JPH0419216A - Engine-driven air conditioner - Google Patents
Engine-driven air conditionerInfo
- Publication number
- JPH0419216A JPH0419216A JP12096290A JP12096290A JPH0419216A JP H0419216 A JPH0419216 A JP H0419216A JP 12096290 A JP12096290 A JP 12096290A JP 12096290 A JP12096290 A JP 12096290A JP H0419216 A JPH0419216 A JP H0419216A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- refrigerant
- heat exchanger
- compressor
- condensed
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、エンジン駆動空気調和装置に用いられるエ
ンジンの冷却方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for cooling an engine used in an engine-driven air conditioner.
〔従来の技術）
第２図は例えば特開昭６３−２０７９６２号公報に示さ
れた従来のエンジン駆動空気調和装置であり、図におい
て（１）はエンジン、（２）は排ガス熱交換器、（３）
は消音器、（５）はエンジン（１）により駆動される圧
縮機、（６）はアキュムレータ、（７）は冷房・暖房の
冷媒切替を行なう四方弁、（８）は室外熱交換器、（９
）は室外送風機、（１ｏ）は室内熱交換器、（１１）は
室内送風機、（１２）は冷媒の減圧器、（１５）はエン
ジンの排熱を放出するラジェター（１６）はエンジン冷
却水を循環させるポンプである。[Prior Art] Fig. 2 shows a conventional engine-driven air conditioner shown in, for example, Japanese Patent Application Laid-Open No. 63-207962. In the figure, (1) is an engine, (2) is an exhaust gas heat exchanger, ( 3)
is a silencer, (5) is a compressor driven by engine (1), (6) is an accumulator, (7) is a four-way valve that switches refrigerant for cooling and heating, (8) is an outdoor heat exchanger, ( 9
) is an outdoor blower, (1o) is an indoor heat exchanger, (11) is an indoor blower, (12) is a refrigerant pressure reducer, (15) is a radiator that releases engine exhaust heat, and (16) is a radiator that releases engine cooling water. It is a pump that circulates.
次に動作について説明する。暖房運転時、エンジン（１
）で駆動される冷媒圧縮機（５）で圧縮された冷媒は四
方弁（７）を通り、室内熱交換器（１０）に入り凝縮す
る。この時の凝縮熱は室内送風機（１１）で送られる空
気を加熱し室内の暖房に供される。Next, the operation will be explained. During heating operation, the engine (1
The refrigerant compressed by the refrigerant compressor (5) driven by the refrigerant compressor (5) passes through the four-way valve (7), enters the indoor heat exchanger (10), and is condensed. The condensed heat at this time heats the air sent by the indoor blower (11) and is used to heat the room.
凝縮した冷媒は減圧器（１２）を通り室外熱交換器（８
）内で蒸発する。この時の蒸発熱は室外送風機（９）で
送られる外気から得られる。蒸発した冷媒は、四方弁（
７）を通り、アキュムレータ（６）を通って再び圧縮機
（５）に吸込まれるサイクルを形成する。The condensed refrigerant passes through the pressure reducer (12) and is transferred to the outdoor heat exchanger (8).
) evaporates within. The heat of evaporation at this time is obtained from the outside air sent by the outdoor blower (9). The evaporated refrigerant is removed from the four-way valve (
7), passes through the accumulator (6), and is sucked into the compressor (5) again.
一方、エンジン（１）の排熱のうち、一部は、ポンブ（
１６）にて循環させられる冷熱水に排出する、他は排気
ガスとしてエンジン外に排出する。排気ガスはエンジン
（１）を冷却した冷熱水と排ガス熱交換器（２）内で熱
交換し、冷却され、消音器（３）を通って大気へ放出さ
れる。一方、加熱された冷却水はラジェター（１５）で
室外送風機（９）によって送られる外気と熱交換し、冷
却され、ポンプ（１６）にて再びエンジン（１）に入り
、エンジン冷却に供されるサイクルを形成する。On the other hand, part of the exhaust heat from the engine (1) is absorbed by the pump (
16) is discharged into the circulating cold and hot water, and the rest is discharged outside the engine as exhaust gas. The exhaust gas exchanges heat with the cold water that cooled the engine (1) in the exhaust gas heat exchanger (2), is cooled, and is discharged to the atmosphere through the muffler (3). On the other hand, the heated cooling water exchanges heat with the outside air sent by the outdoor blower (9) in the radiator (15), is cooled, and enters the engine (1) again through the pump (16), where it is used for engine cooling. form a cycle.
（ｉ！！Ｊ！を解決しようとする課題〕従来のエンジン
駆動空気調和装置は以上のように構成されているので、
冷媒回路とは別に、エンジンの冷却システムを持つこと
が必要であり、かつ、エンジンの冷却に水を使用するた
め、冬期は、凍結をおこし、ラジェター等の破損をおこ
すなどの課題があった。(Problem to solve i!!J!) Since the conventional engine-driven air conditioner is configured as described above,
It is necessary to have an engine cooling system separate from the refrigerant circuit, and since water is used to cool the engine, there are problems such as freezing and damage to the radiator etc. in the winter.
この発明は上記のような課題を解決するためになされた
もので、エンジンの冷却に冷媒の蒸発熱を用いると共に
、冷媒の圧縮と凝縮を空調に用いる圧縮機・凝縮器で行
なわせることがで知るエンジン駆動空気調和装置を得る
ことを目的とする。This invention was made to solve the above-mentioned problems, and it is possible to use the heat of evaporation of the refrigerant to cool the engine, and to compress and condense the refrigerant using a compressor/condenser used for air conditioning. The purpose is to obtain an engine-driven air conditioner.
この発明に係るエンジン駆動空気調和装置は、エンジン
駆動による冷媒圧縮用の圧縮機と、圧縮冷媒を凝縮し、
凝縮熱を得て室内へ放出する室内熱交換機と、凝縮冷媒
を蒸発させ再び上記圧縮機へ吸込ませる室外熱交換機と
、上記室内熱交換機により吐出された凝縮冷媒を一部エ
ンジン内に導入し、エンジン排熱を得て蒸発した冷媒を
上記圧縮機へ吸込ませるエンジン冷却手段を備えたもの
である。An engine-driven air conditioner according to the present invention includes an engine-driven compressor for compressing refrigerant, a compressor for condensing the compressed refrigerant,
an indoor heat exchanger that obtains condensation heat and releases it indoors; an outdoor heat exchanger that evaporates the condensed refrigerant and sucks it into the compressor again; a part of the condensed refrigerant discharged by the indoor heat exchanger is introduced into the engine; The compressor is equipped with an engine cooling means for obtaining engine exhaust heat and sucking evaporated refrigerant into the compressor.
この発明によれば、室内熱交換機より吐出され室外熱交
換機にて蒸発され、再び圧縮機へ循環される凝縮冷媒の
一部をエンジン冷却手段にてエンジン内に導入し、エン
ジン排熱を得て蒸発させ上記圧縮機へ循環させるように
したので、空気調和に用いる凝縮冷媒によってエンジン
を冷却することかできる。According to this invention, a part of the condensed refrigerant discharged from the indoor heat exchanger, evaporated in the outdoor heat exchanger, and circulated again to the compressor is introduced into the engine by the engine cooling means to obtain engine exhaust heat. Since the refrigerant is evaporated and circulated to the compressor, the engine can be cooled by the condensed refrigerant used for air conditioning.
以下、この発明の一実施例を図について説明する。第１
図において、（１）はエンジン、（２）は排ガス熱交換
器、（３）は消音器、（５）はエンジン（１）により駆
動される圧縮機、（６）はアキュムレータ、（７）は冷
房・暖房の冷媒切替を行なう四方弁、（８）は室外熱交
換器、（９）は室外送風機、（工０）は室内熱交換器、
（１１）は室内送風機、（２２）は冷媒の減圧器、（２
３）はエンジン（１）に入る冷媒の減圧器である。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1) is the engine, (2) is the exhaust gas heat exchanger, (3) is the muffler, (5) is the compressor driven by the engine (1), (6) is the accumulator, and (7) is the Four-way valve that switches refrigerant for cooling and heating, (8) is an outdoor heat exchanger, (9) is an outdoor blower, (Work 0) is an indoor heat exchanger,
(11) is an indoor blower, (22) is a refrigerant pressure reducer, (2
3) is a pressure reducer for the refrigerant entering the engine (1).
次に動作について説明する。暖房運転時、エンジン（１
）で駆動される冷媒圧縮機（１）で圧縮された冷媒は、
四方弁（７）を通り、室内熱交換器（１０）に入り凝縮
する。この時の凝縮熱は室内送風機（１１）で送られる
空気を加熱し室内の暖房に供される。凝縮した冷媒は減
圧器（２２）を通り、一部は室外熱交換器（８）へ、残
りは減圧器（２３）を通ってエンジン（１）に導かれる
。室外熱交換器（８）に導かれた冷媒は、ここで蒸発す
る。この時の蒸発熱は室外送風機（９）で送られる外気
から得られる。蒸発した冷媒は四方弁を通りアキュムレ
ータ（６）に入る。Next, the operation will be explained. During heating operation, the engine (1
) The refrigerant compressed by the refrigerant compressor (1) driven by
It passes through a four-way valve (7) and enters an indoor heat exchanger (10) where it is condensed. The condensed heat at this time heats the air sent by the indoor blower (11) and is used to heat the room. The condensed refrigerant passes through the pressure reducer (22), a portion of which is led to the outdoor heat exchanger (8), and the rest of the refrigerant passes through the pressure reducer (23) and is led to the engine (1). The refrigerant led to the outdoor heat exchanger (8) evaporates here. The heat of evaporation at this time is obtained from the outside air sent by the outdoor blower (9). The evaporated refrigerant passes through the four-way valve and enters the accumulator (6).
一方、減圧器（２３）を通った冷媒はエンジン（１）に
入り、ここで蒸発し、エンジンの排熱を奪い取る。エン
ジン内で一部蒸発した冷媒は排ガス熱交換器（２）に入
り、排ガスと熱交換し、完全に蒸発しアキュムレータ（
［ｉ）に入る。排ガス熱交換で冷媒と熱交換した排ガス
は冷却され、消音器（３）を通って大気へ放出される。On the other hand, the refrigerant that has passed through the pressure reducer (23) enters the engine (1), where it evaporates and takes away exhaust heat from the engine. The refrigerant that has partially evaporated in the engine enters the exhaust gas heat exchanger (2), exchanges heat with the exhaust gas, and completely evaporates, leaving the accumulator (
Enter [i]. The exhaust gas that has exchanged heat with the refrigerant in the exhaust gas heat exchange is cooled and discharged to the atmosphere through the muffler (3).
一方アキュムレータに入った室外熱交換器（８）からの
冷媒と、排ガス熱交換器（２）からの冷媒は混合されて
再び圧縮機（１）に吸込まれる。On the other hand, the refrigerant from the outdoor heat exchanger (8) that has entered the accumulator and the refrigerant from the exhaust gas heat exchanger (2) are mixed and sucked into the compressor (1) again.
（発明の効果）
以上のように、この発明によれば、エンジンの冷却を空
調に用いる冷媒の一部を蒸発させて行なうため、冷却水
を用いる必要が無く、冬期の冷却水凍結のトラブルが無
くなり、かつ、冷却水循環用のポンプ及び放熱用のラジ
ェターも不要となり、装置が安価となる。また、エンジ
ンの排熱を冷媒に与えることで、室内の暖房能力が増加
する効果が得られる。(Effects of the Invention) As described above, according to the present invention, the engine is cooled by evaporating a part of the refrigerant used for air conditioning, so there is no need to use cooling water, and the problem of freezing of the cooling water in winter is avoided. This also eliminates the need for a pump for circulating cooling water and a radiator for heat radiation, making the device less expensive. In addition, by applying exhaust heat from the engine to the refrigerant, the indoor heating capacity can be increased.
第１図はこの発明の一実施例によるエンジン駆動空気調
和装置の回路図、第２図は従来のエンジン駆動空気調和
装置の回路図である。
（１）はエンジン、（２）は排ガス熱交換器、（５）は
圧縮機、（８）は室外熱交換器、（９）は室外送風機、
（１０）は室内熱交換器、（１１）は室内送風機、（１
２） 、 （２２） 、 （２３）は減圧器、（１５）
はラジェター。
なお、図中、同一符号は同一、又は相当部分を箪
因
フッ
１ニエレリン
２、倒−一久地死才灸来、
５ 凡礒軍１
６ 了＼エム、レーク
８゛を外１表（１鳩FIG. 1 is a circuit diagram of an engine-driven air conditioner according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional engine-driven air conditioner. (1) is the engine, (2) is the exhaust gas heat exchanger, (5) is the compressor, (8) is the outdoor heat exchanger, (9) is the outdoor blower,
(10) is an indoor heat exchanger, (11) is an indoor blower, (1
2), (22), (23) are pressure reducers, (15)
is a radiator. In addition, in the diagram, the same numerals are the same, or the corresponding parts are the same as the meaning of 1.
Claims (1)
を凝縮し、凝縮熱を得て室内へ放出する室内熱交換機と
、凝縮冷媒を蒸発させ再び上記圧縮機へ吸込ませる室外
熱交換機と、上記室内熱交換機により吐出された凝縮冷
媒を一部エンジン内に導入し、エンジン排熱を得て蒸発
した冷媒を上記圧縮機へ吸込ませるエンジン冷却手段を
備えたことを特徴とするエンジン駆動空気調和装置。a compressor for compressing refrigerant driven by an engine; an indoor heat exchanger that condenses the compressed refrigerant, obtains heat of condensation, and releases it indoors; an outdoor heat exchanger that evaporates the condensed refrigerant and sucks it into the compressor again; An engine-driven air conditioner comprising an engine cooling means for introducing a part of the condensed refrigerant discharged by the heat exchanger into the engine, obtaining exhaust heat from the engine, and sucking the evaporated refrigerant into the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12096290A JPH0419216A (en) | 1990-05-10 | 1990-05-10 | Engine-driven air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12096290A JPH0419216A (en) | 1990-05-10 | 1990-05-10 | Engine-driven air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419216A true JPH0419216A (en) | 1992-01-23 |
Family
ID=14799311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12096290A Pending JPH0419216A (en) | 1990-05-10 | 1990-05-10 | Engine-driven air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100591320B1 (en) * | 2004-12-13 | 2006-06-19 | 엘지전자 주식회사 | Air conditioning unit using cogeneration system |
-
1990
- 1990-05-10 JP JP12096290A patent/JPH0419216A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100591320B1 (en) * | 2004-12-13 | 2006-06-19 | 엘지전자 주식회사 | Air conditioning unit using cogeneration system |
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