专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4056834A1 CYLINDER LINER AND CYLINDER BORE 审中-实审
公开(公告)号：EP4056834A1
公开(公告)日：2022-09-14
申请号：EP19951589.1
申请日：2019-11-06
申请人： TPR CO., LTD. , TPR INDUSTRY CO., LTD.
发明人： OHIRA, Masayuki , UMEDA, Naoki , TAMAKI, Seiji , SATO, Takashi , OIZUMI, Takashi
IPC分类号： F02F1/00
摘要： The present invention addresses the problem of providing a cylinder liner or a cylinder bore, which can reduce not only friction on a sliding surface but also oil consumption. In a piston sliding direction of the cylinder bore, grooves of a second sliding region positioned on the side of crankcase have a higher groove area ratio at a depth of 0.3 µm than grooves of a first sliding region positioned on the side of combustion chamber, and the groove area ratio is in a specific range, whereby friction and oil consumption can be reduced.

2. 发明公开

EP3957415A1 CYLINDER LINER FOR INSERT CASTING 有权
公开(公告)号：EP3957415A1
公开(公告)日：2022-02-23
申请号：EP20873383.2
申请日：2020-06-24
申请人： TPR CO., LTD. , TPR INDUSTRY CO., LTD.
发明人： The designation of the inventor has not yet been filed
IPC分类号： B22D17/00 , B22D17/32 , B22D19/08
摘要： An object of the present invention is to provide a cylinder liner for insert casting that can improve the joining strength between a cylinder liner and a cylinder block by reducing voids generated between the cylinder liner and the cylinder block.
The above-described problem can be solved when the molten metal running index YI defined by the following Formula (1) is from 2.2 to 14.5. Molten metal running index YI = area ratio S t % of top portions of protrusions × molten metal infiltration volume V mm 3 / surface area A mm 2 of cylinder liner base / average surface-to-surface distance P av between top portions of protrusions mm

3. 发明公开

EP3901477A1 THRUST WASHER 有权
公开(公告)号：EP3901477A1
公开(公告)日：2021-10-27
申请号：EP19900474.8
申请日：2019-12-13
申请人： TPR CO., LTD.
发明人： IKEDA, Masaki , HAMANAKA, Shuichirou
IPC分类号： F16C17/04 , F16C33/10 , F16C33/20
摘要： Provided is a thrust washer, which enables achievement of a reduction in sliding load. A thrust washer (20) includes: oil grooves (25) formed in at least one of the front surface or the back surface, which are recessed with respect to a sliding surface (26) and are configured to receive lubricating oil flowing thereinto; opening portions (27) formed on an inner peripheral end side of an ring-shaped portion (21) for the oil grooves (25), which are recessed with respect to sliding surface (26) and are configured to allow the lubricating oil to be flowed into the oil grooves (25) from an insertion hole (22) side; and an oil stop wall (28) formed at an end portion of at least one of the oil grooves (25) on an outer periphery side of the ring-shaped portion (21), which is configured to separate the oil groove (25) and an outside of the ring-shaped portion (21) from each other and suppress flow of the lubricating oil flowed into the oil groove (25) to an outer periphery side of the ring-shaped portion (21), the oil stop wall (28) being formed at the same position as a position of the sliding surface (26) in a thickness direction of the oil stop wall (28). A sliding area ratio of each of the sliding surfaces (26) to a projection plane in plan view of the ring-shaped portion is set to fall within a range of from 60% to 85%.

4. 发明公开

EP3805545A1 CYLINDRICAL MEMBER 有权
公开(公告)号：EP3805545A1
公开(公告)日：2021-04-14
申请号：EP18910238.7
申请日：2018-12-12
申请人： TPR CO., LTD. , TPR INDUSTRY CO., LTD.
发明人： SATO, Akira , SATO, Takashi , ABE, Mako
IPC分类号： F02F1/00 , B22D13/02 , B22D13/10 , B22D19/00
摘要： To provide a cast iron cylindrical member capable of improving the bonding strength when metal on the outer peripheral side and the cast iron cylindrical member are integrated. For this objective, in a cast iron cylindrical member including a plurality of projections including constricted projections on the outer peripheral surface, the anchor portion index (I) represented by {(A av 2 - B av 2 ) × π/4 × Pn x Pr/100} × 0.35H/2 is set in a specific range.

5. 发明公开

EP3327321A1 SEAL RING 有权转让
公开(公告)号：EP3327321A1
公开(公告)日：2018-05-30
申请号：EP16871798.1
申请日：2016-10-21
申请人： TPR Co., Ltd.
发明人： YAMAGUCHI, Hitoshi , OGA, Teppei
IPC分类号： F16J15/26
摘要： Provided is a seal ring causing less friction and having a low oil leakage property even under a state in which a shaft rotation frequency or a housing rotation frequency is high, and being capable of reducing a shaft rotation torque. A level difference portion that forms a second width (a21 and a211) smaller than a first width (a1) is formed on a longitudinal sectional shape of the seal ring as viewed in a circumferential direction from a seal ring outer peripheral surface (13) side toward a seal ring inner peripheral surface (12) side. The level difference portion is formed so that a center line (M2) of the secondwidth in the circumferential direction of the seal ring in which a sealed fluid flows draws a trajectory of extending along the circumferential direction and shifting from an abutment joint end surface on an inner periphery side of a seal ring abutment joint portion at one end toward an abutment joint end surface on the inner periphery side of the seal ring abutment joint portion at another end so as to be closer to the seal ring contact surface (14).

6. 发明授权

EP2577015B8 COOLING SYSTEM FOR PISTON OF INTERNAL COMBUSTION ENGINE 有权
标题翻译：冷却系统的内燃发动机活塞
公开(公告)号：EP2577015B8
公开(公告)日：2014-09-10
申请号：EP11732511.8
申请日：2011-06-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , TPR Co., Ltd. , Art Metal Mfg. Co., Ltd.
发明人： KOYAMA, Takashi , UMEDA, Naoki , ISHIDA, Masao , NAGATA, Satoshi , HARASHINA, Kenichi , NAKASONE, Hideaki , TSUKADA, Ichiro , TOYOSHIMA, Akinori , HIRANO, Masaya
IPC分类号： F01P3/10 , F01M1/16
CPC分类号： F01P3/02 , F01P3/10 , F02F3/22

7. 发明授权

EP2365233B1 Combination oil ring 有权转让
标题翻译：组合油环
公开(公告)号：EP2365233B1
公开(公告)日：2014-04-30
申请号：EP11156601.4
申请日：2011-03-02
申请人： TPR Co., Ltd.
发明人： Ayuzawa, Noriaki , Hama, Masahide , Kitazume, Yutaka
IPC分类号： F16J9/06
CPC分类号： F16J9/068

8. 发明公开

EP4206498A1 COMBINATION OF PISTON RINGS AND COMBINED STRUCTURE OF PISTON AND PISTON RINGS 审中-实审
公开(公告)号：EP4206498A1
公开(公告)日：2023-07-05
申请号：EP21951933.7
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： F16J9/12
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 hl(2), an axial width of the third compression ring is hl(3) and an axial width of the oil ring is h1(4), h1(1) ≥ h1(2) and h1(1) ≥ h1(3), and when hl(TOTAL) = h1(1) + h1(2) + h1(3) + h1(4), h1(TOTAL) ≥ 3.1 mm.

9. 发明公开

EP4130444A1 SINTERED ALLOY VALVE GUIDE, AND METHOD FOR MANUFACTURING SINTERED ALLOY VALVE GUIDE 审中-实审
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.

10. 发明公开

EP3657000A1 CAST IRON CYLINDER LINER, AND INTERNAL COMBUSTION ENGINE 有权
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)].

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式