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公开(公告)号：US4576762A
公开(公告)日：1986-03-18
申请号：US710399
申请日：1985-03-11
IPC分类号： F02M19/12
CPC分类号： F02M19/128 , F02M19/12 , Y10T74/20534
摘要： A throttle return spring assembly having inner and outer torsion springs contained between end housings is preassembled and then mounted as a unit about a throttle body shaft.
摘要翻译： 预先组装具有容纳在端部壳体之间的内部和外部扭转弹簧的节气门复位弹簧组件，然后作为围绕节气门体轴的单元安装。
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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
IPC分类号： F01L1/344
CPC分类号： F01L1/34406 , Y10T29/49231 , Y10T29/49826 , Y10T74/2102
摘要： 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.
摘要翻译： 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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公开(公告)号：US5033327A
公开(公告)日：1991-07-23
申请号：US418018
申请日：1989-10-10
申请人： Thomas H. Lichti , Ronald A. Waydelis , Michael J. Niemiec , Mark A. Shost , Kenneth A. Kovacevich , Thomas G. Elphick
发明人： Thomas H. Lichti , Ronald A. Waydelis , Michael J. Niemiec , Mark A. Shost , Kenneth A. Kovacevich , Thomas G. Elphick
CPC分类号： F16D3/10 , F01L1/344 , F02B2275/18 , Y10T74/2101 , Y10T74/2102
摘要： A phase adjuster for engine camshafts and the like includes in a preferred embodiment a sprocket driving a camshaft attached hub through paired wedge packs that transfer torque and maintain a lash free connection. A plunger actuated by engine oil pressure and coating drive springs axially move alternate active wedges to oppositely vary the arcuate lengths of the wedge packs and thereby change the phase angle between the sprocket and camshaft. A three way valve shuts off pressure oil flow except when needed to advance the plunger, thus minimizing oil flow requirements.
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