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1. 发明专利

JPH116406A ENGINE VALVE, AND COMBINATION OF ENGINE VALVE AND VALVE SEAT 失效
公开(公告)号：JPH116406A
公开(公告)日：1999-01-12
申请号：JP16095697
申请日：1997-06-18
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON FUNMATSU GOKIN KK
发明人： DAIZA SETSUHITO , FUWA YOSHIO , TOMINAGA TADAYOSHI , TAGUCHI ATSUSHI , KANDA KATSUJI , ESUMI TAKEHIKO
IPC分类号： F01L3/02 , B23K9/00 , B23K9/04
摘要： PROBLEM TO BE SOLVED: To obtain an engine valve having reduced abrasion loss, and the combination of the engine valve and a valve seat. SOLUTION: In an engine valve equipped with a face part abutting a valve seat, and consisting of a base material of heat resisting steel; a nitriding layer including a sulfide is formed on at least the face part by the penetration of nitrogen and sulfur. The nitriding layer can be generally formed of an inner side nitriding layer having an Hv of 450 or more, having the main body of a nitride (Fe3 S and CrS), and also actually having no sulfide; and of a coexisting layer having an Hv of 350-450 wherein a sulfide (FeS) and a nitride coexist. The valve seat is constituted by dispersing a Co group hard particles, having an Hv of 450-950, of a Co- Mo- Cr- Si type in an Fe- C- Co base ground.

2. 发明专利

JP2002294411A STEEL FOR EXHAUST VALE HIGH IN HIGH-TEMPERATURE STRENGTH AND SUPERIOR IN RESISTANCES TO CORROSION AND ABRASION 失效
公开(公告)号：JP2002294411A
公开(公告)日：2002-10-09
申请号：JP2001095777
申请日：2001-03-29
申请人： TOHOKU STEEL , TOYOTA MOTOR CORP , AISAN IND
发明人： NISHIZAWA YOSHITAKA , OWARI NAOYUKI , ANDO KIMIHIKO , TOMINAGA TADAYOSHI , SAKURAI KOJI
IPC分类号： F01L3/02 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel for an exhaust valve having superior high- temperature strength, corrosion resistance, and abrasion resistance, which can cope with the exhaust-temperature elevated by combustion in a theoretical air-fuel ratio (λ=1), and can be applied to both gasoline and diesel engines. SOLUTION: This steel for the exhaust valve includes, by mass, 0.45-0.60% C, 0.1-0.5% Si, 6.0-8.0% Mn, 8.0-11.0% Ni, 22.0-24.0% Cr, 0.4-1.0% Cu, 0.3-0.6% Nb, 0.5-2.0% Mo, 0.35-0.50% N, 0.5-2.0% W, and 0.001-0.01% B, in a range satisfying 0.85-1.00% C+N, and 2.0-3.0% Mo+W, and the balance Fe and unavoidable impurities.

3. 发明专利

JP2000186635A CANISTER 失效
公开(公告)号：JP2000186635A
公开(公告)日：2000-07-04
申请号：JP36442398
申请日：1998-12-22
申请人： AISAN IND , TOYOTA MOTOR CORP
发明人： HATTORI SATOSHI , KATO TAKASHI , YAMADA HIDEO , TOMINAGA TADAYOSHI , NAGASAKA MASAHARU , TERADA MITSUSAKU , KIYOMIYA SHINSUKE
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To prevent burrs generated from a fusion part from flowing to an engine through a purge port, and prevent it from invading into an inside of a check valve by arranging a wall in the vicinity of the fusion part so as to isolate the purge port and the fusion part for fusing a filter and a casing with protrusions for fusion. SOLUTION: Protrusions 2A, 2B for fusion are formed along a full circumference in the vicinity of a circumference of adsorbent chambers 7A, 7B for adsorbing evaporation fuel, on circumferential flat parts 3A, 3B formed on a casing 1 of a canister, and walls 8A, 8B are formed in the vicinity of insides of the protrusions 2A, 2B. Spaces (recessed parts) 9A, 9B are defined between the protrusions 2A, 2B and lower surfaces of the walls 8A, 8B and filters 4A, 4B. The filters 4A, 4B are mounted on flat parts 3A, 3B, and burr generated in the case where the protrusions 2A, 2B and the filters 4A, 4B and fused with ultrasonic wave are housed in spaces 9A, 9B so as to prevent fused burr from invading into check valves 6A, 6B.

4. 发明专利

JP2004169128A Surface treatment method for titanium member, and engine valve applying the surface treatment method 有权
公开(公告)号：JP2004169128A
公开(公告)日：2004-06-17
申请号：JP2002336789
申请日：2002-11-20
申请人： Aisan Ind Co Ltd , 愛三工業株式会社
发明人： TOMINAGA TADAYOSHI , TAKAMOTO TADAO , USHIO TERUHISA
IPC分类号： F01L3/02 , C23C8/12 , F01L3/04
CPC分类号： F01L3/04 , F01L2101/00 , F01L2103/00 , Y10T29/49298
摘要： PROBLEM TO BE SOLVED: To provide a surface treatment method for a titanium member capable of securing a required fatigue strength and wear resistance, and to provide an engine valve applying the surface treatment method. SOLUTION: In the surface treatment method for aapplying an oxidizing treatment onto the surface of the titanium member 10 consisting of a titanium-base material, an effective thickness according to the necessary hardness is obtained from a relation between the thickness and the hardness of an oxidize-hardened layer 18 formed on the surface of the titanium member 10 by the oxidizing treatment, and an effective surface roughness according to the necessary hardness is obtained from a relation between the surface roughness and the hardness of the oxidize-hardened layer 18. Then, the oxidizing treatment is applied to the titanium member 10 in the oxidization conditions ( oxidization temperature and time) satisfying both conditions of the effective thickness and the effective surface roughness. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2006207490A Engine valve and surface treatment method for engine valve 审中-公开
标题翻译：发动机阀门和表面处理方法
公开(公告)号：JP2006207490A
公开(公告)日：2006-08-10
申请号：JP2005021318
申请日：2005-01-28
申请人： Aisan Ind Co Ltd , 愛三工業株式会社
发明人： TOMINAGA TADAYOSHI , TAGUCHI ATSUSHI , FUKAYA NORIMICHI
IPC分类号： F01L3/02 , C23C8/12 , C23C14/02
CPC分类号： C23C8/80 , F01L3/04 , Y10T29/49298
摘要： PROBLEM TO BE SOLVED: To provide a surface treatment method for an engine valve made of titanium or titanium alloy capable of forming a hardened film of high adhesion with a surface, excellent in wear resistance and shock resistance. SOLUTION: This surface treatment method for the engine valve made of titanium or titanium alloy includes a hardening treatment process forming a hardened layer on a surface of the engine valve by making oxygen dissolve as solid solution inward from the surface of the engine valve and a coating treatment process applying coating treatment by PVD method on the surface of the engine valve after the hardening treatment process. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够形成具有与表面高粘合性的硬化膜的钛或钛合金制成的发动机阀的表面处理方法，耐磨性和耐冲击性优异。解决方案：用于由钛或钛合金制成的发动机阀的表面处理方法包括：硬化处理工艺，其通过使氧气作为固溶体从发动机阀门的表面向内溶解，从而在发动机气门的表面上形成硬化层以及在硬化处理工序之后，通过PVD法在发动机阀门的表面上进行涂布处理的涂布处理工序。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004115907A Surface treatment method for titanium material 审中-公开
标题翻译：钛材料表面处理方法
公开(公告)号：JP2004115907A
公开(公告)日：2004-04-15
申请号：JP2002319047
申请日：2002-09-26
申请人： Aisan Ind Co Ltd , 愛三工業株式会社
发明人： YAMADA SHIGEKI , TOMINAGA TADAYOSHI
IPC分类号： F01L3/02 , C23C8/04 , C23C8/10 , C23C8/24
摘要： PROBLEM TO BE SOLVED: To provide a surface treatment method for a titanium material having wear resistance and high fatigue strength in which treatment stages are reduced and by which stable oxidation prevention is possible.
SOLUTION: In the oxidation treatment for imparting wear resistance, nitriding treatment is performed to a part requiring fatigue strength, so that the diffusion of oxygen can stably sufficiently be prevented. Thus, though the reduction of its fatigue strength has been compensated, e.g., by the wall thickness or the like of the material, it is made needless, and a thin, lightweight titanium member in which wear resistance and high fatigue strength can be combined is obtainable. Further, only the part requiring fatigue strength is subjected to nitriding by using a nitriding chamber, so that processes are reduced, and also, continuous treatment is made possible. Thus, the treatment is extremely inexpensive, and is excellent in productivity.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有耐磨性和高疲劳强度的钛材料的表面处理方法，其中处理阶段被降低并且可以进行稳定的氧化防止。解决方案：在用于赋予耐磨性的氧化处理中，对要求疲劳强度的部分进行渗氮处理，从而能够稳定地防止氧的扩散。因此，尽管其疲劳强度的降低已被补偿，例如通过材料的壁厚等而变得不必要，并且可以组合耐磨性和高疲劳强度的薄的轻质钛构件是：获得。此外，仅通过使用氮化室对仅需要疲劳强度的部分进行氮化，从而减少加工，并且可以进行连续的处理。因此，处理非常便宜，生产率优异。版权所有（C）2004，JPO

7. 发明专利

JP2008215157A Engine valve 审中-公开
标题翻译：发动机阀
公开(公告)号：JP2008215157A
公开(公告)日：2008-09-18
申请号：JP2007052543
申请日：2007-03-02
申请人： Aisan Ind Co Ltd , 愛三工業株式会社
发明人： SAKAGUCHI HIROSHI , TOMINAGA TADAYOSHI , FUKAYA NORIMICHI
IPC分类号： F01L3/02 , C23C8/26 , F01L3/20
摘要： PROBLEM TO BE SOLVED: To improve fatigue strength while reducing costs.
SOLUTION: This engine valve is manufactured by an engine valve manufacturing method comprising a step of hardening an engine valve molded unit of a solid structure with a valve shaft part and a valve umbrella part are integrally formed by forging ferroalloy material, a step of applying low-temperature tempering to the engine valve molded unit after hardening, a step of machining the engine valve after applying low-temperature tempering, and a process of surface-treating the engine valve after machining at a temperature lower than the temperature of the low-temperature tempering.
COPYRIGHT: (C)2008,JPO&INPIT

8. 发明专利

JP2004025198A Diffusion welding method, manufacturing method of joining component and engine valve, and engine valve manufactured thereby 审中-公开
公开(公告)号：JP2004025198A
公开(公告)日：2004-01-29
申请号：JP2002181777
申请日：2002-06-21
申请人： Aisan Ind Co Ltd , 愛三工業株式会社
发明人： TOMINAGA TADAYOSHI , SUZUKI TAKIO
IPC分类号： F01L3/02 , B23K20/00 , B23K20/02 , B23K20/14 , B23K103/14
CPC分类号： B23K20/023 , Y10T428/12493 , Y10T428/19
摘要： PROBLEM TO BE SOLVED: To provide a diffusion welding method and a manufacturing method of a joining component and an engine valve that reduce the cost by improving processing efficiency, and also to provide the engine valve manufactured thereby. SOLUTION: Either the valve shaft member 20 or the valve head member 30 is composed of a titanium based material. Also, one member is made of a material that can be diffusion-welded to the other member. Diffusion welding is performed by thermally treating, in a vacuum furnace, the welding projection (weld zone) 24 of the valve shaft member 20 and the welding recess (weld zone) 34 of the valve head member 30. In this case, the thermal treatment is carried out in a state where the welding projection 24 of the valve shaft member 20 and the welding recess 34 of the valve head member 30 are fitted to each other with a prescribed interference. Thus, the engine valve (joining component) 10 is manufactured. COPYRIGHT: (C)2004,JPO

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