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公开(公告)号：JP2012145198A
公开(公告)日：2012-08-02
申请号：JP2011005769
申请日：2011-01-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
Abstract: PROBLEM TO BE SOLVED: To stably carry an oil between a crank shaft and a main bearing to improve lubrication performance and startability.SOLUTION: A journal 20 of the crank shaft 18 is rotatably supported by the main bearing 22. The oil is supplied to a sliding surface between the journal 20 and the main bearing 22 through a lubricating oil passage 30 and an oil hole 40, and the oil is kept by an oil carrying mechanism 42. The oil carrying mechanism 42 includes an annular protrusion 44 provided on an inner peripheral surface of the main bearing 22 on both axial sides of the oil hole 40 and an annular recess 46 provided on an outer peripheral surface of the journal 20. Thus, the oil can be prevented from flowing out from the sliding surface while an engine 10 stops. Therefore, high lubrication performance can be secured from the beginning of the start when restarting the engine, and the startability can be improved by inhibiting friction.
Abstract translation: 要解决的问题：为了稳定地在曲柄轴和主轴承之间传送油，以提高润滑性能和起动性。 解决方案：曲柄轴18的轴颈20由主轴承22可旋转地支撑。油通过润滑油通道30和油孔40被供给到轴颈20和主轴承22之间的滑动表面 并且油由运油机构42保持。输油机构42包括在油孔40的两个轴向侧上设置在主轴承22的内周面上的环形突起44和设置在油孔40上的环形凹部46 轴颈20的外周面。因此，在发动机10停止时，可以防止油从滑动面流出。 因此，从重新起动发动机起始时起，可以确保高润滑性，并且可以通过抑制摩擦来提高起动性。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2010255460A
公开(公告)日：2010-11-11
申请号：JP2009103762
申请日：2009-04-22
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO , HAJIMA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To avoid occurrence of knocking in fail of a variable compression ratio system.
SOLUTION: The variable compression ratio system for an internal combustion engine includes: an eccentric shaft disposed between a crankcase and a cylinder block; and an actuator changing a relative position between the cylinder block and the crankcase by changing a rotational position of the eccentric shaft. The clutch mechanism is disposed to switch between connection and disconnection of a first area operated while being in contact with a cylinder block side member to/from a second area operated while being in contact with a crankcase side member, in the eccentric shaft.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：为了避免发生可变压缩比系统失效的爆震。 解决方案：内燃机的可变压缩比系统包括：设置在曲轴箱和气缸体之间的偏心轴; 以及通过改变所述偏心轴的旋转位置来改变所述气缸体和所述曲轴箱之间的相对位置的致动器。 离合器机构设置成在与偏心轴中与曲轴箱侧构件接触的第二区域中与气缸体侧构件接触的第一区域的连接和断开之间切换。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2009121332A
公开(公告)日：2009-06-04
申请号：JP2007296046
申请日：2007-11-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
CPC classification number: F02F1/243
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder head capable of accurately detecting the exhaust pressure in an exhaust path by using an exhaust pressure sensor and improved in reliability on the exhaust pressure sensor.
SOLUTION: This cylinder head 1 comprises a plurality of branch paths 11 provided as paths, in which exhaust gas of an internal combustion engine flows, and connected to combustion chambers 8 of a plurality of cylinders of the internal combustion engine, an exhaust path 10 having a collective path 13 formed by collecting the plurality of branch paths 11, a water jacket (coolant path) 20 provided as a path for coolant used to cool the internal combustion engine, and an exhaust pressure sensor 27 provided in the collective path.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种能够通过使用排气压力传感器精确地检测排气路径中的排气压力并提高排气压力传感器的可靠性的气缸盖。 解决方案：该气缸盖1包括多个分支路径11，该分支路径11设置为路径，内燃机的排气流动，并连接到内燃机的多个气缸的燃烧室8，排气 具有通过收集多个分支路径11形成的集合路径13的路径10，设置为用于冷却内燃机的冷却剂的路径的水套（冷却剂路径）20和设置在集合路径中的排气压力传感器27 。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009115058A
公开(公告)日：2009-05-28
申请号：JP2007292072
申请日：2007-11-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To promptly respond to an abnormality even when the abnormality occurs in a variable valve train in a condition, such as low rotation and low speed, which makes the operation of a hydraulic system difficult. SOLUTION: An internal combustion engine 10 has the variable valve train 68, a lash adjuster 80 and an adjuster movable mechanism 82. In the state where the variable valve train 68 is normal, the lash adjuster 80 is held in the normal position by the adjuster movable mechanism 82. When an abnormality of the variable valve train 68 is detected, the lash adjuster 80 is held in the retract position by the adjuster movable mechanism 82 to reduce projection dimension T of a plunger 80B compared to the normal state. Thus, when an abnormality is detected, lift amount of an intake valve 38 can be reduced regardless of engine speed and temperature state of the internal combustion engine 10. As a result, an interference between the intake valve 38 and a piston 16 can be securely prevented. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：即使在诸如低转速和低速的条件下在可变气门机构中发生异常，也使得液压系统的操作困难，可以及时响应异常。 解决方案：内燃机10具有可变气门机构68，间隙调节器80和调节器可动机构82.在可变气门机构68正常的状态下，间隙调节器80保持在正常位置 通过调节器可动机构82.当检测到可变气门机构68的异常时，间隙调节器80被调节器可移动机构82保持在缩回位置，以减小柱塞80B与正常状态相比的突出尺寸T. 因此，当检测到异常时，与内燃机10的发动机转速和温度状态无关地能够降低进气门38的升程量。结果，能够可靠地进入进气门38与活塞16之间的干涉 防止了 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2006125446A
公开(公告)日：2006-05-18
申请号：JP2004311460
申请日：2004-10-26
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
IPC: F16C3/10
Abstract: PROBLEM TO BE SOLVED: To form a weight reducing hole for effectively reducing a weight without depending on a manufacturing method with casting or forging.
SOLUTION: The hollow weight reducing hole 6 (6a, 6b) is provided in at least a pin journal portion 3, and a piston load supporting portion 7 (7a, 7b) is provided on the wall face of the weight reducing hole 6 (6a, 6b) inward of a connecting rod holding position on the pin journal portion 3 corresponding to a piston load inputting direction. At the journal portion 3, the journal portion 3, the weight reducing hole 6 (6a, 6b) and the piston load supporting portion 7 (7a, 7b) are each split in two to form a split structure.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：形成减重孔，用于有效地减轻重量，而不依赖于铸造或锻造的制造方法。 解决方案：中空减重孔6（6a，6b）设置在至少一个销轴颈部分3中，活塞负载支撑部分7（7a，7b）设置在减重孔的壁面上 6（6a，6b）对应于活塞负载输入方向的销轴颈部分3上的连杆保持位置的内侧。 在轴颈部3处，轴颈部3，减重孔6（6a，6b）和活塞负载支承部7（7a，7b）分别分成两部分，形成分体结构。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2006063914A
公开(公告)日：2006-03-09
申请号：JP2004248804
申请日：2004-08-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
IPC: F01M13/00
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine promoting ventilation of an inside of a crank case by quickly discharging blow-by gas.
SOLUTION: In the internal combustion engine 1 provided with at least one of a gear 10 or a rotary part 20 having roughness on roughly whole circumference on a crank shaft 8, at least one of a blow-by gas discharge opening 17 or a new air introducing opening 18 is provided at a position facing the gear or the rotary part of a crank case 4. Discharge of blow-by gas and introduction of new air is promoted by using air flow generated at a time of rotation of the gear or the rotary part to promote ventilation of the inside of the crank case.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种通过快速排出窜气来促进曲轴箱内部的通风的内燃机。 解决方案：在具有齿轮10或旋转部20中至少一个的内燃机1中，在曲轴8上的大致整个圆周上具有粗糙度，至少一个窜气排出口17或 在与曲轴箱4的齿轮或旋转部分相对的位置处设置有新的空气引入开口18.通过使用在齿轮的旋转时产生的气流来促进窜气的排出和新的空气的引入 或旋转部件，以促进曲轴箱内部的通风。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005120989A
公开(公告)日：2005-05-12
申请号：JP2003359801
申请日：2003-10-20
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a novel structure for suppressing flow resistance of cooling water while utilizing latent heat cooling for improving the efficiency of cooling a cylinder head.
SOLUTION: A latent heat cooling chamber 20 is formed to cover the outside (the upper face) of a heat source portion of a combustion chamber 4 or the like, and a cooling water channel 41 is formed for the latent heat cooling chamber 20 across a partition wall 43. The cooling water flows along the upper face of the partition wall 43 not along the outer face of the heat source portion. The shape of the partition wall 43 is independent of the complicated shape of the heat source portion. The existence of the latent heat cooling chamber 20 permits good cooling operation near the heat source portion, while proper shape design of the partition wall 43 suppresses flow resistance.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种用于抑制冷却水的流动阻力的新颖结构，同时利用潜热冷却来提高冷却气缸盖的效率。 解决方案：形成潜热冷却室20以覆盖燃烧室4等的热源部分的外部（上表面），并且为潜热冷却室形成冷却水通道41 20分隔壁43.冷却水沿分隔壁43的上表面不沿着热源部分的外表面流动。 隔壁43的形状与热源部的复杂形状无关。 潜热冷却室20的存在允许在热源部分附近进行良好的冷却操作，而分隔壁43的适当形状设计抑制流动阻力。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2002147432A
公开(公告)日：2002-05-22
申请号：JP2000348055
申请日：2000-11-15
Applicant: TOYOTA MOTOR CORP
Inventor： ITO TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a connecting rod capable of withstanding a specified load and reduced in weight. SOLUTION: This connecting rod comprises a piston side end part connected to a piston and crankshaft side end part provided with a crankshaft storage opening for storing a crankshaft. Two connecting rod portions divided at a crankshaft side end part along a plane inclined with respect to the longitudinal axis of the connecting rod are connected to each other on both sides of the crankshaft storage opening along the plane. The strength of a tightening part away from a piston side end part is reduced less than that of the tightening part near the piston side end part.
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公开(公告)号：JP2000257440A
公开(公告)日：2000-09-19
申请号：JP5541899
申请日：1999-03-03
Applicant: TOYOTA MOTOR CORP
Inventor： ITO TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a V-type engine with improved crankshaft robustness, capable of preventing explosions at irregular intervals. SOLUTION: This V-type engine has a plurality of cylinders 13, 14 which are disposed separated to left and right banks 11, 12. If N represents the number of cylinders, α represents the angle formed by the right bank and the left bank, and θ represents an angle obtained by dividing 720 degrees by N and subtracting αtherefrom, offset angles θ1 to θ3 between a pair of adjacent crank pins 19 from among a plurality of crank pins provided in a crankshaft 16 are set smaller than θ. Furthermore, a center O of the crankshaft 16 is disposed above or below with respect to an intersecting point p1 between an axis line a1 of the cylinder 13 and an axis line a2 of the cylinder 14.
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公开(公告)号：JPH0681613A
公开(公告)日：1994-03-22
申请号：JP23053392
申请日：1992-08-28
Applicant: TOYOTA MOTOR CORP
Inventor： ITO TOSHIO , NAKAE KOICHI , UMEHANA TOYOICHI
Abstract: PURPOSE:To scavenge the whole interior of a combustion chamber of a 2-cycle engine. CONSTITUTION:Three exhaust valves 9, 10, 11 are disposed in one side peripheral part of the inner wall surface 2a of a cylinder head and two feed valves 12, 13 are disposed in the other side peripheral part of the inner wall surface 3a of the cylinder head. Further, one feed valve 14 is disposed in the central part of the inner wall surface 3a of the cylinder head. Openings of the respective feed valves 12, 13, 14 formed in the exhaust valves 9, 10, 11 sides are covered with mask walls 16, 19, 22. The exhaust valve 11 is obliquely disposed to approach the inner wall surface 1a of the cylinder bore at the exhaust valve 11 side as the exhaust valve 11 located in the central part among three exhaust valves 9, 10, 11, and the exhaust valves 9, 10 are disposed obliquely to separate from the inner wall surface 1a of the cylinder bore as a pair of the remaining exhaust valves 9, 10 are opened.
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