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1. 发明公开

EP1517017A1 Spark-ignition direct-injection engine 有权
标题翻译： FremdgezündeteBrennkraftmaschine mit Direkt-Einspritzung
公开(公告)号：EP1517017A1
公开(公告)日：2005-03-23
申请号：EP04022454.5
申请日：2004-09-21
申请人： Mazda Motor Corporation
发明人： Aoki, Osamu , Fujimoto, Hidefumi , Yamashita, Hiroyuki , Seto, Masatoshi , Yoshida, Hiroyuki , Yamakawa, Masahisa , Aiga, Shoichi , Matsuo, Yoshitomo , Ohta, Noriyuki , Nou, Yoshihisa , Kageyama, Akira
IPC分类号： F02B23/10
CPC分类号： F02B23/101 , F02B23/104 , F02B2023/103 , Y02T10/125
摘要： A spark-ignition direct-injection engine in which a fuel injector (18) injects fuel toward areas surrounding a spark plug (16) includes an ECU (50) serving as a fuel injection timing controller which sets a fuel injection point in a compression stroke when the engine is run by stratified charge combustion and in an intake stroke when the engine is run by homogeneous charge combustion. The fuel injector (18) has an electrode bottom-side spray hole of which axis is directed to an area immediately on the underside of an electrode of the spark plug (16) and a piston-side spray hole of which axis is directed to an area further on the underside of the area to which the axis of the electrode bottom-side spray hole is directed. The angle between the axes of the electrode bottom-side spray hole and the piston-side spray hole is larger than the spray angle of the fuel ejected from each of the two spray holes when the engine is run by the stratified charge combustion.
摘要翻译：一种燃料喷射器（18）向火花塞（16）周围的区域喷射燃料的火花点火直喷式发动机包括：作为燃料喷射正时控制器的ECU（50），该燃料喷射正时控制器将燃料喷射点设定在压缩冲程当发动机通过分层充气燃烧运行时，并且当发动机通过均匀充气燃烧运行时在进气冲程中。燃料喷射器（18）具有电极底侧喷射孔，该电极底侧喷射孔的轴线指向火花塞（16）的电极的下侧上的区域，并且活塞侧喷射孔的轴线指向在电极底侧喷射孔的轴线所朝向的区域的下侧。当发动机通过分层充气燃烧运行时，电极底侧喷射孔的轴线和活塞侧喷射孔之间的角度大于从两个喷射孔中的每一个喷出的燃料的喷射角度。

2. 发明授权

EP1770256B1 Direct injection spark ignition engine and method of operating it 有权
标题翻译：直喷式汽油发动机和Vefahren操作
公开(公告)号：EP1770256B1
公开(公告)日：2011-11-09
申请号：EP06020332.0
申请日：2006-09-27
申请人： Mazda Motor Corporation
发明人： Yamashita, Hiroyuki , Seto, Masatoshi , Yoshida, Hiroyuki
IPC分类号： F02B17/00
CPC分类号： F02B17/005 , F02B23/104 , F02B23/105 , F02B31/00 , F02B2023/103 , F02B2023/106 , F02D41/3029 , F02D41/402 , Y02T10/125 , Y02T10/146 , Y02T10/44

3. 发明公开

EP1770256A3 Direct injection spark ignition engine and method of operating it 有权
标题翻译：直喷式汽油发动机和Vefahren操作
公开(公告)号：EP1770256A3
公开(公告)日：2008-12-10
申请号：EP06020332.0
申请日：2006-09-27
申请人： Mazda Motor Corporation
发明人： Yamashita, Hiroyuki , Seto, Masatoshi , Yoshida, Hiroyuki
IPC分类号： F02B17/00
CPC分类号： F02B17/005 , F02B23/104 , F02B23/105 , F02B31/00 , F02B2023/103 , F02B2023/106 , F02D41/3029 , F02D41/402 , Y02T10/125 , Y02T10/146 , Y02T10/44
摘要： A direct injection spark ignition engine comprises a cylinder, a piston which is reciprocally movably arranged in the cylinder and defines with the cylinder a combustion chamber, a fuel injector arranged at one side of a center axis of the cylinder for directly injecting fuel into the combustion chamber, and a smoothly continuous lowered recess formed on a top surface of the piston surface for receiving at least part of fuel injected from the injector. The recess has a first cross section along a first plane including the cylinder center axis and a nozzle end of the injector. The first cross section has first and second lower contours substantially of arc shape with its center above the recess. The first and second lower contours are smoothly connected with each other through a lowest point of the first cross section. The first lower contour is located at the one side of the cylinder center axis. The second lower contour is located at the other side of the cylinder center axis. The first contour has a larger radius than a radius of the second contour. Accordingly, the fuel spray having greater movement energy may impinge the recess at a regulated impinging angle. Consequently, this configuration may properly guide the fuel spray, prevent the wet fuel spot anywhere within the combustion chamber, and create properly stratified air fuel mixture.

4. 发明授权

EP1517017B1 Spark-ignition direct-injection engine 有权
标题翻译：与直接燃料喷射的火花点火式内燃机
公开(公告)号：EP1517017B1
公开(公告)日：2008-04-16
申请号：EP04022454.5
申请日：2004-09-21
申请人： Mazda Motor Corporation
发明人： Aoki, Osamu , Fujimoto, Hidefumi , Yamashita, Hiroyuki , Seto, Masatoshi , Yoshida, Hiroyuki , Yamakawa, Masahisa , Aiga, Shoichi , Matsuo, Yoshitomo , Ohta, Noriyuki , Nou, Yoshihisa , Kageyama, Akira
IPC分类号： F02B23/10
CPC分类号： F02B23/101 , F02B23/104 , F02B2023/103 , Y02T10/125

5. 发明公开

EP1245819A2 Direct-injection spark-ignition engine 审中-公开
标题翻译：直喷的火花点火内燃机
公开(公告)号：EP1245819A2
公开(公告)日：2002-10-02
申请号：EP02007074.4
申请日：2002-03-27
申请人： Mazda Motor Corporation
发明人： Saito, Fumihiko , Ohta, Noriyuki , Yamashita, Hiroyuki , Marubara, Masashi , Seto, Masatoshi , Yoshida, Hiroyuki , Yasuoka, Takehiko , Matsumoto, Masakazu
IPC分类号： F02F1/42 , F02B31/00
CPC分类号： F02B17/005 , F02B23/104 , F02B31/085 , F02B2023/106 , F02B2075/125 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A fuel spray and a tumble collide with each other from approximately opposite directions in a cavity formed in a piston head so that a combustible mixture stays around a spark plug provided at an upper central part of a combustion chamber for an extended period of time. An upper opening of the cavity is elongated to both the left and right sides of a cylinder axis. The distance between a ceiling of the combustion chamber and a bottom surface of the cavity as measured parallel to the cylinder axis is smaller on the right side of the cylinder axis than on the left side thereof and largest at least at a point where the cylinder axis crosses the bottom surface of the cavity, and a portion of the cavity to the left of the cylinder axis has a larger volumetric capacity than a portion of the cavity to the right of the cylinder axis, whereby a strong tumble is maintained up to a fuel injection point, allowing satisfactory mixture strification.

6. 发明授权

EP2264303B1 Control method and device of engine and corresponding engine 有权
标题翻译：控制方法和电动机装置和相应的电机
公开(公告)号：EP2264303B1
公开(公告)日：2015-07-08
申请号：EP10004975.8
申请日：2010-05-11
申请人： Mazda Motor Corporation
发明人： Yamashita, Hiroyuki , Seto, Masatoshi , Kawai, Yusuke
IPC分类号： F02D41/30 , F02D41/40
CPC分类号： F02D41/3035 , F02D13/0207 , F02D13/0265 , F02D41/402 , Y02T10/128 , Y02T10/18 , Y02T10/44

7. 发明公开

EP2264303A1 Control method and device of engine and corresponding engine 有权
标题翻译： Steuerungsverfahren und Motorvorrichtung und entsprechender Motor
公开(公告)号：EP2264303A1
公开(公告)日：2010-12-22
申请号：EP10004975.8
申请日：2010-05-11
申请人： Mazda Motor Corporation
发明人： Yamashita, Hiroyuki , Seto, Masatoshi , Kawai, Yusuke
IPC分类号： F02D41/30 , F02D41/40
CPC分类号： F02D41/3035 , F02D13/0207 , F02D13/0265 , F02D41/402 , Y02T10/128 , Y02T10/18 , Y02T10/44
摘要： When it is determined that an engine operating condition is in a high-engine load HCCl range (A2) where an engine load is higher than a specified load X1 within a HCCl range A where a compression self combustion is performed, an after-TDC injection F2s is executed at a point T1 when an internal pressure of a combustion chamber drops below a specified pressure Y after the top dead center of an exhaust stroke during a minus valve overlap period NVO during which intake and exhaust valves 11, 12 are both closed. Then, a main injection F2m as a main injection is executed. Accordingly, any improper detonation or deterioration of NOx emission which may be caused by the compression self-ignition combustion in the range where the engine load is relatively high can be prevented.
摘要翻译：当确定发动机工作状态处于发动机负荷高于执行压缩自燃的HCCl范围A内的指定负荷X1的高发动机负荷HCCl范围（A2）时，后TDC注入在排气门11,12都关闭的负气门重叠期间NV0期间，当燃烧室的内部压力下降到排气行程的上止点之后的规定压力Y以下时，在点T1执行F2。然后，执行作为主喷射的主喷射F2m。因此，可以防止在发动机负荷相对较高的范围内由压缩自点火燃烧引起的任何不适当的爆炸或NOx排放的恶化。

8. 发明公开

EP1770256A2 Direct injection spark ignition engine and method of operating it 有权
标题翻译： Direkteinspritzungsottobrennkraftmaschine und Vefahren zum Betrieb
公开(公告)号：EP1770256A2
公开(公告)日：2007-04-04
申请号：EP06020332.0
申请日：2006-09-27
申请人： Mazda Motor Corporation
发明人： Yamashita, Hiroyuki , Seto, Masatoshi , Yoshida, Hiroyuki
IPC分类号： F02B17/00
CPC分类号： F02B17/005 , F02B23/104 , F02B23/105 , F02B31/00 , F02B2023/103 , F02B2023/106 , F02D41/3029 , F02D41/402 , Y02T10/125 , Y02T10/146 , Y02T10/44
摘要： A direct injection spark ignition engine comprises a cylinder, a piston which is reciprocally movably arranged in the cylinder and defines with the cylinder a combustion chamber, a fuel injector arranged at one side of a center axis of the cylinder for directly injecting fuel into the combustion chamber, and a smoothly continuous lowered recess formed on a top surface of the piston surface for receiving at least part of fuel injected from the injector. The recess has a first cross section along a first plane including the cylinder center axis and a nozzle end of the injector. The first cross section has first and second lower contours substantially of arc shape with its center above the recess. The first and second lower contours are smoothly connected with each other through a lowest point of the first cross section. The first lower contour is located at the one side of the cylinder center axis. The second lower contour is located at the other side of the cylinder center axis. The first contour has a larger radius than a radius of the second contour. Accordingly, the fuel spray having greater movement energy may impinge the recess at a regulated impinging angle. Consequently, this configuration may properly guide the fuel spray, prevent the wet fuel spot anywhere within the combustion chamber, and create properly stratified air fuel mixture.
摘要翻译：直喷式火花点火发动机包括气缸，活塞，其可往复运动地布置在气缸中并且与气缸一起限定燃烧室，燃料喷射器布置在气缸的中心轴线的一侧，用于将燃料直接喷射到燃烧以及形成在活塞表面的顶表面上的平滑连续的降低的凹部，用于接收从喷射器喷射的燃料的至少一部分。所述凹部沿着包括所述气缸中心轴线和所述喷射器的喷嘴端的第一平面具有第一横截面。第一横截面具有基本上具有圆弧形状的第一和第二下部轮廓，其中心在凹部上方。第一和第二下部轮廓通过第一横截面的最低点彼此平滑地连接。第一个下轮廓位于气缸中心轴的一侧。第二个下轮廓位于气缸中心轴的另一侧。第一轮廓具有比第二轮廓的半径更大的半径。因此，具有较大移动能量的燃料喷雾可以以稳定的碰撞角度撞击凹部。因此，这种构造可以适当地引导燃料喷雾，防止燃烧室内任何地方的湿燃料点，并且产生适当分层的空气燃料混合物。

9. 发明公开

EP1245819A3 Direct-injection spark-ignition engine 审中-公开
标题翻译： FremdgezündeteBrennkraftmaschine mit direkter Einspritzung
公开(公告)号：EP1245819A3
公开(公告)日：2003-06-04
申请号：EP02007074.4
申请日：2002-03-27
申请人： Mazda Motor Corporation
发明人： Saito, Fumihiko , Ohta, Noriyuki , Yamashita, Hiroyuki , Marubara, Masashi , Seto, Masatoshi , Yoshida, Hiroyuki , Yasuoka, Takehiko , Matsumoto, Masakazu
IPC分类号： F02F1/42 , F02B31/00
CPC分类号： F02B17/005 , F02B23/104 , F02B31/085 , F02B2023/106 , F02B2075/125 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A fuel spray and a tumble collide with each other from approximately opposite directions in a cavity formed in a piston head so that a combustible mixture stays around a spark plug provided at an upper central part of a combustion chamber for an extended period of time. An upper opening of the cavity is elongated to both the left and right sides of a cylinder axis. The distance between a ceiling of the combustion chamber and a bottom surface of the cavity as measured parallel to the cylinder axis is smaller on the right side of the cylinder axis than on the left side thereof and largest at least at a point where the cylinder axis crosses the bottom surface of the cavity, and a portion of the cavity to the left of the cylinder axis has a larger volumetric capacity than a portion of the cavity to the right of the cylinder axis, whereby a strong tumble is maintained up to a fuel injection point, allowing satisfactory mixture strification.
摘要翻译：燃料喷雾和滚筒从形成在活塞头中的空腔中的大致相反的方向相互碰撞，使得可燃混合物长时间地停留在设置在燃烧室的上部中心的火花塞周围。空腔的上部开口沿圆柱体轴线的左侧和右侧伸长。燃烧室的天花板和平行于气缸轴线测量的空腔的底面之间的距离在气缸轴线的右侧比在其左侧更小，并且至少在气缸轴线穿过腔的底表面，并且腔的左侧的腔的一部分具有比气缸轴线右侧的腔的一部分更大的体积容量，由此强烈的翻滚被维持到燃料注射点，允许令人满意的混合物搅拌。

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