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公开(公告)号：EP3356656A1
公开(公告)日：2018-08-08
申请号：EP16852592.1
申请日：2016-09-29
发明人： YANG, Dong , JO, Peter , BALTRUCKI, Justin, D.
CPC分类号： F01L13/085 , F01L1/08 , F01L1/24 , F01L13/06 , F01L13/065 , F01L2800/10 , F01L2800/19
摘要： A system for actuating engine valve comprises a main valve actuation motion source configured to supply main valve actuation motions to the at least one engine valve via a main motion load path, and an auxiliary valve actuation motion source separate from the main valve actuation motion source and configured to supply complementary auxiliary valve actuation motions to the at least one engine valve via an auxiliary motion load path. A lost motion component is configured, in one state, to maintain lash between the auxiliary valve actuation motion source and the auxiliary motion load path or within the auxiliary motion load path and, in another state, to take up this lash. The auxiliary valve actuation motion source is further configured to supply at least one lash-prevention valve actuation motion that substantially matches at least one of the main valve actuation motions.
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公开(公告)号：EP3147540A2
公开(公告)日：2017-03-29
申请号：EP16182373.7
申请日：2016-08-02
CPC分类号： F16H7/08 , F01L1/02 , F01L1/022 , F01L1/042 , F01L1/22 , F02B61/02 , F02F7/0021 , F02F2007/0041 , F16H7/06 , F16H7/18 , F16H2007/0872 , F16H2007/0893
摘要： [Object]
To provide a compact power unit while securing a sufficient clearance between a stud bolt and a fixing shaft of a cam chain tensioner pivot mechanism, and surely supporting a cam chain tensioner guide.
[Solving Means]
In a power unit including a crankshaft 30, a stud bolt 26 configured to fix a crankcase 22 and a cylinder body 23 to each other, a cam chain 52, a cam chain tensioner mechanism 60 including a cam chain tensioner guide 61, and a cam chain tensioner pivot mechanism 70 including a pivot plate 71, a fixing shaft 72, and a swinging shaft 73, the fixing shaft 72 and the swinging shaft 73 are arranged so as to straddle the axis L2 of the stud bolt 26 as viewed in the axial direction of the crankshaft 30.摘要翻译： 为了提供紧凑的动力单元，同时确保双头螺栓和凸轮链张紧器枢转机构的固定轴之间的足够的间隙，并且可靠地支撑凸轮链张紧器引导件。 解决方案在包括曲轴30的动力单元中，将曲轴箱22和缸体23彼此固定的双头螺栓26，凸轮链52，凸轮链张紧器机构60，凸轮链条张紧器机构60包括凸轮链张紧器引导件61 以及包括枢转板71，固定轴72和摆动轴73的凸轮链张紧器枢转机构70，固定轴72和摆动轴73被布置成跨越双头螺栓26的轴线L2，如 从曲轴30的轴向观察。
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公开(公告)号：EP2961947A4
公开(公告)日：2016-09-28
申请号：EP14756458
申请日：2014-03-03
申请人： EATON CORP
发明人： SPOOR ANTHONY L , SHEREN JAMES R
CPC分类号： F01L1/2405 , F01L1/185 , F01L13/0036 , F01L2001/186 , F01L2103/00
摘要： A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines is disclosed. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy those rocker arm assemblies manufactured under the previous methods.
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公开(公告)号：EP2961947A1
公开(公告)日：2016-01-06
申请号：EP14756458.7
申请日：2014-03-03
申请人： Eaton Corporation
CPC分类号： F01L1/2405 , F01L1/185 , F01L13/0036 , F01L2001/186 , F01L2103/00
摘要： A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines is disclosed. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy those rocker arm assemblies manufactured under the previous methods.
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35.发明公开
公开(公告)号：EP2625393A4
公开(公告)日：2014-04-30
申请号：EP11831730
申请日：2011-10-07
申请人： PINNACLE ENGINES INC
IPC分类号： F01L5/06 , F01B7/02 , F01L1/08 , F01L1/18 , F01L1/22 , F01L1/24 , F01L1/30 , F01L5/16 , F01L7/04 , F01L13/00 , F02B25/08 , F02B75/04 , F02B75/28 , F02D15/00
CPC分类号： F01L1/30 , F01L1/08 , F01L1/181 , F01L1/22 , F01L1/2405 , F01L5/06 , F01L7/04 , F01L2001/186 , F02B75/282
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公开(公告)号：EP1526254A3
公开(公告)日：2010-02-24
申请号：EP04025221.5
申请日：2004-10-22
申请人： NTN Corporation
发明人： Maeno, Eiji , Yamamoto, Ken
摘要： A lash adjuster (A) in a valve actuator includes a lifter body (11) having an end plate (12) having its top surface in contact with a cam (1) and formed with a threaded hole (15) in its bottom surface. An adjuster screw (16) is inserted in the threaded hole (15) with its external thread (16a) in engagement with the internal thread (15a) of the threaded hole (15). An elastic member (17) is mounted in the threaded hole (15) over the adjuster screw (16) to bias the adjuster screw (16) axially downward. Both of the threads (15a,16a) have a sawtooth-shaped section with its pressure flank having a greater flank angle than its clearance flank. One of the pressure flanks is formed with a satin-finished rugged surface which is covered by a hard film which is non-reactive with a low-friction oil. With this arrangement, even after the threads have become worn, the friction coefficient between the thread surfaces is kept substantially constant.
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公开(公告)号：EP1445431B1
公开(公告)日：2006-04-26
申请号：EP04002964.7
申请日：2004-02-10
CPC分类号： F01L1/143 , F01L1/22 , F01L2101/00
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公开(公告)号：EP1378741A1
公开(公告)日：2004-01-07
申请号：EP03291604.1
申请日：2003-06-30
发明人： Hathaway, Thomas , Rice, Edwin E.
CPC分类号： F01L1/20 , F01L1/146 , F01L1/181 , F01L2103/01 , Y10T74/1828
摘要： The invention relates to a tool comprising :
a valve lash fastener-driver;
a valve lash adjusting member-driver ;
a valve lash measurer; and
a controller connected to and operably controlling movement of the fastener-driver, member-driver and valve lash measurer;
the controller operably adjusting valve lash by selectively energizing and deenergizing the fastener-driver and member-driver; and
the controller operably verifying the actually adjusted valve lash in an automatic manner based at least in part on the valve lash measurer output signal.
The invention also relates to a valve lash setting tool and to a method using a tool to set valve lash.摘要翻译： 本发明涉及一种工具，包括：阀襟翼紧固件驱动器; 阀门间隙调节构件驱动器; 阀门间隙测量仪 以及连接到并可操作地控制紧固件驱动器，构件驱动器和阀间隙测量器的运动的控制器; 控制器通过选择性地激励和断电紧固件驱动器和构件驱动器来可操作地调节阀间隙; 并且控制器至少部分地基于阀间隙测量器输出信号以自动方式可操作地验证实际调节的阀间隙。 本发明还涉及一种阀间隙设定工具以及使用工具设置阀间隙的方法。
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公开(公告)号：EP1321632A1
公开(公告)日：2003-06-25
申请号：EP02445176.7
申请日：2002-12-16
申请人： ATLAS COPCO TOOLS AB
IPC分类号： F01L1/22
CPC分类号： F01L1/20 , F01L1/26 , F01L2103/01 , F01L2800/09 , F01L2820/01
摘要： A method and a device for setting the valve lash to a desired value at internal combusion engines, including application of a motor driven coaxial double spindle (22) on each valve adjusting screw (18) and lock nut (19) followed by a number of consecutive operation steps comprising: tightening the adjuster screw (18) of each valve (11;111) to a snug torque level (T s ), open the valve (11;111) by tightening the adjuster screw (18) through a predetermined angle while checking the torque magnitude required therefor, reverse the adjuster screw (18) through an angle exceeding the previous predetermined angle, retighten the adjuster screw (18) to the snug torque level (T s ), reverse the adjuster screw (18) through an angular interval corresponding to the desired valve lash, and tighten the lock nut (19) while holding the adjuster screw (18) stationary.
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公开(公告)号：EP0225758A1
公开(公告)日：1987-06-16
申请号：EP86309124.5
申请日：1986-11-21
发明人： Frost, Derek
摘要： The invention relates to a desmodromic system in which a valve stem (l0) is arranged to be acted upon directly, or by way of rockers, by an opening cam (l8) and a closing cam (l4) rotatable together at constant or varying angular velocity in synchronism with the rotation of the engine crankshaft. A compliance device (l2) is incorporated in the transmission train from the cams (l8,l4) to the valve stem (l0), the compliance device (l2) comprising two members (56,66) resiliently urged away from one another and coupled to one another in such a manner that they can only move apart by a predetermined distance (74).
The compliance device enables the system to operate with no clearance when the valve is open and accommodates valve recession and thermal expansion when the valve is closed.
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