JPS6043768B2 - Catalyst for internal combustion engine - Google Patents
Catalyst for internal combustion engineInfo
- Publication number
- JPS6043768B2 JPS6043768B2 JP56149144A JP14914481A JPS6043768B2 JP S6043768 B2 JPS6043768 B2 JP S6043768B2 JP 56149144 A JP56149144 A JP 56149144A JP 14914481 A JP14914481 A JP 14914481A JP S6043768 B2 JPS6043768 B2 JP S6043768B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- internal combustion
- intake
- exhaust
- combustion engine
- 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.)
- Expired
Links
- 239000003054 catalyst Substances 0.000 title claims description 57
- 238000002485 combustion reaction Methods 0.000 title claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 9
- 238000012856 packing Methods 0.000 description 9
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000001294 propane Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【発明の詳細な説明】
本発明は、内燃機関用触媒に係り、特に内燃機関の吸気
を完全燃焼させる為、及び排気を浄化する為に、吸排気
を通過接触させる触媒に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a catalyst for an internal combustion engine, and more particularly to a catalyst that allows intake and exhaust air to pass through and come into contact with each other in order to completely burn the intake air of an internal combustion engine and purify the exhaust gas.
内燃機関の吸気の完全燃焼を促進する為に内燃機関の各
部品について種々研究され、燃料使用効率も遂年向上し
てているが、吸気を通過接触させることにより燃料の効
率を上昇させる触媒については、従来見受けられない。In order to promote complete combustion of intake air in internal combustion engines, various studies have been conducted on various parts of internal combustion engines, and fuel usage efficiency has improved over the years. has not been seen before.
また内燃機関の排気を浄化する触媒については数多くの
触媒が提案され、その一部は実用に供されているが、こ
れらの触媒のほんどは、担体に触媒成分の金属又は金属
酸化物を担持させ成形したもので、これらは排気集合管
に設けられたコンバータに充填使用される。また、白金
系等の高価な金属が多く用いられている。これらの触媒
による排ガス浄化においては、排ガスの温度を高くして
触媒層を通過させる必要があり、排ガスの状態変化によ
り、触媒の焼損、飛散等の虞れがあるとか、圧力損失が
ある等多くの問題があり、これにより排ガス浄化の充分
な効果を発揮することは仲々困難である。In addition, many catalysts have been proposed for purifying the exhaust gas of internal combustion engines, and some of them are in practical use, but most of these catalysts have metals or metal oxides as catalyst components supported on the carrier. These are used to fill the converter installed in the exhaust manifold. Furthermore, expensive metals such as platinum are often used. In exhaust gas purification using these catalysts, it is necessary to raise the temperature of the exhaust gas and pass it through the catalyst layer, and due to changes in the condition of the exhaust gas, there is a risk of catalyst burnout, scattering, etc., and pressure loss, etc. Due to this problem, it is difficult to achieve sufficient exhaust gas purification effects.
本発明の目的は、吸排気を通過接触させることにより、
燃料の使用効率を上昇させ、且つ排ガスを浄化すること
ができる、通気抵抗が少なく、堅牢で、低廉な内燃機関
用触媒を提供するにある。The purpose of the present invention is to bring the intake and exhaust into contact with each other,
To provide a robust and inexpensive catalyst for an internal combustion engine, which has little ventilation resistance, can increase fuel usage efficiency and purify exhaust gas.
本発明による内燃機関用触媒は、ニッケル４０〜８踵量
％、クロム１０〜３腫量％、モリブデン５〜２腫量％、
ニオブ１〜１０重量％、鉄３〜５重量％、アルミニウム
０．０１〜２重量％を含む合金ブロックよりなることを
特徴とする内燃機関用触媒である。本発明の触媒の特徴
は、従来の触媒のように担体上に金属若しくは金属酸化
物を微粒子状に担持せしめて成形したもの、又は金属酸
化物ブロックと異なり、堅牢な特定成分の合金ブロック
であることである。The catalyst for internal combustion engines according to the present invention contains 40-8% nickel, 10-3% chromium, 5-2% molybdenum,
This is a catalyst for an internal combustion engine, characterized in that it is made of an alloy block containing 1 to 10% by weight of niobium, 3 to 5% by weight of iron, and 0.01 to 2% by weight of aluminum. The catalyst of the present invention is characterized by being formed by supporting metal or metal oxide in the form of fine particles on a carrier like conventional catalysts, or by being a robust alloy block of specific components, unlike metal oxide blocks. That's true.
この特定成分とは、ニッケル４０〜８０重量％、クロム
１０〜３ 量％、モリブデン５〜２０重量％、ニオブ１
〜１喧量％、鉄３〜５重量％、アルミニウム０．０１〜
２重量％をいう。また、この触媒合金は、少量又は微量
のチタン、炭素、珪素、マンガン、りん、硫黄、銅を含
み得る。上記の本発明の触媒合金の成分及びその数値限
定範囲は、本発明者等の実験結果より有効であると認め
られた成分及びその含有値より求められたものである。
効果の優れた本発明の触媒の一実施例の成分分析値を以
下に記載する。These specific components include 40-80% by weight of nickel, 10-3% by weight of chromium, 5-20% by weight of molybdenum, and 1% by weight of niobium.
~1 mass%, iron 3-5% by weight, aluminum 0.01~
2% by weight. The catalyst alloy may also contain small or trace amounts of titanium, carbon, silicon, manganese, phosphorus, sulfur, and copper. The above-mentioned components of the catalyst alloy of the present invention and their limited numerical ranges were determined from the components and their content values that were found to be effective based on the experimental results of the present inventors.
The component analysis values of one example of the highly effective catalyst of the present invention are described below.
本発明の触媒は、円柱状をなしているのが好ましく、そ
の使用に際して分岐吸排気管中に１個づつガス流に直角
に配置され、少くとも隣接する吸気管と排気管に配置さ
れる２個ずつが伝熱体で連結されているのが好ましい。The catalyst of the present invention preferably has a cylindrical shape, and when used, one catalyst is disposed perpendicular to the gas flow in each branch intake and exhaust pipe, and at least two catalysts are disposed in adjacent intake and exhaust pipes. Preferably, the two are connected by a heat transfer member.
本発明の触媒の分岐吸排気管内における配置支持方法及
び２個の触媒の連結方法には各種の方法が考えられるが
一実施例の方法を図面に基づいて説明する。第１図に示
すように、内燃機関のシリンダーヘッドと吸排気多岐管
の間に挿入されるパッキンを利用し、又はこの為に特定
のパッキンを作製して、これらのパッキンにより本発明
の触媒を吸排気管に配置する。Various methods can be considered for the method of arranging and supporting the catalyst in the branch intake and exhaust pipes and the method of connecting two catalysts according to the present invention, but the method of the embodiment will be explained based on the drawings. As shown in FIG. 1, the catalyst of the present invention can be carried out using packings inserted between the cylinder head of an internal combustion engine and the intake and exhaust manifolds, or by making special packings for this purpose. Place it in the intake and exhaust pipes.
第１図において、１はパッキン、２は吸排気口、３は締
付ボルト及び位置決めボルトの孔である。触媒体４は吸
排気口２の径より僅かに短い丸棒状をなしている。一実
施例ではパッキン１の吸排気口２の径が３８ｗｎの場合
に、触媒体４の長さを３５Ｔｗｔ１径を７ｍφとしてあ
る。触媒体４は、円柱状をなしているが、吸排気との接
触をよくする為、後述の伝熱線の捲回を堅確とする為及
び触媒の活性表面積を広げる為に、その周面におねじ状
の連続溝を形成しておくことが望ましい。触媒体４には
、一端部より伝熱金属線５を端末を残して巻き込み、巻
き終り端を一定間隔をあけてもう一個の触媒体４に巻き
付け、巻き終り端を一定長さ残して切断する。In FIG. 1, 1 is a packing, 2 is an intake/exhaust port, and 3 is a hole for a tightening bolt and a positioning bolt. The catalyst body 4 has a round rod shape slightly shorter than the diameter of the intake/exhaust port 2. In one embodiment, when the diameter of the intake/exhaust port 2 of the packing 1 is 38wn, the length of the catalyst body 4 is 35Twt1 and the diameter is 7mφ. The catalyst body 4 has a cylindrical shape, but in order to improve contact with intake and exhaust air, to securely wind the heat transfer wires described below, and to increase the active surface area of the catalyst, there are It is desirable to form a continuous groove in the form of a male thread. A heat transfer metal wire 5 is wound around the catalyst body 4 from one end, leaving the end, and the end of the winding is wound around another catalyst body 4 at a certain interval, and the end of the winding is cut, leaving a certain length. .
伝熱線５で捲回された２個の触媒体４の間隔は、触媒体
４を隣接する２個の吸排気口２のそれぞれの中央に配置
できる間隔とされる。伝熱線５には耐熱耐食性の材料が
選ばれる。クロム鋼、モリブデン、タングステン・モリ
ブデン合金などは好ましい材料である。また伝熱線５は
所要太さの単線でも撚線でもよい。上で例示された伝熱
線は触媒副材としての機能をも有する。２個の触媒体４
は上述のように伝熱線５によに連結されて、第１図に示
すように、各吸排気口２に一個づつガス流に直角に配置
される。The interval between the two catalyst bodies 4 wound around the heat transfer wire 5 is such that the catalyst bodies 4 can be placed in the center of each of the two adjacent intake/exhaust ports 2. A heat-resistant and corrosion-resistant material is selected for the heat transfer wire 5. Preferred materials include chromium steel, molybdenum, and tungsten-molybdenum alloys. Further, the heat transfer wire 5 may be a single wire or a twisted wire of a required thickness. The heat transfer wire exemplified above also has a function as a catalytic auxiliary material. 2 catalyst bodies 4
are connected to the heat transfer wires 5 as described above, and are arranged at right angles to the gas flow, one at each intake/exhaust port 2, as shown in FIG.
触媒体４の伝熱線５による連結は、必ずしも２個に限定
されることなく、隣接する吸気管と排気管に配置される
２個ずつの組が形成されるならば、４個、６個、・・・
等であつてもよい。伝熱線５により連結された触媒体４
をパッキン１の吸排気口２に配置するに際しては、該パ
ッキン１の完成前に、パッキン１の中層のアスベスト層
中に、伝熱線５の端末及び連結部を埋め込み、その後表
層の金属板を合わせてブレス加工し、パッキン１の完成
と同時に触媒体の配置を完了する。The connection of the catalyst bodies 4 by the heat transfer wires 5 is not necessarily limited to two, but if a set of two catalyst bodies arranged in adjacent intake pipes and exhaust pipes is formed, four, six, etc. ...
etc. may be used. Catalyst bodies 4 connected by heat transfer wires 5
When placing the heat transfer wire 5 at the intake/exhaust port 2 of the packing 1, before the packing 1 is completed, the ends and connecting portions of the heat transfer wires 5 are embedded in the middle asbestos layer of the packing 1, and then the metal plates on the surface layer are aligned. Pressing is performed, and the placement of the catalyst body is completed at the same time as the packing 1 is completed.
第３図は他の実施例を示すもので、触媒４の両端部に孔
６が穿設され、１本の伝熱線５を２個の触媒４のそれぞ
れの一方の孔６に挿通して、２個の触媒４を連結してい
る。FIG. 3 shows another embodiment, in which holes 6 are bored at both ends of the catalyst 4, and one heat transfer wire 5 is inserted through one hole 6 of each of the two catalysts 4. Two catalysts 4 are connected.
また他方の孔６にはそれぞれ別の伝熱体が挿通されてい
る。以上の如くして、本発明の触媒を内燃機関の各分岐
吸気管及び分岐排気管中に配置することにより燃料消費
量が著しく軽減されることは驚くべきことである。Further, different heat transfer bodies are inserted into the other holes 6, respectively. As described above, it is surprising that fuel consumption can be significantly reduced by disposing the catalyst of the present invention in each branch intake pipe and branch exhaust pipe of an internal combustion engine.
燃料消費量の減少理由は詳らかでな″いが、次の如く推
定される。即ち、吸気が本発明の触媒に衝突して燃料が
微粒子化、分子化され、触媒は排気口側より伝熱線によ
り高温化されるので、この熱により燃料の気化が促進さ
れ、更に吸気が触媒表面に接触することにより活性が与
えられ、完全燃焼を行い得るようになると推定される。
また、排気の浄化については定性的な測定値しか得られ
てないが、本発明の触媒に排気を通過接触させることに
より窒素酸化物などの有害ガスが減少する。The reason for the decrease in fuel consumption is not clear, but it is presumed as follows.In other words, the intake air collides with the catalyst of the present invention, and the fuel becomes fine particles and molecules, and the catalyst passes through the heat transfer line from the exhaust port side. It is presumed that this heat promotes the vaporization of the fuel, and that the contact of intake air with the surface of the catalyst gives it activity and enables complete combustion.
Further, although only qualitative measurements have been obtained regarding the purification of exhaust gas, by bringing the exhaust gas into contact with the catalyst of the present invention, harmful gases such as nitrogen oxides are reduced.
この現象は他の従来の有効な触媒の場合と類似なものと
推定される。本発明の触媒の使用による吸排気の通気抵
抗は少なく、本発明の触媒は、機械的強度が大で、耐熱
性、耐食性に優れ、製造価格も比較的低廉である。This phenomenon is presumed to be similar to that of other conventional effective catalysts. The use of the catalyst of the present invention results in less ventilation resistance for intake and exhaust, and the catalyst of the present invention has high mechanical strength, excellent heat resistance and corrosion resistance, and is relatively inexpensive to manufacture.
更に本発明の触媒装置の取付は簡単で、地積をとらず、
内燃機関本来の機能に何等影響を及ぼすことはない。第
１図及び第２図に示した本発明の触媒を使用して、特定
のガソリン車Ａ及びＢについて燃料消費量を調べた。Furthermore, the catalyst device of the present invention is easy to install and does not take up much land area.
There is no effect on the original function of the internal combustion engine. The fuel consumption of specific gasoline vehicles A and B was investigated using the catalyst of the present invention shown in FIGS. 1 and 2.
用いられた触媒４は、上で成分分析値を記載した合金か
らなり、その周面に連続溝を有するものである。また伝
熱線５はクロム鋼線とモリブデン線の撚線である。試験
の結果、ガソリン車Ａでは使用前の走行キロが１０−／
ｅであつたものが、使用後は１３．６〜１４．０馳／′
となり３６〜４０％の燃料が節減された。第３図の態様
では使用後の走行距離は１２紬／ｅであつた。ガソリン
車Ｂでは使用前の走行キロが６．６ｋＴｎ／ｌ？（クー
ラ使用せず）であつたものが、使用後９．２ｋｍ／′（
ク−ラー使用せず）、８．７−／ｅ（ク−ラー使用）と
なり、４０％及び３３％の燃料節減となつた。また、特
定のプロパン車（タクシー）Ｃで同様に試験したところ
、走行キロが５．８−／′（クーラなし）であつたもの
が、この触媒を使用することにより６．６ｈ／ｅ（クー
ラなし）及び６．３−／ｅ（クーラ使用）となつた。も
う一台のプロパン車Ｄでは、６．０紬／ｅ（クーラなし
）であつたものが、６．７−／ｅ（クーラなし）及び６
．２−／ｅ（クーラ使用）となつた。同時に２０％の馬
力アップが見られた。ガソリン車、プロパン車（タクシ
ー）とも四季を通じての試験の結果、トラブルは１件も
発生せず、各車装着して現在走行中である。本発明の触
媒は以上の如く優れた効果をあげることができるので、
実用価値が極めて大である。The catalyst 4 used was made of the alloy whose component analysis values were described above, and had continuous grooves on its circumferential surface. Further, the heat transfer wire 5 is a twisted wire of a chromium steel wire and a molybdenum wire. As a result of the test, the mileage of gasoline car A before use was 10-/
The temperature was 13.6~14.0/' after use.
This resulted in fuel savings of 36-40%. In the embodiment shown in FIG. 3, the mileage after use was 12/e. Is the mileage of gasoline car B 6.6kTn/l before use? (without using cooler), after use 9.2 km/' (
(without cooler) and 8.7-/e (with cooler), resulting in fuel savings of 40% and 33%. In addition, when a specific propane car (taxi) C was tested in the same manner, the mileage was 5.8-/' (without cooler), but by using this catalyst, the mileage was 6.6 h/e (with cooler). (without) and 6.3-/e (with cooler). The other propane vehicle D, which was 6.0 Tsumugi/e (without cooler), changed to 6.7-/e (without cooler) and 6.
．． 2-/e (cooler used). At the same time, a 20% increase in horsepower was seen. As a result of testing throughout the four seasons for both gasoline and propane vehicles (taxi), no troubles have occurred, and each vehicle is currently running with the system equipped. Since the catalyst of the present invention can achieve excellent effects as described above,
It has extremely great practical value.
図面は本発明の触媒の実施態様を示すもので、第１図は
内燃機関のシリンダヘッドと吸排気多岐管の間に本発明
の触媒を取付けた状態を示す斜視図、第２図は第１図の
部分拡大図、第３図は本発明の触媒の他の実施態様を示
す部分拡大図である。
１・・・パッキン、２・・・吸排気口、３・・・ボルト
孔、４・・・触媒、５・・・伝熱線、６・・・穴。The drawings show embodiments of the catalyst of the present invention, and FIG. 1 is a perspective view showing the catalyst of the present invention installed between the cylinder head and the intake/exhaust manifold of an internal combustion engine, and FIG. FIG. 3 is a partially enlarged view showing another embodiment of the catalyst of the present invention. 1... Packing, 2... Intake/exhaust port, 3... Bolt hole, 4... Catalyst, 5... Heat transfer wire, 6... Hole.
Claims (1)
％、モリブデン５〜２０重量％、ニオブ１〜１０重量％
、鉄３〜５重量％、アルミニウム０．０１〜２重量％を
含む合金ブロックよりなることを特徴とする内燃機関用
触媒。1 Nickel 40-80% by weight, chromium 10-30% by weight, molybdenum 5-20% by weight, niobium 1-10% by weight
A catalyst for an internal combustion engine, comprising an alloy block containing 3 to 5% by weight of iron and 0.01 to 2% by weight of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56149144A JPS6043768B2 (en) | 1981-09-21 | 1981-09-21 | Catalyst for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56149144A JPS6043768B2 (en) | 1981-09-21 | 1981-09-21 | Catalyst for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5851941A JPS5851941A (en) | 1983-03-26 |
| JPS6043768B2 true JPS6043768B2 (en) | 1985-09-30 |
Family
ID=15468722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56149144A Expired JPS6043768B2 (en) | 1981-09-21 | 1981-09-21 | Catalyst for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043768B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI89463C (en) * | 1991-01-03 | 1993-10-11 | Kemira Oy | ANVAENDNING AV EN NICKELBASERAD, ALUMINIUM INNEHAOLLANDE METALLEGERING SOM SUBSTRATMATERIAL FOER EN AVGASER RENANDE KATALYSATOR |
| DE19630250C1 (en) * | 1996-07-26 | 1997-08-28 | Krupp Vdm Gmbh | Metal alloy catalyst for the total oxidation carbon mon:oxide, soot and/or hydrocarbon |
-
1981
- 1981-09-21 JP JP56149144A patent/JPS6043768B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5851941A (en) | 1983-03-26 |
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