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. 发明专利

JP2002363681A SINTERED ALLOY, PRODUCTION METHOD THEREFOR AND VALVE SEAT 失效
公开(公告)号：JP2002363681A
公开(公告)日：2002-12-18
申请号：JP2001174885
申请日：2001-06-08
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： ANDO KIMIHIKO , MURASE HIROYUKI , TSUGE TOKUYUKI , ENDO KUNIHIKO , TOMITA KOJI , ISHIHARA NAOTOSHI , HAYAKAWA MASAHIRO
IPC分类号： F01L3/02 , B22F5/00 , B22F5/10 , C22C1/04 , C22C30/00 , C22C33/02 , C22C38/00 , C22C38/52 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To produce a sintered alloy which can exhibit wear resistance, to provide a production method therefor, and a valve seat having excellent wear resistance. SOLUTION: The sintered alloy has a composition containing, by weight, 4 to 30% Mo, 0.2 to 3% C, 1 to 30% Ni, 0.5 to 10% Mn and 2 to 40% Co, and the balance Fe with inevitable impurities. The sintered alloy has high wear resistance because of its improved density and improved soled lubricating action owing to an oxidation film.

2. 发明专利

JP2001324021A SEAL STRUCTURE, COMBUSTION GAS SEAL STRUCTURE OF FUEL INJECTION VALVE FOR CYLINDER INJECTION AND FUEL INJECTION VALVE FOR CYLINDER INJECTION 失效
公开(公告)号：JP2001324021A
公开(公告)日：2001-11-22
申请号：JP2000139865
申请日：2000-05-12
申请人： TOYOTA MOTOR CORP
发明人： ENDO KUNIHIKO
IPC分类号： F02F1/24 , F02F11/00 , F02M61/14 , F02M61/16 , F16J15/08
摘要： PROBLEM TO BE SOLVED: To provide a seal structure capable of keeping its sealing performance even in the case where excessive pressure is applied to a gasket. SOLUTION: This seal structure is so constructed that a coned disk washer- like gasket 15 is clamped between the sealing surfaces of a cylinder head 12 and a fuel injection valve 20 of an engine 10. The structure is provided with a regulating part 25 for regulating the gasket 15 from being plastically deformed when the pressure of combustion gas suddenly becomes excessive to deform the gasket 15. The regulating part 25 is formed by projecting the whole periphery of the outer peripheral part in the sealing surface of the fuel injection valve 20 at a designated height toward the sealing surface of the cylinder head 12.

3. 发明专利

JPH11229827A VALVE GEAR OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11229827A
公开(公告)日：1999-08-24
申请号：JP2739898
申请日：1998-02-09
申请人： TOYOTA MOTOR CORP
发明人： SHIRABE TAKEO , ENDO KUNIHIKO
IPC分类号： F01L1/08 , F01L1/26 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To increase the limit of the maximum amount of lift of the valve while maintaining appropriate contact between the cam lobe and lifter. SOLUTION: Valves 6, 16 are arranged inclined such that the shaft centers of the valves 6, 16 form a radial shape relative to the shaft center of the cylinder 2. The surface of valve lift cam lobes 13, 23 are formed in a tapered shape. Furthermore, a lifter center line, on which the surface of lifters 9, 19 attached to the valves 6, 16 so as to make contact with the cam lobes 13, 23 cross the vertical plane at the camshafts 12, 22. The cam lobes 13, 23 are located relative to the valves 6, 16 such that the lifter center line, which includes the shaft center of the valves 6, 16, and a line included on the surface of the cam lobes 13, 23, which passes through the center in the width direction of the cam lobes 13, 23, and the path of the contact points with the surface of the lifters 9, 19 cross at two points.

4. 发明专利

JPH11280441A Cylinder head of internal combustion engine 失效
标题翻译：内燃机气缸盖
公开(公告)号：JPH11280441A
公开(公告)日：1999-10-12
申请号：JP8173098
申请日：1998-03-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SHIRABE TAKEO , ENDO KUNIHIKO
IPC分类号： F01M1/06 , F01M9/10 , F01M11/02 , F02F1/24 , F02F1/42
CPC分类号： F02F1/4214
摘要： PROBLEM TO BE SOLVED: To prevent lubricating oil from deterioration due to its temperature rise by avoiding lubricating oil that has lubricated an exhaust valve spring sheet part from passing just above an exhaust port.
SOLUTION: This cylinder head of an internal combustion engine has two exhaust valves in one air cylinder and has exhaust side lubricating oil return passages 6 into which lubricating oil that has lubricated an exhaust valve spring sheet part 3 is led to flow. The exhaust side lubricating oil return passages 6 are formed in the upper part of an exhaust port 5 in an exhaust valve side part on a side opposite to an intake valve, and also arranged separately in each exhaust valve and extended from the exhaust valve side part to a mutually opposite side.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：为了通过避免润滑排气阀弹簧片部分的润滑油通过正好在排气口上方的方式来防止润滑油由于其温度上升而劣化。解决方案：内燃机的气缸盖在一个气缸中具有两个排气阀，并且具有排气侧润滑油返回通道6，润滑排气阀弹簧片部分3的润滑油被引导到其中。排气侧润滑油返回通路6形成在与进气门相反的一侧的排气阀侧部分的排气口5的上部，并且还分别布置在每个排气阀中并从排气阀侧部分到相对的一侧。

5. 发明专利

JP2000328908A WORKING FLUID SUPPLY SYSTEM FOR VARIABLE VALVE TIMING MECHANISM 失效
公开(公告)号：JP2000328908A
公开(公告)日：2000-11-28
申请号：JP13776799
申请日：1999-05-18
申请人： TOYOTA MOTOR CORP
发明人： MATSUDAIRA JUNICHI , HORI KOHEI , ENDO KUNIHIKO
IPC分类号： F01L1/34 , F01L1/04
摘要： PROBLEM TO BE SOLVED: To pressurize and fit a cam bearing having a recess portion in a part into a bearing portion of a journal portion of a camshaft and insert a head bolt into the recess portion by providing a flange at least on a side having the recess portion. SOLUTION: A recess portion 6, in which a head bolt 7 connecting a cylinder head 8 and a cylinder block 9 is inserted, is provided on a part of a bearing portion 5 of the cylinder head 8. Consequently, the cylinder head can be shortened only by the length equivalent to a diameter of a bolt head of the head bolt 7 or that of a washer below the bolt head. Therefore, degree of freedom in design can be increased and the engine weight can be reduced. Also, on a cam bearing 4 that is to be inserted between the outer periphery of a journal portion 3a and the bearing portion 5 of the cylinder head 8, a flange 4a is provided on the recess portion 6 side 13 and a flange 4b on the opposite side. As a result, rigidity of the cam bearing 4 is increased and deformation is lessened, thus preventing leakage of working fluid and reducing deterioration of response speed of a variable valve timing mechanism, etc.

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