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    VALVE TIMING ADJUSTMENT DEVICE
    1.
    发明申请
    VALVE TIMING ADJUSTMENT DEVICE 审中-公开

    公开(公告)号：US20190136723A1

    公开(公告)日：2019-05-09

    申请号：US16173124

    申请日：2018-10-29

    Applicant: DENSO CORPORATION

    Inventor： Akira IWASAKI ,  Genki SUZUKI

    IPC: F01L1/352 ,  F01L1/348

    CPC classification number: F01L1/352 ,  F01L1/024 ,  F01L1/348 ,  F01L2001/0537 ,  F01L2103/00 ,  F01L2103/01 ,  F01L2250/02 ,  F01L2250/04 ,  F01L2820/032

    Abstract: A housing is rotatable synchronously with a crankshaft of an engine. A plurality of external teeth arrangements is respectively shaped into a ring form and is formed integrally with the housing in one piece and is configured to mesh with a plurality of chains, respectively, each of which is wound around the crankshaft or a sprocket that is rotatable. A cam plate is connected to a camshaft of the engine and is rotatable relative to the housing. A plurality of stoppers is formed integrally with the housing in one piece while the stoppers are configured to limit relative rotation between the housing and the cam plate within a predetermined range when the stoppers contact the cam plate. Each stopper is placed at a position, at which the stopper does not overlap with any of the external teeth arrangements in a view taken in an axial direction of the housing.

    DEVICE FOR SETTING THE RELATIVE ROTATIONAL POSITION OF A CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE RELATIVE TO A CRANKSHAFT DRIVING THE CAMSHAFT
    4.
    发明申请
    DEVICE FOR SETTING THE RELATIVE ROTATIONAL POSITION OF A CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE RELATIVE TO A CRANKSHAFT DRIVING THE CAMSHAFT 有权
    用于设置驱动CAMSHAFT的起重机的内燃机发动机的相对旋转位置的装置

    公开(公告)号：US20090188453A1

    公开(公告)日：2009-07-30

    申请号：US12359499

    申请日：2009-01-26

    Applicant: Andreas Strauss ,  Joachim Dietz ,  Boris Putz

    Inventor： Andreas Strauss ,  Joachim Dietz ,  Boris Putz

    IPC: F01L1/348

    CPC classification number: F01L1/348 ,  F01L1/02

    Abstract: A device for setting the relative rotational position of a camshaft (2, 3) of an internal combustion engine (11) relative to a crankshaft (1) driving the camshaft (2, 3), having a traction mechanism drive (4) wrapping around the crankshaft (1) and the camshaft (2, 3), which includes a loaded traction-mechanism section (8, 9) and a non-loaded traction-mechanism section (7), and a tensioning device (5, 6, 10) for changing the length of the loaded traction-mechanism section (8, 9). The tensioning device (5, 6, 10) is supported on the internal combustion engine (11) and has an adjustment device (20) that can be fixed.

    Abstract translation: 一种用于设置内燃机（11）的凸轮轴（2,3）相对于驱动凸轮轴（2,3）的曲轴（1）的相对旋转位置的装置，具有牵引机构驱动装置（4） 包括负载牵引机构部分（8,9）和无负载牵引机构部分（7）的曲轴（1）和凸轮轴（2,3）和张紧装置（5,6,10 ），用于改变加载的牵引机构部分（8,9）的长度。 张紧装置（5,6,10）被支撑在内燃机（11）上，并且具有可固定的调节装置（20）。

    Variable timing camshaft drive system
    6.
    发明授权
    Variable timing camshaft drive system 失效
    可变正时凸轮轴驱动系统

    公开(公告)号：US5606941A

    公开(公告)日：1997-03-04

    申请号：US516457

    申请日：1995-08-17

    Applicant: Alfred Trzmiel ,  Wolfgang Stephan ,  Thomas Alber ,  Andreas Jaksch ,  Olaf Fiedler

    Inventor： Alfred Trzmiel ,  Wolfgang Stephan ,  Thomas Alber ,  Andreas Jaksch ,  Olaf Fiedler

    IPC: F02B67/06 ,  F01L1/34 ,  F01L1/348 ,  F16H53/04

    CPC classification number: F01L1/024 ,  F01L1/348

    Abstract: A variable valve timing camshaft drive system is provided with an adjusting device arranged between the loose end and the load end of a chain which is operative between chain wheels of two parallel camshafts of an internal-combustion engine. For tightening the chain and influencing the relative rotating position of a camshaft--variable valve timing--the device comprises a first hydraulic piston and a second hydraulic piston. The first hydraulic piston can be alternately acted upon by pressure and, in the process, takes up two end positions. By means of a third hydraulic piston, the first hydraulic piston may also be fixed in an intermediate position.

    Abstract translation: 可变气门正时凸轮轴驱动系统设置有调节装置，该调节装置布置在链条的松动端和负载端之间，其可操作在内燃机的两个平行凸轮轴的链轮之间。 为了紧固链条并影响凸轮轴可变气门正时的相对旋转位置 - 该装置包括第一液压活塞和第二液压活塞。 第一液压活塞可以通过压力交替地作用，并且在该过程中占据两个端部位置。 借助于第三液压活塞，第一液压活塞也可以固定在中间位置。

    Variable camshaft timing system utilizing changes in length of portions of a chain or belt
    7.
    发明授权
    Variable camshaft timing system utilizing changes in length of portions of a chain or belt 失效
    可变凸轮轴定时系统利用链条或皮带部分长度的变化

    公开(公告)号：US5152261A

    公开(公告)日：1992-10-06

    申请号：US790619

    申请日：1991-11-07

    Applicant: Roger P. Butterfield ,  Franklin R. Smith

    Inventor： Roger P. Butterfield ,  Franklin R. Smith

    IPC: F01L1/34 ,  F01L1/344 ,  F01L1/348 ,  F02B67/06

    CPC classification number: F01L1/34409 ,  F01L1/348

    Abstract: A driveshaft in the form of a crankshaft (12) or a camshaft (212) drives a camshaft (16, 216) by means of a chain (20, 220) which is trained around a sprocket (14, 214) on the driveshaft and another sprocket (18, 218) on the driven camshaft. The driven camshaft is selectively advanced or retarded in its position by lengthening or shortening one portion (20a, 220a) of the chain and simultaneously lengthening or shortening another portion (20b, 220b) thereof by extending one hydraulic tensioning device (22, 122, 222, 322) and simultaneously retracting another hydraulic tensioning device (24, 124, 224, 324). A spool valve member (50) is controllably positioned within a valve body (48), in response to instructions from an engine control unit (58) which acts through a pulse width modulated solenoid (56) to increase or decrease a load acting on one end of the spool, to permit or prevent hydraulic fluid from flowing from one tensioner to another as a result of a pressure differential between the tensioners. The pressure differential exists as a result of torque reversals in the driven camshaft during its normal rotation, the torque reversals having the effect of changing the levels of tension within the portions of the chain that are engaged by the tensioners.

    Abstract translation: 曲轴（12）或凸轮轴（212）形式的驱动轴通过围绕驱动轴上的链轮（14,214）而被训练的链条（20,220）驱动凸轮轴（16,216），并且 在从动凸轮轴上的另一个链轮（18,218）。 被驱动的凸轮轴通过延长或缩短链条的一部分（20a，220a）而选择性地前进或延迟，同时通过延伸一个液压张紧装置（22,122,222）来延长或缩短另一部分（20b，220b） ，322）并且同时缩回另一液压张紧装置（24,124,224,324）。 响应来自发动机控制单元（58）的指令，滑阀构件（50）被可控地定位在阀体（48）内，发动机控制单元（58）通过脉宽调制螺线管（56）作用，以增加或减少作用在一个 从而允许或防止液压流体由于张紧器之间的压力差而从一个张紧器流到另一张紧器。 由于在正常旋转期间从动凸轮轴中的扭矩反转的结果，存在压力差，扭矩反转具有改变由张紧器接合的链条部分内的张力水平的效果。

    Variable camshaft timing system
    9.
    发明授权
    Variable camshaft timing system 失效
    可变凸轮轴定时系统

    公开(公告)号：US4744338A

    公开(公告)日：1988-05-17

    申请号：US17670

    申请日：1987-02-24

    Applicant: Samuel J. Sapienza, IV

    Inventor： Samuel J. Sapienza, IV

    IPC: F01L1/34 ,  F01L1/348 ,  F02B75/22

    CPC classification number: F02B75/22 ,  F01L1/348 ,  Y10S474/90

    Abstract: A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt. First and second idler arms, each having an idler wheel connected thereto, are independently pivoted around a common pivot point by means of a pair of positioning cams operatively connected to an electric stepping motor. The motor is controlled from an electronic control unit which receives signals indicating the engine operating characteristics and through a look-up table steps the positioning cams which in turn pivots the idler arms to rotate the intake camshaft relative to the exhaust camshaft thereby changing the intake valve timing.

    Abstract translation: 用于内燃机的可变凸轮轴定时系统通过控制同步带的路径来改变进气凸轮轴和排气凸轮轴之间的相对角位置。 第一和第二空转臂各自具有连接到其上的惰轮，通过可操作地连接到电动步进电机的一对定位凸轮独立地围绕公共枢转点枢转。 电动机由电子控制单元控制，该电子控制单元接收指示发动机操作特性的信号，并且通过查找表对定位凸轮进行步进，定位凸轮又使惰轮枢转，以使进气凸轮轴相对于排气凸轮轴旋转，从而改变进气门 定时。

    Internal combustion engine and cam drive mechanism therefor
    10.
    发明授权
    Internal combustion engine and cam drive mechanism therefor 失效
    内燃机及凸轮驱动机构

    公开(公告)号：US4616606A

    公开(公告)日：1986-10-14

    申请号：US822675

    申请日：1986-01-22

    Applicant: Thomas T. Ma

    Inventor： Thomas T. Ma

    IPC: F01L1/34 ,  F01L1/348 ,  F01L1/352 ,  F01L1/356 ,  F02B75/02

    CPC classification number: F01L1/348 ,  F01L1/024 ,  F01L1/352 ,  F01L1/356 ,  F02B2075/027

    Abstract: An internal combustion engine has n member of cylinders, a piston in each cylinder connected to a crankshaft (2), each piston being in phase or out of phase with the others by A.degree. or a multiple thereof (A=720/n), cams for actuating inlet and exhaust valves to each cylinder, and a cam drive mechanism (5) which rotates the cams in phased relationship with the crankshaft (2) to open the valves in sequence for a desired angle of rotation of the crankshaft. The cam drive mechanism also includes means for combining the rotational movement of the cams with a phased oscillatory movement of the camshaft (3) and cams of variable amplitude about the axis of rotation at a frequency f times the crankshaft frequency so that over the period which the valves are opened and/or their timings variable, f has the following values:f=2n when the number of cylinders n=1;f=n or n/2 when n=2;and f=n/2 when n=3 or more. The selection of the frequency of the oscillations allows all the cams to be mounted on the same camshaft.

    Abstract translation: 内燃机具有n个气缸，每个气缸中的活塞连接到曲轴（2），每个活塞与A DEG或其倍数（A = 720 / n）相位或异相， 用于将入口和排气阀致动到每个气缸的凸轮;以及凸轮驱动机构（5），所述凸轮驱动机构（5）使所述凸轮与所述曲轴（2）定相关系旋转，以依次打开所述阀，以达到所述曲轴的期望的旋转角度。 凸轮驱动机构还包括用于将凸轮的旋转运动与凸轮轴（3）的相位振荡运动和围绕旋转轴线的可变振幅的凸轮以相对于曲轴频率f的频率组合的装置，使得在 阀被打开和/或其定时可变，f具有以下值：当缸数n = 1时，f = 2n; 当n = 2时，f = n或n / 2; 当n = 3以上时，f = n / 2。 振荡频率的选择允许所有凸轮安装在相同的凸轮轴上。

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