公开(公告)号：US20160327036A1

公开(公告)日：2016-11-10

申请号：US15104188

申请日：2014-12-10

申请人： NTN CORPORATION

发明人： Takuya ISHII ,  Hajime ASADA

IPC分类号： F04C2/10 ,  F04C15/00 ,  F04C11/00 ,  F04C18/02 ,  F04C29/02

CPC分类号： F04C2/102 ,  F04C11/005 ,  F04C15/0088 ,  F04C18/0215 ,  F04C29/025 ,  F04C2230/21 ,  F04C2230/60 ,  F04C2240/20 ,  F04C2240/50 ,  F04C2240/60 ,  F05C2225/08 ,  F16C17/107 ,  F16C33/1065 ,  F16C33/205 ,  F16C2206/06 ,  F16C2208/02 ,  F16C2208/22 ,  F16C2208/32 ,  F16C2208/36 ,  F16C2220/04 ,  F16C2360/42

摘要： Provided is an internal gear pump integrally provided with a plain bearing requiring fewer machining steps, allowing inexpensive manufacture, and offering a highly stable seizing property. An 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 the liquid that has been suctioned into the suction-side chamber are formed between the inner teeth and outer teeth; a drive shaft (9) fixed to the inner rotor (3); 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). The cover (6) has a plain bearing part (11) for rotatably supporting the drive shaft (9), and the plain bearing part (11) is formed by injection-molding a thermoplastic resin composition directly onto the cover (6).

摘要翻译： 提供一体的内齿轮泵，其一体地设置有需要较少加工步骤的滑动轴承，允许廉价的制造，并且提供高度稳定的抓住性能。 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，外齿轮 在内齿和外齿之间形成有与内齿啮合的齿，并且在内齿和外齿之间形成有用于抽吸液体的吸入侧室和用于排出被吸入吸入侧室中的液体的排出侧室; 固定在内转子（3）上的驱动轴（9）; 壳体（5），其中形成有用于容纳所述次摆线（4）的凹部（5a）; 以及用于封闭壳体（5）的凹部（5a）的盖（6）。 盖（6）具有用于可旋转地支撑驱动轴（9）的滑动轴承部分（11），并且通过将热塑性树脂组合物直接注射到盖（6）上而形成滑动轴承部分（11）。

公开(公告)号：US20160348675A1

公开(公告)日：2016-12-01

申请号：US15117274

申请日：2015-01-30

申请人： NTN CORPORATION

发明人： Takuya ISHII ,  Kei HATTORI

IPC分类号： F04C15/06 ,  F04C18/02 ,  F04C15/00 ,  F04C11/00 ,  F04C2/10

CPC分类号： F04C15/06 ,  F04C2/102 ,  F04C11/001 ,  F04C15/0003 ,  F04C18/0215 ,  F04C2230/20 ,  F04C2230/21 ,  F04C2230/60 ,  F04C2240/30 ,  F05C2225/00

摘要： Provided is a transverse internal gear pump that can be manufactured at low cost, and also has a high safety factor in terms of functionality. This transverse internal gear pump 1 has a trochoid 4, in which an inner rotor 3 having a plurality of outer teeth is rotatably accommodated within an outer rotor 2 having a plurality of inner teeth, the inner rotor being rotatably accommodated within the outer rotor in an eccentric state and with the outer teeth and the inner teeth meshing, and in which an intake-side volume chamber for taking in a liquid and an ejection-side volume chamber for ejecting liquid taken into the intake-side volume chamber are formed between the inner teeth and the outer teeth; a liquid intake nozzle 9 extending in a non-perpendicular direction with respect to the trochoid rotation surfaces and having a distal end immersed in a liquid reservoir 18; a pump casing 5 in which a recessed portion 5a for accommodating the trochoid is formed; and a pump cover 6 for closing off the recessed portion. An intake cover 8 that has the liquid intake nozzle 9 is secured to the pump casing 5, and the liquid intake nozzle 9 and the intake cover 8 are integrally molded by the injection molding of a resin composition.

摘要翻译： 提供了可以以低成本制造的横向内齿轮泵，并且在功能方面也具有高安全性因素。 该横向内齿轮泵1具有次摆线4，其中具有多个外齿的内转子3可旋转地容纳在具有多个内齿的外转子2内，内转子可旋转地容纳在外转子内 偏心状态与外齿和内齿啮合，并且其中吸入侧体积室用于吸入液体和喷射侧容积室用于喷射进入吸入侧容积室的液体形成在内部 牙齿和外齿; 液体吸入喷嘴9，其相对于次摆线旋转表面在非垂直方向上延伸并且具有浸入液体储存器18中的远端; 一个泵壳体5，其中形成有用于容纳余摆线的凹部5a; 以及用于封闭凹部的泵盖6。 具有液体吸入喷嘴9的进气盖8固定在泵壳体5上，液体吸入喷嘴9和进气盖8通过树脂组合物的注塑成型而一体成形。

公开(公告)号：US20170276175A1

公开(公告)日：2017-09-28

申请号：US15505884

申请日：2015-08-21

申请人： NTN CORPORATION

发明人： Takuya ISHII ,  Satoru FUKUZAWA ,  Hirohisa ABE ,  Akihiro OOMORI

IPC分类号： F16C29/02 ,  F04B27/08 ,  B29C45/56 ,  B29C44/42 ,  B29C45/17 ,  B29C45/00 ,  F16C33/20 ,  F04B27/10

摘要： The present invention provides a method for producing a durable semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at a start time of an operation of a swash plate compressor, can be restrained from deteriorating in its lubricating property due to generated frictional heat, and can be restrained from deteriorating in its strength at a production time and an injection molding die. A semispherical shoe (4), for a swash plate compressor, to be produced by the production method has a base material (5), consisting of a hard material, which has a hollow part along a central axis thereof and a resin layer, consisting of a resin composition, which is formed on a surface of a planar part, disposed on a periphery of the base member, which is to be subjected to sliding contact with the swash plate and on a surface of a spherical part, disposed on the periphery thereof, which is to be subjected to sliding contact with a piston. A resin-filled portion (8) where the resin composition is filled and an empty portion where the resin composition is not filled are formed in the hollow part of the base material. The resin-filled portion (8) and the resin layer are formed by injecting and filling the resin composition into a portion to be formed as the resin-filled portion (8) with the base material (5) being disposed inside a cavity (22) of the injection molding die.

公开(公告)号：US20220074503A1

公开(公告)日：2022-03-10

申请号：US17417363

申请日：2019-12-24

申请人： NTN CORPORATION

发明人： Ken YASUDA ,  Takuya ISHII

IPC分类号： F16K5/04 ,  F16J15/20 ,  F16J15/3204 ,  F16K5/06 ,  F16K25/00

摘要： To provide a flow control valve seal that is manufactured at a low cost, that makes wear damage of a rotor with which the flow control valve seal slidably contacts less, and that is superior in its low leak performance, low friction performance, and low wear performance. A seal (6) is installed in a flow control valve device (1) including a housing (2) having an introduction part (5) that receives a cooling water from an internal combustion engine, and a resin rotor (4) disposed in the housing (2) and having a spherical outer peripheral surface (4a), the rotor (4) being rotated relative to the housing (2). The seal (6) is disposed between the introduction part (5) and the rotor (4) in the housing (2) and slidably contacts with the outer peripheral surface (4a) of the rotor (4). The seal (6) is an injection molded body of a resin composition having injection-moldable fluororesin as a base resin. The fluororesin is at least one resin selected from among a tetrafluoroethylene-perfluoro alkylvinyl ether copolymer resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, and a tetrafluoroethylene-ethylene copolymer resin.

公开(公告)号：US20190353162A1

公开(公告)日：2019-11-21

申请号：US16484419

申请日：2018-02-07

申请人： NTN CORPORATION

发明人： Takuya ISHII ,  Daichi ITO ,  Katsushi TAKEO ,  Satoru FUKUZAWA

IPC分类号： F04C18/02 ,  F04C27/00

摘要： Provided is a tip seal for a scroll compressor capable of reducing a frictional force between scroll members and the tip seal and contributing to energy saving of the scroll compressor while maintaining the sealing performance. A tip seal 1 in a spiral shape for sealing a compression chamber formed between a fixed scroll and a movable scroll in a scroll compressor provided with the fixed scroll and the movable scroll serving as the scroll members has a plurality of concave parts 4 formed by partially notching a sliding surface 5 on the sliding surface 5 for the scroll members, the concave parts 4 are arranged on at least one of a spiral inner peripheral surface 1b and a spiral outer peripheral surface 1a, and each of the concave parts 4 opens to the inner peripheral surface 1b or the outer peripheral surface 1a and also does not penetrate through the inner peripheral surface 1b or the outer peripheral surface 1a.

公开(公告)号：US20170211560A1

公开(公告)日：2017-07-27

申请号：US15328204

申请日：2015-07-22

申请人： NTN CORPORATION

发明人： Takuya ISHII ,  Satoru FUKUZAWA ,  Hirohisa ABE ,  Akihiro OOMORI

IPC分类号： F04B27/10

摘要： It is an object of the present invention to provide a semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at the start time of an operation of a swash plate compressor, is excellent in its sliding contact property and load resistance, does not deteriorate in its lubricating property due to generated frictional heat, does not subject a resin layer to peeling from a base material, and ensures sufficient durability. It is another object of the present invention to provide a swash plate compressor in which a lubricating film is not formed on a sliding contact surface of the swash plate and that of a piston owing to the use of the semispherical shoe. A semispherical shoe (4) is subjected to sliding contact with the swash plate of the swash plate compressor and the piston thereof. Abase material (5) consists of a metallic member. A resin layer (6b) is formed on a surface of a planar part (4b) to be subjected to sliding contact with the swash plate. A resin layer (6a) is formed on a surface of a spherical part (4a) to be subjected to sliding contact with the piston. The resin layer (6a) and the resin layer (6b) are integral with each other. At least one portion of the base material (5) is not covered with the resin layer (6) and is exposed.

公开(公告)号：US20160341251A1

公开(公告)日：2016-11-24

申请号：US15117408

申请日：2015-02-06

申请人： NTN CORPORATION

发明人： Noriyoshi YOSHIZUKA ,  Naoki YASHIRO ,  Kouya OOHIRA ,  Takuya ISHII

IPC分类号： F16C33/20 ,  B29C45/14 ,  B22F3/02 ,  B22F5/10 ,  F16C17/02 ,  F16C33/12

CPC分类号： F16C33/208 ,  B22F1/0059 ,  B22F3/02 ,  B22F5/106 ,  B22F7/08 ,  B29C45/1459 ,  B29K2023/0683 ,  B29K2027/18 ,  B29K2905/12 ,  B29L2031/04 ,  C22C33/0264 ,  F16C17/02 ,  F16C17/10 ,  F16C33/128 ,  F16C33/201 ,  F16C2208/02 ,  F16C2208/32 ,  F16C2208/78 ,  F16C2220/20 ,  F16C2370/00

摘要： Provided is a sliding bearing that can keep the price low while maintaining a bearing property over a long period. The sliding bearing is a sliding bearing 1 having a bearing periphery portion 2 formed of a metal base material, and a resin layer 3 formed on a surface to be a sliding surface of the bearing periphery portion, wherein the metal base material is an unsintered green compact formed by compacting a raw material powder containing a metal powder capable of forming an oxide film as a major raw material, and the oxide film has been formed between particles of the metal powder by means of steam treatment or the like, and the unsintered green compact has a radial crushing strength of more than 100 MPa.

摘要翻译： 提供一种能够在保持轴承性能的同时保持价格低的滑动轴承。 滑动轴承是具有由金属基材形成的轴承周边部分2的滑动轴承1和形成在作为轴承周边部分的滑动面的表面上的树脂层3，其中金属基材是未烧结的绿色 通过压制含有能够形成氧化膜的金属粉末作为主要原料的原料粉末形成的压块，并且通过蒸汽处理等在金属粉末的颗粒之间形成氧化物膜，并且未烧结的绿色 紧凑型的径向破碎强度大于100MPa。