JPS62502605A - Device for detecting harmful substances in the air supplied to private rooms used for human stay - Google Patents

Device for detecting harmful substances in the air supplied to private rooms used for human stay

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Publication number
JPS62502605A
JPS62502605A JP50313486A JP50313486A JPS62502605A JP S62502605 A JPS62502605 A JP S62502605A JP 50313486 A JP50313486 A JP 50313486A JP 50313486 A JP50313486 A JP 50313486A JP S62502605 A JPS62502605 A JP S62502605A
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Prior art keywords
air
sensor
casing
opening
pulsating
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Japanese (ja)
Inventor
ヘルター，ハインツ
イーゲルビユーシエル，ハインリツヒ
グレーシユ，ハインリツヒ
デーヴエルト，ヘルベルト
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ヘルタ−，ハインツ
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H2003/0683—Filtering the quality of the filter or the air being checked

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • 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】 人間の滞在のために用いられる個室に供給された空気内の有害物質を検出するた めの装置本発明は人間の滞在のために用いられる、特に自動車の個室に供給され た空気内の有害物質を単数又は複数のセンサを用いて検出しまた、この単数又は 複数のセンサによって検出された単数又は複数の検出値に応じて、フィルタ装置 及び（又は）換気装置の表示及び（又は）制御及び（又は）調節を行なうための 装置に関する。[Detailed description of the invention] To detect harmful substances in the air supplied to private rooms used for human stay. The present invention is intended for use in the accommodation of people, especially for the compartments of motor vehicles. Detect harmful substances in the air using one or more sensors, and Depending on the single or multiple detection values detected by the plurality of sensors, the filter device and/or for displaying and/or controlling and/or regulating ventilation equipment. Regarding equipment.

人間の滞在のために用いられる個室に供給される空気内に含まれている有害物質 を除去するためには、まずその有害物質を検知し、続いて信号及び（又は）調節 値を形成し、そしてフィルタ装置及び（又は）換気装置をオン・オフ切換えする ことが必要である。Harmful substances contained in the air supplied to private rooms used for human accommodation To eliminate the harmful substance, first detect the harmful substance, then signal and/or control the forming a value and switching the filter device and/or ventilation device on and off It is necessary.

空気内の有害物質を捕捉するために分析器を配置することは既に公知であり、し かしこの分析器はそれが２〜３の有害物質成分を捕捉可能なだけであるというこ とを別にしても、その製造及び作動は比較的に経費の高いものである。It is already known to deploy analyzers to capture harmful substances in the air. However, this analyzer is limited in that it is only capable of capturing a few toxic components. Apart from that, they are relatively expensive to manufacture and operate.

更に普通の空気汚染への応動という要求に一般的に答える半導体センサをこの目 的のために用いることも可能である。しかしこのセ／すの応動感度に関する作業 範囲は、多くの有害物質の、人間にとってまだ危険ではない濃度よシもずっと上 にある。更にこの半導体センサは監視されるべき空気流の温度変化及び種々異な る流れ速度に対して敏感である。更に特に低めの濃度範囲におけるこのセンサの 応動時間とその浄化時間は、例えば自動車個室内のフィルタ装置及び（又は）通 気装置の制御のために使用可能とするには高過ぎる。In addition, we have developed a semiconductor sensor that generally answers the requirements of responding to common air pollution. It can also be used for purposes. However, this work on the response sensitivity of The range extends well beyond concentrations of many hazardous substances that are not yet dangerous to humans. It is in. Furthermore, this semiconductor sensor is capable of detecting temperature changes and various Sensitive to flow velocity. Furthermore, the sensor's performance, especially in the lower concentration range, The response time and its purification time can be determined, for example, by filtering and/or ventilation in the vehicle compartment. too expensive to be usable for controlling air equipment.

この先行技術から出発して本発明の課題は、上記の各欠点を回避しつつ経費が安 くかつ保守が不要でかつ必要スペースの小さな装置であって、しかも一般的に生 じ得る全ての空気汚損に応動しかつ確実な通報を保証するものを提供することで ある。Starting from this prior art, the object of the present invention is to avoid the above-mentioned disadvantages while reducing costs. It is a low-maintenance device that requires little space and is commonly used in production. by providing a response to all possible air pollution and ensuring reliable reporting. be.

上記の課題は本発明によれば、センナがケーシング内に配置されており、このセ ンサの流入側が該ケーシングの内部で、破監視空気流の貫通のための測定開口の 手前に配置されており、この測定開口がケーシングの空気室内に接続されており 、この空気室内には脈動機構が配置されておシ、更に該空気室の、センサと反対 側のシリンダ室内に単数又は複数の空気流入開口が接続していることによって解 決された。この構成によって、センサに常に調節された空気量が供給され、それ によって該センサが流速の変化に左右されることなく所望の成果を伝達可能であ る。使用された振動ポンプ機構によってセンサへの一定した空気接触流過が確実 となシ、浄化時間が短くなる。According to the present invention, the above problem can be solved because the senna is arranged inside the casing. The inlet side of the sensor is located inside the casing with a measuring opening for penetration of the monitoring air flow. This measuring opening is connected to the air chamber of the casing. , a pulsating mechanism is placed in this air chamber, and a pulsating mechanism is placed in the air chamber opposite to the sensor. Solved by connecting one or more air inlet openings in the side cylinder chamber. It was decided. This configuration ensures that the sensor is constantly supplied with a regulated amount of air and that This allows the sensor to transmit the desired results without being affected by changes in flow velocity. Ru. The vibration pump mechanism used ensures a constant air contact flow to the sensor Tonashi, purification time becomes shorter.

また空気室の、センサに面したシリンダ室から単数又は複数の空気流出開口が走 出接続していると有利であシ、これによって十分に均一で一定した空気流がセン サに負荷せしめられる。The air chamber also has one or more air outlet openings running from the cylinder chamber facing the sensor. It is advantageous to have an air flow connected to the The load is placed on the server.

センサの流出側範囲内でケーシング壁内に複数の空気流出通路が配置され、この 通路から、ケーシング内に流入した空気量の内の、センサ負荷のために用いられ た部分が流出可能である。Several air outflow channels are arranged in the casing wall in the outflow area of the sensor, and this The amount of air flowing into the casing from the passage is used for the sensor load. The remaining part can flow out.

脈動機構が、振動機構と連結されたピストンによって形成され、この際に該振動 機構が有利には、センサと反対側のケーシング閉鎖体を形成し、それによって全 体として極めてコンパクトな構造ユニットが形成されている。A pulsating mechanism is formed by a piston coupled to a vibrating mechanism, in which case the pulsating mechanism The mechanism advantageously forms a casing closure opposite the sensor, so that the entire As a whole, an extremely compact structural unit is formed.

本発明の別の実施態様によれば、ピストンが、種々異なる流れ方向において種々 異なる流れ抵抗を有する。According to another embodiment of the invention, the pistons are arranged in different directions in different flow directions. have different flow resistance.

ピストンが振動せしめられると、該ピストンはセンサに向げられた空気流を形成 する。この目的のためにピストンの外面にのこ歯状の成形部が、その拡大範囲が センサへの方向に向けられるように形成されている。When the piston is caused to vibrate, it creates an air flow directed towards the sensor. do. For this purpose, a serrated molding on the outer surface of the piston has a wide range of expansion. The sensor is configured to be oriented toward the sensor.

こうしてピストンの振動によって予め決められた空気流が形成され、この際に同 時にケーシング内への、監視されるべき空気の吸込みが行なわれる。In this way, a predetermined air flow is created by the vibration of the piston; Sometimes air is sucked into the housing to be monitored.

空気流入開口及び空気流出開口がそれぞれの貫通横断面において非対称的に形成 されている。この各開口は例えば空気室から外方へ向けてディフューザ状に拡大 形成されている。これによって、振動機構によって生ぜしめられた空気脈動にお いて、センサへの十分な量の接触流過を保証するのに十分な空気がケーシング内 に流入せしめられる。Air inflow and air outflow openings are asymmetrically formed in each through-cross section has been done. For example, each opening expands outward from the air chamber like a diffuser. It is formed. This eliminates the air pulsations caused by the vibration mechanism. with enough air in the casing to ensure a sufficient amount of contact flow to the sensor. It is forced to flow into the country.

有利には空気室内に、例えば空気加熱器としての空気調整機構が配設されている 。この機構は空気室内で、′脈動機構と測定開口との間の範囲内に位置する。こ の調整機構によって、センサに供給される空気量の均一な温度形成が可能となり 、それによって該センサがその最適な応動範囲内で負荷される。従ってこのセン サは極めて温度に左右されない信号を発する。これによって低い作業範囲内のセ ンサ特性曲線が、低い浸度範囲内でも有害物質報知が行なわれるように形成され る。An air conditioning system, for example an air heater, is preferably arranged in the air chamber. . This mechanism is located within the air chamber in the area between the pulsating mechanism and the measuring aperture. child The adjustment mechanism enables uniform temperature formation of the amount of air supplied to the sensor. , whereby the sensor is loaded within its optimal response range. Therefore, this sensor The sensor emits a signal that is extremely temperature independent. This allows for a lower range of The sensor characteristic curve is designed so that hazardous substance notification is performed even in the low immersion range. Ru.

更に本発明の実施態様によれば脈動機構に加熱装置が配属されている。この装置 は有利にはケーシング壁内及び（又は）ケーシング壁と脈動機構との間及び（又 は）脈動機構の外面に配置される。例えば電気的な加熱巻線としてのこの付加的 な加熱装置によって、監視されるべき空気量の付加的な加熱が振動ピストンの範 囲内で既に可能であり、これは特に冬の期間のために極めて有利である。Furthermore, according to an embodiment of the invention, a heating device is assigned to the pulsating mechanism. this device is preferably within the casing wall and/or between the casing wall and the pulsation mechanism and/or ) is placed on the outer surface of the pulsating mechanism. This additional as e.g. electrical heating winding Additional heating of the air volume to be monitored is achieved by means of a heating device within the range of the vibrating piston. Already possible within the enclosure, this is extremely advantageous especially for the winter period.

更に本発明の別の実施態様によればセンサが耐圧性のケーシング内に配置されて おり、予備調整された空気量がこのケーシング内で圧縮されてセンサに供給され 、それによって極めて僅かな発臭材の跡もセンサによって測定技術的に捕捉され 、調節パルス及び（又は）報知信号の形成のために用いられる。Furthermore, according to another embodiment of the invention, the sensor is arranged in a pressure-tight casing. The preconditioned air volume is compressed within this casing and supplied to the sensor. , so that even the slightest traces of odorant can be detected by the sensor using measurement technology. , used for the formation of regulation pulses and/or notification signals.

更に本発明の実施態様によれば空気柱にセンサの流入側の手前で振動、特に高振 動数の振動が与えられる。Furthermore, according to an embodiment of the present invention, vibrations, particularly high vibrations, are generated in the air column before the inflow side of the sensor. Dynamic frequency vibration is given.

センサの流入側に作用するこの振動空気柱によって、センサの流入側にある不純 物存在が比較的に極めて早しめられ、この際に考えられる外側の流れによる影響 は外側ケーシングによって防がれている。This vibrating air column acting on the inlet side of the sensor removes impurities on the inlet side of the sensor. The existence of objects is relatively accelerated, and the possible influence of external flows at this time is prevented by the outer casing.

本発明の範囲内ではまた、可及的に一定した温度状態を形成するためにセンサの 流入側を加熱することも可能である。Within the scope of the invention, it is also possible to use a sensor in order to create a temperature condition that is as constant as possible. It is also possible to heat the inlet side.

図面には本発明の１実施例が示されており、第１図は本発明の装置の断面図、第 ２図は第１図の脈動機構部分を拡大して示す図である。An embodiment of the invention is shown in the drawings; FIG. 1 is a sectional view of the device of the invention; FIG. 2 is an enlarged view of the pulsation mechanism portion of FIG. 1.

符号１はケーシング２内に配置されたセンサを示す。Reference numeral 1 indicates a sensor arranged inside the casing 2.

センサ１の流入側の手前でケーシング２内に測定開口９が配置されている。この 測定開口９はケーシング２の空気室５に接続している。この空気室５内には脈動 機構７が配置されている。空気室５の、センサ１と反対側のシリンダ室には空気 流入開口３が接続走入している。空気室５の、センサ１に面したシリンダ室から は空気流出開口４が接続走出している。センサ１の流出側範囲内では端面側のケ ーシング壁内に空気流出通路６が配置されている。A measuring opening 9 is arranged in the housing 2 in front of the inlet side of the sensor 1 . this The measuring opening 9 is connected to the air chamber 5 of the casing 2 . There is a pulsation inside this air chamber 5. A mechanism 7 is arranged. There is air in the cylinder chamber on the opposite side of the air chamber 5 from the sensor 1. The inflow opening 3 is connected and inserted. From the cylinder chamber of the air chamber 5 facing the sensor 1 The air outlet opening 4 connects and runs out. Within the outflow side range of sensor 1, the end surface side An air outlet passage 6 is arranged in the housing wall.

脈動機構７は、振動機構８に連結されたピストンから成っている。振動機構８は 、センサ１と反対側のケーシング閉鎖体を形成している。振動機構８としては有 利には磁石式自由振動機構が用いられる。The pulsating mechanism 7 consists of a piston connected to a vibrating mechanism 8. The vibration mechanism 8 , forming the casing closure opposite the sensor 1. As the vibration mechanism 8 A magnetic free vibration mechanism is used for this purpose.

特に第２図から分るように、脈動機構７として働くピストンはその外面にのこ歯 状の成形面を形成されており、その際に該成形面の幅広範囲がセンサ１の方へ向 けて配置されている。第２図の２重矢印は脈動機構゛　７の振動方向を示してお り、また他の矢印はセンサ１に向って送られる空気流を示している。In particular, as can be seen from Figure 2, the piston serving as the pulsating mechanism 7 has saw teeth on its outer surface. A shaped molded surface is formed, and at this time, a wide range of the molded surface is directed toward the sensor 1. It is located at a distance. The double arrow in Figure 2 indicates the vibration direction of the pulsating mechanism 7. and the other arrows indicate the airflow directed towards the sensor 1.

空気流入開口及び流出開口４は空気室５から外部へ向けてディフューザ状に拡大 している。The air inflow opening and outflow opening 4 expand outward from the air chamber 5 in the shape of a diffuser. are doing.

空気室５内には空気調整機構１０が配置されておシ、この機構は脈動機構７と測 定開口９との間の範囲に位置している。An air adjustment mechanism 10 is disposed within the air chamber 5, and this mechanism is connected to the pulsation mechanism 7. It is located in the range between the fixed aperture 9 and the fixed aperture 9.

分り易（するために図面には示されて℃・ないが脈動機構７には例えば電気的な 加熱巻線としての加熱装置が配属可能であシ、この加熱巻線はケーシング２の隣 接した壁部内で、ケーシング壁と脈動機構７との間又は脈動機構の外側ののこ歯 状成形部分の範囲内に配置され得る。Although it is not shown in the drawing for ease of understanding, the pulsating mechanism 7 includes, for example, electrical A heating device as a heating winding can be assigned, this heating winding next to the casing 2. Saw teeth between the casing wall and the pulsating mechanism 7 or outside the pulsating mechanism in the adjoining walls. may be located within the shaped molded portion.

国際調査報告 Ａ＋ＮＮＥＸ　Ｔｏ　ｒＴＦ、ＩＮＴＥＲ−ＮＡＴＩＯＮＡＬ　５ＥＡＲＣＨＲ 三Ｐ○ＲＴ　０ＮＤＥ−Ａ−３３０４３２４０９１０ＥＩ／８４　Ｎｏｒ、ｅinternational search report A+NNEX TorTF, INTER-NATIONAL 5EARCHR 3P○RT 0NDE-A-33043240910EI/84 Nor, e

Claims (16)

【特許請求の範囲】[Claims] １．人間の滞在のために用いられる、特に自動車の個室又は類似のものに供給さ れた空気内の有害物質を単数又は複数のセンサを用いて検出しまた、この単数又 は複数のセンサによつて検出された単数又は複数の検出値に応じて、フイルタ装 置及び（又は）換気装置の表示及び（又は）制御及び（又は）調節を行なうため の装置において、センサ（１）がケーシング（２）内に配置されており、このセ ンサ（１）の流入側が該ケーシング（２）の内部で測定開口（９）の手前に配置 されており、この測定開口（９）がケーシング（２）の空気室（５）内に接続し ており、この空気室（５）内には脈動機構（７）が配置されており、更に該空気 室（５）の、センサ（１）の反対側のシリンダ室内に単数又は複数の空気流入開 口（３）が接続していることを特徴とする、人間の滞在のために用いられる個室 に供給された空気内の有害物質を検出するための装置。1. used for human accommodation, especially provided in motor vehicle compartments or similar Detect harmful substances in the air using one or more sensors. filter installation according to one or more detection values detected by multiple sensors. display and/or control and/or adjustment of ventilation equipment; In this device, a sensor (1) is arranged in a casing (2), and this sensor The inflow side of the sensor (1) is located inside the casing (2) in front of the measurement opening (9). This measuring opening (9) is connected to the air chamber (5) of the casing (2). A pulsating mechanism (7) is disposed within this air chamber (5), and the air One or more air inlet openings in the cylinder chamber on the opposite side of the sensor (1) in the chamber (5). A private room used for the stay of a person, characterized by a connecting mouth (3) A device for detecting harmful substances in the air supplied to the ２．空気室（５）の、センサ（１）に面したシリンダ室から単数又は複数の空気 流出開口（４）が走出接続している、請求の範囲第１項記載の装置。2. Air from one or more air chambers (5) facing the sensor (1) 2. Device according to claim 1, characterized in that the outlet opening (4) has a running connection. ３．センサ（１）の流出側範囲内でケーシング壁内に単数又は複数の空気流出通 路（６）が配置されている、請求の範囲第１項又は第２項記載の装置。3. One or more air outflow passages are provided in the casing wall in the outflow area of the sensor (1). 3. Device according to claim 1 or 2, characterized in that a channel (6) is arranged. ４．脈動機構（７）が、振動機構（８）と連結されたピストンによつて形成され ている、請求の範囲第１項から第３項までのいずれか１項記載の装置。4. A pulsating mechanism (7) is formed by a piston connected to a vibrating mechanism (8). An apparatus according to any one of claims 1 to 3, wherein the apparatus comprises: ５．振動機構（８）が、センサ（１）と反対側のケーシング閉鎖体を形成してい る、請求の範囲第１項から第４項までのいずれか１項記載の装置。5. A vibration mechanism (8) forms a casing closure opposite the sensor (1). An apparatus according to any one of claims 1 to 4, wherein the apparatus comprises: ６．ピストンが、種々異なる流れ方向において種々異なる流れ抵抗を有する、請 求の範囲第１項から第５項までのいずれか１項記載の装置。6. The piston has different flow resistances in different flow directions. The apparatus according to any one of items 1 to 5. ７．ピストンの外面にのこ歯状の成形部が形成されており、その際に拡大範囲が センサ（１）への方向に向けられている、請求の範囲第１項から第６項までのい ずれか１項記載の装置。7. A serrated molded part is formed on the outer surface of the piston, which increases the expansion range. The objects according to claims 1 to 6, which are directed towards the sensor (1). The device according to any one of the above. ８．空気流入開口（３）及び空気流出開口（４）がそれぞれの貫通横断面におい て非対称的に形成されている、請求の範囲第１項から第７項までのいずれか１項 記載の装置。8. An air inflow opening (3) and an air outflow opening (4) are provided in each through-cross section. Any one of claims 1 to 7, which is asymmetrically formed The device described. ９．空気流入開口（３）と空気流出開口（４）とが空気室（５）から外方へ向け てデイフユーザ状に拡大形成されている、請求の範囲第１項から第８項までのい ずれか１項記載の装置。9. The air inflow opening (3) and the air outflow opening (4) are directed outward from the air chamber (5). Claims 1 to 8, which are enlarged into a diffuser shape. The device according to any one of the above. １０．空気室（５）内に、特に加熱装置としての空気調整機構（１０）が配設さ れている、請求の範囲第１項から第９項までのいずれか１項記載の装置。10. In the air chamber (5), an air adjustment mechanism (10), especially as a heating device, is arranged. 10. A device according to any one of claims 1 to 9, wherein: １１．空気調整機構（１０）が空気室（５）内で、脈動機構（７）と測定開口（ ９）との間に配置されている、請求の範囲第１項から第１０項までのいずれか１ 項記載の装置。11. An air conditioning mechanism (10) is located within the air chamber (5), and a pulsating mechanism (7) and a measuring aperture ( 9) Any one of claims 1 to 10, which is located between Apparatus described in section. １２．脈動機構（７）に加熱装置が配属されている、請求の範囲第１項から第１ １項までのいずれか１項記載の装置。12. Claims 1 to 1, in which a heating device is assigned to the pulsating mechanism (7). The device according to any one of items 1 to 1. １３．脈動機構（７）の加熱装置がケーシング壁内及び（又は）ケーシング壁と 脈動機構（７）との間及び（又は）脈動機構（７）の外面に配置されている、請 求の範囲第１項から第１２項までのいずれか１項記載の装置。13. The heating device of the pulsating mechanism (7) is located within and/or with the casing wall. pulsating mechanism (7) and/or on the outer surface of the pulsating mechanism (7). The apparatus according to any one of items 1 to 12. １４．センサ（１）が耐圧性のケーシング内に配置されており、予備調整された 空気量がこのケーシング内で圧縮されてセンサ（１）に供給される、請求の範囲 第１項から第１３項までのいずれか１項記載の装置。14. The sensor (1) is placed in a pressure-tight casing and is preconditioned. Claims in which a quantity of air is compressed within this casing and is supplied to the sensor (1). The device according to any one of items 1 to 13. １５．空気柱にセンサ（１）の流入側の手前で振動、特に高振動数の振動が与え られる、請求の範囲第１項から第１４項までのいずれか１項記載の装置。15. Vibrations, especially high-frequency vibrations, are applied to the air column before the inflow side of the sensor (1). 15. The device according to any one of claims 1 to 14, wherein: １６．センサ（１）の流入側が加熱されている、請求の範囲第１項から第１５項 までのいずれか１項記載の装置。16. Claims 1 to 15, wherein the inlet side of the sensor (1) is heated. The device according to any one of the preceding items.
JP50313486A 1985-04-23 1986-04-19 Device for detecting harmful substances in the air supplied to private rooms used for human stay Pending JPS62502605A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE3514588.9 1985-04-23
DE19853514588 DE3514588A1 (en) 1985-04-23 1985-04-23 Housing for sensors, preferably for use in protective cabins in motor vehicles with controlled and temperature-controlled air flow
DE3518320.9 1985-05-22
DE3522834.2 1985-06-26
DE3604340.0 1986-02-12

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DE3644821A1 (en) * 1986-12-31 1988-11-17 Gyulai Maria Dobosne Arrangement and method for installation and exchange of sensors in instruments of all types
DE9110325U1 (en) * 1991-08-21 1992-12-17 Robert Bosch Gmbh, 7000 Stuttgart Measuring device for detecting pollutants in the fresh air, in particular to be supplied to a vehicle compartment
FR2694394B1 (en) * 1992-07-30 1994-09-30 Valeo Thermique Habitacle Device for measuring the parameters of an air flow introduced into a passenger compartment of a motor vehicle.
DE19515886B4 (en) * 1995-04-29 2004-03-11 Paragon Ag Sensor arrangement for controlling the ventilation of interiors

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JPS577715A (en) * 1980-06-17 1982-01-14 Nippon Denso Co Ltd Controller for air conditioning of automobile
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JPS577715A (en) * 1980-06-17 1982-01-14 Nippon Denso Co Ltd Controller for air conditioning of automobile
JPS60228949A (en) * 1984-04-04 1985-11-14 ツエルベルス・アクチエンゲゼルシヤフト Method and device for detecting reducing gas in mixed gas tobe detected

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