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    Oil pump for internal combustion engine and method of operating the same
    1.
    发明授权
    Oil pump for internal combustion engine and method of operating the same 失效
    内燃机油泵及其运行方法

    公开(公告)号：US06739305B2

    公开(公告)日：2004-05-25

    申请号：US10092505

    申请日：2002-03-08

    Applicant: Toshihiro Takahara ,  Yoshihiko Doi

    Inventor： Toshihiro Takahara ,  Yoshihiko Doi

    IPC: F01M100

    CPC classification number: F01M1/02 ,  F01M2001/0215 ,  F01M2001/123

    Abstract: An oil pump for an internal combustion engine is provided with an intake port and a discharge port, each formed in a pump housing. The oil pump has a power pump serving as a first main pump and an electric pump serving as a second auxiliary pump, both of which may be contained in a same pump housing. The power pump is rotated by a driving force of a crankshaft, and the electric pump is rotated by the driving force of an electric motor. This makes it possible to reduce the maximum capacity of the power pump serving as the main pump. In a vehicle operating range where the oil discharging pressure generated by the power pump becomes insufficient, the electric pump serving as the auxiliary pump is operated together with the power pump such that appropriate oil discharging pressure or appropriate oil discharging quantity can be achieved. The electric pump may also be allowed to operate for a period of time after shutting off of the engine.

    Abstract translation: 一种用于内燃机的油泵设置有进气口和排出口，每个都形成在泵壳体中。 油泵具有用作第一主泵的动力泵和用作第二辅助泵的电动泵，它们都可以容纳在相同的泵壳体中。 动力泵由曲轴的驱动力旋转，电动泵由电动机的驱动力旋转。 这使得可以减小用作主泵的动力泵的最大容量。 在由动力泵产生的排油压力不足的车辆工作范围内，用作辅助泵的电动泵与动力泵一起操作，从而可以实现适当的排油压力或适当的排油量。 在关闭发动机之后，电动泵也可以被允许操作一段时间。

    Formation of a ceramic composite by centrifugal casting
    3.
    发明授权
    Formation of a ceramic composite by centrifugal casting 失效
    通过离心铸造形成陶瓷复合材料

    公开(公告)号：US5262366A

    公开(公告)日：1993-11-16

    申请号：US602851

    申请日：1990-10-26

    Applicant: Akira Yamakawa ,  Yoshihiko Doi ,  Masaya Miyake

    Inventor： Akira Yamakawa ,  Yoshihiko Doi ,  Masaya Miyake

    IPC: C04B35/584 ,  C04B35/591 ,  C04B35/80 ,  C04B35/58 ,  C04B35/76

    CPC classification number: C04B35/591 ,  C04B35/584 ,  C04B35/806

    Abstract: A ceramic compact having excellent high temperature strength, toughness and reliability, which comprises a matrix preferably composed predominantly of silicon nitride and ceramic fibers uniformly dispersed in the matrix and orientated in a desired direction, said matrix and fibers being closely bonded by sintering. This compact is produced, for example, by preparing a shaped body of silicon, for example, in which ceramic fibers are uniformly dispersed by centrifugal casting and then heating and nitriding the shaped body in a nitrogen atmosphere to form a fiber-reinforced silicon nitride sintered compact. The ceramic fibers may include such fibers as aluminum oxide or silicon carbide fibers. Sintering assistants, such as silicon nitride, may be used to prepare the sintered compact.

    Abstract translation: 具有优异的高温强度，韧性和可靠性的陶瓷压块，其包含优选主要由氮化硅组成的基体和均匀分散在基体中并沿所需方向取向的陶瓷纤维的所述基体和纤维通过烧结紧密结合。 该压坯例如通过制备例如通过离心铸造均匀分散陶瓷纤维然后在氮气气氛中加热和氮化成形体的硅成形体来制造，以形成纤维增强的氮化硅烧结体 紧凑。 陶瓷纤维可以包括诸如氧化铝或碳化硅纤维的纤维。 可以使用诸如氮化硅的烧结助剂来制备烧结体。

    Super hard metal roll assembly and production thereof
    6.
    发明授权
    Super hard metal roll assembly and production thereof 失效
    超硬金属辊组装及其生产

    公开(公告)号：US4137106A

    公开(公告)日：1979-01-30

    申请号：US708759

    申请日：1976-07-26

    Applicant: Yoshihiko Doi ,  Yasuhiro Saito ,  Mitsunori Kobayashi ,  Seiki Hiraoka

    Inventor： Yoshihiko Doi ,  Yasuhiro Saito ,  Mitsunori Kobayashi ,  Seiki Hiraoka

    IPC: B21B27/00 ,  B22F7/06 ,  B22F7/02

    CPC classification number: B21B27/00 ,  B22F7/06 ,  Y10T428/12146

    Abstract: A super hard metal roll assembly and a process for producing it are disclosed. Initially, a powdered mix of super hard metal materials is moulded into a hollow cylindrical moulding. The moulding is then fitted about a super hard metal cylindrical element such as roll, cylinder, pillar or shaft, and sintered to contract to a bushing tightly engaging the outer periphery of the cylindrical element to produce a super hard metal roll assembly. The roll assembly may be further treated in a high temperature and high pressure inert gas in order to eliminate voids at the interface between the bushing and the cylindrical element.

    Abstract translation: 公开了一种超硬金属辊组件及其制造方法。 最初，将超硬金属材料的粉末混合物模制成中空圆柱形模制品。 然后将模制件围绕超硬金属圆柱形元件（例如辊，圆柱体，柱或轴）进行安装，并且烧结以收缩到与圆柱形元件的外周紧密接合的衬套以产生超硬金属辊组件。 可以在高温和高压惰性气体中进一步处理辊组件，以便消除衬套和圆柱形元件之间的界面处的空隙。

    Composite carbide powder used for cemented carbide and method of producing the same
    7.
    发明授权
    Composite carbide powder used for cemented carbide and method of producing the same 失效
    用于硬质合金的复合碳化物粉末及其制造方法

    公开(公告)号：US5928976A

    公开(公告)日：1999-07-27

    申请号：US859228

    申请日：1997-05-19

    Applicant: Yoshiharu Yamamoto ,  Nobuaki Asada ,  Yoshihiko Doi

    Inventor： Yoshiharu Yamamoto ,  Nobuaki Asada ,  Yoshihiko Doi

    IPC: B23B27/14 ,  B22F1/00 ,  C01B32/949 ,  C01B31/34

    CPC classification number: C01B31/34 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/80

    Abstract: In order to provide cemented carbide, provision is made about tungsten carbide powder which has a grain size not smaller than 1 .mu.m and which is mixed with carbon powder and chromium powder to form raw powder. The tungsten carbide powder is formed by fine primary crystal particles of tungsten carbide and satisfies an inequality given by:Y>0.61-0.33 log (X),where Y denotes a half-value width of (211) crystal planes in tungsten carbide (JCPDS-card 25-1047, d=0.9020) measured by a X-ray diffraction method and where X denotes a grain size measured by the FSSS method. There is also provided a method of producing the composite carbide powder having tungsten carbide powder as a main element, the method comprising the steps of preparing tungsten powder which has a mean grain size not smaller than 1 .mu.m, mixing the tungsten powder with carbon powder and chromium powder into a mixture, and processing the mixture in a predetermined atmosphere into fine primary crystal particles of tungsten carbide. One or more of the following additional components may be added to the mixture: Ta, Mo, Nb and Zr.

    Abstract translation: 为了提供硬质合金，对碳化钨粉末进行了规定，该碳化钨粉末的粒径不小于1μm，与碳粉和铬粉混合形成原料粉末。 碳化钨粉末由碳化钨的微细的一次结晶粒子形成，满足由下式给出的不等式：Y> 0.61-0.33log（X），其中Y表示碳化钨中（211）晶面的半值宽度（JCPDS 卡25-1047，d = 0.9020），X表示通过FSSS法测定的晶粒尺寸。 还提供了以碳化钨粉末为主要成分的复合碳化物粉末的制造方法，其特征在于，具有平均粒径为1μm以上的钨粉末，碳粉末 和铬粉末混合成混合物，并将预定气氛中的混合物加工成碳化钨的细晶粒。 可以向混合物中加入一种或多种以下附加组分：Ta，Mo，Nb和Zr。

    Highly hard material coated articles
    8.
    发明授权
    Highly hard material coated articles 失效
    高硬度材料涂层制品

    公开(公告)号：US4402994A

    公开(公告)日：1983-09-06

    申请号：US410919

    申请日：1982-08-24

    Applicant: Mitsunori Kobayashi ,  Yoshihiko Doi

    Inventor： Mitsunori Kobayashi ,  Yoshihiko Doi

    IPC: B23B27/14 ,  B23P15/28 ,  C23C14/06 ,  C23C14/32 ,  C23C30/00 ,  C30B28/12 ,  C30B29/36 ,  C30B29/38 ,  B05D1/00 ,  B32B15/04 ,  C23C15/00

    CPC classification number: C23C14/32 ,  C23C30/00 ,  C23C30/005 ,  Y10S428/911 ,  Y10T428/24983 ,  Y10T428/31678

    Abstract: This invention relates to a highly hard material coated article which comprises a substrate of tool or part consisting of cermets, cemented carbides, tool steels or stainless steels and at least one highly hard material coated on the surface thereof, selected from the group consisting of carbides, nitrides and carbonitrides of at least one of titanium, zirconium and hafnium and those in which oxygen is dissolved, the coating being formed by an ion plating method wherein the accelerating voltage is high in a short time at the initial stage only, the crystals of the coated film being strongly orientated in the direction of for the surface of the tool or part so that the diffraction intensity ratio of the peak from the {220} plane and the secondly strong diffraction peak in the X-ray diffraction using Cu-K.alpha. ray, that is, the diffraction intensity ratio is 15 or less of the latter to 100 of the former and the half value width of the diffraction peak from the {220} plane of the coating film being 0.8.degree. or more on 2.theta. scale.

    Abstract translation: 本发明涉及一种高硬度材料涂层制品，其包括由金属陶瓷，硬质合金，工具钢或不锈钢组成的工具或部件的基底以及涂覆在其表面上的至少一种高硬度材料，所述材料选自碳化物 ，钛，锆和铪中的至少一种的氮化物和碳氮化物以及氧气溶解的氮化物和碳氮化物，通过离子镀法形成涂层，其中仅在初始阶段的短时间内的加速电压高， 该涂膜对于工具或部件的表面以<220°的方向强烈取向，使得在使用Cu的X射线衍射中，来自{220}面的峰与第二强衍射峰的衍射强度比 -Kα射线，也就是说，后者的衍射强度比为15以下，前者的100倍和来自c的{220}面的衍射峰的半值宽度 在2θ刻度上，起泡膜为0.8°或更大。

    Highly hard material coated articles
    9.
    发明授权
    Highly hard material coated articles 失效
    高硬度材料涂层制品

    公开(公告)号：US4401719A

    公开(公告)日：1983-08-30

    申请号：US258550

    申请日：1981-04-29

    Applicant: Mitsunori Kobayashi ,  Yoshihiko Doi

    Inventor： Mitsunori Kobayashi ,  Yoshihiko Doi

    IPC: B23B27/14 ,  B23P15/28 ,  C23C14/06 ,  C23C14/32 ,  C23C30/00 ,  C30B28/12 ,  C30B29/36 ,  C30B29/38 ,  B32B15/04 ,  B05D3/06 ,  C23C15/00

    CPC classification number: C23C14/32 ,  C23C30/00 ,  C23C30/005 ,  Y10S428/911 ,  Y10T428/24983 ,  Y10T428/31678

    Abstract: This invention relates to a highly hard material coated article which comprises a substrate of tool or part consisting of cermets, cemented carbides, tool steels or stainless steels and at least one highly hard material coated on the surface thereof, selected from the group consisting of carbides, nitrides and carbonitrides of at least one of titanium, zirconium and hafnium and those in which oxygen is dissolved, the coating being formed by an ion plating method wherein the accelerating voltage is high in a short time at the initial stage only, the crystals of the coated film being strongly orientated in the direction of for the surface of the tool or part so that the diffraction intensity ratio of the peak from the {220} plane and the secondly strong diffraction peak in the X-ray diffraction using Cu-K.alpha. ray, that is, the diffraction intensity ratio is 15 or less of the latter to 100 of the former and the half value width of the diffraction peak from the {220} plane of the coating film being 0.8.degree. or more than 2 .theta. scale.

    Abstract translation: 本发明涉及一种高硬度材料涂层制品，其包括由金属陶瓷，硬质合金，工具钢或不锈钢组成的工具或部件的基底，以及涂覆在其表面上的至少一种高硬度材料，其选自碳化物 ，钛，锆和铪中的至少一种的氮化物和碳氮化物以及氧气溶解的氮化物和碳氮化物，通过离子镀法形成涂层，其中仅在初始阶段的短时间内的加速电压高， 该涂膜对于工具或部件的表面以<220°的方向强烈取向，使得在使用Cu的X射线衍射中，来自{220}面的峰与第二强衍射峰的衍射强度比 -Kα射线，也就是说，后者的衍射强度比为15以下，前者的100倍和来自c的{220}面的衍射峰的半值宽度 浇注膜为0.8°或2°以上。

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