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1. 发明专利

JP2011111999A Engine valve gear for internal combustion engine 审中-公开
标题翻译：发动机内燃机发动机齿轮
公开(公告)号：JP2011111999A
公开(公告)日：2011-06-09
申请号：JP2009270363
申请日：2009-11-27
申请人： Nakamura Sangyo Gakuen , Nippon Piston Ring Co Ltd , 学校法人中村産業学園 , 日本ピストンリング株式会社
发明人： FUKUSHIMA MITSUHIRO , OGAWA EIJI , TANJI KYO
IPC分类号： F01L1/14
摘要： PROBLEM TO BE SOLVED: To provide an engine valve gear for an internal combustion engine, in which friction among a cam, a shim, and a valve lifter is sufficiently reduced.
SOLUTION: A disc-shaped recess part 11a is formed on an upper end face 11A of a valve lifter 10. The axis of the recess part 11a is arranged to be separated from the axis of the valve lifer 10 in an axial direction of a shaft 31. The shim 20 is disc-shaped, and a diameter of the recess part 11a is slightly larger than a diameter of the shim 20. The shim 20 is housed in the recess part 11a to be rotatable in a slide-contact manner with respect to the valve lifter 10, with positional relation coaxial with the recess part 11a. A part of an outer peripheral face 30B of the cam 30 abutting on an upper face 20B of the shim 20, that is, a central part of the outer peripheral face 30B of the cam 30 in an axial direction of the shaft 31 is arranged on the axis of the valve lifter 10.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于内燃机的发动机气门齿轮，其中凸轮，垫片和气门挺杆之间的摩擦充分降低。解决方案：在阀提升器10的上端面11A上形成有盘形的凹部11a。凹部11a的轴线被设置成沿着轴向方向与阀门升降器10的轴线分离垫片20是盘形的，并且凹部11a的直径略大于垫片20的直径。垫片20容纳在凹部11a中，以可滑动接触相对于气门挺杆10的位置关系与凹部11a同轴。凸轮30的外周面30B的一部分邻接在垫片20的上表面20B上，即凸轮30的外周面30B在轴31的轴向方向上的中心部分，其布置在阀升降器10的轴线。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2001234305A SINTERED MEMBER 失效
公开(公告)号：JP2001234305A
公开(公告)日：2001-08-31
申请号：JP2000048879
申请日：2000-02-21
申请人： NIPPON PISTON RING CO LTD
发明人： OGAWA EIJI , KUWABARA TAKESHI
IPC分类号： B22F5/00 , C22C38/00 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To provide a sintered member capable of suppressing initial scuffs and improving initial fitness, and also excellent in scuffing resistance and pitting resistance. SOLUTION: The sintered member contains by mass, 1.5 to 4.2% C, 2.0 to 24.0% Cr, 0.5 to 3.0% Mo,

3. 发明专利

JP2001227618A CAMSHAFT 失效
公开(公告)号：JP2001227618A
公开(公告)日：2001-08-24
申请号：JP2000045071
申请日：2000-02-17
申请人： NIPPON PISTON RING CO LTD
发明人： TAMAKI SHUICHI , KISHITANI TAKAO , OGAWA EIJI
IPC分类号： F01L1/04 , B22F3/24 , B22F5/00 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To provide a camshaft with improved durability and reliability by forming plural cams different in mode of contacting a counter member to have characteristics according to the contact mode. SOLUTION: This camshaft is provided with plural cams different in mode of contacting a counter member, and a first cam 3 brought into sliding contact with the counter members 5, 6 and a second cam 4 brought into rolling contact with the same. The first cam 3 is formed by conducting surface treatment for giving scuffing resistance for a pitching resisting sintered alloy, and the second cam 4 is formed by pitching resisting sintered alloy or pitching resisting steel subjected to quench-and-temper treatment.

4. 发明专利

JP2000213551A END PIECE PRESSURE CONTACT TYPE HOLLOW CAMSHAFT 失效
公开(公告)号：JP2000213551A
公开(公告)日：2000-08-02
申请号：JP1883299
申请日：1999-01-27
申请人： NIPPON PISTON RING CO LTD
发明人： OGAWA EIJI , TAKEGUCHI SHUNSUKE
IPC分类号： F01L1/04 , B21D53/84 , B23K20/12 , F01L1/047 , F16B11/00 , F16D1/06
摘要： PROBLEM TO BE SOLVED: To provide a hollow camshaft capable of confining a burr occurring during pressure welding of an end piece. SOLUTION: In a hollow camshaft 1 wherein an end piece 3 is pressure welded to at least on end of a hollow shaft 2, the end piece 3 includes an end member pressure welded to the hollow shaft 2 and a confining member 8 extending in an axial direction of the end member, inserted into the hollow shaft 2 during pressure welding, and confining a burr 5 occurring inside of the hollow shaft 2, and the confining member 8 is composed of a sealing part having roughly the same shape as the inside shape of the hollow shaft 2 and a connecting part connecting end faces of the sealing part and the end member and forming a confining space 11 between the end faces and an inner peripheral face of the hollow shaft 2.

5. 发明专利

JP2000144341A SINTERED MEMBER 失效
公开(公告)号：JP2000144341A
公开(公告)日：2000-05-26
申请号：JP34654198
申请日：1998-11-18
申请人： NIPPON PISTON RING CO LTD , MITSUBISHI MOTORS CORP
发明人： OGAWA EIJI , TAKEGUCHI SHUNSUKE , MIYAUCHI KENICHI , KOBAYASHI MIKIKAZU
IPC分类号： F01L1/04 , B22F1/00 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/22 , C22C38/40
摘要： PROBLEM TO BE SOLVED: To provide a sintered member excellent in scuffing-resistance and pitching resistance and used as sliding parts for an internal combustion engine. SOLUTION: This sintered member has a compsn. contg., by weight, 1.5 to 3.0% C, 2.0 to 12.0% Cr, 0.5 to 3.0% Mo, 0.2 to 1.0% Si, 0.2 to 1.0% P, and the balance Fe with inevitable impurities, and in which the base structure is formed of pearlite or has a compsn. contg. 1.5 to 3.0% C, 2.0 to 12.0% Cr, 0.5 to 3.0% Mo,

6. 发明专利

JP2006233824A Cam shaft 审中-公开
标题翻译：凸轮轴
公开(公告)号：JP2006233824A
公开(公告)日：2006-09-07
申请号：JP2005047934
申请日：2005-02-23
申请人： Nippon Piston Ring Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 日本ピストンリング株式会社
发明人： MORITA SHUJI , IMAMURA TOSHIO , ITO KAORU , OGAWA EIJI , TAKEGUCHI SHUNSUKE
IPC分类号： F01L1/04
CPC分类号： F01L2001/0475
摘要： PROBLEM TO BE SOLVED: To provide a cam shaft which is excellent in manufacturing workability, easily adjusted for changing a product specification and design, etc., good at cost reduction, highly practical, and excellent in damping properties.
SOLUTION: In the cam shaft 1 having at least a shaft 2 and cam piece 3, the shaft 2 is comprised of a hollow rigid pipe 4 and a damping member 5 arranged in the internal space of the rigid pipe, forming a closed gap and having an almost C shaped radial cross section. The damping member 5 is brought in contact with the inner peripheral surface of the hollow rigid pipe 4 at the outer peripheral surface by elastic restorability to exert the damping properties.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制造加工性优异的凸轮轴，容易调节以改变产品规格和设计等，成本降低，实用性和阻尼性优异。解决方案：在至少具有轴2和凸轮件3的凸轮轴1中，轴2包括中空刚性管4和布置在刚性管的内部空间中的阻尼构件5，形成封闭间隙并具有近似C形的径向横截面。阻尼部件5通过弹性恢复性与外周面的中空刚性管4的内周面接触，发挥阻尼特性。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2001349411A CAM PIECE AND METHOD OF MANUFACTURING CAMSHAFT 失效
公开(公告)号：JP2001349411A
公开(公告)日：2001-12-21
申请号：JP2000168978
申请日：2000-06-06
申请人： NIPPON PISTON RING CO LTD
发明人： OGAWA EIJI , KUWABARA TAKESHI
IPC分类号： B24C11/00 , B23P11/02 , F01L1/04 , F01L1/08 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To provide a cam piece having higher level abrasion resistance and scuffing resistance, and a manufacturing method of a camshaft. SOLUTION: This cam piece has a sliding surface satisfying the equation 1: 0.5

8. 发明专利

JPH10238326A ROCKER ARM 失效
公开(公告)号：JPH10238326A
公开(公告)日：1998-09-08
申请号：JP4324197
申请日：1997-02-27
申请人： NIPPON PISTON RING CO LTD
发明人： DAIGO FUMIYA , OGAWA EIJI
IPC分类号： F01M1/06 , F01L1/18 , F01M9/10
摘要： PROBLEM TO BE SOLVED: To supply the sufficient oil to a contact face with a valve stem end of an adjuster bolt, by installing a bypass on an oil passage from a shaft support face of an rocker arm to an adjuster bolt hole, and mounting an outlet of the bypass on an valve side opening of the adjuster bolt hole. SOLUTION: A bypass 11 is installed on an oil passage 4 from a shaft hole 2 externally fitted to a rocker shaft of a rocker arm 10, to an adjuster bolt hole 3. This bypass 11 is branched in front of the adjuster bolt hole 3, and is extended to a valve side in parallel with the adjuster bolt hole 3, and an outlet 12 of the same is located near a valve side opening of the adjuster bolt hole 3. When the oil feed amount of an oil pump is small, a temperature is low, and the viscosity of the oil is high at the start of an engine, or during the idling, the oil is flown out from the outlet 12 through the bypass 11, so that a contact face with a valve stem end 7 of an adjuster bolt 6 is effectively lubricated.

9. 发明专利

JPH0893884A MANUFACTURE OF MECHANICAL ELEMENT CONSTITUTED BY PRESS FITTING SHAFT IN ENGAGEMENT MEMBER 失效
公开(公告)号：JPH0893884A
公开(公告)日：1996-04-12
申请号：JP25763894
申请日：1994-09-27
申请人： NIPPON PISTON RING CO LTD
发明人： OGAWA EIJI
IPC分类号： F01L1/04 , C23C22/07 , F16D1/06 , F16D1/09 , F16H53/02
摘要： PURPOSE: To provide a manufacturing method of a mechanical element constituted by press fitting a shaft in an engagement member free to mold a shaft upheaved part to press fit and engage with the engagement member without causing a burr. CONSTITUTION: An upheaved part 3 is molded by heightening lubricity and workability of a shaft surface by way of applying phosphate coating on an outer peripheral surface of a shaft 2 and knurling a part to engage with an engagement member of the shaft outer peripheral surface, and the upheaved part 3 is press fit in a shaft hole of the engagement member.

10. 发明专利

JPH06193708A MANUFACTURE OF CAM SHAFT 失效
公开(公告)号：JPH06193708A
公开(公告)日：1994-07-15
申请号：JP34587392
申请日：1992-12-25
申请人： NIPPON PISTON RING CO LTD
发明人： EGAMI YASUKICHI , TAKEGUCHI SHUNSUKE , OGAWA EIJI
IPC分类号： B23K1/00 , B23K1/002 , C21D9/30 , F01L1/04 , F16H53/02
摘要： PURPOSE:To provide a method of manufacturing a cam shaft which can correspond to shortening both a cam shaft diameter and a cam piece width without using a heating furnace requiring a great deal of equipment cost. CONSTITUTION:A soldering material is arranged on a cam piece 11 tack-welded to a shaft 10. High-frequency heating with a relatively low frequency is applied to the cam piece 11 for a relatively long period, thereby soldering the cam piece 11 to the shaft 10. Next, high frequency heating with a relatively high frequency is applied to the cam piece 11, which was soldered in advance, for hardening, and immediately after this, the affected part is quenched with cooling water.

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