公开(公告)号：US20050050882A1

公开(公告)日：2005-03-10

申请号：US10912018

申请日：2004-08-05

Applicant: Ramesh Poola ,  Paul Gottemoller ,  Michael Goetzke

Inventor： Ramesh Poola ,  Paul Gottemoller ,  Michael Goetzke

IPC: F02D13/02 ,  F02M25/07 ,  F01N3/00

CPC classification number: F02D13/0273 ,  F01L1/08 ,  F01L1/146 ,  F01L1/181 ,  F01L2105/00 ,  F01L2800/10 ,  F01L2820/01 ,  F02D13/0226 ,  F02M26/01 ,  Y02T10/18

Abstract: A diesel engine intake cam profile creates two intake valve events separated by a short dwell period each engine cycle. A relatively low valve lift during an engine exhaust event allows a portion of the exhaust gas to flow into an intake manifold and mix with intake air. The intake valve is then nearly closed for a dwell period until a normal intake valve opening occurs, drawing the mixture of air and exhaust gas back into the combustion chamber for compression and burning, upon closure of the intake valves.

公开(公告)号：US20050000498A1

公开(公告)日：2005-01-06

申请号：US10710755

申请日：2004-07-30

Applicant: Per Persson

Inventor： Per Persson

IPC: F01L1/08 ,  F01L1/18 ,  F01L13/00 ,  F01L13/06 ,  F02B75/02 ,  F02D13/02 ,  F02M25/07 ,  F01L1/34

CPC classification number: F02D13/04 ,  F01L1/18 ,  F01L1/181 ,  F01L13/00 ,  F01L13/065 ,  F01L2001/186 ,  F01L2105/00 ,  F01L2820/01 ,  F02B2075/027 ,  F02D13/0246 ,  F02D13/0273 ,  F02M26/01

Abstract: Method and arrangement for delivering EGR gas to combustion spaces in a multi-cylinder, four-stroke internal combustion engine. Each cylinder, with an associated piston, has at least one inlet valve and at least one exhaust valve (10) for controlling fluid interconnection between the combustion space in the cylinder and an intake system and an exhaust system, respectively. A rotatable camshaft (18) having a cam curve (23) is designed to interact with a cam follower (17) for operation of the exhaust valve (10) during a first opening and closing phase. The cam curve (23) is also designed to interact with a second cam follower (20) during a second opening and closing phase which is phase-offset in relation to the first aforementioned opening and closing phase. This configuration facilitates the cylinder being connected to the exhaust system during the induction stroke, once the exhaust stroke is completed.

Abstract translation: 将EGR气体输送到多缸四冲程内燃机中的燃烧空间的方法和装置。 具有相关活塞的每个气缸具有至少一个入口阀和至少一个用于分别控制气缸中的燃烧空间与进气系统和排气系统之间的流体互连的排气阀（10）。 具有凸轮曲线（23）的可旋转凸轮轴（18）被设计成与在第一打开和关闭阶段期间操作排气门（10）的凸轮从动件（17）相互作用。 凸轮曲线（23）还被设计成在与第一上述打开和关闭阶段相位偏移的第二打开和关闭阶段期间与第二凸轮从动件（20）相互作用。 一旦排气冲程完成，这种构造便于气缸在排气冲程期间连接到排气系统。

公开(公告)号：US06832584B2

公开(公告)日：2004-12-21

申请号：US10443887

申请日：2003-05-23

Applicant: Shinichi Murata ,  Toshihiko Oka

Inventor： Shinichi Murata ,  Toshihiko Oka

IPC: F01L134

CPC classification number: F01L1/181 ,  F01L1/267 ,  F01L1/34 ,  F01L2001/0535 ,  F01L2105/00

Abstract: A valve system for an internal combustion engine has first rocker arms supported by a rocker shaft such that they rock when driven by first cams; a second rocker arm supported by the rocker shaft such that it rocks when driven by a second cam, the second rocker arm being disposed adjacent to the first rocker arms; a connection switching mechanism that switches the first rocker arms between a state of being connected to the second rocker arm and a state of being disconnected from the second rocker arm; a forcing member that forces the second rocker arm toward the second cam while the second rocker arm is rocking; a supporting member rotatably supported by a support shaft provided on a cylinder head to support the forcing member; and a locking structure that inhibits the supporting member from rotating about the support shaft.

Abstract translation: 用于内燃机的阀系统具有由摇臂支撑的第一摇臂，使得它们在被第一凸轮驱动时摇动; 由所述摇杆支撑的第二摇臂，使得当由第二凸轮驱动时所述第二摇臂被摇动，所述第二摇臂布置成与所述第一摇臂相邻; 连接切换机构，其在连接到第二摇臂的状态与从第二摇臂断开的状态之间切换第一摇臂; 迫使构件，其在所述第二摇臂摆动时迫使所述第二摇臂朝向所述第二凸轮; 支撑构件，其由设置在气缸盖上的支撑轴可旋转地支撑，以支撑迫动构件; 以及阻止支撑构件围绕支撑轴旋转的锁定结构。

公开(公告)号：US20040226528A1

公开(公告)日：2004-11-18

申请号：US10801557

申请日：2004-03-17

Inventor： Hiroatsu Inui ,  Takanori Osuka

IPC: F01M001/06

CPC classification number: F01L1/053 ,  F01L1/181 ,  F01M9/103

Abstract: A lubricating structure for an OHC internal combustion engine including a cam holder, wherein an oil feed path for feeding a lubricant to an upper end of a valve stem is formed integrally with the cam holder so as to project therefrom.

Abstract translation: 一种用于包括凸轮保持器的OHC内燃机的润滑结构，其中用于将润滑剂供给到阀杆的上端的供油路径与凸轮保持器一体地形成为从其突出。

公开(公告)号：US20040154597A1

公开(公告)日：2004-08-12

申请号：US10700051

申请日：2003-11-04

Inventor： Souji Kashima ,  Toshimitsu Ikeda ,  Akihito Kasai

IPC: F02M025/07 ,  F01L001/34

CPC classification number: F02D13/0276 ,  F01L1/146 ,  F01L1/181 ,  F01L1/46 ,  F01L13/0021 ,  F01L13/0036 ,  F01L2800/10 ,  F01L2820/034 ,  F02M26/01 ,  F02M26/41 ,  F02M26/55 ,  Y02T10/18

Abstract: An exhaust gas reflux apparatus for an internal combustion engine includes one-way connection means provided between an intake rocker arm and an exhaust rocker arm. The one-way connection means moves between a non-operating position where the intake and exhaust rocker arms are released and an operating position where the intake and exhaust rocker arms are connected to open the exhaust valve only when the intake rocker arm rocks in a valve opening direction of the intake valve. An actuator for switching the one-way connection means between the non-operating position and the operating position is connected to the one-way connection means. Thus, an exhaust gas is sucked into a combustion chamber from an exhaust port using a general exhaust valve in an intake stroke, when exhaust gas reflux is required.

Abstract translation: 用于内燃机的废气回流装置包括设置在进气摇臂和排气摇臂之间的单向连接装置。 单向连接装置在进气和排气摇臂被释放的非操作位置和进排气摇臂连接的操作位置之间移动，仅当进气摇臂在阀门中摇动时才打开排气阀 进气阀的打开方向。 用于在非操作位置和操作位置之间切换单向连接装置的致动器连接到单向连接装置。 因此，当需要排气回流时，排气在进气冲程中使用一般的排气阀从排气口吸入燃烧室。

公开(公告)号：US20040154569A1

公开(公告)日：2004-08-12

申请号：US10735893

申请日：2003-12-16

Inventor： Shuji Nagano ,  Toshihiko Oka ,  Masanori Tokuhisa

IPC: F01L001/34 ,  F01L001/18

CPC classification number: F01L13/0036 ,  F01L1/181 ,  F01L1/267 ,  F01L2105/00

Abstract: There is provided a valve system for an internal combustion engine, in which a rocker shaft required to have a higher stiffness has a larger diameter. A rocker shaft on an intake side is formed to have a larger diameter than that of a rocker shaft on an exhaust side, and therefore, it is possible to ensure such stiffness as to compensate for an excess in weight and to improve valve operating characteristics of a valve system.

Abstract translation: 提供了一种用于内燃机的阀系统，其中需要具有较高刚度的摇臂具有较大的直径。 进气侧的摇杆形成为具有比排气侧的摇杆轴的直径大的直径，因此，可以确保这样的刚度来补偿重量过多并改善阀的操作特性 一个阀门系统。

公开(公告)号：US06772742B2

公开(公告)日：2004-08-10

申请号：US10087282

申请日：2002-03-01

Applicant: Ning Lei ,  Qianfan Xin

Inventor： Ning Lei ,  Qianfan Xin

IPC: F02M2507

CPC classification number: F02D13/0207 ,  F01L1/08 ,  F01L1/146 ,  F01L1/181 ,  F01L1/26 ,  F01L9/02 ,  F01L2013/0089 ,  F01L2800/00 ,  F02B29/0406 ,  F02D13/0261 ,  F02D13/0273 ,  F02D41/0007 ,  F02D41/006 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/05 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/47

Abstract: In an internal combustion engine, a fixed engine valve timing profile may be combined with a variable profile produced by a valve actuator coupled to one or more engine valves. By controlling one or more engine valves independent of the fixed timing profile, engine gas flow may be more flexibly regulated, thereby optimizing engine performance under a wide variety of operating conditions. In one embodiment, enhanced internal exhaust gas recirculation (EGR) may be achieved. A turbocharger may be used, along with the control provided by the valve actuator, to further control engine gas flow. In this manner, the present invention facilitates greater control of engine gas flow with minimal cost and complexity.

Abstract translation: 在内燃机中，固定的发动机气门正时轮廓可以与由耦合到一个或多个发动机气门的阀致动器产生的可变轮廓组合。 通过控制独立于固定定时轮廓的一个或多个发动机气门，可以更灵活地调节发动机气体流量，从而在各种操作条件下优化发动机性能。 在一个实施例中，可以实现增强的内部排气再循环（EGR）。 可以使用涡轮增压器以及由阀致动器提供的控制，以进一步控制发动机气体流量。 以这种方式，本发明有助于以最小的成本和复杂性更好地控制发动机气体流。

公开(公告)号：US20040112330A1

公开(公告)日：2004-06-17

申请号：US10604006

申请日：2003-06-20

Applicant: VOLVO LASTVAGNAR AB

Inventor： Nils-Olof HAKANSSON ,  Sixten Berglund ,  Goran Olsson

IPC: F01L013/06

CPC classification number: F01L1/24 ,  F01L1/181 ,  F01L13/065 ,  F01L2105/00 ,  F01L2760/004 ,  F02D13/04

Abstract: Method and arrangement for engine breaking in motor vehicles having an internal combustion engine with at least one cylinder, at least one exhaust valve at the cylinder and a rocker arm (4) for activation of the exhaust valve. The rocker arm (4) is arranged on a hollow rocker arm shaft (5) and arranged to be effected by ridges (2a, 2b, 2c) on a camshaft (2), the device additionally having a control valve (15, 16) for controlling the oil pressure in the rocker arm shaft (5), and means (6; 14) receptive to an increase of the oil pressure in the rocker arm shaft (5) being integrated in the rocker arm (4) for absorbing a play between the rocker arm (4) and the exhaust valve in the case of increase oil pressure. At least one of the ridges (2b, 2c) causes opening of the exhaust valve with an engine breaking effect. The control valve (15) includes an adjustable valve body (18, 19) and a canal (23) between the valve body (18, 19) and the rocker arm shaft (5) that has a controllable exhaust (36), the valve body (18, 19) being arranged to be positioned in a first position with pressure reducing effect and a second position without pressure reducing effect.

Abstract translation: 具有具有至少一个气缸的内燃机，气缸处的至少一个排气阀和用于启动排气门的摇臂（4）的机动车辆中的发动机破坏的方法和装置。 摇臂（4）布置在空心摇臂轴（5）上并且布置成由凸轮轴（2）上的脊（2a，2b，2c）实现，该装置另外具有控制阀（15,16） 用于控制摇臂轴（5）中的油压;以及装置（6; 14），所述装置（6; 14）容纳在所述摇臂（5）中的压力增加，所述摇臂轴（5）被集成在所述摇臂（4）中，用于吸收摇摆 在油压增加的情况下，在摇臂（4）和排气阀之间。 突起（2b，2c）中的至少一个引起排气门的打开。 控制阀（15）在阀体（18,19）和具有可控排气（36）的摇臂轴（5）之间包括可调节阀体（18,19）和管道（23），所述阀 本体（18,19）被布置成具有减压效果的第一位置和不具有减压效果的第二位置。

公开(公告)号：US20040069259A1

公开(公告)日：2004-04-15

申请号：US10065403

申请日：2002-10-14

Applicant: FORD GLOBAL TECHNOLOGIES, INC.

Inventor： Fang Shui ,  John Edmund Brune ,  Mark Alan Zagata

IPC: F01L001/34

CPC classification number: F01L1/181 ,  F01L1/34 ,  F01L13/0021 ,  F01L2105/00

Abstract: A variable lift cylinder valve system for an internal combustion engine includes a poppet valve operated by a rocker arm which is articulated about a translational pivot having its placement determined by a control shaft which operates a control arm in contact with the translational pivot such that rotation of the control shaft produces translational motion of the pivot so as to control the lift ratio of the rocker arm.

Abstract translation: 用于内燃机的可变提升缸阀系统包括由摇臂操作的提升阀，所述提升阀围绕平移枢轴铰接，该平移枢轴具有由控制轴确定的位置，控制轴操作与平移枢轴接触的控制臂， 控制轴产生枢轴的平移运动，以控制摇臂的升力比。

公开(公告)号：US06705264B2

公开(公告)日：2004-03-16

申请号：US09899519

申请日：2001-07-03

Applicant: Akihiro Onoue

Inventor： Akihiro Onoue

IPC: F01L118

CPC classification number: F02F1/4214 ,  F01L1/053 ,  F01L1/181 ,  F01L1/267 ,  F01L13/0036 ,  F01L2105/00 ,  F01L2800/00 ,  F02B61/045 ,  F02B75/22 ,  F02B2075/1824 ,  F02B2275/18 ,  F02F2001/245 ,  F02M35/10072 ,  F02M35/10111 ,  F02M35/10216 ,  F02M35/116 ,  F02M35/167

Abstract: A valve actuating system for actuating at least one valve of an engine includes an improved mechanism for varying the timing and/or lift of the valve. The mechanism uses two adjacent rockers that cooperate with two adjacent cams of a camshaft. In one operating condition, movement of a first rocker is transmitted to the valve through the second rocker and in another operating condition only the movement of the second rocker is transmitted to the valve. The rockers preferably cooperate with cams having different lifts. The lift of the cam driving the first rocker preferably is greater than the lift of the cam driving the second rocker.

Abstract translation: 用于致动发动机的至少一个阀的阀致动系统包括用于改变阀的正时和/或升程的改进机构。 该机构使用与凸轮轴的两个相邻凸轮配合的两个相邻的摇杆。 在一个操作条件下，第一摇杆的移动通过第二摇杆传递到阀，并且在另一操作状态下，仅第二摇臂的移动被传递到阀。 摇杆优选地与具有不同升降机的凸轮配合。 驱动第一摇杆的凸轮的提升优选地大于驱动第二摇杆的凸轮的升程。