JPH024180A - Space heating and cooling device - Google Patents
Space heating and cooling deviceInfo
- Publication number
- JPH024180A JPH024180A JP63152218A JP15221888A JPH024180A JP H024180 A JPH024180 A JP H024180A JP 63152218 A JP63152218 A JP 63152218A JP 15221888 A JP15221888 A JP 15221888A JP H024180 A JPH024180 A JP H024180A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heating
- cooling
- heat exchanger
- supply path
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 239000000446 fuel Substances 0.000 claims abstract description 36
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 239000002918 waste heat Substances 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 8
- 238000007791 dehumidification Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- Sorption Type Refrigeration Machines (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃料電池による電力供給、及び、空調設備に
よる冷暖房と除湿を、合理的にシステム化してエネルギ
ー効率良好に実現でき、集合住宅や地域を対象にした電
力供給と空調に殊に有効な冷暖房装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention can rationally systemize power supply by fuel cells and heating, cooling, and dehumidifying by air conditioning equipment to achieve good energy efficiency, and is suitable for housing complexes and The present invention relates to a heating and cooling system that is particularly effective for power supply and air conditioning in a region.
従来、燃料電池と空調設備を合理的にシステム化した設
備は無かった。Until now, there was no equipment that rationally integrated fuel cells and air conditioning equipment into a system.
しかし、近年、集合住宅や地域などを対象にした燃料電
池による電力供給が、送電に伴う経費や電力ロス等の面
で有利なために注目されており、他方、集合住宅や地域
などを対象にした集中式の空調が設備の経費やメンテナ
ンス等の面で有利なために注目されており、したがって
、燃料電池と空調設備を合理的にシステム化したエネル
ギー効率良好な冷暖房装置が強く望まれている。However, in recent years, fuel cell power supply for housing complexes and local areas has attracted attention because it is advantageous in terms of costs and power loss associated with power transmission. Centralized air conditioning is attracting attention because it is advantageous in terms of equipment costs and maintenance, and there is therefore a strong demand for energy-efficient heating and cooling equipment that rationally integrates fuel cells and air conditioning equipment into a system. .
本発明は、上記要望に十分に応じられる冷暖房装置を提
供する点にある。An object of the present invention is to provide a heating and cooling system that can fully meet the above requirements.
本発明の特徴構成は、吸収式冷房機の発生器に、燃料電
池からの排熱回収用流体を加熱源として供給する熱源供
給路を接続し、室内機に冷房用及び暖房用熱交換器を、
室内への吹出風路において冷房用熱交換器の下流側に暖
房用熱交換器が位置する状態で設け、前記吸収式冷房機
と前記冷房用熱交換器を冷媒供給路で接続し、前記燃料
電池と前記暖房用熱交換器を排熱回収用熱媒供給路で接
続し、前記熱源供給路及び排熱回収用熱媒供給路に、前
記熱源供給路のみを流通させる冷房状態、前記排熱回収
用熱媒供給路のみを流通させる暖房状態、前記熱源供給
路及び排熱回収用熱媒供給路の両方を流通させる除湿状
態を選択する流通状態切換手段を設けたことにあり、そ
の作用効果は次の通りである。The characteristic configuration of the present invention is that a heat source supply path that supplies waste heat recovery fluid from a fuel cell as a heat source is connected to the generator of an absorption type air conditioner, and a heat exchanger for cooling and heating is connected to the indoor unit. ,
A heating heat exchanger is provided downstream of a cooling heat exchanger in the air outlet to the room, and the absorption type air conditioner and the cooling heat exchanger are connected by a refrigerant supply path, and the fuel A cooling state in which the battery and the heating heat exchanger are connected by a heat medium supply path for exhaust heat recovery, and only the heat source supply path is allowed to flow through the heat source supply path and the heat medium supply path for exhaust heat recovery; Effects of the present invention include a flow state switching means for selecting a heating state in which only the heat medium supply path for recovery is circulated, and a dehumidification state in which both the heat source supply path and the heat medium supply path for exhaust heat recovery are circulated, and the operation and effect thereof are provided. is as follows.
〔作 用〕
つまり、燃料電池において、ガス燃料の酸化に伴って大
量の熱が発生すると共に、未反応のガス燃料が排ガス中
に含まれることを有効利用し、燃料電池からの排熱回収
用流体を吸収式冷房機の発生器に加熱源として供給し、
冷房時及び除湿時に、燃料電池の排熱を有効利用してエ
ネルギー効率良好に吸収式冷房機を運転し、室内機の冷
房用熱交換器に吸収式冷房機からの冷媒を供給する。[Function] In other words, in a fuel cell, a large amount of heat is generated due to the oxidation of the gas fuel, and the fact that unreacted gas fuel is contained in the exhaust gas is effectively used to recover the exhaust heat from the fuel cell. supplying the fluid to the generator of the absorption chiller as a heating source;
During cooling and dehumidification, the absorption type air conditioner is operated with good energy efficiency by effectively utilizing the exhaust heat of the fuel cell, and the refrigerant from the absorption type air conditioner is supplied to the cooling heat exchanger of the indoor unit.
また、暖房時及び除湿時に燃料電池からの排熱回収用熱
媒を室内機の暖房用熱交換器に供給し、吸収式冷房機を
暖房機に兼用するよりもエネルギー効率良好に暖房と除
湿を実行できる。In addition, during heating and dehumidification, the heat medium for recovering exhaust heat from the fuel cell is supplied to the heating heat exchanger of the indoor unit, allowing heating and dehumidification to be performed with better energy efficiency than when an absorption air conditioner is also used as a heater. Can be executed.
さらに、除湿運転に際して、冷房用熱交換器に冷媒が、
かつ、暖房用熱交換器に熱媒が夫々供給されると共に、
室内への吹出風路において冷房用熱交換器が上流側にか
つ暖房用熱交換器が下流側に配置されているから、室内
からの空気が、先ず冷房用熱交換器による冷却で水分の
凝縮除去作用を受け、その後で暖房用熱交換器による加
熱作用でほぼ元の温度に戻され、室温を大きく変えるこ
と無く良好に室内空気が除湿される。Furthermore, during dehumidification operation, refrigerant flows into the cooling heat exchanger.
And, while the heating medium is supplied to each of the heating heat exchangers,
Since the cooling heat exchanger is placed on the upstream side and the heating heat exchanger on the downstream side of the air outlet into the room, the air from the room is first cooled by the cooling heat exchanger and moisture condenses. After receiving the removal action, the temperature is returned to approximately the original temperature by the heating action of the heating heat exchanger, and the indoor air is effectively dehumidified without significantly changing the room temperature.
その上、燃料電池と吸収式冷房機及び暖房用熱交換器を
接続する熱源供給路及び排熱回収用熱媒供給路に、冷暖
房及び除湿切換えのための流通状態切換手段を設けてあ
るから、吸収式冷房機を暖房機に兼用して、吸収式冷房
機と室内機の間で熱運搬流路に設けた複雑な２個の四方
弁で切換えを行う場合よりも、流通状態切換手段を、簡
単な開閉弁やポンプの運転停止切換スイッチなどの利用
によって簡単で安価にできる。In addition, the heat source supply path and the heat medium supply path for exhaust heat recovery that connect the fuel cell, the absorption type air conditioner, and the heating heat exchanger are provided with a flow state switching means for switching between cooling/heating and dehumidification. Compared to the case where the absorption type air conditioner is also used as a heater and the switching is performed using two complicated four-way valves installed in the heat transport flow path between the absorption type air conditioner and the indoor unit, the flow state switching means is This can be done easily and inexpensively by using simple on-off valves and pump operation/stop switches.
その結果、燃料電池による電力供給と、燃料電池の排熱
を有効利用したエネルギー効率の良い冷暖房及び除湿が
可能であり、空調状態切換構成が簡単な、全体として、
集合住宅や地域などを単位とするに極めて優れた冷暖房
装置を提供できるようになった。As a result, energy-efficient heating, cooling, and dehumidification are possible by effectively utilizing fuel cell power supply and fuel cell exhaust heat, and the air conditioning state switching configuration is simple.
It is now possible to provide extremely superior heating and cooling systems for individual housing complexes and areas.
次に、第１図により実施例を示す。 Next, an example will be shown with reference to FIG.
吸収式冷房機（１）の発生器（１ａ）に燃料電池（２）
を高温水循環用の熱源供給路（３）で接続し、燃料路（
４）からのガス燃料と給気路（５）からの酸化剤との反
応によって燃料電池（２）で生じた電力を需要先に供給
できるように構成し、燃料電池（２）の排ガス路（７）
に送られる排ガスの熱エネルギーにより排熱回収用熱交
換部（２ａ）で加熱した高温水を、発生器（１ａ）の熱
交換部に加熱源として熱源供給路（３）により供給でき
るように構成しである。A fuel cell (2) is installed in the generator (1a) of the absorption air conditioner (1).
are connected with a heat source supply line (3) for high-temperature water circulation, and a fuel line (
The fuel cell (2) is configured to supply electric power generated by the reaction between the gas fuel from the fuel cell (4) and the oxidizing agent from the air supply path (5) to a consumer, and the exhaust gas path ( 7)
The structure is such that high-temperature water heated in the exhaust heat recovery heat exchange section (2a) by the thermal energy of the exhaust gas sent to the generator (1a) can be supplied as a heat source to the heat exchange section of the generator (1a) through the heat source supply path (3). It is.
ガス燃料は例えば水素、メタノール、炭化水素などであ
り、酸化剤は例えば空気、酸素などである。The gaseous fuel is, for example, hydrogen, methanol, hydrocarbon, etc., and the oxidizing agent is, for example, air, oxygen, etc.
排熱回収用熱交換部（２ａ）を、高温の反応生成ガス中
に含まれる残存ガス燃料を後燃焼させて得た高温排ガス
で水を加熱するように形成しである。The exhaust heat recovery heat exchange section (2a) is formed to heat water with high-temperature exhaust gas obtained by post-combusting the residual gas fuel contained in the high-temperature reaction product gas.
室内機（８） に冷房用熱交換器（８ａ）と暖房用熱交
換器（８ｂ）を設け、ファン（８Ｃ）による室内への吹
出風路に右いて冷房用熱交換器（８ａ）の下流側に暖房
用熱交換器（８ｂ）を配置しである。The indoor unit (8) is equipped with a cooling heat exchanger (8a) and a heating heat exchanger (8b), and is located downstream of the cooling heat exchanger (8a) to the right of the indoor air blowing path by the fan (8C). A heating heat exchanger (8b) is placed on the side.
吸収式冷房機（１） の蒸発器（１ｂ）と冷房用熱交換
器（８ａ）を、蒸発器（１ｂ）で冷却された冷水を循環
させる冷媒供給路（９） で接続し、熱源供給路（３）
と暖房用熱交換器（８ｂ）を、燃料電池（２）からの高
温水を循環させる排熱回収用熱媒供給路（１０）で接続
しである。The evaporator (1b) of the absorption air conditioner (1) and the cooling heat exchanger (8a) are connected by a refrigerant supply path (9) that circulates the cold water cooled by the evaporator (1b), and the heat source supply path (3)
and a heating heat exchanger (8b) are connected by an exhaust heat recovery heat medium supply path (10) that circulates high temperature water from the fuel cell (2).
熱源供給路（３） のうち排熱回収用熱媒供給路（１０
）の接続箇所よりも吸収式冷房機（１）側に、一対の第
１開閉弁（ｖｌ）を往路部分と復路部分に振分けて設け
、一対の第２開閉弁（ｖ２）を排熱回収用熱媒供給路（
１０）の往路部分と復路部分に振分けて設けてある。Among the heat source supply paths (3), the heat medium supply path for exhaust heat recovery (10
) A pair of first on-off valves (vl) are provided on the side of the absorption air conditioner (1), separated into an outgoing section and an incoming section, and a pair of second on-off valves (v2) are provided for exhaust heat recovery. Heat medium supply path (
10) are divided into an outgoing portion and a returning portion.
第１開閉弁（Ｖ、）、第２開閉弁（ｖ２）、及び、冷媒
供給路（９）のポンプ（Ｐ２）を操作する空調状態切換
操作部（１１）を設けて、下記（イ）ないしくハ）項の
運転状態を選択できるように構成しである。An air conditioning state switching operation unit (11) for operating the first on-off valve (V), the second on-off valve (v2), and the pump (P2) of the refrigerant supply path (9) is provided, and the following (a) is not included. In addition, the configuration is such that the operating state in item C) can be selected.
（イ）冷房運転
第１開閉弁（ｖｌ）を開き、第２開閉弁（ｖ２）を閉じ
、ポンプ（Ｐ２）を作動させて、燃料電池（２）の排熱
を熱源として吸収式冷房機（１）を運転し、冷房用熱交
換器（８ａ）で室内空気を冷却する。(b) Cooling operation Open the first on-off valve (vl), close the second on-off valve (v2), operate the pump (P2), and use the exhaust heat of the fuel cell (2) as the heat source to operate the absorption air conditioner ( 1) is operated to cool indoor air using the cooling heat exchanger (8a).
（ロ）暖房運転
第１開閉弁（Ｖ、）を閉じ、第２開閉弁（ｖ２）を開き
、ポンプ（Ｐ２）を停止し、燃料電池（２）の排熱で高
温にしだ熱媒を暖房用熱交換器（８ｂ）に直接的に供給
し、暖房用熱交換器（８ｂ）で室内空気を加熱する。(b) Heating operation Close the first on-off valve (V,), open the second on-off valve (v2), stop the pump (P2), and heat the heating medium to a high temperature with the exhaust heat of the fuel cell (2). The indoor air is directly supplied to the heating heat exchanger (8b), and the indoor air is heated by the heating heat exchanger (8b).
（八）除湿運転
第１開閉弁（Ｖ＋）及び第２開閉弁（ｖ２）を夫々適度
な設定開度で開き、ポンプ（Ｐ２）を運転し、室内空気
を先ず冷房用熱交換器（８ａ）で冷却して、室内空気中
の水分を凝縮させて除去し、その冷却された室内空気を
暖房用熱交換器（８ｂ）でほぼ室温に加゛熱し、室温を
ほとんど変えずに室内を除湿する。(8) Dehumidification operation Open the first on-off valve (V+) and the second on-off valve (v2) at appropriate opening settings, operate the pump (P2), and first transfer indoor air to the cooling heat exchanger (8a). to condense and remove the moisture in the indoor air, and then heat the cooled indoor air to almost room temperature in the heating heat exchanger (8b), dehumidifying the room without changing the room temperature. .
次に別実施例を説明する。 Next, another embodiment will be described.
燃料電池（２）から吸収式冷房機（１）に加熱源を供給
するに、例えば排ガスを発生器（１ａ）の熱交換部に供
給したり、発生器（１ａ）の加熱用バ＝すに燃料として
供給したり、その他適当な流体を利用でき、それら流体
を排熱回収用流体と総称する。In order to supply a heat source from the fuel cell (2) to the absorption air conditioner (1), for example, exhaust gas is supplied to the heat exchange section of the generator (1a), or to the heating bar of the generator (1a). It can be supplied as fuel or other suitable fluids can be used, and these fluids are collectively referred to as exhaust heat recovery fluids.
燃料電池（２）から室内機（８）の暖房用熱交換器（８
ｂ）に供給する排熱回収用熱媒は、排ガス、その他適当
な流体でもよい。The heating heat exchanger (8) from the fuel cell (2) to the indoor unit (8)
The heating medium for exhaust heat recovery supplied in b) may be exhaust gas or other suitable fluid.
吸収式冷房機（１）に供給する排熱回収用流体と、室内
機（８）に供給する排熱回収用熱媒を別種にし、第２図
に示すように熱源供給路（３）と排熱回収用熱媒供給路
（１０）を夫々独立系に形成し、２個の排熱回収用熱交
換部（２ａ）を燃料電池（２）に設けてもよい。The fluid for exhaust heat recovery supplied to the absorption type air conditioner (1) and the heat medium for exhaust heat recovery supplied to the indoor unit (8) are made of different types, and the heat source supply path (3) and exhaust heat are separated as shown in Figure 2. The heat medium supply paths (10) for heat recovery may be formed as independent systems, and two heat exchange parts (2a) for exhaust heat recovery may be provided in the fuel cell (2).
冷暖房及び除湿運転を選択するに、例えば、利用する弁
の構造や設置数や配置などを適当に変更したり、第２図
に示すように弁を無くしてポンプ（ＰＩ）、 （Ｐ２）
、 （Ｐ３）の運転停止切換だけで実行できるように構
成したり、その他適当な構成を利用でき、それらを流通
状態切換手段と総称する。When choosing between air conditioning, heating, and dehumidifying operations, for example, you can change the structure, number, and arrangement of valves to be used, or eliminate valves and use a pump (PI) or (P2) as shown in Figure 2.
, (P3), or any other suitable configuration can be used, and these are collectively referred to as flow state switching means.
燃料電池（２）、吸収式冷房機（１）、室内機（８）の
型式や構造などは適宜選定できる。The types and structures of the fuel cell (2), absorption air conditioner (1), and indoor unit (8) can be selected as appropriate.
第１図は本発明の実施例を示す概念図、第２図は本発明
の別実施例を示す概念図である。
（１）・・・・・・吸収式冷房機、（１ａ）・・・・・
・発生器、（２）・・・・・・燃料電池、（３）・・・
・・・熱源供給路、（８）・・・・・・室内機、（８ａ
）・・・・・・冷房用熱交換器、（８ｂ）・・・・・・
暖房用熱交換器、（９）・・・・・・冷媒供給路、（１
０）・・・・・・排熱回収用熱媒供給路。FIG. 1 is a conceptual diagram showing an embodiment of the invention, and FIG. 2 is a conceptual diagram showing another embodiment of the invention. (1)...Absorption air conditioner, (1a)...
・Generator, (2)...Fuel cell, (3)...
... Heat source supply path, (8) ... Indoor unit, (8a
)... Cooling heat exchanger, (8b)...
Heating heat exchanger, (9)... Refrigerant supply path, (1
0)... Heat medium supply path for exhaust heat recovery.
Claims (1)
）からの排熱回収用流体を加熱源として供給する熱源供
給路（３）を接続し、室内機（８）に冷房用及び暖房用
熱交換器（８ａ）、（８ｂ）を、室内への吹出風路にお
いて冷房用熱交換器（８ａ）の下流側に暖房用熱交換器
（８ｂ）が位置する状態で設け、前記吸収式冷房機（１
）と前記冷房用熱交換器（８ａ）を冷媒供給路（９）で
接続し、前記燃料電池（２）と前記暖房用熱交換器（８
ｂ）を排熱回収用熱媒供給路（１０）で接続し、前記熱
源供給路（３）及び排熱回収用熱媒供給路（１０）に、
前記熱源供給路（３）のみを流通させる冷房状態、前記
排熱回収用熱媒供給路（１０）のみを流通させる暖房状
態、前記熱源供給路（３）及び排熱回収用熱媒供給路（
１０）の両方を流通させる除湿状態を選択する流通状態
切換手段を設けてある冷暖房装置。A fuel cell (2) is installed in the generator (1a) of the absorption air conditioner (1).
) is connected to the heat source supply path (3) that supplies waste heat recovery fluid from the A heating heat exchanger (8b) is provided downstream of the cooling heat exchanger (8a) in the outlet air path, and the absorption type air conditioner (1)
) and the cooling heat exchanger (8a) are connected by a refrigerant supply path (9), and the fuel cell (2) and the heating heat exchanger (8a) are connected.
b) is connected to the heat medium supply path for exhaust heat recovery (10), and to the heat source supply path (3) and the heat medium supply path for exhaust heat recovery (10),
A cooling state in which only the heat source supply path (3) flows, a heating state in which only the heat medium supply path for exhaust heat recovery (10) flows, and a heating state in which only the heat source supply path (3) and the heat medium supply path for exhaust heat recovery (
10) A heating and cooling device provided with a flow state switching means for selecting a dehumidifying state in which both of the above are caused to flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152218A JPH0760033B2 (en) | 1988-06-22 | 1988-06-22 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152218A JPH0760033B2 (en) | 1988-06-22 | 1988-06-22 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024180A true JPH024180A (en) | 1990-01-09 |
| JPH0760033B2 JPH0760033B2 (en) | 1995-06-28 |
Family
ID=15535661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63152218A Expired - Lifetime JPH0760033B2 (en) | 1988-06-22 | 1988-06-22 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760033B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238078A (en) * | 1990-11-08 | 1993-08-24 | Toyota Jidosha Kabushiki Kaisha | Electric control apparatus for four-wheel steering vehicle |
| JP2002147890A (en) * | 2000-11-14 | 2002-05-22 | Ishikawajima Harima Heavy Ind Co Ltd | Air-conditioning method and air conditioner |
-
1988
- 1988-06-22 JP JP63152218A patent/JPH0760033B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238078A (en) * | 1990-11-08 | 1993-08-24 | Toyota Jidosha Kabushiki Kaisha | Electric control apparatus for four-wheel steering vehicle |
| JP2002147890A (en) * | 2000-11-14 | 2002-05-22 | Ishikawajima Harima Heavy Ind Co Ltd | Air-conditioning method and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0760033B2 (en) | 1995-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |