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公开(公告)号：US20150204325A1
公开(公告)日：2015-07-23
申请号：US14420351
申请日：2013-07-26
Applicant: NTN CORPORATION
Inventor： Takuya Ishii , Masato Shimoda , Hajime Asada , Kei Hattori
CPC classification number: F04C2/14 , F01C21/10 , F04C2/086 , F04C2/102 , F04C11/005 , F04C15/06 , F04C2210/14 , F04C2230/21 , F04C2230/22 , F04C2230/231 , F04C2240/51 , F05C2253/20
Abstract: Provided is an internal gear pump requiring fewer machining steps, allowing inexpensive manufacture, and offering high safety from the standpoint of function. The internal gear pump 1 comprises: a trochoid 4 in which an inner rotor 3 having a plurality of outer teeth is eccentrically and rotatably accommodated in an outer rotor 2 having a plurality of inner teeth, the outer teeth meshing with the inner teeth, and in which a suction-side chamber for suctioning liquid and a discharge-side chamber for discharging liquid that has been suctioned into the suction-side chamber are formed in between the inner teeth and outer teeth; a casing 5 in which is formed a recess 5a for accommodating the trochoid 4; and a cover 6 for closing off the recess 5a of the casing 5. At least some of the casing 5 is a body injection-molded from a resin composition. The invention also comprises a groove 5d in a portion of the recess 5a of the casing 5 in which the outer periphery is sealed, with a sealing ring 13 installed therein, and bushings 7 made from sintered metal that are provided integrally during injection molding in bolt fixing hole portions.
Abstract translation: 提供了一种需要更少加工步骤的内齿轮泵，允许廉价的制造，并且从功能的角度提供高安全性。 内齿轮泵1包括：次摆线4，其中具有多个外齿的内转子3偏心并可旋转地容纳在具有多个内齿的外转子2中，外齿与内齿啮合，并且在 在内齿和外齿之间形成有用于吸入液体的吸入侧室和用于排出被吸入吸入侧室的液体的排出侧室; 壳体5，其形成有用于容纳次摆线4的凹部5a; 以及用于封闭壳体5的凹部5a的盖6.壳体5中的至少一个是从树脂组合物注射成型的主体。 本发明还包括在壳体5的凹部5a的一部分中的凹槽5d，其中外周被密封，其中安装有密封环13，以及由在金属螺栓中注射成型期间一体地设置的由烧结金属制成的衬套7 固定孔部分。
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Patent Agency Ranking
公开(公告)号：US20150204383A1
公开(公告)日：2015-07-23
申请号：US14388738
申请日：2013-02-08
Applicant: NTN CORPORATION
Inventor： Takuya Ishii , Masato Shimoda , Yasushi Oohashi , Satoru Fukuzawa
CPC classification number: F16C33/201 , F04B1/141 , F04B53/14 , F05C2253/20 , F16C17/02 , F16C33/208 , F16C2208/36 , F16C2240/60 , F16C2360/42 , F16H25/24 , F16H2025/249 , Y10T74/1987
Abstract: There is provided a composite plain bearing having excellent heat resistance, creep resistance under high surface pressure, low friction, abrasion resistance, and other characteristics while being capable of manufacture with high productivity. A composite plain bearing (1) comprising an ingot metal plate (2) and a resin layer (3) comprises a resin composition in which an aromatic polyether ketone resin or the like is used as a base resin, wherein the resin layer (3) is overlaid by injection molding and integrally provided on the surface on the surface of the ingot metal plate (2) to a thickness of 0.1 to 0.7 mm. The ingot metal plate (2) is chemically surface-treated on a face joined to the resin layer (3).
Abstract translation: 提供了一种复合滑动轴承，其具有优异的耐热性，在高表面压力下的抗蠕变性，低摩擦力，耐磨性等特性，同时能够以高生产率制造。 包含铸锭金属板（2）和树脂层（3）的复合滑动轴承（1）包括使用芳族聚醚酮树脂等作为基础树脂的树脂组合物，其中树脂层（3） 通过注射成型覆盖，并且一体地设置在金属板（2）的表面上，厚度为0.1〜0.7mm。 在与树脂层（3）接合的面上对锭金属板（2）进行化学表面处理。
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公开(公告)号：US11873863B2
公开(公告)日：2024-01-16
申请号：US17762706
申请日：2020-09-09
Applicant: NTN CORPORATION
Inventor： Satoru Fukuzawa , Masato Shimoda
IPC: F16C19/06 , F16C33/58 , F16C35/07 , F16C35/073 , F16C35/077
CPC classification number: F16C33/58 , F16C19/06 , F16C35/073 , F16C35/077 , F04C2240/50
Abstract: To provide an insulating rolling bearing that is capable of preventing electrolytic corrosion and preventing a gap from being undesirably formed between a shaft and a raceway ring. A sub bearing 21 includes an inner ring 22, an outer ring 23, balls 24 interposed between the inner ring and the outer ring, and an insulating bushing 28 fitted to an inner peripheral portion of the inner ring 22. The insulating bushing 28 includes a generally cylindrical metal base 28a, and a resin layer 28b formed on an inner peripheral surface of the metal base 28a. The insulating bushing 28 is fitted to the inner peripheral portion of the inner ring 22 such that the metal base 28a abuts on the inner peripheral portion of the inner ring 22.
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公开(公告)号：US09810215B2
公开(公告)日：2017-11-07
申请号：US14420351
申请日：2013-07-26
Applicant: NTN CORPORATION
Inventor： Takuya Ishii , Masato Shimoda , Hajime Asada , Kei Hattori
CPC classification number: F04C2/14 , F01C21/10 , F04C2/086 , F04C2/102 , F04C11/005 , F04C15/06 , F04C2210/14 , F04C2230/21 , F04C2230/22 , F04C2230/231 , F04C2240/51 , F05C2253/20
Abstract: Provided is an internal gear pump requiring fewer machining steps, allowing inexpensive manufacture, and offering high safety from the standpoint of function. The internal gear pump 1 comprises: a trochoid 4 in which an inner rotor 3 having a plurality of outer teeth is eccentrically and rotatably accommodated in an outer rotor 2 having a plurality of inner teeth, the outer teeth meshing with the inner teeth, and in which a suction-side chamber for suctioning liquid and a discharge-side chamber for discharging liquid that has been suctioned into the suction-side chamber are formed in between the inner teeth and outer teeth; a casing 5 in which is formed a recess 5a for accommodating the trochoid 4; and a cover 6 for closing off the recess 5a of the casing 5. At least some of the casing 5 is a body injection-molded from a resin composition. The invention also comprises a groove 5d in a portion of the recess 5a of the casing 5 in which the outer periphery is sealed, with a sealing ring 13 installed therein, and bushings 7 made from sintered metal that are provided integrally during injection molding in bolt fixing hole portions.
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公开(公告)号：US10436250B2
公开(公告)日：2019-10-08
申请号：US15579929
申请日：2016-06-03
Applicant: NTN CORPORATION
Inventor： Masato Shimoda , Yuusuke Doi
Abstract: To provide a retainer for a thrust bearing, which is to be assembled and decomposed regularly for being washed, having superior ball retaining performance itself and being attached and detached easily, and a thrust bearing having the retainer. A retainer for a thrust bearing 1, which retains a plurality balls intervened between a pair of raceway rings in a thrust bearing, is formed of a ring shaped plate member 2 formed of an injection molded body of a resin composition containing fluororesin, which is capable of injection molding, as a base resin. The ring shaped plate member 2 includes a plurality of ball pockets 3 in a circumferential direction of a ring shape. Each of the ball pockets 3 includes a claw portion divided into two portions 3a or more to retain a ball 5 in a detachable manner. The claw portion 3a is defined by a slit 4 formed on at least one surface 2a among facing surfaces of the ring shaped plate member 2 facing raceway rings, the slit 4 being formed around an opening 3d of the ball pocket 3.
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公开(公告)号：US10077807B2
公开(公告)日：2018-09-18
申请号：US14388738
申请日：2013-02-08
Applicant: NTN CORPORATION
Inventor： Takuya Ishii , Masato Shimoda , Yasushi Oohashi , Satoru Fukuzawa
CPC classification number: F16C33/201 , F04B1/141 , F04B53/14 , F05C2253/20 , F16C17/02 , F16C29/02 , F16C33/208 , F16C2208/36 , F16C2240/60 , F16C2360/42 , F16H25/24 , F16H2025/249 , Y10T74/1987
Abstract: There is provided a composite plain bearing having excellent heat resistance, creep resistance under high surface pressure, low friction, abrasion resistance, and other characteristics while being capable of manufacture with high productivity. A composite plain bearing (1) comprising an ingot metal plate (2) and a resin layer (3) comprises a resin composition in which an aromatic polyether ketone resin or the like is used as a base resin, wherein the resin layer (3) is overlaid by injection molding and integrally provided on the surface on the surface of the ingot metal plate (2) to a thickness of 0.1 to 0.7 mm. The ingot metal plate (2) is chemically surface-treated on a face joined to the resin layer (3).
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