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1. 发明专利

JPH01281144A CATALYST FOR PURIFYING EXHAUST GAS 失效
公开(公告)号：JPH01281144A
公开(公告)日：1989-11-13
申请号：JP10883488
申请日：1988-04-30
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： OZAWA MASAKUNI , KIMURA MAREO , ISOTANI AKIO , MATSUMOTO SHINICHI , MIYOSHI NAOTO
IPC分类号： B01D53/94 , B01J23/10 , B01J23/56 , B01J23/63 , B01J23/83 , B01J32/00 , B01J37/02 , B32B18/00
摘要： PURPOSE:To obtain an exhaust gas purifying catalyst excellent in its purifying rate by providing a catalyst carrier layer with the oxides of cerium, zirconium and rare earth metals coexisting as a composite oxide or solid solution. CONSTITUTION:A catalyst carrier layer contains cerium oxide such as cerium nitrate, zirconium oxide such as oxyzirconium nitrate and rare earth metal oxide such as yttrium nitrate and ytterbium nitrate. It is subjected to heat treatment with these substances coexisting, making at least a portion thereof present as a composite oxide or solid solution. The catalyst so formed is excellent in oxygen storage function even after heating at a high temperature, leading to excellence in the purifying rate of exhaust gas.

2. 发明专利

JPH02265649A CATALYST AND METHOD FOR PURIFYING EXHAUST GAS 失效
公开(公告)号：JPH02265649A
公开(公告)日：1990-10-30
申请号：JP25817389
申请日：1989-10-03
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： INUI SATOYUKI , MURAKI HIDEAKI , KONDO SHIRO , ISOTANI AKIO , MATSUMOTO SHINICHI
IPC分类号： B01D53/94 , B01J23/78 , B01J29/035 , B01J29/04 , B01J29/072 , B01D53/36
摘要： PURPOSE:To obtain a catalyst excellent in the purification performance of nitrogen oxide and in the durability by providing a crystalline structure wherein the solid soln. by substitution of copper atoms is formed in silicate skeleton. CONSTITUTION:A catalyst for purifying nitrogen oxide in exhaust gases contains as main component the crystalline copper silicate shown by Mn+m (CunAlmSi96-n-mO192).16H2O (wherein M is Na or K ion and n+m

3. 发明专利

JPS63116742A CATALYST FOR PURIFYING EXHAUST GAS 失效
公开(公告)号：JPS63116742A
公开(公告)日：1988-05-21
申请号：JP26252286
申请日：1986-11-04
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： MATSUMOTO SHINICHI , MIYOSHI NAOTO , KIMURA MAREO , OZAWA MASAKUNI , ISOTANI AKIO
IPC分类号： B01D53/94 , B01J23/56 , B01J23/63 , B01J23/76
摘要： PURPOSE:To prevent the lowering in purifying capacity at high temp., by supporting a catalystic metal by a supporting layer consisting of oxides of cerium, zirconium and lanthanum partially being a composite oxide or a solid solution. CONSTITUTION:A catalyst supporting layer containing cerium oxide, zirconium oxide and lanthanum oxide partially present at least as a composite oxide or a solid solution is formed to a carrier base material having a honeycomb form composed of activated alumina. A noble metal such as Pt, Rh, Pd, Ir, Ru or Os or a base metal such as Cr, Ni, V, Cu, Co or Mn is supported by said catalyst supporting layer to form a catalyst for purifying exhaust gas. This catalyst is excellent in oxygen storage capacity at high temp. and the detachment of the catalyst supporting layer from the carrier base material is prevented.

4. 发明专利

JPS63116741A CATALYST FOR PURIFYING EXHAUST GAS 失效
公开(公告)号：JPS63116741A
公开(公告)日：1988-05-21
申请号：JP26252186
申请日：1986-11-04
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： MATSUMOTO SHINICHI , MIYOSHI NAOTO , KIMURA MAREO , OZAWA MASAKUNI , ISOTANI AKIO
IPC分类号： B01D53/94 , B01J23/56 , B01J23/63 , B01J23/76
摘要： PURPOSE:To prevent the lowering in purifying capacity at high temp., by forming a catalyst for purifying exhaust gas by supporting a catalytic metal by a catalyst supporting layer consisting of cerium oxide and zirconium partially present as a composite oxide. CONSTITUTION:A catalyst for purifying exhaust gas is formed by supporting a catalytic metal by a catalyst supporting layer consisting of cerium oxide and zirconium oxide partially present at least as a composite oxide or a solid solution. In this case, the cerium atom and zirconium atom supported as the composite oxide or solid solution are pref. constituted so that the atomic ratio of the number of zirconium atom to that cerium atoms is 5:95-80:20. As the catalytic metal, a noble metal such as Pt, Rh, Pd, Ir, Ru or the like can be used.

5. 发明专利

JPH07308579A EXHAUST GAS PURIFYING CATALYST AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07308579A
公开(公告)日：1995-11-28
申请号：JP12820794
申请日：1994-05-17
申请人： TOYOTA CENTRAL RES & DEV
发明人： SAKAMOTO TOSHIYUKI , HIGUCHI KAZUO , TAKAHASHI NAOKI , KIMURA MAREO , DOI HARUO , ISOTANI AKIO
IPC分类号： B01D53/86 , B01D53/94 , B01J23/89
摘要： PURPOSE:To provide an exhaust gas purifying catalyst for purifying hydrocarbons (HC), carbon monoxide (CO), nitrogen oxide (NOx) in an exhaust gas discharged from an internal combustion engine of automobile or the like and excellent in durability and cost reduction, and the production method of the catalyst. CONSTITUTION:This catalyst gas a porous carrier and one or more kind of a transition metal-alloyed platinum or palladium supported with the porous carrier. The catalyst forms a hardly volatile oxide when it is used in lean atmosphere and the oxide is reduced in rich atmosphere.

6. 发明专利

JPH07171348A EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE USING ALCOHOL FUEL 失效
公开(公告)号：JPH07171348A
公开(公告)日：1995-07-11
申请号：JP34648293
申请日：1993-12-22
申请人： TOYOTA CENTRAL RES & DEV
发明人： MATSUNAGA SHINICHI , DOI HARUO , ISOTANI AKIO
IPC分类号： B01D53/86 , B01D53/94 , B01J23/50
摘要： PURPOSE:To ensure that formaldehyde and methanol contained in an exhaust gas can be purified at a high purification rate by reducing the degree of poisoning of a catalyst by sulfur oxide contained in an exhaust gas from an internal combustion engine using alcohol fuel. CONSTITUTION:An exhaust gas purification system for an internal combustion engine using alcohol fuel consists of a sulfur oxide absorber installed in the front stage of an exhaust gas flow path of the internal combustion engine and a catalyst for the purification of an exhaust gas, with a porous carrier bearing at least, silver, which is installed in the rear stage of the sulfur oxide absorber.

7. 发明专利

JPS61130404A Sintering method of aluminum powder 失效
标题翻译：铝粉烧结方法
公开(公告)号：JPS61130404A
公开(公告)日：1986-06-18
申请号：JP25117984
申请日：1984-11-28
申请人： Toyota Central Res & Dev Lab Inc
发明人： ISOTANI AKIO , YAMADA SENICHI , KATO MASAHIKO
IPC分类号： B22F1/02 , B22F3/11 , B22F5/00 , C22C1/04
摘要： PURPOSE: To obtain a sintered alloy having excellent wear resistance by forming a chemical conversion-treated layer consisting of K
2 AlF
5 on the surface of Al powder which is sintering base body then mixing the powder with brazing filler metal powder and subjecting the powder mixture to compaction molding and sintering.
CONSTITUTION: The chemical conversion-treated layer consisting of potassium pentafluoroaluminate (K
2 AlF
5 ) is formed on at least one surface of the Al or Al alloy powder which is the sintering base body or the low melting Al alloy powder which is a brazing filler metal. Al-Si eutectic alloy powder contg., for example, about 7W12% Si is preferable for the low melting Al alloy powder as the brazing filler metal. About 99.5W97wt% Al powder and 0.5W3wt% low melting Al alloy powder are then mixed and after the powder mixture composed thereof is subjected to compaction molding, the molding is sintered in an atmosphere of an inert gas or reducing gas at the temp. above the m.p. of the brazing filler metal and below the m.p. of the Al powder.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在烧结基体的Al粉末的表面上形成由K2AlF5构成的化学转化处理层，得到具有优异耐磨性的烧结合金，然后将粉末与钎料金属粉末混合，并对粉末混合物进行压实成型和烧结。构成：在作为烧结基体的Al或Al合金粉末或作为钎料的低熔点Al合金粉末的至少一个表面上形成由五氟铝酸钾（K2AlF5）组成的化学转化处理层。对于作为钎料的低熔点Al合金粉末，优选Al-Si共晶合金粉末，例如约7-12％的Si。然后混合约99.5-97重量％的Al粉末和0.5-3重量％的低熔点Al合金粉末，在将其组成的粉末混合物进行压实成型之后，将其在惰性气体或还原气体的温度下在温度。高于m.p. 的钎料，低于m.p. 的Al粉末。

8. 发明专利

JPH09222419A DEVICE AND METHOD FOR REACTION ANALYSIS 失效
公开(公告)号：JPH09222419A
公开(公告)日：1997-08-26
申请号：JP33114696
申请日：1996-12-11
申请人： TOYOTA CENTRAL RES & DEV
发明人： SAKAMOTO YOSHIYUKI , WATANABE YOSHIHIDE , HIGUCHI KAZUO , KIZAKI YOSHIMI , MOTOHIRO TOMOMI , YOKOTA KOJI , NODA MASAHARU , ISOTANI AKIO
IPC分类号： G01N27/62 , H01J49/04 , H01J49/40
摘要： PROBLEM TO BE SOLVED: To immediately analyze reaction with which multiple components participate by a constitution wherein an ionized gas is electrostatically accelerated in a prescribed direction and a mass number of ion of a reaction product is judged on the basis of time differences of ion arrivals. SOLUTION: A prescribed reaction gas is ejected in a pulse action from a pulse valve 31 for a prescribed time period to blow a surface of a specimen 9 during the operation of all of the vacuum pumps. A part of the reaction gas is absorbed to the surface of the specimen 9 to be activated and reacted so that a reaction produced gas is generated, then gradually desorbs from the surface of the specimen 9. A greater part of the gas that collides to the surface of the specimen and is reflected thereby is sucked from a discharge hole. The reaction produced gas that advances straight from the surface of the specimen 9 is passed to an analysis chamber 51. The reaction produced gas is ionized and accelerated in the analysis chamber 51 to reach an MCP via a flying time type mass analysis chamber. The mass is determined in accordance with the arrival time from the ionization to MCP and a relative quantity is measured based on the voltage. These measuring operations are executed by means of a digital oscilloscope and a measuring controller.

9. 发明专利

JPH06262079A CATALYST FOR NITROGEN OXIDE PURIFICATION AND NITROGEN OXIDE PURIFICATION 失效
公开(公告)号：JPH06262079A
公开(公告)日：1994-09-20
申请号：JP7764393
申请日：1993-03-10
申请人： TOYOTA CENTRAL RES & DEV
发明人： OZAWA MASAKUNI , SHINJO HIROBUMI , ISOTANI AKIO
IPC分类号： B01D53/94 , B01J23/64 , B01J23/652 , B01D53/36
摘要： PURPOSE:To provide a catalyst for nitrogen oxide purification which purifies nitrogen oxide in exhaust gas at a lower temperature than specific temperature as well as a method of purifying nitrogen oxide. CONSTITUTION:The subject catalyst for nitrogen oxide purification consists of MxMyOz which is a tungsten bronze-type oxide (0.1

10. 发明专利

JPH01168343A EXHAUST GAS PURIFYING CATALYST 失效
公开(公告)号：JPH01168343A
公开(公告)日：1989-07-03
申请号：JP32504887
申请日：1987-12-22
申请人： TOYOTA CENTRAL RES & DEV
发明人： OZAWA MASAKUNI , KIMURA MAREO , ISOTANI AKIO
IPC分类号： B01D53/94 , B01J23/64 , B01J23/656 , B01J23/89 , B01J37/04
摘要： PURPOSE:To improve the durability of a catalyst at a temperature of not less than 900 deg.C, by forming an exhaust gas purifying catalyst of a complex oxide of perovskite structure expressed in the specific general formula, a heat resisting complex oxide and noble metals. CONSTITUTION:An aqueous solution mixed in a predetermined stoichiometric proportion with a metal salt, e.g., nitride constituting a complex oxide having perovskite structure expressed in the formula I (wherein Ln represents rare earth metal, A represents alkali earth metal and M represents any one of transition metals 0

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