JP2003507726A - Detector for detecting gas ratio in particle-containing gas stream - Google Patents
Detector for detecting gas ratio in particle-containing gas streamInfo
- Publication number
- JP2003507726A JP2003507726A JP2001519129A JP2001519129A JP2003507726A JP 2003507726 A JP2003507726 A JP 2003507726A JP 2001519129 A JP2001519129 A JP 2001519129A JP 2001519129 A JP2001519129 A JP 2001519129A JP 2003507726 A JP2003507726 A JP 2003507726A
- Authority
- JP
- Japan
- Prior art keywords
- holding element
- contact opening
- sensing
- conduit
- heating element
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1493—Details
- F02D41/1494—Control of sensor heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0014—Sample conditioning by eliminating a gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
(57)【要約】 この発明はピストン内燃機関における管路（１）を流れるガス混合気、特に熱排ガスの少なくとも一個の成分を検出する検知装置に関する。保持要素は少なくとも一個の接触開口（５）を介して管路（１）と接続している内部空間を有し、内部空間に検知要素（６）を有し，そして接触開口（５）の領域に付属された加熱要素（９）を備えている。 (57) Abstract: The present invention relates to a detection device for detecting at least one component of a gas mixture flowing in a pipe (1) in a piston internal combustion engine, in particular, a hot exhaust gas. The holding element has an internal space connected to the conduit (1) via at least one contact opening (5), has a sensing element (6) in the internal space, and has an area of the contact opening (5). And a heating element (9) attached to it.
Description
【０００１】
管路を流れて粒子を含有する特に熱排ガス混合気の少なくとも一個の成分を検
知器により検出する場合には、検知要素が直接にガス流にさらされることなく、
むしろガス流内に突き出す保持要素が設けられており、その内部空間に一致する
検知要素が配置されていて、保持要素における少なくとも一個の接触開口を介し
てガス流と接続している点に問題がある。粒子沈澱及び凝縮過程は、この接触開
口が検知要素の活性表面に対して時間の経つ内に与えられるから、僅かな時間の
後に十分な検知信号がもはや自由にならないことを導く。この欠点は、特にガス
構成の飛躍的機能と飛躍的回答が検知要素に対するガス流中の検出すべき排ガス
の拡散時間より短い時に生じる。When the detector detects at least one component of the particulate-containing hot exhaust gas mixture, which flows through the line, without directly exposing the sensing element to the gas flow,
Rather, the problem is that a holding element is provided which projects into the gas stream, a sensing element is arranged which corresponds to its internal space and is connected to the gas stream via at least one contact opening in the holding element. is there. The particle precipitation and condensation process leads to that after a short time, sufficient sensing signal is no longer free, since this contact opening is provided in time to the active surface of the sensing element. This drawback occurs especially when the breakthrough function and the breakthrough of the gas composition are shorter than the diffusion time of the exhaust gas to be detected in the gas flow to the sensing element.
【０００２】
この問題が明確に認められ得る程に、それぞれに挿入された検知要素が温度に
敏感になる。その外に、温度感知検知器は熱排ガス流への設置の場合に、例えば
ピストン内燃機関からの排ガスのガス構成の検出の場合に冷却による幅広い特性
領域にて検出すべき排ガスより低い温度に保持されなければならない。熱排ガス
と検知要素の活性表面との間の排ガスにより与えられた温度目盛りによって、保
温過程にもとづいて粒子及び／又は凝縮が検知装置の冷えた表面に沈澱して、こ
の際に検知要素に対する接触開口をふさぐ。凝縮は例えば異なった分子重量の炭
化水素及び亜硫酸或いは他のガス中の高温のガス状成分に基づく。To the extent that this problem can be clearly seen, the sensing elements inserted in each become temperature sensitive. In addition, the temperature-sensitive detector holds a temperature lower than the exhaust gas to be detected in a wide characteristic region by cooling when installed in a hot exhaust gas flow, for example when detecting the gas composition of the exhaust gas from a piston internal combustion engine. It must be. Due to the temperature scale provided by the exhaust gas between the hot exhaust gas and the active surface of the sensing element, particles and / or condensation settle out on the cold surface of the sensing device due to the heat retention process, in contact with the sensing element. Close the opening. Condensation is based on, for example, hydrocarbons of different molecular weight and hot gaseous components in sulfurous acid or other gases.
【０００３】
この欠点を回避するために、本発明により、管路と接続する保持要素を備えて
、その保持要素が少なくとも一個の接触開口を介して管路と接続している内部空
間を有し、内部空間に検知要素を有し、接触開口の領域に付属された加熱要素を
備えているピストン内燃機関の管路を流れるガス混合気、特に熱排ガスの少なく
とも一個の成分を検出する検知装置が提案されている。それと共に、熱ガス流と
接続している領域が管路を流れるガス混合気の温度と少なくとも同じか或いはそ
の温度より高いように接触開口の領域を加熱要素を介して温度調節する可能性が
与えられる。これにより、検知要素が例えば冷却により低い温度を有するならば
、粒子及び／又は凝縮の沈澱が確実に回避される。接触開口は迂回管路の形態に
形成され得て、その接触開口を通してガス混合気の部分流が接触するように検知
要素まで案内される。In order to avoid this drawback, according to the invention, a holding element is provided which is connected to the conduit, the holding element having an internal space which is connected to the conduit via at least one contact opening. A detection device for detecting at least one component of a gas mixture, in particular a hot exhaust gas, which has a detection element in its internal space and which is provided with a heating element attached to the region of the contact opening Proposed. At the same time, there is the possibility of thermoregulating the area of the contact opening via the heating element such that the area connected to the hot gas flow is at least equal to or above the temperature of the gas mixture flowing in the line. To be This ensures that precipitation of particles and / or condensation is avoided if the sensing element has a lower temperature, eg due to cooling. The contact opening can be formed in the form of a bypass conduit, through which the partial flow of the gas mixture is guided into contact with the sensing element.
【０００４】
この場合に、加熱要素が管路に向いて且つ接触開口を備える保持要素の壁に配
置されているならば、目的に合っている。さらに、この場合には目的に適って、
加熱要素が接触開口を取り囲むように配置されている。In this case, it is expedient if the heating element is arranged facing the line and on the wall of the holding element with the contact openings. Furthermore, in this case
A heating element is arranged to surround the contact opening.
【０００５】
一方の加熱要素と他方の検知保持体及び／又は検知要素との間の激しい熱損失
を回避するために、本発明の更なる構成において、加熱要素と保持要素の壁及び
／又は検知要素との間に熱絶縁する中間層が配置されているならば、目的に合っ
ている。これにより、ガス流に位置して実質的に加熱要素により区画された表面
と次に検知要素と結合された保持要素の部分との間に高い温度差を調整すること
を可能とするので、高い表面温度を維持するために、僅かな加熱出力のみで済み
、他方、検知要素の加熱は僅かな冷却出力により回避され得る。これは、特に本
発明の更なる構成において、保持要素及び／又は検知要素の内部空間が冷却媒体
供給部とのみ接続している場合に、好ましい。In order to avoid severe heat losses between the heating element on the one hand and the sensing carrier and / or the sensing element on the other hand, in a further configuration of the invention, the walls and / or sensing elements of the heating element and the holding element are provided. A heat-insulating intermediate layer is arranged between the element and the purpose. This makes it possible to adjust a high temperature difference between the surface located in the gas stream and substantially delimited by the heating element and then the part of the holding element which is connected to the sensing element, so that Only a small heating power is required to maintain the surface temperature, while heating of the sensing element can be avoided by a small cooling power. This is particularly preferred in a further configuration of the invention when the internal space of the holding element and / or the sensing element is only connected to the cooling medium supply.
【０００６】 本発明は概略図に基づいて詳細に説明される。[0006] The invention will be explained in greater detail on the basis of schematic drawings.
【０００７】
管路１を流れて粒子を含有する熱排ガス混合気のガス構成分を検出するために
、検知装置２が設けられており、その検知装置は中空室として形成されている保
持要素３を有し、その保持要素は開口を通して管路１の壁に管路横断面の或る値
だけ突き出している。保持要素３は少なくとも一個の接触開口５を備えている管
路側の前壁４を有する。前壁の内面には検知要素６が配置されており、その検知
要素により接触開口５に実際に流れ運動なしに流入するガス混合気との接触で管
路１を流れるガス混合気の少なくとも一成分が検出され得る。検知要素６は信号
導線７と８を介してここで詳細に図示されていない信号検出部と接続している。In order to detect the gas constituents of the hot exhaust gas mixture containing the particles flowing through the line 1, a detection device 2 is provided, which detection device is a holding element 3 formed as a hollow chamber. The retaining element projects through the opening into the wall of the conduit 1 by a certain value of the conduit cross section. The holding element 3 has a line-side front wall 4 with at least one contact opening 5. A sensing element 6 is arranged on the inner surface of the front wall, by which sensing element at least one component of the gas mixture flowing in the conduit 1 in contact with the gas mixture flowing into the contact opening 5 without actual flow movement. Can be detected. The sensing element 6 is connected via signal conductors 7 and 8 to a signal detector, not shown here in detail.
【０００８】
前壁４の管路１を向いた面には、加熱要素９が配置されており、加熱要素は接
触開口５を延長する窪み１０を有するので、接触開口５は実質的に加熱要素９に
より包囲される。加熱要素９は電気加熱要素として形成されていて、導線１１に
より電流供給部１２と接続しており、その電流供給部は場合によっては適切な制
御装置１３を介して伝達すべき加熱出力を含めて制御され得て、この制御は例え
ば管路１を流れるガス混合気の温度に依存して行われ得る。On the surface of the front wall 4 facing the conduit 1, a heating element 9 is arranged, the heating element having a recess 10 extending the contact opening 5, so that the contact opening 5 is substantially heated. Surrounded by 9. The heating element 9 is embodied as an electric heating element and is connected by a conductor 11 to a current supply 12, which optionally includes a heating output to be transmitted via a suitable control device 13. It can be controlled, for example, depending on the temperature of the gas mixture flowing through line 1.
【０００９】
供給管路１４と排出管路１５を介して中空室として形成されている保持要素３
が冷却媒体流と接続しているので、冷却媒体流の適切な温度依存量調整部を介し
て検知要素６がその最適作業温度を保持され得る。A holding element 3 formed as a hollow chamber via a supply line 14 and a discharge line 15
Is connected to the cooling medium flow, the sensing element 6 can be kept at its optimum working temperature via a suitable temperature-dependent amount adjustment of the cooling medium flow.
【００１０】
エネルギ−供給部１２を介して加熱要素９が電気的エネルギ−の作用を受ける
ので、管路１を向いた面９．１には、少なくとも管路１を流れるガス混合気の温
度に一致する或る温度が維持され、それで接触開口５の領域におけるガス混合気
から粒子及び／又は凝縮の沈澱が確実に回避され得るので、ガスと検知要素６の
活性接触表面との間に申し分のない接触がいつも保証されている。Since the heating element 9 is acted upon by electrical energy via the energy supply 12, the surface 9.1 facing the conduit 1 is at least at the temperature of the gas mixture flowing through the conduit 1. A certain temperature in agreement is maintained, so that precipitation of particles and / or condensation from the gas mixture in the region of the contact openings 5 can be reliably avoided, so that there is a good gap between the gas and the active contact surface of the sensing element 6. No contact is always guaranteed.
【００１１】
熱導管を介して検知要素６の加熱を回避するために、前壁４の管路１を向いた
外面には、加熱要素９と外面との間に熱絶縁中間層１６が配置されている。熱い
排ガスによって管路１の壁が加熱されるから、目的に適って、保持要素は適切な
外套状絶縁体１７を介して熱い管路壁を保護している。この場合に、熱いガスの
熱伝導による保持要素の加熱を最小にするために、保持要素の管路に突き出す端
領域にまで外套状熱絶縁体１７を引き出すことは、目的に適っている。さらに、
検知要素６と前壁４の内面との間に熱絶縁中間層１６の代わりに加熱要素に或い
はこれに追加的に熱絶縁中間層が配置されていて、この中間層により検知要素６
の加熱が熱導管によって少なくとも減少される。この場合に、保持要素３と検知
要素６との間の熱絶縁中間層は、実質的に検知要素６自体が冷却媒体流によって
冷却され、それで接触開口の検知付近領域の冷却がかなり回避されると言う利点
を有する。In order to avoid heating of the sensing element 6 via the heat conduit, the outer surface of the front wall 4 facing the conduit 1 is provided with a heat insulating intermediate layer 16 between the heating element 9 and the outer surface. ing. Since the hot exhaust gas heats the walls of the pipeline 1, the holding element protects the hot pipeline walls via a suitable jacket-shaped insulator 17 for the purpose. In this case, in order to minimize the heating of the holding element due to the heat conduction of the hot gas, it is expedient to pull the mantle thermal insulation 17 into the end region which projects into the duct of the holding element. further,
A heat-insulating intermediate layer is arranged between the sensing element 6 and the inner surface of the front wall 4 in place of or in addition to the heat-insulating intermediate layer 16 by means of this intermediate layer.
Heating is at least reduced by the heat conduit. In this case, the heat-insulating intermediate layer between the holding element 3 and the sensing element 6 is substantially cooled by the cooling medium flow in the sensing element 6 itself, so that cooling of the area near the sensing of the contact opening is largely avoided. Has the advantage of saying.
【００１２】
保持要素３と検知要素６との間の熱絶縁体の配置と検知要素６の冷却の場合に
は、さらに、ガス流に対して熱絶縁体なしに少なくとも保持要素３の管路１に突
き出す部分を形成する可能性があるので、ガス温度は接触開口５を形成する領域
を加熱するのに役立つ。それと共に、加熱出力の設定と調整の場合に常温開始段
階及び熱い運転段階が考慮され得る。In the case of the arrangement of the thermal insulation between the holding element 3 and the sensing element 6 and the cooling of the sensing element 6, furthermore, at least the conduit 1 of the holding element 3 without thermal insulation for the gas flow. The gas temperature serves to heat the area forming the contact opening 5, as it may form a portion protruding into the. Along with that, the cold start phase and the hot run phase can be taken into account when setting and adjusting the heating power.
【００１３】
保持要素３は金属材料に比較して低い熱伝導率を有する材料、例えばセラミッ
ク材料から少なくとも部分的に形成され得るので、少なくとも部分的領域のため
に熱絶縁体に関する要件が満たされ得る。この場合に、保持要素３の冷却媒体を
貫通する領域及び保持要素３と検知要素６との間の領域が追加的に熱絶縁カバ−
を備え得る。Since the retaining element 3 can be at least partially formed of a material having a low thermal conductivity compared to a metallic material, for example a ceramic material, the requirements regarding thermal insulation can be met for at least a partial area. . In this case, the region of the holding element 3 which penetrates the cooling medium and the region between the holding element 3 and the sensing element 6 additionally have a heat insulating cover.
Can be provided.
【図１】 本発明の熱排ガス混合気のガス構成分を検出する検知装置の概略図を
示す。FIG. 1 is a schematic view of a detection device for detecting a gas component of a hot exhaust gas mixture according to the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 レッパーホフ・ゲーアハルト ドイツ連邦共和国、52223 シュトルベル ク、プファラー−ガウ−ストラーセ、40ア ー (72)発明者 ルンプ・ハンス ドイツ連邦共和国、44319 ドルトムント、 アクトヴィッケダー・ヘルヴェーク、195 Ｆターム(参考） 2G004 BG17 BM10 2G046 AA03 BE05 BJ06 CA09 DB05 DC13 EB06 2G060 AA03 AE19 HB06 HC02 HC06 JA10 KA01 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Lepperhoff Gehrhardt 52223 Stolber, Germany Ku, Pfarr-Gau-Strasse, 40 - (72) Inventor Lump Hans Federal Republic of Germany, 44319 Dortmund, Actwickeder Hellweg, 195 F-term (reference) 2G004 BG17 BM10 2G046 AA03 BE05 BJ06 CA09 DB05 DC13 EB06 2G060 AA03 AE19 HB06 HC02 HC06 JA10 KA01
Claims (8)
スの少なくとも一個の成分を検出する検知装置において、管路（１）と接続する
保持要素（３）を備えて、その保持要素が少なくとも一個の接触開口（５）を介
して管路（１）と接続している内部空間を有し、内部空間に検知要素（６）を有
し、接触開口（５）の領域に付属された加熱要素（９）を備えていることを特徴
とする検知装置。1. A detection device for detecting at least one component of a gas mixture, in particular hot exhaust gas, flowing in a pipeline (1) of a piston internal combustion engine, comprising a holding element (3) connected to the pipeline (1). The holding element has an internal space which is connected to the conduit (1) via at least one contact opening (5), the sensing element (6) being in the internal space, the contact opening (5) A sensing device, characterized in that it comprises a heating element (9) attached to the area of.
持要素（３）の前壁（４）に配置されていることを特徴とする請求項１に記載の
検知装置。2. The heating element (9) is arranged on the front wall (4) of the holding element (3) with a contact opening (5) towards the conduit (1). The detection device described in 1.
求項１或いは請求項２に記載の検知装置。3. Sensing device according to claim 1 or 2, characterized in that the heating element (9) encloses the contact opening (5).
知要素（６）と壁（４）との間に熱絶縁する中間層（１６）が配置されているこ
とを特徴とする請求項１乃至請求項３のいずれか一項に記載の検知装置。4. An intermediate layer (16) for thermal insulation between the heating element (9) and the wall (4) of the holding element (3) and / or between the sensing element (6) and the wall (4). It is arrange | positioned, The detection apparatus as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned.
ることを特徴とする請求項１乃至請求項４のいずれか一項に記載の検知装置。5. Sensing device according to claim 1, characterized in that the axis of the contact opening (5) is aligned substantially across the gas flow.
却媒体供給部（１４、１５）と接続していることを特徴とする請求項１乃至請求
項５のいずれか一項に記載の検知装置。6. An internal space of the holding element (3) is connected to a cooling medium supply (14, 15) for cooling the sensing element (6). The detection device according to any one of 1.
を備えていることを特徴とする請求項１乃至請求項６のいずれか一項に記載の検
知装置。7. Sensing device according to claim 1, characterized in that the inner wall region of the holding element (3) acted on by the cooling medium is provided with a thermal insulator.
成ることを特徴とする請求項１乃至請求項７のいずれか一項に記載の検知装置。8. Sensing device according to claim 1, characterized in that the holding element (3) is at least partly made of a material having a low thermal conductivity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19933185.5 | 1999-07-15 | ||
| DE1999133185 DE19933185A1 (en) | 1999-07-15 | 1999-07-15 | Sensor arrangement for the detection of gas fractions in particle-laden gas flows |
| PCT/EP2000/005987 WO2001006246A1 (en) | 1999-07-15 | 2000-06-28 | Sensor assembly for detecting proportions of gas in gas streams containing particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003507726A true JP2003507726A (en) | 2003-02-25 |
Family
ID=7914899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001519129A Withdrawn JP2003507726A (en) | 1999-07-15 | 2000-06-28 | Detector for detecting gas ratio in particle-containing gas stream |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1112490A1 (en) |
| JP (1) | JP2003507726A (en) |
| DE (1) | DE19933185A1 (en) |
| WO (1) | WO2001006246A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10223154A1 (en) | 2002-05-16 | 2003-11-27 | Newfrey Llc | Joining system head, joining system and method for feeding and joining elements |
| NO330346B1 (en) * | 2009-07-20 | 2011-03-28 | Sinvent As | Local thermal management |
| DE102010033388A1 (en) * | 2010-08-04 | 2012-02-09 | Daimler Ag | Exhaust line pipe of combustion engine for motor vehicle, has receiving sleeve whose wall is made of porous material, such that gas exchange between receiving sleeve and main housing is made possible |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2938179A1 (en) * | 1979-09-21 | 1981-04-09 | Bosch Gmbh Robert | POLAROGRAPHIC SENSOR FOR MEASURING OXYGEN CONCENTRATION IN GASES, ESPECIALLY IN EXHAUST GASES FROM COMBUSTION ENGINES |
| US4908119A (en) * | 1986-09-01 | 1990-03-13 | Nippondenso Co., Ltd. | Apparatus for determining oxygen concentration |
| GB9301104D0 (en) * | 1993-01-21 | 1993-03-10 | Servomex Plc | Sensor for combustible gases |
-
1999
- 1999-07-15 DE DE1999133185 patent/DE19933185A1/en not_active Withdrawn
-
2000
- 2000-06-28 WO PCT/EP2000/005987 patent/WO2001006246A1/en not_active Application Discontinuation
- 2000-06-28 EP EP00945836A patent/EP1112490A1/en not_active Withdrawn
- 2000-06-28 JP JP2001519129A patent/JP2003507726A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001006246A1 (en) | 2001-01-25 |
| DE19933185A1 (en) | 2001-01-18 |
| EP1112490A1 (en) | 2001-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104541139B (en) | For measuring high temperature contact type infrared temperature sensor, hot equipment and gas extraction system | |
| US7810375B2 (en) | Sensor | |
| US20100170483A1 (en) | Film resistor in an exhaust-gas pipe | |
| US20090282909A1 (en) | Film Resistor in Exhaust-gas Pipe | |
| US20100031742A1 (en) | 300°C Flow Sensor | |
| EP0276953A2 (en) | Dewpoint meter | |
| JP2800883B2 (en) | Exhaust sensor | |
| EP2072973B1 (en) | Fluid flow rate measurement apparatus | |
| JP2003507726A (en) | Detector for detecting gas ratio in particle-containing gas stream | |
| US6637254B2 (en) | Sensor element having a protective device | |
| JPH0560529B2 (en) | ||
| Xu et al. | The application of temperature sensor in automobile | |
| JP2000213997A (en) | Thermocouple device | |
| JPS6191532A (en) | Fluid temperature measuring apparatus | |
| EP3051193B1 (en) | System for gas distribution and mass flow measurement | |
| JP3396963B2 (en) | Air intake sensor for internal combustion engines | |
| JPH0640091B2 (en) | Industrial gas concentration measuring device | |
| KR101204820B1 (en) | CIT sensor module | |
| JPH0552143A (en) | Exhaust emission control device | |
| CN208223560U (en) | A kind of cooling component of automobile air flow meter | |
| JP2002013960A (en) | Mass flow measuring method | |
| JPH0613465Y2 (en) | Thermocouple mounting device | |
| RU1771872C (en) | Device for measurement of hot metal surface heat state | |
| JP4262876B2 (en) | Incomplete combustion prevention device | |
| JP3418464B2 (en) | Exhaust obstruction detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20070904 |