公开(公告)号：US20180216592A1

公开(公告)日：2018-08-02

申请号：US15882203

申请日：2018-01-29

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiroyuki SAKAI

IPC分类号： F02M61/16 ,  F02M67/12

CPC分类号： F02M61/162 ,  F02M67/12 ,  F02M2200/09 ,  F02M2200/242 ,  F02M2200/247 ,  F02M2200/248 ,  Y02T10/125 ,  Y02T10/36

摘要： An internal combustion engine comprises a fuel injector 31, a spark plug 16, a piston 14 having a cavity 91, a swirl control device 95, and a control system 70. The cavity is formed so as to change in distance from the fuel injector to a side wall surface of the cavity, in the circumferential direction. The system performs ignition assist control for successively performing injections of main fuel and ignition assist fuel, makes an air-fuel mixture formed by the ignition assist fuel burn by flame propagation by the spark plug, and makes the remaining fuel burn by pre-mix compression self-ignition. The system controls the swirl control device during the ignition assist control so that when the engine load is high, the fuel sprayed heads toward parts of the side wall surface which are short in distances from the fuel injector.

公开(公告)号：US5988142A

公开(公告)日：1999-11-23

申请号：US995484

申请日：1997-12-22

申请人： Kenneth H. Klopfer

发明人： Kenneth H. Klopfer

IPC分类号： F02M47/02 ,  F02M65/00 ,  F02M37/04 ,  F02M51/00

CPC分类号： F02M47/027 ,  F02M57/005 ,  F02M65/003 ,  F02M65/005 ,  F02M2200/242 ,  F02M2200/247

摘要： A fuel injector employs at least one sensing device for sensing material deformations occurring in the injector components during usage to thereby monitor injector performance. The sensing device is preferably at least one of the many piezoelectric sensors available and is advantageously affixed within a cylinder of an injector to detect deformations of the injector cylinder within the needle valve/power piston column of an injector to detect deformations of the column which occurs when the high-pressure fuel in the control chamber is suddenly converted pressure and vice versa. Whereas the sensing devices of the invention can be placed at a variety of locations, they are advantageously arranged to detect material deformations within the injector cylinder or valve/piston column where such deformations are appreciably large during injector usage. Preferably, injectors of the invention are compatible with microprocessor-based fuel injection control systems of the type described above to maintain near-ideal control over the injector.

摘要翻译： 燃料喷射器使用至少一个感测装置来感测在使用期间在喷射器部件中发生的材料变形，从而监测喷射器性能。 感测装置优选地是许多可用的压电传感器中的至少一个，并且有利地固定在喷射器的气缸内，以检测喷射器在针阀/动力活塞柱内的变形，以检测发生的柱的变形 当控制室中的高压燃料突然转换压力，反之亦然。 尽管本发明的感测装置可以放置在各种位置，但它们有利地布置成检测喷射器气缸或阀/活塞柱内的材料变形，其中在喷射器使用期间这种变形明显较大。 优选地，本发明的喷射器与上述类型的基于微处理器的燃料喷射控制系统兼容，以保持对喷射器的近似理想的控制。

公开(公告)号：US20180017369A1

公开(公告)日：2018-01-18

申请号：US15546789

申请日：2016-01-28

申请人： MELEXIS TECHNOLOGIES NV ,  K. K. MELEXIS JAPAN TECHNICAL RESEARCH CENTER

发明人： Takumi YOSHIYA

IPC分类号： G01B7/02

CPC分类号： G01B7/023 ,  F02M51/0653 ,  F02M57/005 ,  F02M65/00 ,  F02M65/005 ,  F02M2200/242 ,  F02M2200/245 ,  G01B7/004

摘要： To provide a displacement detection device that detects a displacement of a measuring object housed in a casing without changing the design of the casing or while suppressing the design change of the casing.A displacement detection device includes a pair of magnets arranged outside an injector body housing a needle with a space between the magnets and forming a magnetic field in the space, a soft magnetic material connected to the needle inside the injector body and displaced in accordance with the displacement of the needle and disposed in the magnetic field formed by the pair of magnets, and a sensor disposed outside the injector body and in the magnetic field formed by the pair of magnets, and detecting a change in magnetic flux density in accordance with the displacement of the soft magnetic material.

公开(公告)号：US20110264356A1

公开(公告)日：2011-10-27

申请号：US12999953

申请日：2010-03-31

申请人： Shingo Korenaga ,  Teruaki Haibara ,  Shigeki Miyashita

发明人： Shingo Korenaga ,  Teruaki Haibara ,  Shigeki Miyashita

IPC分类号： F02D41/30

CPC分类号： F02D41/40 ,  F01N3/0256 ,  F02D35/02 ,  F02D2041/389 ,  F02D2200/063 ,  F02M51/061 ,  F02M57/005 ,  F02M2200/242 ,  Y02T10/44

摘要： The present invention has an object to make abnormal combustion of an internal combustion engine detectable by simple means at low cost. For this purpose, an abnormal combustion detecting device provided by the present invention uses a direct injection injector as means for detecting abnormal combustion. In the direct injection injector relating to the abnormal combustion detecting device, a sack chamber is provided at a tip end of a nozzle body, and a nozzle hole is formed to cause the sack chamber and a combustion chamber to communicate with each other. A needle is housed inside the nozzle body, and the sack chamber is opened and closed by the needle, whereby a fuel is directly injected into the combustion chamber. The abnormal combustion detecting device detects lift of the needle from a closing position by, for example, a sensor, and determines that abnormal combustion occurs in the combustion chamber by the fact that lift of the needle is detected at a non-operational time of the direct injection injector.

摘要翻译： 本发明的目的是通过简单的手段低成本地检测内燃机的异常燃烧。 为此，本发明提供的异常燃烧检测装置使用直接喷射喷射器作为检测异常燃烧的装置。 在与异常燃烧检测装置相关的直接喷射喷射器中，在喷嘴体的前端设有袋室，形成喷嘴孔，使袋室和燃烧室相互连通。 针头容纳在喷嘴体内，袋体由针打开和关闭，燃料直接喷入燃烧室。 异常燃烧检测装置通过例如传感器来检测针从关闭位置的升力，并且通过以下事实来确定在燃烧室中发生异常燃烧，即在所述燃烧室的非操作时间检测到针的提升 直喷式注射器。