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1. 发明授权

US5845614A Valve operating system in internal combustion engine 失效
标题翻译：内燃机阀门操作系统
公开(公告)号：US5845614A
公开(公告)日：1998-12-08
申请号：US972241
申请日：1997-11-18
申请人： Shigekazu Tanaka , Shigemasa Kajiwara , Junji Yamano , Katsuaki Shiiki , Keiji Miura
发明人： Shigekazu Tanaka , Shigemasa Kajiwara , Junji Yamano , Katsuaki Shiiki , Keiji Miura
IPC分类号： F01L13/00 , F01L1/26
CPC分类号： F01L1/267 , F01L2105/02
摘要： A valve operating system includes a connection switch-over device provided in a plurality of cam followers. The connection switch-over device has a piston moved in response to a change in hydraulic pressure in a hydraulic pressure chamber. A roller shaft is disposed on at least one of the cam followers and has a roller carried thereon to come into rolling contact with a valve operating cam. In this valve operating system, the hydraulic pressure chamber and a communication passage, which permits an oil supply passage to communicate with the hydraulic pressure chamber, are defined in a particular one of all the cam followers, which moves a smallest amount when the connection switch-over device is in its disconnecting state. The roller shaft, having the roller rotatably carried thereon, is mounted on the cam follower other than the particular one cam follower. Thus, it is possible to avoid an increase in size of the particular one cam follower, and avoid a complicated assembling operation and passage construction. Moreover, the valve operating load is reduced to a minimum by using the roller.
摘要翻译：阀操作系统包括设置在多个凸轮从动件中的连接切换装置。连接切换装置具有响应于液压室中的液压变化而移动的活塞。辊轴设置在至少一个凸轮从动件上，并具有一个承载在其上以与阀操作凸轮滚动接触的辊。在该阀操作系统中，液压压力室和允许供油通道与液压室连通的连通通道被限定在所有凸轮从动件中的特定的一个中，当连接开关 -over设备处于断开状态。具有可旋转地承载在其上的辊的辊轴安装在除特定的一个凸轮从动件之外的凸轮从动件上。因此，可以避免特定的一个凸轮从动件的尺寸的增加，并且避免复杂的组装操作和通道构造。此外，通过使用辊将阀的操作负荷降低到最小。

2. 发明授权

US6016779A Valve operating system in internal combustion engine 失效
标题翻译：内燃机阀门操作系统
公开(公告)号：US6016779A
公开(公告)日：2000-01-25
申请号：US921255
申请日：1997-08-29
申请人： Hirotomi Nemoto , Shigekazu Tanaka , Shigemasa Kajiwara , Katsuaki Shiiki , Takeshi Gomi , Tetsuya Ishiguro
发明人： Hirotomi Nemoto , Shigekazu Tanaka , Shigemasa Kajiwara , Katsuaki Shiiki , Takeshi Gomi , Tetsuya Ishiguro
IPC分类号： F01L1/12 , F01L1/18 , F01L1/26 , F01L13/00
CPC分类号： F01L1/267 , F01L1/12 , F01L1/18 , F01L13/0015
摘要： A valve operating system in an internal combustion engine is disclosed, wherein the operational characteristic of an engine valve which is an intake valve or an exhaust valve, can be changed in accordance with the operational state of the engine. In the valve operating system, a power transmitting means comprises an inner wheel, an outer wheel surrounding the inner wheel, and a carrier on which a planetary rotor is rotatably carried. The inner wheel is operatively connected to a cam shaft, and the outer wheel is connected to the engine valve. A rotational-amount control device is connected to the carrier for controlling the rotational amount of the carrier in accordance with the operational state of the engine. Thus, the size of the valve operating system can be reduced, and moreover, the operational characteristics of the engine valve can be finely changed.
摘要翻译：公开了一种内燃机中的阀操作系统，其中可以根据发动机的运转状态改变作为进气门或排气阀的发动机气门的动作特性。在阀操作系统中，动力传递装置包括内轮，围绕内轮的外轮和行星转子可旋转地承载在其上的托架。内轮可操作地连接到凸轮轴，外轮连接到发动机气门。旋转量控制装置连接到载体，用于根据发动机的操作状态来控制载体的旋转量。因此，可以减小阀操作系统的尺寸，而且可以精细地改变发动机气门的操作特性。

3. 发明申请

US20050022906A1 Bainite type non-refined steel for nitriding, method for production thereof and nitrided product 审中-公开
标题翻译：用于氮化的贝氏体型非精炼钢，其制造方法和氮化产品
公开(公告)号：US20050022906A1
公开(公告)日：2005-02-03
申请号：US10499657
申请日：2003-01-24
申请人： Takaaki Harasaki , Takuya Nogami , Noriyuki Yamada , Katsuaki Shiiki , Shinya Takahashi , Takashi Kano , Yutaka Kurebayashi
发明人： Takaaki Harasaki , Takuya Nogami , Noriyuki Yamada , Katsuaki Shiiki , Shinya Takahashi , Takashi Kano , Yutaka Kurebayashi
IPC分类号： C22C38/00 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/60 , C23C8/26 , C22C38/18
CPC分类号： C23C8/26 , C21D2211/002 , C22C38/002 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/60 , Y02P10/212
摘要： An object of the present invention is to provide an untempered free-machining steel to be nitrided, not containing Pb, capable of securing a predetermined strength and hardness and having machinability higher than steel containing Pb; and nitrided products. To be more specific, the present invention relates to a bainite-type untempered free-machining steel to be nitrided containing C: 0.05 to 0.8 wt %, Si: 0.01 to 2.5 wt %, Mn: 0.1 to 3.5 wt %, P: 0.001 to 0.2 wt %, S: 0.01 to 0.2 wt %, Cr: 1.0 to 3.5 wt %, V: 0.1 to 0.5 wt %, Al: 0.001 to 0.020 wt %, Ca: 0.0005 to 0.02 wt %, and O: 0.0005 to 0.01 wt % and the residue with an alloy composition of unavoidable impurities and Fe as its basic alloy composition, provided that a content of each of the Mn, the S and the Cr satisfy the formula: ([Mn]−55×[S]/32+[Cr])>2.0, in which an occupation area of a sulfide inclusion present in contact with an oxide inclusion containing 8 to 62 wt % of CaO and containing not less than 1.0 wt % of Ca is not less than 2.0×10−4 mm2 per visual field area of 3.5 mm2. The present invention also relates to a method of manufacturing the above bainite-type untempered free-machining steel to be nitrided and nitrided products manufactured by the said manufacturing method.
摘要翻译：本发明的目的是提供一种能够确保预定强度和硬度并且具有高于含Pb的钢的切削加工性的未包含Pb的未经回收的自由加工钢; 和氮化产品。更具体地说，本发明涉及含有C：0.05〜0.8重量％，Si：0.01〜2.5重量％，Mn：0.1〜3.5重量％，P：0.001的氮化的贝氏体型未回火自由加工钢至0.2重量％，S：0.01〜0.2重量％，Cr：1.0〜3.5重量％，V：0.1〜0.5重量％，Al：0.001〜0.020重量％，Ca：0.0005〜0.02重量％，O：0.0005〜 0.01重量％，残留物中不可避免的杂质和Fe作为其基本合金组成的合金组成，其中Mn，S和Cr各自的含量满足下式：（[Mn] -55x [S] / 32+ [Cr]）> 2.0，其中与含有8至62重量％的CaO并且含有不少于1.0重量％的Ca的氧化物夹杂物存在的硫化物夹杂物的占有面积不小于2.0×10 6， -4> mm 2，视场面积为3.5mm 2。本发明还涉及一种制造上述贝氏体型未回火自由加工钢的方法，该钢是由所述制造方法制造的氮化和氮化产品。

4. 发明授权

US07575646B2 Heat-treated steel wire for high strength spring 有权
标题翻译：用于高强度弹簧的热处理钢丝
公开(公告)号：US07575646B2
公开(公告)日：2009-08-18
申请号：US10467493
申请日：2002-02-07
申请人： Masayuki Hashimura , Takanari Miyaki , Hiroshi Hagiwara , Hiroaki Hayashi , Shouich Suzuki , Katsuaki Shiiki , Noriyuki Yamada , Seiichi Koike
发明人： Masayuki Hashimura , Takanari Miyaki , Hiroshi Hagiwara , Hiroaki Hayashi , Shouich Suzuki , Katsuaki Shiiki , Noriyuki Yamada , Seiichi Koike
IPC分类号： C22C38/22
CPC分类号： C22C38/24 , C21D6/008 , C21D9/02 , C22C38/04 , C22C38/22 , C22C38/34
摘要： The present invention provides a steel wire, for springs excellent in coiling property while having a high strength, as a heat treated steel wire for high strength springs, characterized by: comprising, in mass, C: 0.75 to 0.85%, Si: 1.5 to 2.5%, Mn: 0.5 to 1.0%, Cr: 0.3 to 1.0%, P: not more than 0.015%, S: not more than 0.015%, N: 0.001 to 0.007%, W: 0.05 to 0.3%, and the balance consisting of Fe and unavoidable impurities; having a tensile strength of not less than 2,000 MPa; spheroidal carbides, composed of mainly cementite, observed in a microscopic visual field satisfying the area percentage of the spheroidal carbides not less than 0.2 μm in circle equivalent diameter being not more than 7%, the density of the spheroidal carbides 0.2 to 3 μm in circle equivalent diameter being not more than 1 piece/μm2, and the density of the spheroidal carbides over 3 μm in circle equivalent diameter being not more than 0.001 piece/μm2; the prior austenite grain size number being #10 or larger; the content of the retained austenite being not more than 12 mass %; the maximum diameter of carbides being not more than 15 μm; and the maximum diameter of oxides being not more than 15 μm.
摘要翻译：本发明提供一种用于高强度弹簧的热处理钢丝，具有高强度卷取性能优异的弹簧钢丝，其特征在于：以质量计含有C：0.75〜0.85％，Si：1.5〜 2.5％，Mn：0.5〜1.0％，Cr：0.3〜1.0％，P：不大于0.015％，S：不大于0.015％，N：0.001〜0.007％，W：0.05〜0.3％由Fe和不可避免的杂质组成; 拉伸强度不小于2000MPa; 球形碳化物主要由渗碳体组成，在满足圆形当量直径不小于0.2μm的球状碳化物的面积百分比的微观视野内观察不超过7％，球形碳化物的密度为0.2-3μm圆当量直径不大于1件/ mum2，圆形当量直径3毫米以上的球状碳化物的密度不大于0.001件/ mum2; 原奥氏体晶粒数为＃10以上; 残留奥氏体的含量不超过12质量％; 碳化物的最大直径不大于15μm; 氧化物的最大直径不大于15μm。

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