公开(公告)号：US20150240671A1

公开(公告)日：2015-08-27

申请号：US14427114

申请日：2013-09-03

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Makoto Nakamura

IPC: F01L1/26 ,  F01L13/00 ,  F01L1/46

CPC classification number: F01L1/267 ,  F01L1/10 ,  F01L1/255 ,  F01L1/462 ,  F01L13/00 ,  F01L13/0005 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2001/2433 ,  F02D13/0211 ,  F02D13/0246 ,  Y02T10/18

Abstract: Provided is a variable valve device for an internal combustion engine, capable of improving engine characteristics by increasing the maximum valve lift of an intake valve to a large valve lift while preventing excessive lost motion operation of lost motion mechanisms. The variable valve device includes intake- and exhaust-side swing arms that pivot to open and close intake valves (3a, 3b) and exhaust valves (61a, 61b) in two cylinders #1, #2, intake- and exhaust-side hydraulic lash adjusters (10a, 10b, 65a, 65b) that serve as pivot points of the respective swing arms, a variable valve system that continuously varies valve lift characteristics of the intake valves and lost motion mechanisms (11) that stop opening and closing of the intake exhaust valves by lost motion of the intake- and exhaust-side hydraulic lash adjusters on the cylinder #1. The maximum valve lifts of the intake valves are set larger than valve lifts of the exhaust valves. The minimum valve lifts of the intake valves are set smaller than the valve lifts of the exhaust valves.

Abstract translation: 提供一种用于内燃机的可变气门装置，其能够通过将进气门的最大气门升程增加到大的气门升程来提高发动机特性，同时防止空转机构的过度的运动失灵。 可变气门装置包括进排气侧摆动臂，其枢转以打开和关闭两个气缸＃1，＃2，进气和排气侧液压的进气门（3a，3b）和排气门（61a，61b） 用作各个摆臂的枢转点的间隙调节器（10a，10b，65a，65b），连续改变进气门的气门升程特性的可变气门系统和停止打开和关闭的空动机构（11） 进气排气阀由于气缸＃1上进气排气侧液压间隙调节器的运动而失效。 进气阀的最大气门升程设定得大于排气阀的气门升程。 进气门的最小气门升程设定得小于排气阀的气门升程。

公开(公告)号：US08800531B2

公开(公告)日：2014-08-12

申请号：US12722617

申请日：2010-03-12

Applicant: Stephen M. Wiley ,  John S. Pipis, Jr.

Inventor： Stephen M. Wiley ,  John S. Pipis, Jr.

IPC: F02D13/04

CPC classification number: B60T1/062 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L1/267 ,  F01L1/462 ,  F01L9/02 ,  F01L13/065 ,  F01L2105/00 ,  F01L2810/02 ,  F01L2820/033

Abstract: A compression brake system of an internal combustion engine includes a mechanical system for coupling a camshaft to a brake actuator assembly. The mechanical system includes a stationary housing defining an aperture and a lifter is slidably disposed in the aperture. A resilient element is disposed between the housing and the shoulder and configured to bias the lifter toward the camshaft. The mechanical system is dedicated to compression braking, and therefore the camshaft may have a lobe optimized for braking.

Abstract translation: 内燃机的压缩制动系统包括用于将凸轮轴联接到制动致动器组件的机械系统。 机械系统包括限定孔的固定壳体，并且提升器可滑动地设置在孔中。 弹性元件设置在壳体和肩部之间并且构造成将升降器朝向凸轮轴偏置。 机械系统专用于压缩制动，因此凸轮轴可以具有为制动而优化的凸角。

公开(公告)号：US08479696B2

公开(公告)日：2013-07-09

申请号：US12973199

申请日：2010-12-20

Applicant: Koshoku Sai

Inventor： Koshoku Sai

IPC: F01L1/04

CPC classification number: F16F15/0237 ,  F01L1/462 ,  F01L3/10 ,  F01L2101/00 ,  F01L2810/02 ,  F01L2810/03 ,  F01M9/10 ,  F16F1/128 ,  F16F1/32 ,  F16F3/02 ,  F16F2230/04

Abstract: A valve train of an internal combustion engine equipped with a valve reciprocated by a cam is equipped with a spring seat manufactured in order to prevent the surging of a coil spring. A spring seat having a squeeze film effect of damping the axial motion of a coil spring is provided at one end of the coil spring in a closing direction. The spring seat is configured to be provided with an oil slit which radially intersects and extends helically around a valve axis.

Abstract translation: 配备有由凸轮往复运动的阀的内燃机的气门机构配备有为防止螺旋弹簧的喘振而制造的弹簧座。 具有阻尼螺旋弹簧的轴向运动的挤压膜效果的弹簧座设置在螺旋弹簧的闭合方向的一端。 弹簧座构造成设置有一个油缝，其沿着阀轴线径向相交并且螺旋形地延伸。

公开(公告)号：US08312853B2

公开(公告)日：2012-11-20

申请号：US12704750

申请日：2010-02-12

Applicant: Kazuo Iwata ,  Noritoshi Takamura ,  Jun Tominaga ,  Norihiro Tajima

Inventor： Kazuo Iwata ,  Noritoshi Takamura ,  Jun Tominaga ,  Norihiro Tajima

IPC: F01L3/10

CPC classification number: F16F3/04 ,  F01L1/205 ,  F01L1/462 ,  F01L3/10 ,  F16F2228/08

Abstract: A valve spring device is provided with a first coil spring and a second coil spring combined in series with each other. The inside diameter (coil inside diameter) of the second coil spring is greater than the outside diameter (coil outside diameter) of the first coil spring. A part of the first coil spring including an end portion along an axis is inserted into the second coil spring, thereby forming a combined spring. The end portion of the first coil spring and an end portion of the second coil spring are connected to each other by a connecting member. The first and second coil springs are compressed along the axis as they are located in series between a cylinder head and a retainer. A shaft of a valve is passed within the coil springs.

Abstract translation: 阀弹簧装置设置有彼此串联组合的第一螺旋弹簧和第二螺旋弹簧。 第二螺旋弹簧的内径（线圈内径）大于第一螺旋弹簧的外径（线圈外径）。 包括沿着轴线的端部的第一螺旋弹簧的一部分被插入到第二螺旋弹簧中，从而形成组合的弹簧。 第一螺旋弹簧的端部和第二螺旋弹簧的端部通过连接构件相互连接。 第一和第二螺旋弹簧沿着轴线被压缩，因为它们串联在气缸盖和保持器之间。 阀的轴在螺旋弹簧内通过。

公开(公告)号：US08166933B2

公开(公告)日：2012-05-01

申请号：US12679625

申请日：2008-09-26

Applicant: Yasushi Fujimoto ,  Atsushi Ogasawara

Inventor： Yasushi Fujimoto ,  Atsushi Ogasawara

IPC: F01L9/02 ,  F02B75/32

CPC classification number: F16D25/123 ,  F01L1/143 ,  F01L1/181 ,  F01L1/462 ,  F01L13/0005 ,  F01L2001/0535 ,  F01L2001/0537 ,  F01L2105/00 ,  F02B61/02 ,  F02B67/04 ,  F02B75/22 ,  F16D21/06 ,  F16D48/0206 ,  F16D2021/0661 ,  F16D2021/0692 ,  F16D2048/0281 ,  F16D2300/26 ,  F16D2500/1117 ,  F16H3/006

Abstract: A power unit for a small-sized vehicle that includes a valve operating system equipped with a hydraulic valve operation mode change mechanism capable of changing the operational mode of an engine valve, and a clutch device disposed between a crankshaft and a shift mechanism so as to switch hydraulically between connection and disconnection of power transmission, wherein a discharge outlet of one oil pump (209) driven by power transmission from the crankshaft is connected in common to a valve operation mode change mechanisms (63, 64) and a clutch device (102). This enables the hydraulic system to be made compact while avoiding any increase in the overall bulk of the power unit, thus providing a power unit suitable for a small-sized vehicle.

Abstract translation: 一种用于小型车辆的动力单元，其包括具有能够改变发动机气门的操作模式的液压阀操作模式改变机构的阀操作系统，以及设置在曲轴和变速机构之间的离合器装置，以便 在动力传递的连接和断开之间液压地开关，其中通过来自曲轴的动力传递驱动的一个油泵（209）的排出口与阀操作模式改变机构（63,64）和离合器装置（102）共同连接 ）。 这使得能够使液压系统紧凑化，同时避免动力单元的整个体积的任何增加，从而提供适合于小型车辆的动力单元。

公开(公告)号：US08100100B2

公开(公告)日：2012-01-24

申请号：US12539865

申请日：2009-08-12

Applicant: Price George Turner, Jr.

Inventor： Price George Turner, Jr.

IPC: F01M9/10

CPC classification number: F16M1/026 ,  F01L1/146 ,  F01L1/183 ,  F01L1/20 ,  F01L1/46 ,  F01L1/462 ,  F01L2001/054 ,  F01L2101/00 ,  F01L2810/01 ,  F01L2810/02 ,  F01M9/08 ,  F01M9/10

Abstract: A valve cover housing for internal combustion engines. In one embodiment, the valve cover housing includes a conduit for passing a coolant fluid near the valvetrain, and in another embodiment, the housing includes an internal protuberance or other structure that promotes the dripping of oil or another lubricant onto a selected region or component of the valvetrain, such as the valve springs.

Abstract translation: 用于内燃机的阀盖壳体。 在一个实施例中，阀盖壳体包括用于使靠近阀门导管的冷却剂流体通过的导管，并且在另一个实施例中，壳体包括内部突起或其它结构，其促进将油或另一种润滑剂滴到选定的区域或部件上 阀门阀门，如阀门弹簧。

公开(公告)号：US08056520B2

公开(公告)日：2011-11-15

申请号：US12532465

申请日：2008-02-19

Applicant: Harald Elendt ,  Andreas Nendel

Inventor： Harald Elendt ,  Andreas Nendel

IPC: F01L1/30

CPC classification number: F01L13/0005 ,  F01L1/462 ,  F01L3/10 ,  F01L2013/0094

Abstract: A valve drive of an internal combustion engine, which has a reciprocating poppet valve and a spring element which impinges the closed reciprocating poppet valve with force against the action of a valve seat. The force characteristics are substantially independent of the lift characteristics of the reciprocating poppet valve. The spring element is part of a snap-in locking device, which is stationarily mounted in the engine and surrounds the valve stem of the reciprocating poppet valve. The snap-in locking device has snap-in elements arranged in the power flux between the spring element and reciprocating poppet valve. The snap-in elements are supported in the direction of closure of the reciprocating poppet valve on a snap-in surface of the valve stem when the reciprocating poppet valve is closed and on a snap-in surface of the snap-in locking device when the reciprocating poppet valve is open.

Abstract translation: 具有往复式提升阀和弹簧元件的内燃机的阀驱动器，该弹簧元件抵抗阀座的作用而撞击封闭的往复式提升阀。 力特性基本上与往复提升阀的升程特性无关。 弹簧元件是卡入式锁定装置的一部分，其固定地安装在发动机中并且围绕往复式提升阀的阀杆。 卡扣锁定装置具有布置在弹簧元件和往复提升阀之间的动力通量中的卡入元件。 当往复式提升阀关闭时，卡扣元件在往复式提升阀的关闭方向被支撑在阀杆的卡入表面上，并且当卡扣式锁定装置的卡扣表面在 往复式提升阀打开。

公开(公告)号：US20100294220A1

公开(公告)日：2010-11-25

申请号：US12711729

申请日：2010-02-24

Applicant: Paolo Ferreri ,  Gianolio Laura ,  Micelli Damiano ,  Peci Davide ,  Perna Francesco ,  Vattaneo Francesco

Inventor： Paolo Ferreri ,  Gianolio Laura ,  Micelli Damiano ,  Peci Davide ,  Perna Francesco ,  Vattaneo Francesco

IPC: F01L9/04 ,  F01L3/10 ,  F01L9/02 ,  F01M1/06 ,  F01L1/34

CPC classification number: F01L9/023 ,  F01L1/462 ,  F01L2001/34446 ,  F01L2800/06

Abstract: An internal combustion engine comprises at least two intake valves per cylinder, each of them provided with respective spring return means which push the valve towards a closed position. The intake valves of each cylinder are controlled by a single cam of an engine camshaft, through a single tappet actuated by said cam and through a hydraulic system. The hydraulic system comprises a master cylinder having a piston positively connected to said tappet and two hydraulic actuators respectively associated to the two intake valves and which are both hydraulically connected to a common pressure chamber of said master cylinder. The return spring means associated to the intake valves of one and the same engine cylinder have predetermined loadS and/or rigidities which are different from each other, in such a way that said intake valves have different lift profiles, so as to cause a swirl motion of the air fed into the engine cylinder, which allows to improve the air-fuel mixing.

Abstract translation: 内燃机包括每个气缸至少两个进气门，它们各自设置有相应的弹簧复位装置，其将阀推向关闭位置。 每个气缸的进气门由发动机凸轮轴的单个凸轮通过由所述凸轮驱动并通过液压系统驱动的单个挺杆来控制。 液压系统包括主缸，其具有与所述挺杆正向连接的活塞和分别与两个进气门相关联的两个液压致动器，并且两者均液压地连接到所述主缸的公共压力室。 与同一发动机气缸的进气门相关联的复位弹簧装置具有彼此不同的预定负载和/或刚度，使得所述进气门具有不同的升程曲线，从而产生旋转运动 的空气进入发动机气缸，这允许改善空气 - 燃料混合。

公开(公告)号：US07766312B2

公开(公告)日：2010-08-03

申请号：US11921257

申请日：2006-05-31

Applicant: Noritoshi Takamura ,  Satoru Tendo

Inventor： Noritoshi Takamura ,  Satoru Tendo

IPC: F16F1/02

CPC classification number: F16F1/06 ,  F01L1/462 ,  F01L3/10

Abstract: A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end.A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the coil end 11 and the first turn 13 in a free state without load on the coil spring. Due to the gap, the coil spring including the coil end 11 and first turn 13 can be entirely processed by shot peening as well as the remaining portion. The first turn 13 receives a combination of torsional stress and Hertzian stress (contact stress). Since the coil end 11 that receives high Hertzian stress is shifted in a diametral outer or inner direction of the coil spring relative to the first turn 13, a contact point on the first turn 13 is shifted in the diametral outer or inner direction to reduce the torsional stress on the first turn 13. The shift and gap formed between the coil end 11 and the first turn 13 are effective to prevent excessive bending stress and breakage of the coil end 11 when the coil end 11 and first turn 13 are repeatedly engaged and disengaged in the gap.

Abstract translation: 螺旋弹簧在第一匝上减少赫兹应力，并在线圈端减少弯曲应力。 线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上移动，以在线圈端部11和第一匝13之间形成在线圈弹簧上无负载的自由状态下的垂直间隙。 由于间隙，包括线圈端11和第一匝13的螺旋弹簧可以通过喷丸硬化以及剩余部分完全加工。 第一回合13接受扭转应力和赫兹应力（接触应力）的组合。 由于接受高赫兹应力的线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上偏移，所以第一匝13上的接触点沿直径外侧或内侧方向偏移， 第一匝13上的扭转应力13.线圈端部11和第一匝13之间形成的移动和间隙有效地防止线圈端部11和第一匝13反复接合时线圈端部11的过度的弯曲应力和断裂，并且 脱离了差距。

公开(公告)号：US20100186690A1

公开(公告)日：2010-07-29

申请号：US12362379

申请日：2009-01-29

Applicant: John G. Wolck

Inventor： John G. Wolck

IPC: F01L1/32

CPC classification number: F01L1/32 ,  F01L1/462 ,  F01L2101/00 ,  Y10T29/49405

Abstract: A valve rotator for use in an internal combustion engine. The valve rotator including a plurality of retention members, each able to removeably and rotateably couple the stationary housing to the rotating body. The plurality of retention members are defined by a plurality of recesses allowing each of the plurality of retention members to deflect with respect to the stationary housing. The retention members allow the rotating body to be removed from the stationary housing without the need for permanently damaging the stationary housing (e.g. during rebuilding). Additionally, the retention members may be incorporated on housings that have undergone heat treatment processes without rendering the housings susceptible to cracking or damage.

Abstract translation: 一种用于内燃机的阀旋转器。 阀旋转器包括多个保持构件，每个保持构件能够将固定壳体可拆卸地可旋转地联接到旋转体。 多个保持构件由多个凹部限定，允许多个保持构件中的每一个相对于固定壳体偏转。 保持构件允许旋转体从静止壳体移除，而不需要永久损坏固定壳体（例如在重建期间）。 此外，保持构件可以结合在已经经历热处理工艺的壳体上，而不会使壳体易于破裂或损坏。