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. 发明授权

US10865731B2 Fuel injection control system and fuel injection control method for diesel engine 有权
公开(公告)号：US10865731B2
公开(公告)日：2020-12-15
申请号：US16443738
申请日：2019-06-17
申请人： Mazda Motor Corporation
发明人： Naotoshi Shirahashi , Tunehiro Mori , Kiyoaki Iwata , Takeshi Matsubara , Sangkyu Kim
IPC分类号： F02D41/40 , F02B23/06 , F02F3/26
CPC分类号： F02D41/403 , F02B23/0693 , F02D41/401 , F02F3/26
摘要： A fuel injection control device causes an injector to execute main injection or pilot injection toward a joint portion, and low penetration injection to inject fuel at timing earlier than the pilot injection in a PILOT region or at timing later than the main injection in an AFTER region. The fuel injection control device causes the low penetration injection to be executed to inject the fuel only in a radial central region of a combustion chamber.

2. 发明授权

US09739232B2 Igniting a fuel-air mixture in a combustion chamber of a diesel engine 有权
公开(公告)号：US09739232B2
公开(公告)日：2017-08-22
申请号：US14351568
申请日：2012-10-15
申请人： Vladimir Borissovskiy
发明人： Vladimir Borissovskiy
IPC分类号： F02F1/24 , F02P13/00 , F02B43/10 , F02B23/06 , F02P19/02
CPC分类号： F02F1/242 , F02B23/0633 , F02B23/0663 , F02B23/0693 , F02B43/10 , F02F1/24 , F02P13/00 , F02P19/02 , Y02T10/125 , Y02T10/32
摘要： Combustion chamber of a diesel engine, the combustion chamber comprising: a piston having a piston bottom surface and a cylinder head having a cylinder head surface the combustion chamber having a combustion chamber axis, wherein one of said piston bottom surface and said cylinder head surface includes at least one depression and an ignition element is disposed in said combustion chamber and extends along said combustion chamber axis, said ignition element is configured to cause ignition along a longitudinal route of said combustion chamber axis.

3. 发明申请

US20170114730A1 METHOD OF INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL-COMBUSTION ENGINE RUNNING IN SINGLE-FUEL OR MULTI-FUEL MODE 审中-公开
公开(公告)号：US20170114730A1
公开(公告)日：2017-04-27
申请号：US15301339
申请日：2015-03-19
申请人： IFP Energies nouvelles
发明人： Olivier LAGET , Stéphane RICHARD , Lionel MARTINEZ
IPC分类号： F02D19/06 , F02D41/00 , F02D19/10 , F02B23/06 , F02B43/10
CPC分类号： F02D19/0689 , F02B23/0651 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B43/10 , F02D19/0647 , F02D19/0652 , F02D19/0655 , F02D19/0692 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02M61/182 , Y02T10/125 , Y02T10/36
摘要： The present invention is a fuel injection method for a compression-ignition internal-combustion engine running in single-fuel or multi-fuel mode. The engine has at least a cylinder (10), a piston (16) sliding in the cylinder, a combustion chamber (34) comprising two mixing zones (Z1, Z2) which are defined on one side by upper face of the piston comprising a projection extending in the direction of the cylinder head and located in a center of a concave bowl (48), a cylinder head (12) carrying fuel injection (30) projects liquid fuel (Fuel1) in at least two fuel jet sheets (36, 38) with different sheet angles (A1, A2), and intake (24, 26, 28) for an oxidizer and burnt gas exhaust (18, 20, 22).The method, in a single-fuel mode, injects liquid fuel (Fuel1) into lower zone (Z1) and/or upper zone (Z2) of the combustion chamber and, in a multi-fuel mode, provides in the chamber mixing of an oxidizer with another fuel (Fuel2) and of injection of liquid fuel (Fuel1) into lower zone (Z1) or both zones (Z1, Z2) of the combustion chamber.

4. 发明授权

US09238996B2 Piston having combustion bowl shaped to balance combustion efficiency and emission properties 有权
标题翻译：具有燃烧碗形状以平衡燃烧效率和排放性能的活塞
公开(公告)号：US09238996B2
公开(公告)日：2016-01-19
申请号：US14600640
申请日：2015-01-20
申请人： Caterpillar Inc.
发明人： William L. Easley , David A. Pierpont , Karthikeyan C. Venkatasubramaniam , John P. Timmons
IPC分类号： F02B23/06 , F02F3/26 , F02D21/08 , F02F3/28 , F02M25/07
CPC分类号： F02B23/0624 , F02B23/0621 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B2275/14 , F02D21/08 , F02F3/28 , F02M26/23 , Y02T10/123 , Y02T10/125
摘要： A piston for an internal combustion engine includes a piston body having an outer cylindrical surface defining a longitudinal piston axis, a combustion face defining a compound combustion bowl, and a compound rim extending radially outward from the compound combustion bowl to the outer cylindrical surface. The compound combustion bowl includes a convex inner bowl surface defining a conical projection and a concave outer bowl surface. The compound rim includes a flat outer rim surface adjoining the outer cylindrical surface, and a convex inner rim surface adjoining the compound combustion bowl. The convex inner bowl surface transitions smoothly to the concave outer bowl surface, and the convex inner rim surface transitions abruptly to the concave outer bowl surface at an edge of the compound combustion bowl.
摘要翻译：一种用于内燃机的活塞包括活塞体，其具有限定纵向活塞轴线的外圆柱形表面，限定复合燃烧碗的燃烧面和从复合燃烧碗径向向外延伸到外圆柱形表面的复合轮缘。复合燃烧碗包括限定锥形突起和凹入的外碗表面的凸形内碗表面。复合边缘包括邻接外圆柱形表面的平坦外边缘表面和邻接复合燃烧碗的凸形内边缘表面。凸形内碗表面平滑地转移到凹形外碗表面，并且凸形内边缘表面在复合燃烧碗的边缘处突然转变到凹形外碗表面。

5. 发明申请

US20150128899A1 Piston Having Combustion Bowl Shaped to Balance Combustion Efficiency and Emission Properties 有权
标题翻译：具有燃烧碗的活塞平衡燃烧效率和排放属性
公开(公告)号：US20150128899A1
公开(公告)日：2015-05-14
申请号：US14600640
申请日：2015-01-20
申请人： Caterpillar Inc.
发明人： William L. Easley , David A. Pierpont , Karthikeyan C. Venkatasubramaniam , John P. Timmons
IPC分类号： F02B23/06 , F02F3/28
CPC分类号： F02B23/0624 , F02B23/0621 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B2275/14 , F02D21/08 , F02F3/28 , F02M26/23 , Y02T10/123 , Y02T10/125
摘要： A piston for an internal combustion engine includes a piston body having an outer cylindrical surface defining a longitudinal piston axis, a combustion face defining a compound combustion bowl, and a compound rim extending radially outward from the compound combustion bowl to the outer cylindrical surface. The compound combustion bowl includes a convex inner bowl surface defining a conical projection and a concave outer bowl surface. The compound rim includes a flat outer rim surface adjoining the outer cylindrical surface, and a convex inner rim surface adjoining the compound combustion bowl. The convex inner bowl surface transitions smoothly to the concave outer bowl surface, and the convex inner rim surface transitions abruptly to the concave outer bowl surface at an edge of the compound combustion bowl.
摘要翻译：一种用于内燃机的活塞包括活塞体，其具有限定纵向活塞轴线的外圆柱形表面，限定复合燃烧碗的燃烧面和从复合燃烧碗径向向外延伸到外圆柱形表面的复合轮缘。复合燃烧碗包括限定锥形突起和凹入的外碗表面的凸形内碗表面。复合边缘包括邻接外圆柱形表面的平坦外边缘表面和邻接复合燃烧碗的凸形内边缘表面。凸形内碗表面平滑地转移到凹形外碗表面，并且凸形内边缘表面在复合燃烧碗的边缘处突然转变到凹形外碗表面。

6. 发明申请

US20140331957A1 COMBUSTION CHAMBER STRUCTURE FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机用燃烧室结构
公开(公告)号：US20140331957A1
公开(公告)日：2014-11-13
申请号：US14365170
申请日：2011-12-16
申请人： Kentaro Nishida , Hiroshi Oyagi
发明人： Kentaro Nishida , Hiroshi Oyagi
IPC分类号： F02F1/00
CPC分类号： F02F1/00 , F02B23/0621 , F02B23/0624 , F02B23/069 , F02B23/0693 , F02B23/0696 , Y02T10/125
摘要： A combustion chamber structure for an internal combustion engine includes, in a piston top part, a concave portion formed eccentrically with respect to a cylinder center axis, and a tapered portion that connects an upper end face of the piston top part and a side face of the concave portion. The tapered portion is formed so that a tapered portion volume (volume of a space formed between the tapered portion and an upper wall surface of the combustion chamber) in a first portion of the piston top part is greater than a tapered portion volume in a second portion that is nearer than the first portion to an eccentric direction of the concave portion from the cylinder center axis.
摘要翻译：用于内燃机的燃烧室结构在活塞顶部包括相对于气缸中心轴线偏心地形成的凹部，以及将活塞顶部的上端面和凹部。锥形部分形成为使活塞顶部的第一部分中的锥形部分体积（在锥形部分和燃烧室的上壁表面之间形成的空间的体积）大于第二部分中的锥形部分体积该部分比从缸体中心轴线到凹部的偏心方向更靠近第一部分。

7. 发明授权

US08677970B2 Piston for internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：US08677970B2
公开(公告)日：2014-03-25
申请号：US13422992
申请日：2012-03-16
申请人： Rishikesh Venugopal , Donald W. Stanton , Bhargav Ranganath , Thomas Geyer
发明人： Rishikesh Venugopal , Donald W. Stanton , Bhargav Ranganath , Thomas Geyer
IPC分类号： F02F3/00
CPC分类号： F02B23/0669 , F02B23/0651 , F02B23/0693 , F02B23/0696 , F02B2275/14 , Y02T10/125
摘要： A piston and an engine are provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of combustion chamber features. More particularly, configuration parameters for a piston crown and a piston bowl located within the piston crown are provided. The piston bowl configuration results in a combustion process that yields decreased heat transfer to a cylinder head of the internal combustion engine as well as reduced NOx emissions.
摘要翻译：提供了一种活塞和发动机，其包括各种精确的配置参数，包括燃烧室特征的尺寸，形状和/或相对定位。更具体地，提供了位于活塞冠内的活塞冠和活塞碗的配置参数。活塞碗结构导致燃烧过程，其产生对内燃机的气缸盖的热传递减少以及减少的NOx排放。

8. 发明授权

US08539928B2 Piston assembly and connecting rod having a profiled wrist pin bore therefor 有权
标题翻译：活塞组件和连杆具有成型的手腕销孔
公开(公告)号：US08539928B2
公开(公告)日：2013-09-24
申请号：US12330932
申请日：2008-12-09
申请人： Roberto Bueno Nigro , Kai Wang
发明人： Roberto Bueno Nigro , Kai Wang
IPC分类号： F02B75/32
CPC分类号： F02F3/00 , F02B23/0672 , F02B23/0693 , F16C9/04 , F16C23/041 , F16C33/10 , F16J1/16 , Y02T10/125
摘要： A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wrist pin bore has a wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a circumferential direction of the wrist pin bore on laterally opposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform lubrication flow across the interface region between the wrist pin bore and the wrist pin extending therethrough.
摘要翻译：提供一种活塞组件及其连接杆。连杆具有延伸到端部的细长主体以可操作地附接到活塞。该端部具有在主体的相对侧之间延伸的腕销孔。腕针孔具有在两侧之间延伸的波状轮廓。波浪形轮廓具有至少一个凹形表面，其具有沿着腕针孔的圆周方向延伸的谷部，并且凸起表面具有沿着在山谷的横向相对侧上的腕针孔的圆周方向延伸的峰部。峰和谷合作形成平滑的载荷梯度，并且穿过腕针孔和延伸穿过其的腕针之间的界面区域的均匀润滑流。

9. 发明授权

US08459229B2 Piston bowl with spray jet targets 有权
标题翻译：活塞碗与喷射目标
公开(公告)号：US08459229B2
公开(公告)日：2013-06-11
申请号：US12763468
申请日：2010-04-20
申请人： Rainer J. Rothbauer , Charles E. Roberts, Jr.
发明人： Rainer J. Rothbauer , Charles E. Roberts, Jr.
IPC分类号： F02F3/26
CPC分类号： F02B23/0669 , F02B23/0621 , F02B23/0651 , F02B23/066 , F02B23/0687 , F02B23/0693 , F02B23/0696 , Y02T10/125
摘要： A piston for a direct injection engine is provided, the piston having a bowl at an upper end, the bowl forming a portion of a combustion chamber. The bowl includes an inner surface that defines a volume configured to receive a fuel-air mixture, the inner surface of the bowl including at least one surface feature that forms at least one edge portion as a target for the fuel spray, the edge portion defined by two or more surface portions. The surface feature may protrude from the inner surface of the bowl or may be recessed into the inner surface. Such surface features may reduce soot and improve fuel-air mixing.
摘要翻译：提供了一种用于直接喷射发动机的活塞，活塞在上端具有碗，碗形成燃烧室的一部分。碗包括内表面，其限定构造成接收燃料 - 空气混合物的体积，碗的内表面包括形成作为燃料喷雾的目标的至少一个边缘部分的至少一个表面特征，所述边缘部分被限定通过两个或更多个表面部分。表面特征可以从碗的内表面突出，或者可以凹入到内表面中。这种表面特征可以减少烟灰并改善燃料 - 空气混合。

10. 发明授权

US08156927B2 Combustion chamber structure for direct injection diesel engine 有权
标题翻译：直喷柴油机燃烧室结构
公开(公告)号：US08156927B2
公开(公告)日：2012-04-17
申请号：US12278581
申请日：2007-02-07
申请人： Shotaro Iikubo , Hiroshi Nakajima , Yusuke Adachi , Kiyohiro Shimokawa
发明人： Shotaro Iikubo , Hiroshi Nakajima , Yusuke Adachi , Kiyohiro Shimokawa
IPC分类号： F02B23/00
CPC分类号： F02B23/0696 , F02B23/0672 , F02B23/0693 , F02B2275/40 , Y02T10/125
摘要： A combustion chamber structure for a direct injection diesel engine is provided which can increase recirculated amount of exhaust gas while avoiding generation of black smoke and deterioration of fuel efficiency as much as possible.Disclosed is a combustion chamber structure for a direct injection diesel engine having a cavity 10 on a top surface of a piston 9. The cavity is concave to provide a majority of the combustion chamber. Fuel is injected from a center of a cylinder top radially into an inner periphery of the cavity 10 to self-ignite. A depression 24 is formed at an outer periphery of the cavity 10 and is sunken relative to the top surface of the piston 9 to provide a step. The depression 24 has a bottom with an outer periphery gradually rising radially outwardly in modestly curved surface to the top surface of the piston 9. The inlet lip 11 is formed at a position lower than the top surface of the piston 9 by an inner periphery of the bottom of the depression 24 and a combustion chamber wall 12 rising from a bottom of the cavity 10.
摘要翻译：提供了一种用于直喷柴油发动机的燃烧室结构，其可以增加废气的再循环量，同时尽可能避免产生黑烟和燃料效率的劣化。公开了一种用于直喷式柴油发动机的燃烧室结构，其在活塞9的顶表面上具有空腔10.空腔是凹形的，以提供燃烧室的大部分。燃料从圆筒顶部的中心径向喷射到空腔10的内周边以自燃。凹部24形成在空腔10的外周，相对于活塞9的上表面下沉，以提供台阶。凹部24具有底部，其外周在径向向外逐渐向适当弯曲的表面升高到活塞9的顶表面。入口唇缘11形成在比活塞9的顶表面低的位置处，凹陷24的底部和从空腔10的底部上升的燃烧室壁12。

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