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公开(公告)号：US5588404A
公开(公告)日：1996-12-31
申请号：US353776
申请日：1994-12-12
Applicant: Thomas H. Lichti , Daniel R. Cuatt , Mark A. Shost , Ronald A. Waydelis , Michael J. Fox
Inventor： Thomas H. Lichti , Daniel R. Cuatt , Mark A. Shost , Ronald A. Waydelis , Michael J. Fox
IPC: F01L1/344
CPC classification number: F01L1/34406 , Y10T29/49231 , Y10T29/49826 , Y10T74/2102
Abstract: A variable cam phaser has drive and driven members connected by helical splines of an annular phase control piston and a lash control piston, axial motion of which varies the angular phase relation between the drive and driven members. A single wave spring received in a groove in one of the pistons biases them apart to take up lash in the splines. A return spring biases the phase control piston to an initial phase setting. Pre-timing of the members is provided for by a driven (or drive) member comprising two components, a hub flange that supports the other member and a splined hub carried by and initially rotatable on a tubular protrusion of the hub flange. After assembly of the phasing mechanism, the hub is rotated on the hub flange to pre-time the initial phasing of the members. An end of the tubular protrusion is then deformed into a flange engaging an annular shoulder on the hub to lock the hub and hub flange members together and maintain the pre-timing. An annular cover is then installed and retained by a retaining ring to close a hydraulic pressure chamber and help support the members. Upon assembly to a camshaft, a center bolt clamps the cover, hub and hub flange to the camshaft and relieves the locking means from operational torque loads.
Abstract translation: 可变凸轮移相器具有通过环形相位控制活塞的螺旋花键和间隙控制活塞连接的驱动和驱动构件，其轴向运动改变了驱动构件和被驱动构件之间的角度相位关系。 接收在其中一个活塞中的凹槽中的单波形弹簧将它们分开偏压以在花键中卷起睫毛。 复位弹簧将相位控制活塞偏置到初始相位设置。 构件的预定时由包括两个部件的驱动（或驱动）构件提供，支撑另一个构件的轮毂凸缘和由轮毂凸缘的管状突起承载并最初可旋转的花键毂。 在相位机构的组装之后，轮毂在轮毂凸缘上旋转以预先准备构件的初始定相。 然后，管状突起的端部变形成与轮毂上的环形肩部接合的凸缘，以将轮毂和轮毂凸缘构件锁定在一起并保持预定时。 然后通过保持环安装并保持环形盖以关闭液压室并帮助支撑构件。 在组装到凸轮轴上时，中心螺栓将盖，轮毂和轮毂凸缘夹紧到凸轮轴，并且使锁定装置免于操作扭矩负载。
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32.发明授权
公开(公告)号：US5558053A
公开(公告)日：1996-09-24
申请号：US321830
申请日：1994-10-06
Applicant: Renzo Tortul
Inventor： Renzo Tortul
IPC: F01L1/344
CPC classification number: F01L1/34406 , F01L2810/04
Abstract: A timing variator disposed between a crankshaft and a camshaft of an internal combustion engine includes a body portion connected to the crankshaft and a hub connected to the camshaft. A piston is interposed between the body and the hub and coupled thereto by helical gearing for changing the angular position of the body relative to the hub. A torsion member is connected between the body and the hub for producing a torque therebetween and/or a braking device is disposed between the body and the hub to brake relative movement therebetween.
Abstract translation: 设置在内燃机的曲轴和凸轮轴之间的定时变换器包括连接到曲轴的主体部分和连接到凸轮轴的轮毂。 活塞被插入在主体和轮毂之间并且通过螺旋齿轮传动装置联接到其上，以改变主体相对于轮毂的角位置。 扭转构件连接在主体和轮毂之间以在其间产生扭矩和/或制动装置设置在主体和轮毂之间以制动其间的相对运动。
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公开(公告)号：US5529034A
公开(公告)日：1996-06-25
申请号：US334709
申请日：1994-11-04
Applicant: Shigeru Sone , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
Inventor： Shigeru Sone , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
CPC classification number: F02D13/0261 , F01L1/34406 , F02D13/0215 , F02D41/221 , F01L2001/0537 , F01L2201/00 , F02B1/04 , F02B3/06 , F02D2041/001 , Y02T10/18 , Y02T10/40
Abstract: A cam shaft of an engine is provided with a timing change mechanism (VVT) which is driven by hydraulic pressure to alter the timing of a intake valve (valve timing). This VVT is controlled to change the valve overlap of the intake valve and an exhaust valve, thereby adjusting the suction and exhaust in and from a combustion chamber. To control the VVT, an electronic control unit (ECU) computes a target value for the valve timing in accordance with the running condition of the engine and controls the supply of the hydraulic pressure to the VVT based on the target value. The ECU determines the level of the actual hydraulic pressure given to the VVT. When the actual valve timing does not lie in a predetermined range with respect to the target value, the ECU determines that an abnormality has occurred in the VVT, and executes a predetermined fail safe routine. When the hydraulic pressure is equal to or smaller than a reference value, the ECU suppresses WT malfunction determinations.
Abstract translation: 发动机的凸轮轴设置有由液压驱动以改变进气门的正时（气门正时）的定时改变机构（VVT）。 该VVT被控制以改变进气门和排气阀的阀重叠，从而调节来自燃烧室的吸入和排出。 为了控制VVT，电子控制单元（ECU）根据发动机的运行状况计算出阀正时的目标值，并根据目标值控制对VVT的液压供给。 ECU确定给予VVT的实际液压压力水平。 当实际气门正时相对于目标值不在预定范围内时，ECU判定VVT中发生了异常，并执行预定的故障安全程序。 当液压等于或小于参考值时，ECU抑制WT故障确定。
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公开(公告)号：US5517955A
公开(公告)日：1996-05-21
申请号：US457421
申请日：1995-06-01
Applicant: Mamoru Yoshioka
Inventor： Mamoru Yoshioka
CPC classification number: F02D13/0234 , F01L1/34406 , F02D13/0261 , F01L2201/00 , F02D2013/0292 , F02D2041/001 , F02D2041/002 , Y02T10/18
Abstract: A valve timing control device for an internal combustion engine. The device comprises first determination means for determining a first optimal value of the valve overlap period in the current engine operating condition, on the basis of the current engine speed and load, second determination means for determining a second optimal value of the valve overlap period in the current engine operating condition by reducing the first optimal value when the engine has not warmed up, and valve overlap period control means for controlling a valve overlap period using the first optimal value when the current degree of opening of the throttle valve is larger than a predetermined value, even if the engine has not warmed up. A back-flow of exhaust gas does not occur when the degree of the throttle valve is relatively large so that the valve overlap period at this time is made larger and a higher engine torque can be obtained to increase the trapping efficiency and the scavenging efficiency, even if the engine has not warmed up.
Abstract translation: 一种用于内燃机的气门正时控制装置。 该设备包括：第一确定装置，用于根据当前发动机转速和负载确定当前发动机工作状态下的气门重叠周期的第一最佳值;第二确定装置，用于确定阀重叠周期的第二最佳值， 当发动机未加热时通过减小第一最佳值的当前发动机运转状态;以及当重合节流阀的当前开度大于a时，利用第一最优值控制气门重叠周期的气门重叠时段控制装置 即使发动机没有升温也是预定值。 当节流阀的程度相对较大时，不会发生废气的回流，从而使得此时的阀重叠时间更大，并且可以获得更高的发动机转矩以提高捕集效率和清除效率， 即使发动机没有升温。
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公开(公告)号：US5483930A
公开(公告)日：1996-01-16
申请号：US386908
申请日：1995-02-08
Applicant: Yoshihito Moriya , Akihiko Takenaka , Michio Adachi
Inventor： Yoshihito Moriya , Akihiko Takenaka , Michio Adachi
CPC classification number: F01L1/34406 , Y10T74/2102
Abstract: In a valve timing control device, when a camshaft is retained relative to a timing pulley, a hydraulic piston is applied with a force which moves it in a direction toward an advancing-side hydraulic chamber (i.e., in the direction to vary a valve timing to a delaying side) owing to reaction of the driving torque of the camshaft. This force causes fluid to leak out of the advancing-side hydraulic chamber, and the hydraulic piston is liable to move toward this hydraulic chamber. However, fluid of an amount corresponding to an amount of this leakage is supplied to the advancing-side hydraulic chamber by way of a control valve. Also, discharge of fluid from a delaying-side hydraulic chamber via the control valve is stopped. Thus, the movement of the hydraulic piston toward the advancing-side hydraulic chamber when the hydraulic piston is retained at a desired position is prevented. Therefore, the hydraulic piston can be stably retained at the desired position, and a desired valve timing can be maintained.
Abstract translation: 在气门正时控制装置中，当凸轮轴相对于正时滑轮保持时，液压活塞被施加一个力，该力使其沿着前进侧液压室的方向（即，在改变气门正时的方向 由于凸轮轴的驱动转矩的反作用而导致延迟侧）。 该力导致流体从前进液压室泄漏出来，液压活塞易于向该液压室移动。 然而，通过控制阀将对应于该泄漏量的量的流体提供给前进侧液压室。 而且，通过控制阀从延迟侧液压室排出的液体停止。 因此，防止当液压活塞保持在期望位置时液压活塞向前进侧液压室的移动。 因此，可以将液压活塞稳定地保持在期望的位置，并且可以保持期望的气门正时。
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Patent Agency Ranking
公开(公告)号：US5447126A
公开(公告)日：1995-09-05
申请号：US343992
申请日：1994-11-18
Applicant: Takehisa Kondoh , Akio Akasaka , Seiji Suga , Noboru Egashira , Hiroaki Imai
Inventor： Takehisa Kondoh , Akio Akasaka , Seiji Suga , Noboru Egashira , Hiroaki Imai
CPC classification number: F01L1/34406 , Y10T74/2102
Abstract: A variable cam phaser (VCP) is disclosed in various modifications. The VCP includes a piston responsive to pressure in a fluid chamber having an inlet orifice and a plurality of outlets including a first outlet and a plurality of second outlets. A valve slide is movable to cover said second outlets one after another to pressurize the fluid chamber to displace the piston against a return spring. Outer and inner splined slides are drivingly mated with an internal helical spline of a cylindrical body secured to a sprocket and an external helical spline of a stub shaft secured to a camshaft. The splined slides are disposed between the piston and the return spring. Thus, movement of the piston and splined slides assembly in response to pressurization or depressurization of the fluid chamber advances or retards the valve timing or phase angle of the camshaft relative to the sprocket.
Abstract translation: 在各种修改中公开了可变凸轮相位器（VCP）。 VCP包括响应于具有入口孔的流体室中的压力的活塞和包括第一出口和多个第二出口的多个出口。 阀滑块可移动以一个接一个地覆盖所述第二出口，以加压流体室以使活塞抵靠复位弹簧移位。 外部和内部花键滑块与固定到链轮的圆柱形主体的内部螺旋花键和固定到凸轮轴的短轴的外部螺旋花键驱动配合。 花键滑块设置在活塞和复位弹簧之间。 因此，响应于流体室的加压或减压，活塞和花键滑块组件的移动推进或延迟凸轮轴相对于链轮的气门正时或相位角。
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37.发明授权
公开(公告)号：US5426992A
公开(公告)日：1995-06-27
申请号：US69002
申请日：1993-05-28
Applicant: Yasushi Morii , Michio Adachi
Inventor： Yasushi Morii , Michio Adachi
CPC classification number: F01L1/34406 , F16H55/18 , F02B2275/18 , Y10S474/90 , Y10T74/19623 , Y10T74/2102
Abstract: A non-backlash toothed wheel mechanism comprises, an internal gear, and an external gear mating with the internal gear wherein at least one of the internal gear and the external gear has a circumferentially arranged gear teeth array and at least two gear parts each of which has gear teeth forming a part of the circumferentially arranged gear teeth array, a positional relation between the gear parts is changeable, and the mechanism further comprises elastic means for urging one of the two gear parts relatively to another one of the two gear parts to change the positional relation between the gear parts so that each of the gear parts mates with another one of the internal gear and the external gear to reduce a backlash between the one of the internal gear and the external gear and the another one thereof.
Abstract translation: 非间隙齿轮机构包括内齿轮和与内齿轮配合的外齿轮，其中内齿轮和外齿轮中的至少一个具有周向布置的齿轮齿阵列和至少两个齿轮部分，每个齿轮部分 具有形成周向布置的齿轮齿阵列的一部分的齿轮齿，齿轮部分之间的位置关系是可变的，并且该机构还包括弹性装置，用于相对于两个齿轮部件中的另一个相对于两个齿轮部件之一推动以改变 齿轮部分之间的位置关系使得每个齿轮部分与内齿轮和外齿轮中的另一个配合，以减少内齿轮和外齿轮中的一个与另一个齿轮之间的间隙。
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公开(公告)号：US5400747A
公开(公告)日：1995-03-28
申请号：US158737
申请日：1993-11-30
Applicant: Taro Tabata , Masaaki Shinojima
Inventor： Taro Tabata , Masaaki Shinojima
CPC classification number: F16D3/10 , F01L1/34406 , F02D13/0238 , F02D13/0261 , F01L2001/34443 , F01L2201/00 , F02D2041/001 , Y02T10/18
Abstract: A valve timing control apparatus in an internal combustion engine, designed to improve its controllability by deciding a control value by taking into consideration the number of the internal combustion engine and the direction to which the valve timing is to be changed, said valve timing control apparatus which changes the valve timing by changing the rotational phase of the camshaft with respect to the crankshaft comprising: means for detecting the operating condition of the internal combustion engine; means for deciding an optimum timing of the valve from the operating condition detected; means for grasping the present timing of the valve by detecting a phase difference of the camshaft from the crankshaft; and means for causing the present timing to become the optimum timing, wherein there is further provided means for discriminating the direction (advance, retard) to which the valve timing is to be changed from a phase difference between the present timing and the optimum timing in order that the change of direction is reflected in the decision of the control value.
Abstract translation: 一种内燃机中的气门正时控制装置，其特征在于，所述气门正时控制装置被设计为通过考虑内燃机的数量和气门正时的变化方向决定控制值来提高其可控性，所述气门正时控制装置 其通过改变凸轮轴相对于曲轴的旋转相位来改变气门正时，包括：用于检测内燃机的运行状态的装置; 用于从所检测的操作条件确定所述阀的最佳定时的装置; 通过检测凸轮轴与曲轴的相位差来掌握阀的当前正时的装置; 以及用于使当前定时成为最佳定时的装置，其中进一步提供了用于从当前定时和最佳定时之间的相位差鉴别气门正时要改变的方向（提前，延迟）的装置， 指示方向的变化反映在控制值的决定中。
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公开(公告)号：US5341777A
公开(公告)日：1994-08-30
申请号：US10884
申请日：1993-01-29
Applicant: Yasushi Miura , Kongo Aoki
Inventor： Yasushi Miura , Kongo Aoki
CPC classification number: F01L1/34406 , F01L2810/04
Abstract: A valve operation control system for an internal combustion engine having a cam-shaft and a crank-shaft has an adjusting device for adjusting a phase difference between the cam-shaft and the crank-shaft by being supplied with hydraulic pressure, a driving device integrated with the adjusting device and having an oil pump driven by the cam-shaft and a hydraulic pressure line between the oil pump and the adjusting device, and a hydraulic pressure control device disposed in the hydraulic pressure line for regulating the hydraulic pressure to be supplied to the adjusting device.
Abstract translation: 具有凸轮轴和曲轴的内燃机的阀操作控制系统具有调节装置，用于通过供给液压来调节凸轮轴与曲轴之间的相位差，驱动装置集成 具有调节装置，具有由凸轮轴驱动的油泵和油泵与调节装置之间的液压管线;以及液压控制装置，其配置在液压管路中，用于调节供给到 调节装置。
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公开(公告)号：US5275138A
公开(公告)日：1994-01-04
申请号：US010843
申请日：1993-01-29
Applicant: Koji Hotta , Kongo Aoki
Inventor： Koji Hotta , Kongo Aoki
CPC classification number: F01L13/0047 , F01L1/024 , F01L1/34406 , F01L2001/34483 , F01L2810/04
Abstract: For minimizing a diameter of an apparatus which is located on the cam-shaft and changes a phase between two cam-shafts, a variable valve timing system in an engine having first and second cam-shafts is comprised of a first gear rotatably supported on the first cam-shaft, a second gear fixed to the second cam-shaft, and geared with the first gear to transmit torque to the second cam-shaft, a first device for transmitting torque from the first cam-shaft to the first gear, and for rotating the first gear toward a first position, the first device being located on one end of the first cam-shaft, and a second means for rotating the first gear in a second direction opposite the first direction, toward a second position, the second device being located on one end of the second cam-shaft.
Abstract translation: 为了使位于凸轮轴上的装置的直径最小化并且改变两个凸轮轴之间的相位，具有第一和第二凸轮轴的发动机中的可变气门正时系统包括可旋转地支撑在该凸轮轴上的第一齿轮 第一凸轮轴，固定到第二凸轮轴的第二齿轮，并且与第一齿轮啮合以将扭矩传递到第二凸轮轴;第一装置，用于将扭矩从第一凸轮轴传递到第一齿轮;以及 用于使第一齿轮朝向第一位置旋转，第一装置位于第一凸轮轴的一端，以及第二装置，用于沿与第一方向相反的第二方向朝向第二位置旋转第一齿轮，第二装置 装置位于第二凸轮轴的一端。
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