公开(公告)号：US06595170B2

公开(公告)日：2003-07-22

申请号：US10164417

申请日：2002-06-10

Applicant: Theodorus Wiekmeijer

Inventor： Theodorus Wiekmeijer

IPC: F01L902

CPC classification number: F01L9/02 ,  F01L1/08 ,  F01L1/34 ,  F01L9/023 ,  F01L9/025 ,  F02B2275/32 ,  Y02T10/142

Abstract: A mechanism for operating one or more valves of a piston device, in particular an intake or exhaust valve of an internal-combustion engine, which valve can move between an open position and a closed position and is provided with associated restoring means for returning the valve to the closed position. The mechanism comprises a hydraulic valve actuator for operating the valve of the piston device, which valve actuator has a variable chamber which is delimited by a piston which can be coupled to the valve, in such a manner that when hydraulic fluid is supplied to the said chamber the valve opens. Furthermore, there are rotatable first and second cams, each having an associated cam follower, the relative angular position of the first cam and the second cam with respect to one another being adjustable. The mechanism also comprises a pressure actuator in which there is a pressure chamber having a variable volume and having a first and a second plunger, the first cam follower being coupled to the first plunger and the second cam follower being coupled to the second plunger, and retraction of one plunger leading to a reduction in the volume of the pressure chamber. The pressure chamber of the pressure actuator is connected to the variable chamber of the valve actuator to form a common chamber. The common chamber is provided with an opening, which opening has an associated valve assembly for opening and closing the opening. In the open position, the hydraulic pressure is insufficient to open or hold open the valve. The mechanism is designed in such a manner that, at the moment at which the first plunger begins to move out of the extended position into the retracted position, the second plunger is in its retracted position or has almost reached its retracted position, in such a manner that the valve which is operated by the valve actuator opens as a result of the retracting movement of the first plunger.

Abstract translation: 用于操作活塞装置的一个或多个阀的机构，特别是内燃机的进气或排气阀，该阀可以在打开位置和关闭位置之间移动，并且设置有相关联的恢复装置，用于使阀 该机构包括用于操作活塞装置的阀的液压阀致动器，该阀致动器具有可由能够联接到阀的活塞限定的可变室，使得当液压流体 被供应到所述室，阀打开。 此外，具有可旋转的第一和第二凸轮，每个具有相关联的凸轮从动件，第一凸轮和第二凸轮相对于彼此的相对角度位置是可调节的。该机构还包括压力致动器，其中存在压力 具有可变容积并具有第一和第二柱塞的腔室，第一凸轮从动件联接到第一柱塞，第二凸轮从动件联接到第二柱塞，并且一个柱塞的缩回导致体积的减小 压力致动器的压力室连接到阀致动器的可变室以形成公共室。公共室设有开口，该开口具有用于打开和关闭开口的相关联的阀组件。 在打开位置，液压不足以打开或保持阀的打开。机构设计成使得在第一柱塞开始从伸出位置移动到缩回位置的时刻， 第二柱塞处于其缩回位置或几乎达到其缩回位置，使得由于阀致动器操作的阀由于第一柱塞的缩回运动而打开。

公开(公告)号：US20020185092A1

公开(公告)日：2002-12-12

申请号：US10213625

申请日：2002-08-06

Inventor： Stefan Battlogg

IPC: F01L001/34

CPC classification number: F16H53/02 ,  F01L1/024 ,  F01L1/04 ,  F01L1/047 ,  F01L1/053 ,  F01L1/0532 ,  F01L1/08 ,  F01L1/26 ,  F01L1/30 ,  F01L1/46 ,  F01L2101/00 ,  F16H53/06 ,  Y10T74/2101 ,  Y10T74/2107

Abstract: The valve drive mechanism is particularly suitable for internal combustion engines of motor vehicles. The mechanism has at least one driven cam element and a valve control member which is moved (translationally or rotationally) by the cam element. The cam element is rotatingly mounted in a flexible surround element which is connected to the valve control member in a plane orthogonal to the axis of rotation of the cam element. The surround element can be reversably extended, such as elastically extended, to enable a variation in the resulting valve lift.

Abstract translation: 阀驱动机构特别适用于机动车辆的内燃机。 该机构具有至少一个从动凸轮元件和通过凸轮元件移动（平移或旋转）的阀控制构件。 凸轮元件旋转地安装在柔性环绕元件中，该柔性环绕元件在与凸轮元件的旋转轴线正交的平面中连接到阀控制构件。 环绕元件可以可逆地延伸，例如弹性伸长，以使所得到的气门升程变化。

公开(公告)号：US06467445B1

公开(公告)日：2002-10-22

申请号：US09970234

申请日：2001-10-03

Applicant: Wayne S. Harris

Inventor： Wayne S. Harris

IPC: F01L1300

CPC classification number: F01L1/047 ,  F01L1/08 ,  F01L1/185 ,  F01L13/0005

Abstract: A roller finger follower. includes an elongate body having first and second opposing sides each having respective inside surfaces. First and second grooves are defined by the respective inside surfaces. A slider bracket includes a top plate having a top surface that is substantially perpendicular to the first and second sides. First and second projections are affixed to or integral with the top plate, and protrude therefrom in a generally parallel manner relative to the top surface. The first projection is slidably disposed within the first groove and the second projection is slidably disposed within the second groove. A locking pin assembly is carried by the slider bracket, and selectively couples and decouples the slider bracket to and from the body.

Abstract translation: 滚筒手指跟随器。 包括具有第一和第二相对侧的细长体，每个侧面各自具有相应的内表面。 第一和第二槽由相应的内表面限定。 滑块支架包括具有大致垂直于第一和第二侧面的顶表面的顶板。 第一和第二突起固定在顶板上或与顶板一体，并且以大致平行的方式从顶板伸出。 第一突起可滑动地设置在第一槽内，第二突出部可滑动地设置在第二槽内。 锁定销组件由滑块支架承载，并且选择性地将滑动支架与身体相耦合和分离。

公开(公告)号：US06386160B1

公开(公告)日：2002-05-14

申请号：US09469303

申请日：1999-12-22

Applicant: Vincent A. Meneely ,  Robert B. Price

Inventor： Vincent A. Meneely ,  Robert B. Price

IPC: F01L134

CPC classification number: F01L13/065 ,  F01L1/08 ,  F01L1/181 ,  F01L2105/00 ,  F01L2760/003

Abstract: A valve control apparatus is provided for an internal combustion engine having a valve and a camshaft. The camshaft has an axis of rotation, a first raised portion and a second raised portion adjacent to the first raised portion. The second raised portion is angularly spaced-apart about the axis from the first raised portion. The apparatus includes a follower operatively engagable with the camshaft and the valve. The follower has a first operational mode where the first raised portion operatively engages the follower on each revolution of the camshaft to open the valve a first time on each revolution. There is a mechanism for selectively putting the follower in a second operational mode where the second raised portion operatively engages the follower to open the valve a second time on each revolution of the camshaft. The mechanism puts the follower in the second operational mode on each revolution of the camshaft before the second raised portion is fully aligned with the follower. The mechanism has a device which returns the follower to the first mode after the valve is opened by the second raised portion and before the first raised portion fully operatively engages the follower. Maximum opening and closing of the valve by the first raised portion is thereby unaffected when the mechanism selectively puts the follower in the second operational mode. The device is triggered by the camshaft or by relative movement between a portion of the rocker arm assembly and the valve.

Abstract translation: 为具有阀和凸轮轴的内燃机提供阀控制装置。 凸轮轴具有旋转轴线，第一凸起部分和与第一凸起部分相邻的第二凸起部分。 第二凸起部分围绕第一凸起部分的轴线成角度地间隔开。 该装置包括可操作地与凸轮轴和阀接合的从动件。 从动件具有第一操作模式，其中第一升高部分在凸轮轴的每转一次操作地接合从动件，以在每次旋转时第一次打开阀。 存在用于选择性地将从动件放置在第二操作模式中的机构，其中第二升高部分可操作地接合从动件以在凸轮轴的每转一次上打开阀。 该机构在第二升高部分与从动件完全对准之前，将从动件置于第二操作模式下的凸轮轴的每转。 该机构具有一种装置，该装置在阀被第二凸起部分打开之后以及在第一凸起部分完全操作地接合跟随器之前将从动件返回到第一模式。 因此，当机构选择性地将跟随器置于第二操作模式时，由第一隆起部分最大限度地打开和关闭阀门就不受影响。 该装置由凸轮轴或由摇臂组件的一部分与阀门之间的相对运动触发。

公开(公告)号：US20020007808A1

公开(公告)日：2002-01-24

申请号：US09962682

申请日：2001-09-26

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshihito Moriya ,  Shinichiro Kikuoka ,  Shuuji Nakano ,  Hideo Nagaosa

IPC: F01L001/00

CPC classification number: F01L13/0042 ,  F01L1/08 ,  F01L1/34 ,  F01L1/344

Abstract: Variable valve characteristic control apparatuses realize a change in a valve characteristic in accordance with a requirement of an internal combustion engine and a three-dimensional cam for use in the variable valve characteristic control apparatus. In the case of an intake valve, two lift patterns and continuously varying lift patterns between the two lift patterns are realized by the three-dimensional cam through the driving of the variable valve characteristic control apparatus. The two lift patterns provide different amounts of lift in the delay side of a peak within a valve operation angle, but provide equal amounts of lift in the delay side of the peak. Since the intake cam has the two lift patterns, it is possible to select a phase where the two lift patterns provide equal amounts of lift and provide different amounts of lift in phases other than the equal-lift phase so as to accord to the characteristics of the internal combustion engine. Therefore, it is possible to achieve conformation to the characteristics of the engine and therefore constantly realize a suitable valve characteristic in accordance with the operational condition of the engine. Hence, improvements can be achieved in the output performance of the engine, the fuel consumption, the combustion stability and the like.

公开(公告)号：US06318323B2

公开(公告)日：2001-11-20

申请号：US09331335

申请日：1999-06-17

Applicant: Walter Speil

Inventor： Walter Speil

IPC: F01L114

CPC classification number: F01L1/143 ,  F01L1/08 ,  F01L1/25 ,  F01L2820/01

Abstract: A tappet (1) with a hydraulic clearance compensation element (7), a positive opening of a one-way valve (15) being effected during a base circle region &agr; of the contacting cam (5) whereby a closing member (16) of the one-way valve (15) is loaded by an adjusting element (21), the adjusting element (21) extends through a bottom (3) of the tappet (1) and cooperates with a groove (22) on the outer peripheral surface (23) of the cam (5), the groove (22) extends over the entire periphery of the cam (5) with the exception of its base circle region so that when the base circle region &agr; comes to be situated opposite the bottom (3), a positive opening of the closing member (16) is effected whereby no undesired relieving of the gas exchange valve actuated by the tappet (1) nor its opening due to a transmission of undesired opening movements from the cam (5) to the clearance compensation element (7) can occur in the base circle region &agr; of the cam (5).

Abstract translation: 具有液压间隙补偿元件（7）的挺杆（1），在接触凸轮（5）的基圆区域α期间实现单向阀（15）的正开口，由此闭合构件（16） 单向阀（15）由调节元件（21）装载，调节元件（21）延伸穿过挺杆（1）的底部（3）并与外周表面上的凹槽（22）配合 （5）的凸缘（23）中，除了其基圆区域之外，凹槽（22）在凸轮（5）的整个周边上延伸，使得当基圆区域α位于与底部相对时 如图3所示，闭合构件（16）的正开口被实现，由此由于由凸轮（5）向不同的凸轮（5）传递不期望的打开运动而不由于挺杆（1）致动的气体交换阀的不期望的释放或其开口 间隙补偿元件（7）可能发生在凸轮（5）的基圆区域α中。

公开(公告)号：US06276324B1

公开(公告)日：2001-08-21

申请号：US09538440

申请日：2000-03-29

Applicant: Gar M. Adams ,  Thomas A. Immel

Inventor： Gar M. Adams ,  Thomas A. Immel

IPC: F01L102

CPC classification number: F02B63/02 ,  F01L1/02 ,  F01L1/024 ,  F01L1/026 ,  F01L1/04 ,  F01L1/08 ,  F01L1/12 ,  F01L1/46 ,  F02B2075/027 ,  F02F1/002

Abstract: An overhead cam engine with a drive train including a crankshaft, connecting rod, and piston assembly for reciprocating the piston within the cylinder bore of a cylinder block. A cam ring rotates on the same axis as that along which the piston reciprocates, and has lobes on its upper surface for periodically actuating a pair of rocker arms which open and close intake and exhaust valves located within the cylinder head. The cam ring is driven at half speed by the crankshaft through a gear train arrangement including a timing shaft disposed on an axis parallel to the piston axis with gears at both ends for connecting the crankshaft with the cam ring.

Abstract translation: 具有包括曲轴，连杆和活塞组件的传动系的顶置凸轮发动机，用于使活塞在气缸体的气缸孔内往复运动。 凸轮环在与活塞往复运动的轴线相同的轴线上旋转，并且在其上表面上具有凸起以周期性地致动一对摇臂，其打开和关闭位于气缸盖内的进气和排气阀。 凸轮环由曲轴以半速驱动，该齿轮系布置包括设置在平行于活塞轴线的轴上的定时轴，两端具有用于将曲轴与凸轮环连接的齿轮。

公开(公告)号：US06260525B1

公开(公告)日：2001-07-17

申请号：US09519635

申请日：2000-03-06

Applicant: David F. Moyer

Inventor： David F. Moyer

IPC: F01L134

CPC classification number: F01L13/0005 ,  F01L1/08 ,  F01L9/04 ,  F01L13/0015 ,  F01L2009/0469 ,  F01L2103/01 ,  F01L2800/13 ,  Y10T477/83

Abstract: A method for improving efficiency and reducing emissions of an internal combustion engine. Variable displacement engine capabilities are achieved by disabling engine valves during load changes and constant load operations. Active cylinders may be operated at minimum BSFC by intermittently disabling other cylinders to provide the desired net torque. Disabling is begun by early closing of the intake valve to provide a vacuum at BDC which will result in no net gas flow across the piston rings, and minimum loss of compression energy in the disabled cylinder; this saving in engine friction losses is significant with multiple disablements.

Abstract translation: 一种提高内燃机效率和减少排放的方法。 可变排量发动机功能通过在负载变化和恒定负载运行期间禁用发动机阀来实现。 活动气瓶可以通过间歇地禁用其他气缸以提供所需的净转矩而在最小BSFC下操作。 禁止通过提前关闭进气阀来开始，以在BDC提供真空，这将导致活塞环上没有净气体流动，以及禁用气缸中压缩能量的最小损失; 发动机摩擦损失的这种节省是多重障碍的重要的。

公开(公告)号：US06257176B1

公开(公告)日：2001-07-10

申请号：US09451757

申请日：1999-12-01

Applicant: Yuichi Shimasaki ,  Eitetsu Akiyama ,  Kenji Abe ,  Shunichi Tsuzuki

Inventor： Yuichi Shimasaki ,  Eitetsu Akiyama ,  Kenji Abe ,  Shunichi Tsuzuki

IPC: F02B6906

CPC classification number: F01L1/08 ,  F01L1/267 ,  F02B69/06 ,  F02B2075/025 ,  F02B2075/027

Abstract: A two-cycle action cam having two protruding parts 1a and 1b and a four-cycle action cam 3 having one protruding part 3a are selectively used by a cam change mechanism 46i. The two-cycle action cam 1 effects opening of the inlet and exhaust valves once per revolution of the crankshaft and the four-cycle action cam 3 effects opening of the inlet and exhaust valves once per two revolutions of the crankshaft. The four-cycle action is selected when the engine is in the low revolving speed and running at a low load and the two-cycle action is otherwise selected.

Abstract translation: 具有两个突出部分1a和1b的双周期动作凸轮以及具有一个突出部分3a的四周动作凸轮3被凸轮转换机构46i选择性地使用。 双循环动作凸轮1使曲轴每转一次打开入口和排气门，并且四循环动作凸轮3使曲轴每两转一次打开入口和排气门。 当发动机处于低转速并以低负载运行时，选择四循环动作，否则选择双循环动作。

公开(公告)号：US5927238A

公开(公告)日：1999-07-27

申请号：US29259

申请日：1998-03-06

Applicant: Stephen James Watson

Inventor： Stephen James Watson

IPC: F01L13/00 ,  F02D13/02 ,  F02D41/30 ,  F01L1/40 ,  F01L31/24 ,  F02B47/10

CPC classification number: F02D13/0246 ,  F01L1/08 ,  F01L13/0057 ,  F02D13/0261 ,  F02D13/0273 ,  F02D41/006 ,  F02D41/3023 ,  Y02T10/18

Abstract: A method of controlling a four stroke internal combustion engine having at least one combustion chamber, the or each combustion chamber having at least one exhaust valve, the method including varying the timing of the closure of the or each exhaust valve with respect to the crank angle of the engine by advancing the exhaust valve closure at least under certain engine conditions in response to an increased engine load, and/or delaying the exhaust valve closure at least under certain conditions in response to a decreased engine load.

Abstract translation: PCT No.PCT / AU96 / 00611 Sec。 371日期1998年3月6日 102（e）1998年3月6日PCT PCT 1996年9月26日PCT公布。 公开号WO97 / 12127 日期1997年4月3日一种控制具有至少一个燃烧室的四冲程内燃机的方法，该燃烧室或每个燃烧室具有至少一个排气阀，该方法包括改变每个排气门的关闭时机， 至少在某些发动机条件下响应于增加的发动机负载推进排气门关闭，和/或至少在某些条件下响应于减小的发动机负荷来延​​迟排气门关闭，来相对于发动机的曲柄角。