公开(公告)号：EP4130444A1

公开(公告)日：2023-02-08

申请号：EP21937219.0

申请日：2021-04-27

申请人： TPR Co., Ltd.

发明人： ITO, Fumiya ,  HARA, Shohtaroh

IPC分类号： F01L3/08

摘要： The present invention addresses the problem of providing a sintered alloy valve guide capable of inhibiting valve adhesion even in a high-temperature environment. The problem can be solved by a sintered alloy valve guide impregnated with a lubricating oil including pores that are sealed on the valve guide outer circumferential surface. More particularly, the problem is solved by the sealing step of performing a sealing treatment of pores on the outer circumferential surface of a sintered body impregnated with a lubricating oil.

公开(公告)号：EP3657000A1

公开(公告)日：2020-05-27

申请号：EP19840704.1

申请日：2019-07-05

申请人： TPR CO., LTD. ,  TPR INDUSTRY CO., LTD.

发明人： KAWAI Kiyoyuki ,  AMAIKE Shinji ,  NANGO Tetsuya ,  TAMAKI Seiji ,  HOSHINO Seeroku ,  SUZUKI Wataru ,  OIZUMI Takashi ,  YAGUCHI Hiroshi ,  SUZUKI Takashi

IPC分类号： F02F1/00 ,  F02F5/00 ,  F16J10/00

摘要： To reduce a friction, and to provide an excellent seizing resistance. Provided is a cast iron cylinder liner including an inner peripheral sliding surface made of cast iron, and an internal combustion engine including a cylinder bore including an inner peripheral sliding surface made of cast iron, wherein the inner peripheral sliding surface includes a region satisfying Expression (1) to Expression (3), Rvk / Rk ≥ 1.0 0.08 μ ⁢ m ≤ Rk ≤ 0.3 μm Rk − Rpk > 0 [Rk is the core roughness depth based on JIS B0671-2:2002, Rpk is the reduced peak height based on JIS B0671-2:2002, and Rvk is the reduced valley depth based on JIS B0671-2:2002 in Expression (1) to Expression (3)].

公开(公告)号：EP3636369A1

公开(公告)日：2020-04-15

申请号：EP18872685.5

申请日：2018-10-23

申请人： TPR CO., LTD.

发明人： BANDO Yoshio ,  ITO Fumiya ,  HARASHINA Kenichi

IPC分类号： B22F5/00 ,  B22F1/00 ,  C22C38/00 ,  F01L3/02 ,  F01L3/20

摘要： Provided are a valve guide made of an iron-based sintered alloy excellent in wear resistance and thermal conductivity, and a method of producing the same. Specifically, provided are a method of producing a valve guide made of an iron-based sintered alloy, the method including the steps of : molding raw material powder including diffusion-alloyed powder including core iron powder and Cu bonded to the core iron powder through diffusion to obtain a molded body; and sintering the molded body, to thereby produce a valve guide made of an iron-based sintered alloy, and a valve guide produced by the production method.

公开(公告)号：EP2778481B1

公开(公告)日：2017-05-10

申请号：EP12848605.7

申请日：2012-08-07

申请人： TPR Co., Ltd.

发明人： AYUZAWA Noriaki ,  NAKAZAWA Atsushi ,  HAMA Masahide ,  SHIBUYA Toshiyuki

IPC分类号： F16J9/06 ,  F02F5/00

CPC分类号： F16J9/06 ,  F16J9/068 ,  F16J9/12

摘要： To prevent side rails and a spacer expander of a combination oil ring from sticking to each other. A combination oil ring (10) includes a pair of upper and lower side rails (11, 12) and a spacer expander (13) arranged therebetween, the spacer expander (13) including a plurality of upper pieces (14) and lower pieces (15) alternately arranged in a circumferential direction with the pieces axially and circumferentially apart from each other, a coupling piece (16) coupling an upper piece (14) and a lower piece (15) adjacent to each other, and flange portions (17, 18) formed standing at inner circumferential-side end portions of the upper pieces (14) and the lower pieces (15) so as to press the side rails (11, 12), and a through hole (19) being formed in the flange portions (17, 18), wherein side rail support portions (14a, 15a) that project axially are formed at portions in the circumferential direction of outer circumferential-side end portions of the upper pieces (14) and the lower pieces (15) of the spacer expander (13).

摘要翻译： 防止组合油环的侧导轨和间隔扩张器相互粘连。 组合油环10包括一对上，下侧导轨11和12以及布置在它们之间的间隔件扩展器13，间隔扩展器13包括多个上部件14和下部件15，所述多个上部件14和下部件15在周向方向上交替地布置， 并且在圆周方向上彼此分开，连接相互相邻的上部件14和下部件15的连接件16以及在上部件14和下部件14的内周侧端部处竖立形成的凸缘部17和18 15，从而按压侧轨11,12，在凸缘部17,18上形成贯通孔19，在外周侧的圆周方向的一部分上形成有沿轴向突出的侧轨支承部14a，15a， 间隔外胀环13的上片14和下片15的侧端部。

公开(公告)号：EP2301691B1

公开(公告)日：2016-08-24

申请号：EP10014633.1

申请日：2006-07-06

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TPR Co., Ltd. ,  TPR Industry Co., Ltd.

发明人： Takami, Toshihiro ,  Hori, Kouhei ,  Tsukahara, Takeshi ,  Miyamoto, Noritaka ,  Hirano, Masaki ,  Ohta, Yukinori ,  Yamada, Satoshi ,  Shibata, Kouhei ,  Katou, Isao ,  Naruse, Yoshio ,  Saito, Giichiro ,  Horigome, Masami ,  Sato, Takashi

IPC分类号： B22D19/00 ,  F02F1/00

CPC分类号： B22D19/0009 ,  B22D19/0081 ,  F02F1/004 ,  Y10T29/49272

公开(公告)号：EP2787183A1

公开(公告)日：2014-10-08

申请号：EP12854384.0

申请日：2012-06-14

申请人： TPR Co., Ltd.

发明人： KOYAMA Yoshio ,  HANADA Fusanobu ,  HARA Shohtaroh

IPC分类号： F01L3/02 ,  B22F5/00

摘要： Provided is a valve seat having excellent strength and wear resistance. In a valve seat using an iron-based sintered alloy, an oxide mainly composed of triiron tetroxide is formed by oxidation treatment on the surface and interior of the iron-based sintered alloy, and the average area ratio of the oxide mainly composed of triiron tetroxide in a cross section of the iron-based sintered alloy in the state prior to installation on a cylinder head is 5 to 20%. Preferably, the iron-based sintered alloy contains hard particles formed from at least one compound of carbides, silicides, nitrides, borides, and intermetallic compounds containing one or more elements selected from groups 4a to 6a of the periodic table, and the average area ratio of the hard particles in the cross section of the iron-based sintered alloy in the state prior to installation on a cylinder head is 5 to 45%.

摘要翻译： 提供一种具有优异的强度和耐磨性的阀座。 在使用铁基烧结合金的阀座中，通过氧化处理在铁基烧结合金的表面和内部形成主要由四氧化三铁组成的氧化物，并且主要由四氧化三铁组成的氧化物的平均面积比 在安装在气缸盖上之前的状态下的铁基烧结合金的横截面为5至20％。 优选地，铁基烧结合金包含由碳化物，硅化物，氮化物，硼化物和金属间化合物中的至少一种化合物形成的硬质颗粒，所述金属间化合物包含选自元素周期表第4a至6a族的一种或多种元素，并且平均面积比 在安装于气缸盖之前的状态下的铁基烧结合金的截面中的硬质颗粒的比例为5％至45％。

公开(公告)号：EP2505685A1

公开(公告)日：2012-10-03

申请号：EP12157919.7

申请日：2012-03-02

申请人： TPR Co., Ltd.

发明人： Iwashita, Takatsugu ,  Sato, Tomoyuki

IPC分类号： C23C14/06 ,  F16J9/26

CPC分类号： F16J9/26 ,  C23C14/0605 ,  C23C14/16 ,  C23C28/044 ,  C23C28/44

摘要： A piston ring which is provided with a carbon-based coating which has a low friction property and wear resistance, that is, a piston ring which has a carbon-based coating formed over its sliding surface, in which piston ring, the coating is a multilayer coating comprised of two types of layers having different hardnesses laminated in at least two layers, a hardness difference between the two types of layers is 500 to 1700HV, a high hardness layer has the same or greater thickness than a low hardness layer, and the coating as a whole has a thickness of 5.0 µm or more. The high hardness layer has a thickness of 5 to 90 nm. The surface on which the coating is formed has a base material roughness of 1.0 µmRz or less.

摘要翻译： 一种活塞环，其设置有具有低摩擦性能和耐磨性的碳基涂层，即在其滑动表面上形成有碳基涂层的活塞环，活塞环中的涂层为 由具有不同硬度的两种类型的层叠在至少两层中的多层涂层，两种类型的层之间的硬度差为500至1700HV，高硬度层具有与低硬度层相同或更大的厚度， 涂层整体的厚度为5.0μm以上。 高硬度层的厚度为5〜90nm。 形成涂层的表面的基材粗糙度为1.0μmRz以下。

公开(公告)号：EP2495464A1

公开(公告)日：2012-09-05

申请号：EP12154834.1

申请日：2012-02-10

申请人： TPR Co., Ltd. ,  TPR Industry Co., Ltd.

发明人： Kamata, Koji ,  Takano, Yugo

IPC分类号： F16C33/02 ,  F16C33/08 ,  F16C33/20 ,  F16C35/06 ,  F16C35/07

CPC分类号： F16C33/06 ,  F16C33/08 ,  F16C33/12 ,  F16C33/208 ,  F16C35/02 ,  F16C35/077 ,  F16C2204/20 ,  F16C2220/02 ,  F16C2240/40

摘要： A support member with excellent contact with the member to which the support member (3) is attached, that is, a metal support member which supports a shaft (4) directly or through a bearing and which has a plurality of the projections (6) at its outer circumferential surface (5), wherein the plurality of the projections (6) are formed at the outer circumferential surface (5) as a whole at the time of casting of the support member (3) and wherein at least part of the projections (6) have thin-waisted shapes or a plastic support member which supports a shaft (4) directly or through a bearing and which has a plurality of the projections (6) at its outer circumferential surface (5), wherein the plurality of the projections (6) are formed at the outer circumferential surface (5) as a whole at the time of molding of the support member (3) and wherein at least part of the projections (6) have thin-waisted shapes.

摘要翻译： 与支撑构件（3）附接到的构件具有良好接触的支撑构件，即直接或通过轴承支撑轴（4）并具有多个突起（6）的金属支撑构件， 在其外圆周表面（5）处，其中在浇铸支撑构件（3）时整个在外圆周表面（5）处形成多个突起（6），并且其中至少部分 突起（6）具有薄腰形或塑料支撑构件，其直接或通过轴承支撑轴（4），并且在其外圆周表面（5）处具有多个突起（6），其中多个 在支撑部件（3）成型时，突起（6）整体形成在外周面（5）上，其中突起部（6）的至少一部分具有薄腰形状。

公开(公告)号：EP4411127A1

公开(公告)日：2024-08-07

申请号：EP22875486.7

申请日：2022-06-20

申请人： TPR CO., LTD.

发明人： HIKONE, Akira ,  KAWAI, Kiyoyuki

IPC分类号： F02F5/00 ,  F16J9/00

CPC分类号： F02F5/00 ,  F16J9/00

摘要： A combination of piston rings assembled to a piston of an internal combustion engine includes four compression rings. An outer peripheral surface of a first compression ring includes a barrel surface, an outer peripheral surface of a second compression ring includes an outer peripheral end portion and a taper surface, an outer peripheral surface of a third compression ring includes an outer peripheral end portion and a taper surface, and an outer peripheral surface of a fourth compression ring includes an outer peripheral end portion and a taper surface.

公开(公告)号：EP4206497A1

公开(公告)日：2023-07-05

申请号：EP21951934.5

申请日：2021-07-30

申请人： TPR CO., LTD.

发明人： NAGAKURA, Hiroyuki ,  INAMORI, Shuichi ,  HIKONE, Akira

IPC分类号： F16J9/00 ,  F16J9/06 ,  F16J9/12 ,  F16J9/20

摘要： A combination of piston rings assembled to a piston includes a first compression ring, a second compression ring, a third compression ring and an oil ring. When an axial width of the first compression ring is h1(1), an axial width of the second compression ring is h1(2), an axial width of the third compression ring is h1(3) and an axial width of the oil ring is h1(4), h1(1) ≥ h1(2) and h1(1) ≥ h1(3), and when h1(TOTAL) = h1(1) + h1(2) + h1(3) + h1(4), h1(TOTAL) ≥ 3.9 mm.