的に制御でき、コンプレツサの能力を連続
可変することができるという効果がある。 As explained above, this invention includes an engine,
A proportional valve for fuel adjustment is installed between the fuel supply source that supplies fuel to the engine, and this proportional valve is operated in proportion to the difference between the load temperature and the set temperature. This has the advantage that the engine speed can be continuously controlled accordingly, and the compressor capacity can be continuously varied.
さらに、エンジンに冷却用熱交換器を設け、こ
の熱交換器によつて熱交換された循環水を冷媒加
熱器で放熱することによつて室内熱交換器へ送り
込む冷媒を加熱することができ、暖房能力を向上
できるという効果もある。 Furthermore, the engine is provided with a cooling heat exchanger, and the refrigerant sent to the indoor heat exchanger can be heated by radiating heat from the circulating water heat-exchanged by the heat exchanger with a refrigerant heater, It also has the effect of improving heating capacity.
第１図はこの発明の一実施例を示すサイクルの
系統図、第２図は同じく比例弁の制御回路図であ
る。
１…エンジン、２０…比例弁、２１…燃料供給
源。
FIG. 1 is a cycle system diagram showing an embodiment of the present invention, and FIG. 2 is a control circuit diagram of a proportional valve. DESCRIPTION OF SYMBOLS 1... Engine, 20... Proportional valve, 21... Fuel supply source.
Claims (1)
る能力可変型のコンプレツサ、四方弁、室外熱交
換器、膨張弁および室内熱交換器をこの順序で接
続することにより構成されたヒートポンプ式冷凍
サイクルと、前記エンジンに設けた冷却用熱交換
器と、前記四方弁と室内熱交換器との間に設けた
冷媒加熱器、前記室外熱交換器に並設したラジエ
ータ、前記冷却用熱交換器と冷媒加熱器との間を
結ぶ管路および前記冷却用熱交換器とラジエータ
とを結ぶ管路によつて構成された暖房時と冷房時
の２系統の冷却水循環路と、前記エンジンとこの
エンジンに燃料を供給する燃料供給源との間に設
けられ連続的に燃料供給量を調節する比例弁と、
この比例弁を負荷温度と設定温度との差に比例し
て作動させる制御手段とを設けたことを特徴とす
るエンジン駆動空気調和機。1. A heat pump refrigeration cycle configured by connecting an engine, a variable capacity compressor driven by the engine, a four-way valve, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger in this order; A cooling heat exchanger provided in the engine, a refrigerant heater provided between the four-way valve and the indoor heat exchanger, a radiator provided in parallel with the outdoor heat exchanger, and the cooling heat exchanger and refrigerant heating. two cooling water circulation paths for heating and cooling, each consisting of a pipe connecting the cooling heat exchanger and the radiator, and a pipe connecting the cooling heat exchanger and the radiator; a proportional valve that is provided between the fuel supply source and continuously adjusts the fuel supply amount;
An engine-driven air conditioner comprising a control means for operating the proportional valve in proportion to the difference between a load temperature and a set temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10482879A JPS5630570A (en) | 1979-08-17 | 1979-08-17 | Engineedriven air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10482879A JPS5630570A (en) | 1979-08-17 | 1979-08-17 | Engineedriven air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5630570A JPS5630570A (en) | 1981-03-27 |
| JPS6342183B2 true JPS6342183B2 (en) | 1988-08-22 |
Family
ID=14391236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10482879A Granted JPS5630570A (en) | 1979-08-17 | 1979-08-17 | Engineedriven air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5630570A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161438A (en) * | 1981-03-30 | 1982-10-05 | Sanyo Electric Co Ltd | Equipment with cooling, heating and hot water supply functions combined |
| JPS57164242A (en) * | 1981-03-31 | 1982-10-08 | Kubota Ltd | Engine driven type room airconditioner |
| JPS57164241A (en) * | 1981-03-31 | 1982-10-08 | Kubota Ltd | Engine driven type room aircondtioner |
| JPS5888547A (en) * | 1981-11-19 | 1983-05-26 | Sanyo Electric Co Ltd | Control device for air conditioner |
| JPS6416162U (en) * | 1987-07-14 | 1989-01-26 |
-
1979
- 1979-08-17 JP JP10482879A patent/JPS5630570A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5630570A (en) | 1981-03-27 |
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