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71. 发明专利

JP2007100549A Spark-ignition engine 有权
标题翻译：火花点火发动机
公开(公告)号：JP2007100549A
公开(公告)日：2007-04-19
申请号：JP2005289264
申请日：2005-09-30
申请人： Mazda Motor Corp , マツダ株式会社
发明人： YAMAKAWA MASANAO , SHISHIME KOUJI , NISHIMOTO TOSHIRO , YOUSO TAKASHI
IPC分类号： F02B23/08 , F02B31/00 , F02F3/26
CPC分类号： F02B2023/106 , Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a spark-ignition engine advantageous to the realization of the high compression ratio by preventing reduction of knocking resistance when uniformity of flame propagation is lost on the intake side and the exhaust side when a flame core generated by ignition flows to the exhaust side by maximally weakening a tumble remaining up to the latter half of a compression stroke.
SOLUTION: A main part of a combustion chamber inside space is formed of a first combustion space 14a of the spark plug periphery and a second combustion space 14b of a cylinder bore peripheral edge part. A first projection part 6b projecting higher than a piston crown surface on the opposite side for sandwiching the cylinder bore center in a plan view from the piston crown surface, is arranged on the fast side in an intake flow seed of a throat part of an intake port when viewed from the center of an intake port opening part in a plan view between the first combustion space 14a and the second combustion space 14b in a plan view of the piston crown surface 4, and is constituted so that a tumble flow generated from the throat part collides with the first projection part 6b.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种火花点火发动机，其有利于通过防止在产生火焰核心时在进气侧和排气侧损失火焰传播的均匀性时降低爆震阻力来实现高压缩比通过点燃流动到排气侧，最大程度地削弱直到压缩行程的后半部分的滚筒。解决方案：燃烧室内空间的主要部分由火花塞周边的第一燃烧空间14a和气缸孔周边部分的第二燃烧空间14b形成。在活塞冠表面的平面图中，将相对侧的活塞冠表面突出的第一突出部分6b布置在进气口部分的进气流种子中的快速侧上在活塞冠表面4的俯视图中，在第一燃烧空间14a和第二燃烧空间14b之间的平面图中，从进气口开口部的中心观察，并且构成为从喉部与第一突出部6b碰撞。版权所有（C）2007，JPO＆INPIT

72. 发明专利

JP2007077953A Spark ignition engine 有权
标题翻译：火花点火发动机
公开(公告)号：JP2007077953A
公开(公告)日：2007-03-29
申请号：JP2005270087
申请日：2005-09-16
申请人： Mazda Motor Corp , マツダ株式会社
发明人： SHISHIME KOUJI , NISHIMOTO TOSHIRO , HIRASHITA SHIGEYUKI , YAMAGUCHI NAOHIRO , SASAKI JUNZO
IPC分类号： F02P13/00 , F02B23/08 , F02B31/00 , F02B31/02 , F02P15/02 , F02P15/08
CPC分类号： Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a spark ignition engine for achieving a higher compression ratio in a practically effective manner by increasing a burning rate to greatly contribute to improving anti-knocking performance. SOLUTION: The spark ignition engine comprises a combustion chamber 14, and a burning rate control means 60 for forcibly changing the burning rate. The combustion chamber 14 is formed in such a shape that the increasing speed of a combustion mass rate is made relatively lower by temporarily slackening a heat generation increasing rate in a first main combustion period and that the increasing speed of the combustion mass rate is made relatively higher in a second main combustion period than in the first main combustion period. The burning rate control means 60 executes burning rate increasing control to forcibly increase the burning rate in a low speed operation region of the engine and to stop the burning rate increasing control in a high speed operation region of the engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种火花点火式发动机，以实际有效的方式通过提高燃烧速率来实现更高的压缩比，从而大大有助于提高防爆性能。火花点火发动机包括燃烧室14和用于强制改变燃烧速率的燃烧速率控制装置60。燃烧室14形成为通过在第一主燃烧期间暂时放松发热量增加率使燃烧质量比的增加速度相对较低，并且燃烧质量比的增加速度相对地增加在第二主燃烧期间比在第一主燃烧期间高。燃烧速度控制装置60执行燃料增加控制，以强制地增加发动机的低速运转区域的燃烧率，并停止发动机的高速运转区域的燃烧率增加控制。版权所有（C）2007，JPO＆INPIT

73. 发明专利

JP2007056701A Spark ignition four-cycle engine 有权
标题翻译：火花点火四循环发动机
公开(公告)号：JP2007056701A
公开(公告)日：2007-03-08
申请号：JP2005240169
申请日：2005-08-22
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMOTO TOSHIRO , ARAKI KEIJI , HIRASHITA SHIGEYUKI
IPC分类号： F02D13/02 , F01L13/00 , F02B11/00 , F02B17/00 , F02B23/00 , F02B31/02 , F02D41/02 , F02D41/04 , F02D45/00 , F02F1/42 , F02M25/07
CPC分类号： Y02T10/125 , Y02T10/146 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To develop a suitable compressed self-ignitability according to the operation load area of an engine.
SOLUTION: In the compressed self-igniting operation area, only intake ports 24a for flowing out an intake air in the direction to weak a swing flow EX
F generated by the re-opening operation of one exhaust port 24b is opened on the low load side, and an intake valve and an exhaust valve are controlled to open the intake ports 24a, 24a on the high load side. In the compressed self-igniting operation area, the mixing of fresh air with the burned gas is promoted, the temperature in the entire cylinder is rapidly raised, and a compressed self-ignition without residues is assured in a lean state on the low load side. A fresh air-fuel mixture is stratified in a deviated state around an ignition plug in a combustion chamber, and the assisting of ignition is also facilitated while preventing knocking from occurring on the high load side.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：根据发动机的操作载荷面积开发合适的压缩自燃性。解决方案：在压缩自燃操作区域中，仅有一个进气口24a用于使一个进气进入一个由一个重新打开操作产生的摆动流量EX F 排气口24b在低负荷侧打开，并且进气门和排气门被控制以打开高负载侧的进气口24a，24a。在压缩自燃操作区域中，促进新鲜空气与燃烧气体的混合，整个气缸内的温度迅速升高，在低负载侧的贫态保证没有残留物的压缩自点火。新鲜的空气燃料混合物以围绕燃烧室内的火花塞的偏离状态分层，并且也有助于点火辅助，同时防止在高负载侧发生爆震。版权所有（C）2007，JPO＆INPIT

74. 发明专利

JP2006161676A Start device for four cycle engine 有权
标题翻译：启动四周循环发动机
公开(公告)号：JP2006161676A
公开(公告)日：2006-06-22
申请号：JP2004354312
申请日：2004-12-07
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMOTO TOSHIRO , ARAKI KEIJI
IPC分类号： F02D17/00 , F01L1/08 , F02D13/02 , F02D41/06 , F02D45/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a start device for a four cycle engine reversibly reducing switching frequency of execution and stop of exhaust gas recirculation and improving re-startability. SOLUTION: This device is provided with a cam shaft 18 and a change over mechanism 17 enabling exhaust gas recirculation into a cylinder by valve reopen action reopening an exhaust valve in intake stroke in addition to open action of the exhaust valve in exhaust stroke, and a VVL control part 52 capable of switching execution and stop of the reopen valve action by the valve drive means. An engine automatic stop condition is established and engine speed at a time of stop of fuel supply is set higher than idling speed at a time of normal operation, the VVL control part 52 stops the valve reopen action in a middle of engine automatic stop action period after fuel supply stop, and restarts the engine after a predetermined time passes from a timing when a restart condition is satisfied at least after engine stop. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于四循环发动机的启动装置，其可逆地降低执行的开关频率并停止排气再循环并提高再启动性。解决方案：该装置设置有凸轮轴18和更换机构17，除了在排气冲程中的排气阀的打开动作之外，通过阀重新打开动作使排气再循环到进气冲程中的排气阀以及VVL控制部52，其能够切换执行并且通过阀驱动装置停止重新打开阀动作。发动机自动停机条件成立，燃料供给停止时的发动机转速设定为高于正常运转时的空转速度，VVL控制部52在发动机自动停止动作期间中停止重新开阀动作在燃料供给停止之后，至少在发动机停止后从满足重启条件的定时经过预定时间后重新起动发动机。版权所有（C）2006，JPO＆NCIPI

75. 发明专利

JP2005105937A Control device for spark ignition engine 有权
标题翻译：火花点火发动机控制装置
公开(公告)号：JP2005105937A
公开(公告)日：2005-04-21
申请号：JP2003339992
申请日：2003-09-30
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMOTO TOSHIRO , MATSUURA HIROKAZU , INATOMI HIROSHI , ARAKI KEIJI
IPC分类号： F01L13/00 , F01N3/24 , F02D13/02 , F02D21/08 , F02D41/04 , F02D41/14 , F02D43/00 , F02M35/10
摘要： PROBLEM TO BE SOLVED: To properly change over a gas distribution passage between an each-cylinder independent condition and a two-cylinder connected condition while preventing the degradation of emission performance and the generation of torque shock during transition to change-over of the gas distribution passage.
SOLUTION: An operation mode control means (an ECU 30) is provided for executing the control of a normal operation mode in the each-cylinder independent condition and the control of a special operation mode in the two-cylinder connected condition in which preceding cylinders 2A, 2D and following cylinders 2B, 2C are connected to each other. The gas distribution passage is changed over between the each-cylinder independent condition in the normal operation mode and the two-cylinder connected condition in the special operation mode in the state that a transient operation mode exists therebetween for combustion in the preceding cylinders 2A, 2D only with the air-fuel ratio in the preceding cylinders 2A, 2D as a theoretical air-fuel ratio or an approximately theoretical air-fuel ratio.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了适当地改变在气缸独立状态和双气缸连接状态之间的气体分配通道，同时防止在转换到转换期间排放性能的劣化和转矩冲击的产生气体分配通道。解决方案：提供一种操作模式控制装置（ECU30），用于在气缸独立状态下执行正常操作模式的控制和在两气缸连接状态下的特殊操作模式的控制，其中先前的气缸2A，2D和后续气缸2B，2C彼此连接。在正常运行模式中的气缸独立状态和特殊运行模式下的双缸连接状态之间，在其间存在用于先前气缸2A，2D中的燃烧的瞬态运转模式的状态下，将气体分配通路切换仅以先前气缸2A，2D中的空燃比为理论空燃比或近似理论空燃比。版权所有（C）2005，JPO＆NCIPI

76. 发明专利

JP2005090394A Controller for spark ignition type engine 有权
标题翻译：火花点火式发动机控制器
公开(公告)号：JP2005090394A
公开(公告)日：2005-04-07
申请号：JP2003326378
申请日：2003-09-18
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMOTO TOSHIRO , MATSUZAKI SATORU , ARAKI KEIJI , MAEDA HIROYUKI
IPC分类号： F02M25/07 , F01N3/24 , F02D21/08 , F02D41/04 , F02D41/12 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To properly switch a gas circulation path from each cylinder independent state into a two cylinder connection state while preventing reduction in emission performance and occurrence of torque shock at the switching transient time.
SOLUTION: This controller for the spark ignition type engine is provided with an operation mode control means ECU30 for controlling a usual operation mode in each cylinder independent state and controlling a special operation mode in the two cylinder connection state in which preceding cylinders 2A, 2D are connected with following cylinders 2B, 2C. When switching the gas circulation path from each cylinder independent state in the usual operation mode into the two cylinder connection state in the special operation mode, whether operation is shifted to an operation region in the fuel cut mode during a period of time set in advance or not is determined. When it is determined that operation is shifted to the operation region in the fuel cut mode during the period of time, the gas circulation path is switched at the time. When it is determined that operation is not shifted to the operation region in the fuel cut mode during the period of time, the gas circulation path is switched via a transient operation mode for burning fuel in only the following cylinders.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了将气缸循环路径从每个气缸独立状态切换到双气缸连接状态，同时防止在切换瞬时时间的排放性能的降低和扭矩冲击的发生。用于火花点火式发动机的该控制器设置有操作模式控制装置ECU30，用于控制每个气缸独立状态下的通常操作模式，并且控制两气缸连接状态下的特殊操作模式，其中先前气缸2A ，2D与以后的气缸2B，2C连接。当在特殊运行模式中将气体循环路径从通常运行模式的每个气缸独立状态切换到特殊运行模式下的两气缸连接状态时，在预先设定的时间段内是否将操作切换到燃料切断模式的操作区域，或者没有确定。当在一段时间内确定在燃料切断模式中操作转移到操作区域时，此时气体循环路径被切换。当在一段时间内确定在燃料切断模式中操作没有移动到操作区域时，仅通过以下气缸燃烧燃料的瞬时操作模式来切换气体循环路径。版权所有（C）2005，JPO＆NCIPI

77. 发明专利

JP2005054676A Spark ignition type engine 审中-公开
标题翻译：火花点火型发动机
公开(公告)号：JP2005054676A
公开(公告)日：2005-03-03
申请号：JP2003286306
申请日：2003-08-04
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMOTO TOSHIRO , HAYASHI YOSHINORI , MATSUURA HIROKAZU , YAMAUCHI TAKETOSHI
IPC分类号： F02B15/00 , F02B23/00 , F02B23/10 , F02B31/00 , F02B31/02 , F02D13/02 , F02D21/08 , F02D41/02 , F02D41/04 , F02D43/00 , F02F1/42 , F02M25/07
CPC分类号： Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To realize assuring of combustibility by assuring sufficiently an amount of charging of an intake air to a preceding cylinder in a two-cylinder connection state for introducing burned gas drawn from the preceding cylinder to the following cylinder.
SOLUTION: A spark ignition type engine includes an operation mode control means having a valve stop control mechanism control means for performing a control of a special operation mode for burning together with a newly supplied fuel in following cylinders 2B, 2C by burning by setting air fuel ratio of the preceding cylinders 2A, 2D as a lean air fuel ration larger than a theoretical air fuel ratio and introducing burned gas of a leak air fuel ratio from the preceding cylinders 2A, 2D to the following cylinders 2B, 2C. A fuel injection direction of an injector 9 provided in the preceding cylinders 2A, 2D is set near an electrode of an ignition plug, and an intake port 11 for introducing new gas to the preceding cylinders 2A, 2D is a tangential port having a small intake resistance.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过在从两个气缸连接状态向足够的进气量充电到前一个气缸的充气量来实现可燃性的确保，用于将从前一个气缸吸入的燃烧气体引入后续气缸。解决方案：火花点火式发动机包括操作模式控制装置，该操作模式控制装置具有阀停止控制机构控制装置，用于通过燃烧由后续气缸2B，2C中的新供应燃料进行燃烧的特殊操作模式的控制将前一个气缸2A，2D的空燃比设定为大于理论空燃比的稀薄空气燃料比，并将从前一个气缸2A，2D的燃尽气体引入后续气缸2B，2C。设置在先前气缸2A，2D中的喷射器9的燃料喷射方向设置在火花塞的电极附近，并且用于将新气体引入到先前气缸2A，2D的进气口11是具有小进气口的切向口抵抗性。版权所有（C）2005，JPO＆NCIPI

78. 发明专利

JP2005016428A Engine 有权
标题翻译：发动机
公开(公告)号：JP2005016428A
公开(公告)日：2005-01-20
申请号：JP2003182839
申请日：2003-06-26
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MATSUURA HIROKAZU , NISHIMOTO TOSHIRO , ASAUMI KOJI , SUMITA KOJI , MAEDA HIROYUKI
IPC分类号： F01N13/08 , F01N3/24 , F02B31/00 , F02B31/02 , F02D13/02 , F02D21/08 , F02D41/02 , F02D41/04 , F02D45/00 , F02F1/42 , F02M25/07 , F01N7/08
CPC分类号： Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To improve combustibility of lean exhaust-gas in a succeeding cylinder in an engine in which lean exhaust-gas in a preceding cylinder is burned again in the succeeding cylinder in order to eliminate a lean NOx catalyst.
SOLUTION: In the engine having an even number of cylinders, exhaust gas of the preceding cylinder on the exhaust stroke side is introduced into the succeeding cylinder on the intake stroke side so as to burn the exhaust gas again between a pair of cylinders having an overlap in the motion of exhaust and intake stokes. A port 17 for introducing the exhaust gas is provided as a helical port 17 in the succeeding cylinder. Consequently, a swirl can be caused in a combustion chamber 12 in the succeeding cylinder. Even when a sufficient distance in a straight line is not ensured in the exhaust-gas introducing passage, an intake flow is formed in the combustion chamber 12 of the succeeding cylinder, and the combustibility in the succeeding cylinder can be improved.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提高先前汽缸中的稀薄排气再次在后续汽缸中燃烧的发动机的后续汽缸中的贫燃料的燃烧性，以消除贫NOx催化剂。解决方案：在具有偶数个气缸的发动机中，排气冲程侧的先前气缸的废气在进气冲程侧被引入随后的气缸中，以便在一对气缸之间再次燃烧废气在排气和进气道的运动中有重叠。用于引入废气的端口17被设置为随后的气缸中的螺旋口17。因此，在随后的气缸中的燃烧室12中可能引起漩涡。即使在排气导入通道中没有确保直线上的足够的距离的情况下，也可以在随后的气缸的燃烧室12中形成进气流，能够提高后续气缸的燃烧性。版权所有（C）2005，JPO＆NCIPI

79. 发明专利

JP2005016359A Controller of spark ignition engine 有权
标题翻译：火花点火发动机控制器
公开(公告)号：JP2005016359A
公开(公告)日：2005-01-20
申请号：JP2003180274
申请日：2003-06-24
申请人： Mazda Motor Corp , マツダ株式会社
发明人： HITOMI MITSUO , ASAUMI KOJI , MAEDA HIROYUKI , NISHIMOTO TOSHIRO
IPC分类号： F02B37/00 , F02B1/12 , F02B11/00 , F02B37/12 , F02D9/02 , F02D21/04 , F02D23/02 , F02D41/02 , F02D41/04 , F02D41/36 , F02D43/00 , F02D45/00 , F02M25/07 , F02P5/15
CPC分类号： F02B1/12
摘要： PROBLEM TO BE SOLVED: To provide an engine in which fuel consumption is more effectively improved while maintaining exhaust purification performance. SOLUTION: In a partial load operating range of the engine, a fresh air introducing valve 18 is closed, and a directional control valve 25 is controlled to introduce all the burned gas exhausted from preceding cylinders 2A, 2D into an intercylinder passage side to make a two-cylinder connection state. A combustion is carried out with a lean air-fuel ratio in which the air-fuel ratio is larger than the theoretical air-fuel ratio in the preceding cylinders 2A, 2D. Fuel is supplied into the burned gas introduced from the preceding cylinders 2A, 2D into the following cylinders 2B, 2C to burn the following cylinders 2B, 2C. At the high load side range in the partial load operating range, the fresh air introducing valve 18 is opened to introduce both the burned gas and the fresh air into the following cylinders 2B, 2C, and fuel is supplied to perform the special operating mode to assist compression self ignition of the following cylinders 2B, 2C. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在保持排气净化性能的同时更有效地提高燃料消耗的发动机。解决方案：在发动机的部分负荷运行范围内，新鲜空气引入阀18关闭，并且控制方向控制阀25将从先前气缸2A，2D排出的所有燃烧气体引入到气缸内通道侧进行双缸连接状态。以空燃比大于前一缸2A，2D中的理论空燃比的稀空燃比进行燃烧。将燃料从先前的气缸2A，2D引入燃烧气体，供入后续的气缸2B，2C，以燃烧后续气缸2B，2C。在部分负荷工作范围的高负荷侧范围内，新鲜空气引入阀18打开，将燃烧气体和新鲜空气同时引入后续的气缸2B，2C，供给燃料以执行特殊的运行模式辅助以下缸2B，2C的压缩自点火。版权所有（C）2005，JPO＆NCIPI

80. 发明专利

JP2004124766A Valve system for engine 有权
公开(公告)号：JP2004124766A
公开(公告)日：2004-04-22
申请号：JP2002287984
申请日：2002-09-30
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MATSUURA HIROKAZU , ASAUMI KOJI , NISHIMOTO TOSHIRO , YAMAUCHI TAKETOSHI
IPC分类号： F01L1/14 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To prevent the eccentric wear by preventing an increase in the local surface pressure due to a fall of a tappet when driving a cam in a valve system, which is formed of a center tappet and side tappets on both sides and in which the side tappets and the center tappet abut on each other in a slide-contact surface in parallel with the axial direction of the cam in a direction crossing a cam shaft.
SOLUTION: Notch-like clearance parts 85a and 85b (85c and 85d) are formed in a valve side end of the side tappet 32 at a part facing to a slide-contact surface, which is provided in an end of the center tappet 31, to form the predetermined space between the end of the side tappet 31. With this structure, when the tappet 3 is tilted, an increase of the local surface pressure between the peripheral edge of the valve side end part of the side tappet 32 and the inner surface of a tappet guide hole 4 is restricted, and an increase in the local surface pressure between a lower end of the center tappet 31 and the inner surface of the tappet guide hole 4 is restricted to prevent the generation of eccentric wear.
COPYRIGHT: (C)2004,JPO

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