JP2003126658A - Catalyst evaluating and testing apparatus - Google Patents
Catalyst evaluating and testing apparatusInfo
- Publication number
- JP2003126658A JP2003126658A JP2001329655A JP2001329655A JP2003126658A JP 2003126658 A JP2003126658 A JP 2003126658A JP 2001329655 A JP2001329655 A JP 2001329655A JP 2001329655 A JP2001329655 A JP 2001329655A JP 2003126658 A JP2003126658 A JP 2003126658A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalyst
- temperature
- heating
- heating part
- 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.)
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Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車のエンジ
ンに連なる排気管などに設けられる触媒を評価するため
の触媒評価試験装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalyst evaluation test device for evaluating a catalyst provided in an exhaust pipe connected to an automobile engine.
【０００２】[0002]
【従来の技術】自動車のエンジンに連なる排気管などに
設けられる触媒を評価する場合、エンジンからの排ガス
と同様の成分を含む模擬排ガスが用いられる。ここで、
模擬排ガスとは、例えば、ＮＯX 、ＣＯ2 、ＨＣ、Ｈ2
Ｏなどエンジン排ガスに含まれる各種の成分を前記排ガ
スにおける濃度と同様濃度となるように窒素ガスと混合
したものである。この場合、模擬排ガスを実際の排ガス
温度と同様の温度状態にするとともに、評価対象の触媒
を加熱して所定の温度になるようにして、模擬排ガスと
触媒とにおいて所定の吸着反応が十分に行われるように
する必要がある。2. Description of the Related Art When a catalyst provided in an exhaust pipe connected to an automobile engine is evaluated, a simulated exhaust gas containing the same components as the exhaust gas from the engine is used. here,
And the simulated exhaust gas, for example, NO X, CO 2, HC , H 2
Various components contained in the engine exhaust gas such as O are mixed with nitrogen gas so as to have the same concentration as that of the exhaust gas. In this case, the simulated exhaust gas is brought to a temperature state similar to the actual exhaust gas temperature, and the catalyst to be evaluated is heated to a predetermined temperature so that the simulated exhaust gas and the catalyst can sufficiently perform the predetermined adsorption reaction. You need to be taught.
【０００３】そこで、従来においては、図３に示すよう
な触媒評価試験装置を用いていた。この図において、１
は模擬排ガスＧが流れる例えば細長い流通型のガスセル
で、このガスセル１の上流端１ａには、模擬排ガスＧを
供給する模擬排ガス供給路２が接続されており、下流端
１ｂは、ガス分析装置（図示していない）への流路３に
接続されている。模擬排ガス供給路２には流量測定機能
と流量制御機能を兼ね備えたマスフローコントローラよ
りなる流量制御弁４が設けられ、その上流側は模擬排ガ
ス源（図示していない）に接続されている。Therefore, conventionally, a catalyst evaluation test device as shown in FIG. 3 has been used. In this figure, 1
Is a slender flow type gas cell through which the simulated exhaust gas G flows, the simulated exhaust gas supply path 2 for supplying the simulated exhaust gas G is connected to the upstream end 1a of the gas cell 1, and the downstream end 1b is connected to the gas analyzer ( (Not shown) to the flow path 3. The simulated exhaust gas supply path 2 is provided with a flow rate control valve 4 composed of a mass flow controller having both a flow rate measurement function and a flow rate control function, and its upstream side is connected to a simulated exhaust gas source (not shown).
【０００４】前記ガスセル１には、その上流側からこれ
に沿うようにして第１加熱部５および第２加熱部６がこ
の順で設けられている。これらの加熱部５，６はいずれ
も、赤外線加熱炉よりなり、第１加熱部５はガスセル１
内に導入される模擬排ガスＧを加熱し、第２加熱部６は
ガスセル１内の下流側に設けられる触媒７を加熱するよ
うに構成されている。８は触媒７の入口近傍の温度を検
出する温度センサで、その出力はコントローラ９に入力
されるようにしてある。The gas cell 1 is provided with a first heating part 5 and a second heating part 6 in this order from the upstream side along the same. Each of these heating parts 5 and 6 is composed of an infrared heating furnace, and the first heating part 5 is a gas cell 1
The simulated exhaust gas G introduced into the gas cell 1 is heated, and the second heating unit 6 is configured to heat the catalyst 7 provided on the downstream side in the gas cell 1. Reference numeral 8 is a temperature sensor for detecting the temperature near the inlet of the catalyst 7, and its output is input to the controller 9.
【０００５】上記構成の触媒評価試験装置においては、
第１加熱部５および第２加熱部６をそれぞれ動作させて
所定の温度になるようにし、その状態で模擬排ガスＧを
ガスセル１の上流側から供給し、触媒７において所定の
吸着反応を行わせている。この場合、触媒７の入口側の
温度を温度センサ８によって検出し、この検出された温
度に基づいてコントローラ９から第１加熱部５に制御信
号が送出され、これによって、第１加熱部５の発熱量を
制御し、模擬排ガスＧの温度を所望の値になるようにし
ていた。In the catalyst evaluation test device having the above structure,
The first heating unit 5 and the second heating unit 6 are respectively operated to reach a predetermined temperature, and in that state, the simulated exhaust gas G is supplied from the upstream side of the gas cell 1 to cause the catalyst 7 to perform a predetermined adsorption reaction. ing. In this case, the temperature on the inlet side of the catalyst 7 is detected by the temperature sensor 8, and a control signal is sent from the controller 9 to the first heating unit 5 based on the detected temperature. The calorific value is controlled so that the temperature of the simulated exhaust gas G becomes a desired value.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の触媒評価試験装置においては、温度域によっては第
１加熱部５における熱量がゼロになり、触媒７の入口側
における温度を変更するような場合、昇温温度が最大５
０℃／ｍｉｎ程度しかなく、また、また、冷却機能を備
えてないため、降温速度の制御はほとんど不可能であっ
た。このため、従来の昇温速度や降温速度では、実際の
エンジン排ガスの温度状態を再現することが困難であ
り、特に、エンジンの起動時や高負荷時における排ガス
と同様の模擬排ガスを実現することが困難であった。However, in the above-mentioned conventional catalyst evaluation test apparatus, the amount of heat in the first heating section 5 becomes zero depending on the temperature range, and the temperature at the inlet side of the catalyst 7 is changed. , The maximum temperature rise is 5
Since it is only about 0 ° C./min and has no cooling function, it is almost impossible to control the temperature decrease rate. For this reason, it is difficult to reproduce the actual temperature condition of the engine exhaust gas with the conventional rate of temperature increase or temperature decrease, and in particular, it is necessary to realize a simulated exhaust gas similar to the exhaust gas when the engine is started or under high load. Was difficult.
【０００７】この発明は、上述の事柄に留意してなされ
たもので、その目的は、エンジン排ガスの高速昇温およ
び高速降温を実現することができ、エンジン排ガスと同
等の模擬排ガスを得ることのできる触媒評価試験装置を
提供することである。The present invention has been made in view of the above matters, and an object thereof is to realize high-speed temperature rising and temperature-lowering of engine exhaust gas and to obtain simulated exhaust gas equivalent to engine exhaust gas. It is to provide a catalyst evaluation test device that can be used.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、この発明では、模擬排ガス供給路から供給される模
擬排ガスが流れるガスセルに沿って第１加熱部および第
２加熱部をこの順に設け、第１加熱部によって前記模擬
排ガスを加熱し、第２加熱部によって前記ガスセル内に
設けられた触媒を加熱するようにした触媒評価試験装置
において、前記模擬排ガス供給路に分岐流路を接続し、
この分岐流路の下流端を前記第１加熱部と第２加熱部と
の間において前記ガスセルに接続するとともに、前記模
擬排ガス供給路および分岐流路のそれぞれに模擬排ガス
の流量を調整する流量調整弁を設け、前記触媒入口近傍
の温度を検出し、この検出された温度に基づいて前記流
量調整弁の開度を調整して、触媒入口近傍の温度が所定
の温度になるように制御することを特徴としている（請
求項１）。In order to achieve the above object, according to the present invention, a first heating section and a second heating section are provided in this order along a gas cell in which a simulated exhaust gas supplied from a simulated exhaust gas supply passage flows. In the catalyst evaluation test device configured to heat the simulated exhaust gas by the first heating unit and heat the catalyst provided in the gas cell by the second heating unit, connect a branch flow path to the simulated exhaust gas supply path,
A flow rate adjustment for connecting the downstream end of the branch flow path to the gas cell between the first heating section and the second heating section and adjusting the flow rate of the simulated exhaust gas in each of the simulated exhaust gas supply path and the branched flow path. A valve is provided, the temperature near the catalyst inlet is detected, and the opening of the flow rate adjusting valve is adjusted based on the detected temperature to control the temperature near the catalyst inlet to a predetermined temperature. (Claim 1).
【０００９】そして、上記触媒評価試験装置において、
触媒入口近傍の温度を上昇させる場合には、第１加熱部
と第２加熱部をともにオンさせ、前記温度を下降させる
場合には、第１加熱部のみをオンさせるようにしてもよ
い（請求項２）。Then, in the above catalyst evaluation test apparatus,
When increasing the temperature near the catalyst inlet, both the first heating part and the second heating part may be turned on, and when decreasing the temperature, only the first heating part may be turned on (claim) Item 2).
【００１０】[0010]
【発明の実施の形態】以下、この発明の詳細を、図を参
照しながら説明する。図１は、この発明の触媒評価試験
装置の構成の一例を示すものである。なお、この図にお
いて、図３における符号と同一のものは同一部材を示し
ている。前記図１において、１０は模擬排ガス供給路２
から分岐した流路で、この分岐流路１０は、その上流側
が流量調整弁４の下流側の点１１に分岐接続され、その
下流側はガスセル１の第１加熱部５と第２加熱部６との
間の点１２に合流接続されている。なお、以下におい
て、分岐点１１以降の模擬排ガス供給路２Ａをホットラ
イン、分岐流路１０をクールラインという。DETAILED DESCRIPTION OF THE INVENTION The details of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the configuration of the catalyst evaluation test apparatus of the present invention. In this figure, the same parts as those in FIG. 3 represent the same members. In FIG. 1, 10 is a simulated exhaust gas supply path 2
The branch flow path 10 is branched from the upstream side of the flow control valve 4 to the downstream side point 11 and the downstream side of the branch flow path 10 is connected to the first heating section 5 and the second heating section 6 of the gas cell 1. Is joined to a point 12 between and. In the following, the simulated exhaust gas supply passage 2A after the branch point 11 is referred to as a hot line, and the branch passage 10 is referred to as a cool line.
【００１１】１３，１４は前記ホットライン２Ａおよび
クールライン１０にそれぞれ設けられる流量調整弁で、
ホットライン２Ａ側の流量調整弁１３は、例えばニード
ルバルブよりなり、前記分岐点１１とガスセル１の上流
端１ａとの間に介装され、コントローラ９からの指令に
よって開度が調整される。また、クールライン１０側の
流量調整弁１４は、例えばマスフローコントローラより
なり、前記分岐点１１と接続点１２との間に介装され、
コントローラ９からの信号に基づいて演算を行う演算回
路１５およびこの演算回路１５の指令によって制御信号
を出力するコントローラ１６からの指令によって開度が
調整される。Reference numerals 13 and 14 are flow rate adjusting valves provided in the hot line 2A and the cool line 10, respectively.
The flow rate adjusting valve 13 on the hot line 2A side is, for example, a needle valve, is interposed between the branch point 11 and the upstream end 1a of the gas cell 1, and the opening degree is adjusted by a command from the controller 9. The flow rate adjusting valve 14 on the cool line 10 side is, for example, a mass flow controller and is interposed between the branch point 11 and the connection point 12,
The opening degree is adjusted by an instruction from an arithmetic circuit 15 that performs an arithmetic operation based on a signal from the controller 9 and an instruction from the controller 16 that outputs a control signal according to the instruction of the arithmetic circuit 15.
【００１２】上記構成の触媒評価試験装置においては、
第１加熱部５および第２加熱部６は、それぞれ常時オン
動作して、所定の熱量を発するように制御される。ま
た、模擬排ガス供給路２の上流側から供給される模擬排
ガスＧは、例えば室温程度であり、この模擬排ガスＧは
マスフローコントローラ４によって流量調整され、模擬
排ガス供給路２を流れ、分岐点１１においてホットライ
ン２Ａとクールライン１０とに分流される。そして、ホ
ットライン２Ａを流れる模擬排ガスＧは、バルブ１３を
経てガスセル１の上流端１ａからガスセル１内に供給さ
れて所定の熱量を発している第１加熱部５を通過するの
で、適宜の高温に加熱され、触媒７の直前においてはか
なり高温状態になっている。一方、クールライン１０を
流れる模擬排ガスＧは、マスフローコントローラ１４を
経てガスセル１の第２加熱部６の上流側から供給され、
前記ホットライン２Ａを流れる模擬排ガスＧとは異な
り、第１加熱部５で加熱されることがないので、室温程
度であるので、触媒７の直前においては室温程度の温度
状態である。In the catalyst evaluation test device having the above structure,
The first heating unit 5 and the second heating unit 6 are controlled so that they are always turned on and generate a predetermined amount of heat. Further, the simulated exhaust gas G supplied from the upstream side of the simulated exhaust gas supply passage 2 has, for example, about room temperature, and the flow rate of the simulated exhaust gas G is adjusted by the mass flow controller 4 to flow through the simulated exhaust gas supply passage 2 at the branch point 11. It is divided into a hot line 2A and a cool line 10. Then, the simulated exhaust gas G flowing through the hot line 2A passes through the valve 13 and is supplied from the upstream end 1a of the gas cell 1 into the gas cell 1 and passes through the first heating section 5 which emits a predetermined amount of heat, so that the temperature is appropriately high. The catalyst 7 is heated to a high temperature immediately before the catalyst 7. On the other hand, the simulated exhaust gas G flowing through the cool line 10 is supplied from the upstream side of the second heating unit 6 of the gas cell 1 via the mass flow controller 14.
Unlike the simulated exhaust gas G flowing through the hot line 2A, since it is not heated by the first heating unit 5, the temperature is about room temperature, so that the temperature is about room temperature immediately before the catalyst 7.
【００１３】したがって、流量調整弁４を通過する模擬
排ガスＧの流量Ｑが一定である場合、ホットライン２Ａ
を流れる模擬排ガスＧの流量Ｑ1 とし、クールライン１
０を流れる模擬排ガスＧの流量Ｑ2 とするとき、Ｑ＝Ｑ
1 ＋Ｑ2 であるので、触媒７における温度をより高温に
する（昇温制御）場合には、流量比Ｑ1 ／Ｑ2 を大きく
し、触媒７における温度をより低温にする（高温制御）
場合には、流量比Ｑ1／Ｑ2 を小さくなるようにするの
である。Therefore, when the flow rate Q of the simulated exhaust gas G passing through the flow rate adjusting valve 4 is constant, the hot line 2A
Flow rate Q 1 of the simulated exhaust gas G flowing through the cool line 1
When the flow rate Q 2 of the simulated exhaust gas G flowing through 0 is Q = Q
Since it is 1 + Q 2 , when the temperature in the catalyst 7 is made higher (temperature increase control), the flow rate ratio Q 1 / Q 2 is increased and the temperature in the catalyst 7 is made lower (high temperature control).
In this case, the flow rate ratio Q 1 / Q 2 is made small.
【００１４】そして、特に、降温制御を行う場合、前記
Ｑ1 ／Ｑ2 を小さくだけでなく、第２加熱部６をオフと
すれば、触媒７を通過する模擬排ガスＧの温度をより速
やかに降下させることができる。In particular, when the temperature control is performed, the temperature of the simulated exhaust gas G passing through the catalyst 7 can be increased more quickly not only by reducing Q 1 / Q 2 but also by turning off the second heating section 6. Can be lowered.
【００１５】図２は、この発明の効果を説明するための
図で、この図において、実線Ａはこの発明の触媒評価試
験装置における触媒７の直前における温度の昇降状態を
示し、仮想線Ｂは従来の（図３に示す）触媒評価試験装
置における触媒７の直前における温度の昇降状態を示し
ている。この図から、この発明の触媒評価試験装置によ
れば、触媒７を通過させる模擬排ガスＧの温度をきわめ
て速やかに上昇させたり、降下させることができること
が分かる。FIG. 2 is a diagram for explaining the effect of the present invention. In this figure, the solid line A shows the temperature rising / falling state immediately before the catalyst 7 in the catalyst evaluation test apparatus of the present invention, and the phantom line B shows. 4 shows a temperature rise / decrease state immediately before the catalyst 7 in the conventional catalyst evaluation test apparatus (shown in FIG. 3). From this figure, it is understood that the temperature of the simulated exhaust gas G passing through the catalyst 7 can be raised or lowered extremely quickly according to the catalyst evaluation test apparatus of the present invention.
【００１６】したがって、この発明によれば、実際のエ
ンジンから排出される排ガスにおけると同様の模擬排ガ
スの温度状態を実現することができ、特に従来の触媒評
価試験装置においては困難であったエンジンの起動時や
高負荷時における排ガスと同様の模擬排ガスを実現する
ことができ、触媒７の評価試験を実車にきわめて近い状
態で行うことができる。Therefore, according to the present invention, it is possible to realize the same temperature condition of the simulated exhaust gas as that of the exhaust gas discharged from the actual engine, and it is particularly difficult for the conventional catalyst evaluation test device to use the engine. Simulated exhaust gas similar to exhaust gas at the time of startup or high load can be realized, and the evaluation test of the catalyst 7 can be performed in a state very close to an actual vehicle.
【００１７】上述の実施の形態においては、加熱部５，
６が赤外線加熱炉で構成されているが、これに代えて、
ニクロム線などよりなるヒータで構成してもよい。ま
た、ホットライン２Ａ側の流量調整弁１３としてバルブ
を用い、クールライン１０側の流量調整弁１４としてマ
スフローコントローラを用いていたが、これに代えて、
流量調整弁１３をマスフローコントローラとし、流量調
整弁１４をニードルバルブとしてもよい。また、両流量
調整弁１３，１４をニードルバルブとしたり、マスフロ
ーコントローラとしてもよい。In the above embodiment, the heating section 5,
6 is composed of an infrared heating furnace, but instead of this,
The heater may be made of nichrome wire or the like. Further, a valve is used as the flow rate adjusting valve 13 on the hot line 2A side and a mass flow controller is used as the flow rate adjusting valve 14 on the cool line 10 side, but instead of this,
The flow rate adjusting valve 13 may be a mass flow controller and the flow rate adjusting valve 14 may be a needle valve. Further, both flow rate adjusting valves 13 and 14 may be needle valves or may be mass flow controllers.
【００１８】[0018]
【発明の効果】以上説明したように、この発明の触媒評
価試験装置によれば、エンジン排ガスの高速昇温および
高速降温を実現することができ、エンジン排ガスと同等
の模擬排ガスを得ることができる。したがって、触媒の
評価試験をより精度よく行わせることができる。As described above, according to the catalyst evaluation test apparatus of the present invention, it is possible to realize high-speed temperature increase and high-speed temperature decrease of engine exhaust gas, and obtain simulated exhaust gas equivalent to engine exhaust gas. . Therefore, the catalyst evaluation test can be performed more accurately.
【図１】この発明の触媒評価試験装置の構成の一例を概
略的に示す図である。FIG. 1 is a diagram schematically showing an example of the configuration of a catalyst evaluation test device of the present invention.
【図２】この発明の作用効果を説明するための図であ
る。FIG. 2 is a diagram for explaining the function and effect of the present invention.
【図３】従来の触媒評価試験装置を概略的に示す図であ
る。FIG. 3 is a diagram schematically showing a conventional catalyst evaluation test device.
１…ガスセル、２…模擬排ガス供給路、５…第１加熱
部、６…第２加熱部、７…触媒、１０…分岐流路、１
３，１４…流量調整弁、Ｇ…模擬排ガス。DESCRIPTION OF SYMBOLS 1 ... Gas cell, 2 ... Simulated exhaust gas supply path, 5 ... 1st heating part, 6 ... 2nd heating part, 7 ... Catalyst, 10 ... Branch flow path, 1
3, 14 ... Flow control valve, G ... Simulated exhaust gas.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 家城 孝之 京都府京都市南区上鳥羽鉾立町11番５ 株 式会社エステック内 Ｆターム(参考） 3G091 AB01 BA31 CA01 CA03 CA05 CA07 4D048 CC51 CD06 DA01 DA02 DA05 DA06 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takayuki Ieshiro 11-5 Kamitoba Hokodatemachi, Minami-ku, Kyoto-shi, Kyoto Prefecture In ceremony company STEC F-term (reference) 3G091 AB01 BA31 CA01 CA03 CA05 CA07 4D048 CC51 CD06 DA01 DA02 DA05 DA06
Claims (2)
ガスが流れるガスセルに沿って第１加熱部および第２加
熱部をこの順に設け、第１加熱部によって前記模擬排ガ
スを加熱し、第２加熱部によって前記ガスセル内に設け
られた触媒を加熱するようにした触媒評価試験装置にお
いて、前記模擬排ガス供給路に分岐流路を接続し、この
分岐流路の下流端を前記第１加熱部と第２加熱部との間
において前記ガスセルに接続するとともに、前記模擬排
ガス供給路および分岐流路のそれぞれに模擬排ガスの流
量を調整する流量調整弁を設け、前記触媒入口近傍の温
度を検出し、この検出された温度に基づいて前記流量調
整弁の開度を調整して、触媒入口近傍の温度が所定の温
度になるように制御することを特徴とする触媒評価試験
装置。1. A first heating part and a second heating part are provided in this order along a gas cell in which the simulated exhaust gas supplied from the simulated exhaust gas supply passage flows, and the simulated heating exhaust gas is heated by the first heating part to perform the second heating. In a catalyst evaluation test device configured to heat a catalyst provided in the gas cell by a section, a branch flow path is connected to the simulated exhaust gas supply path, and a downstream end of the branch flow path is connected to the first heating section and the first heating section. A flow rate adjusting valve for adjusting the flow rate of the simulated exhaust gas is provided in each of the simulated exhaust gas supply path and the branch flow path while being connected to the gas cell between the two heating parts, and the temperature near the catalyst inlet is detected. A catalyst evaluation test device, characterized in that the opening of the flow rate adjusting valve is adjusted based on the detected temperature so that the temperature near the catalyst inlet is controlled to a predetermined temperature.
は、第１加熱部と第２加熱部をともにオンさせ、前記温
度を下降させる場合には、第１加熱部のみをオンさせる
ようにしてなる請求項１に記載の触媒評価試験装置。2. When increasing the temperature near the catalyst inlet, both the first heating section and the second heating section are turned on, and when lowering the temperature, only the first heating section is turned on. The catalyst evaluation test device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001329655A JP3927399B2 (en) | 2001-10-26 | 2001-10-26 | Catalyst evaluation test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001329655A JP3927399B2 (en) | 2001-10-26 | 2001-10-26 | Catalyst evaluation test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003126658A true JP2003126658A (en) | 2003-05-07 |
| JP3927399B2 JP3927399B2 (en) | 2007-06-06 |
Family
ID=19145520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001329655A Expired - Lifetime JP3927399B2 (en) | 2001-10-26 | 2001-10-26 | Catalyst evaluation test equipment |
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| Country | Link |
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| JP (1) | JP3927399B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013001663A1 (en) * | 2011-06-30 | 2013-01-03 | 株式会社ベスト測器 | Device for evaluating catalytic performance in purifying exhaust gas |
| JP5138830B1 (en) * | 2012-09-27 | 2013-02-06 | 株式会社ベスト測器 | Performance evaluation device for exhaust gas purification catalyst or exhaust gas sensor |
| JP2013104694A (en) * | 2011-11-10 | 2013-05-30 | Horiba Ltd | Simulated gas supply device |
| JP2013134166A (en) * | 2011-12-27 | 2013-07-08 | Horiba Ltd | Simulation gas supply apparatus |
| JP2014092075A (en) * | 2012-11-02 | 2014-05-19 | Horiba Ltd | Fluid heating device and catalyst evaluation and testing device |
| JP2014235110A (en) * | 2013-06-04 | 2014-12-15 | 株式会社堀場製作所 | Simulation gas supply device |
| JP2017083193A (en) * | 2015-10-23 | 2017-05-18 | 株式会社ベスト測器 | Performance evaluation device of exhaust gas purification catalyst and exhaust gas sensor |
| JP7090822B1 (en) | 2022-01-21 | 2022-06-24 | 株式会社ベスト測器 | High temperature gas introduction device |
-
2001
- 2001-10-26 JP JP2001329655A patent/JP3927399B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013001663A1 (en) * | 2011-06-30 | 2013-01-03 | 株式会社ベスト測器 | Device for evaluating catalytic performance in purifying exhaust gas |
| JP2013104694A (en) * | 2011-11-10 | 2013-05-30 | Horiba Ltd | Simulated gas supply device |
| JP2013134166A (en) * | 2011-12-27 | 2013-07-08 | Horiba Ltd | Simulation gas supply apparatus |
| JP5138830B1 (en) * | 2012-09-27 | 2013-02-06 | 株式会社ベスト測器 | Performance evaluation device for exhaust gas purification catalyst or exhaust gas sensor |
| JP2014092075A (en) * | 2012-11-02 | 2014-05-19 | Horiba Ltd | Fluid heating device and catalyst evaluation and testing device |
| JP2014235110A (en) * | 2013-06-04 | 2014-12-15 | 株式会社堀場製作所 | Simulation gas supply device |
| JP2017083193A (en) * | 2015-10-23 | 2017-05-18 | 株式会社ベスト測器 | Performance evaluation device of exhaust gas purification catalyst and exhaust gas sensor |
| JP7090822B1 (en) | 2022-01-21 | 2022-06-24 | 株式会社ベスト測器 | High temperature gas introduction device |
| JP2023106873A (en) * | 2022-01-21 | 2023-08-02 | 株式会社ベスト測器 | High-temperature gas introduction device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3927399B2 (en) | 2007-06-06 |
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