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91. 发明申请

WO2020072862A1 VARIABLE LENGTH PISTON ASSEMBLIES FOR ENGINE VALVE ACTUATION SYSTEMS 审中-公开
公开(公告)号：WO2020072862A1
公开(公告)日：2020-04-09
申请号：PCT/US2019/054631
申请日：2019-10-04
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： BALTRUCKI, Justin, D. , FERREIRA, David, M.
IPC分类号： F01L13/00 , F01L13/06
摘要： Variable-length assemblies, including lost motion assemblies eliminate hydraulic or pneumatic working fluids for operation in internal combustion engine valve trains and may be integrated into valve rocker arm pivots. An example piston and actuating plate are provided with working surfaces that interact when the actuating plate is rotated relative to the piston. The working surfaces include ramped transition portions and may include upper and lower flat portions. A shallow ramp angle prevents counter-rotation of the actuating plate under load. Actuating assemblies include an actuating solenoid includes a plunger that engages and pivots the actuating arm to cause rotation of the actuating plate relative to the piston and changes the state of the lost motion assembly from an "off state, where motion may be absorbed, to an "on" state where the lost motion assembly is rigid and does not absorb motion.

92. 发明申请

WO2020055924A1 LOST MOTION VARIABLE VALVE ACTUATION SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2020055924A1
公开(公告)日：2020-03-19
申请号：PCT/US2019/050485
申请日：2019-09-10
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： SCHWOERER, John, A. , GRON, G., Michael, Jr. , MOORE, Jacob, M.
IPC分类号： F01L1/255
摘要： A compact, modular, lost motion variable valve actuation assembly includes a dry start hydraulic circuit to enable quick priming of a lost motion master-slave circuit from a dry start reservoir to the master piston chamber during engine start. Motion of the master piston on engine startup may draw in fluid from the dry start hydraulic circuit. The dry start components may be integrated into a compact modular rocker shaft pedestal package suitable for retrofit on existing engine head assemblies. The master piston may include a push tube interface that includes a deep push tube cavity and lubrication capabilities in the master piston that provides for improved wear, stability, easy installation and alignment. The slave piston may be provided with a valve catch to reduce valve closing velocity during cycles involving lost-motion.

93. 发明申请

WO2020018601A9 SYSTEMS AND METHODS FOR COMBINED ENGINE BRAKING AND LOST MOTION EXHAUST VALVE OPENING 审中-公开
公开(公告)号：WO2020018601A9
公开(公告)日：2020-01-23
申请号：PCT/US2019/042090
申请日：2019-07-16
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： BALTRUCKI, Justin, D. , FERREIRA, David, M.
IPC分类号： F01L13/00 , F01L13/06 , F02D13/04
摘要： A combined dedicated braking and EE VO lost motion valve actuation systems for internal combustion engines provide subsystems for braking events and EE VO events on one or more cylinders. Various control strategies may utilize braking and EE VO capabilities to module one or more engine parameters, including after treatment temperature and engine load.

94. 发明申请

WO2019094846A1 LASH ADJUSTMENT IN LOST MOTION ENGINE SYSTEMS 审中-公开
公开(公告)号：WO2019094846A1
公开(公告)日：2019-05-16
申请号：PCT/US2018/060225
申请日：2018-11-10
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： FERREIRA, David M. , ROBERTS, Gabriel S. , BALTRUCKI, Justin D.
IPC分类号： F01L1/24 , F01L1/18 , F01L1/08
摘要： Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HL A jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.

95. 发明申请

WO2019028428A1 SYSTEMS AND METHODS FOR COUNTER FLOW MANAGEMENT AND VALVE MOTION SEQUENCING IN ENHANCED ENGINE BRAKING 审中-公开
公开(公告)号：WO2019028428A1
公开(公告)日：2019-02-07
申请号：PCT/US2018/045268
申请日：2018-08-03
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： LILLY, Ryan , ALEXANDRU, Matei , ROBERTS, Gabriel S.
IPC分类号： F01L13/00 , F02D13/04
摘要： Systems and methods for managing excessive intake flow path pressure and counter flow are implemented to support enhanced engine braking applications, such as 2-stroke or 1.5-stroke engine braking implementations where the intake flow path may be exposed to excessive transient pressures in the combustion chamber during activation or deactivation of an engine brake. Intake throttle, exhaust gas recirculation (EGR) valve, intake manifold blow-off valve, compressor bypass valve, exhaust throttle, turbocharger geometry or turbocharger waste gate may be controlled to effectuate counter flow management separately or in combination. Excessive transient conditions may also be prevented or managed by sequential valve motion in which brake motion activation occurs first and then exhaust valve main event deactivation occurs second. Delay between brake activation and main event deactivation may be facilitated using mechanical and/or hydraulic implements as well as electronically.

96. 发明申请

WO2017117073A1 METHOD AND APPARATUS FOR DETERMINING EXHAUST BRAKE FAILURE 审中-公开
标题翻译：确定排气制动故障的方法和设备
公开(公告)号：WO2017117073A1
公开(公告)日：2017-07-06
申请号：PCT/US2016/068604
申请日：2016-12-25
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： LILLY, Ryan
IPC分类号： F02D9/06 , F02D13/04 , F02D41/22 , F02D41/24
CPC分类号： F02D9/06 , F02D13/04 , F02D41/1448 , F02D41/22 , Y02T10/40
摘要： A controller of an internal combustion engine receives a request to activate an exhaust brake subsystem and, in response thereto, activates the exhaust braking subsystem. The controller thereafter determines that at least one parameter of the exhaust system, an intake subsystem or both compares unfavorably with at least one threshold. When the at least one parameter compares unfavorably with the at least one threshold, the controller determines that the exhaust braking subsystem has failed. In embodiments, the determination that the at least one parameter compares unfavorably with the at least one threshold comprises a determination that backpressure in the exhaust system is lower than a backpressure threshold and/or a determination that boost pressure in the intake subsystem is higher than a threshold.
摘要翻译：内燃机的控制器接收到启动排气制动器子系统的请求，并且响应于此，激活排气制动子系统。此后，控制器确定排气系统，进气子系统或两者的至少一个参数与至少一个阈值不利地相比较。当所述至少一个参数与所述至少一个阈值比较不合适时，所述控制器确定所述排气制动子系统已经失效。在实施例中，确定所述至少一个参数不利地与所述至少一个阈值进行比较包括确定排气系统中的背压低于背压阈值和/或确定进气子系统中的增压压力高于阈值。

97. 发明申请

WO2016011113A1 SYSTEM COMPRISING AN ACCUMULATOR UPSTREAM OF A LOST MOTION COMPONENT IN A VALVE BRIDGE 审中-公开
标题翻译：包含阀门中运动失效部件的蓄能器上升装置的系统
公开(公告)号：WO2016011113A1
公开(公告)日：2016-01-21
申请号：PCT/US2015/040502
申请日：2015-07-15
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： BALTRUCKI, Justin , GRON, G. Michael , LU, Biao
IPC分类号： F01L13/00 , F01L9/02 , F01L1/18
CPC分类号： F01L1/146 , F01L1/18 , F01L1/181 , F01L1/20 , F01L1/26 , F01L1/46 , F01L9/02 , F01L13/06 , F01L13/065 , F01L2800/10
摘要： Systems for actuating at least two engine valves comprise a valve bridge operatively connected to the at least two engine valves and having a hydraulically-actuated lost motion component. The lost motion component comprises a lost motion check valve disposed therein. A rocker arm has a motion receiving end configured to receive valve actuation motions from a valve actuation motion source and a motion imparting end for conveying the valve actuation motions and hydraulic fluid to the lost motion component. The rocker arm is in fluid communication with a hydraulic fluid supply. The systems also comprise an accumulator in fluid communication with the hydraulic fluid supply and disposed upstream of the lost motion check valve. In all embodiments, a fluid supply check valve may be disposed upstream of the accumulator and configured to prevent flow of hydraulic fluid from the accumulator back to the hydraulic fluid supply.
摘要翻译：用于致动至少两个发动机阀的系统包括可操作地连接到所述至少两个发动机阀并具有液压致动的空转部件的阀桥。迷失运动部件包括设置在其中的空动止回阀。摇臂具有运动接收端，其构造成从阀致动运动源和运动施加端接收阀致动运动，用于将阀致动运动和液压流体输送到运动部件。摇臂与液压油供应流体连通。该系统还包括与液压流体供应流体连通并设置在运动中止回阀上游的蓄能器。在所有实施例中，流体供应止回阀可以设置在蓄能器的上游，并且被配置为防止液压流体从蓄能器流向液压流体供应。

98. 发明申请

WO2014134146A1 INTRA-CYLINDER AUXILIARY ACTUATION OF ENGINE VALVES THROUGH SELECTIVE DISCONTINUATION OF MAIN VALVE EVENTS 审中-公开
标题翻译：发动机阀门通过选择性停止主阀事件辅助启动
公开(公告)号：WO2014134146A1
公开(公告)日：2014-09-04
申请号：PCT/US2014/018633
申请日：2014-02-26
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： JANAK, Robb , GRON, Michael, C.
IPC分类号： F01L13/06
CPC分类号： F02D13/0203 , F01L1/08 , F01L9/021 , F01L9/025 , F01L13/06 , F01L13/065 , F01L2800/10 , Y02T10/18
摘要： A third motion transfer mechanism transfers valve actuation motion from a second motion source to a first engine valve. A motion decoupler is configured to selectively discontinue the transfer of motion from a first motion transfer mechanism to the first engine valve. Furthermore, a reset mechanism is configured to selectively discontinue, based on operation of a second motion transfer mechanism, the transfer of motion from the third motion transfer mechanism to the first engine valve. The third motion transfer mechanism may comprise a master piston and a slave piston in fluid communication with each other via a hydraulic circuit, the master piston being configured to receive motion from the second motion source and the slave piston being configured to transfer motion to the first engine valve.
摘要翻译：第三运动传递机构将阀致动运动从第二运动源传递到第一发动机阀。运动解耦器构造成选择性地中止从第一运动传递机构到第一发动机气门的运动传递。此外，复位机构被配置为基于第二运动传递机构的操作来选择性地停止从第三运动传送机构到第一发动机阀的运动传递。第三运动传递机构可以包括主活塞和从动活塞，其经由液压回路彼此流体连通，主活塞构造成接收来自第二运动源的运动，从动活塞构造成将运动传递到第一运动发动机气门。

99. 发明申请

WO2014130991A1 INTEGRATED MASTER-SLAVE PISTONS FOR ACTUATING ENGINE VALVES 审中-公开
标题翻译：用于致动发动机阀门的主动主动作
公开(公告)号：WO2014130991A1
公开(公告)日：2014-08-28
申请号：PCT/US2014/018201
申请日：2014-02-25
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： ROBERTS, Gabriel , FUCHS, Neil , BALTRUCKI, Justin
IPC分类号： F01L1/04 , F01L1/18 , F01L9/02
CPC分类号： F01L1/181 , F01L1/08 , F01L1/267 , F01L13/0036 , F01L13/06 , F01L13/065 , F01L2001/186 , F01L2105/00
摘要： An apparatus for actuating first and second engine valves comprises a rocker arm that receives motion from primary and auxiliary valve actuation motion sources at a motion receiving end of the rocker arm. A master piston residing in a master piston bore in the rocker arm is configured to received motion from the auxiliary valve actuation motion source. A slave piston residing in a slave piston bore in the rocker arm is configured to provide auxiliary valve actuation motion to the first engine valve. A hydraulic circuit is provided in the rocker arm connecting the master piston bore and the slave piston bore, and a check valve is disposed within the rocker arm, configured to supply hydraulic fluid to the hydraulic circuit. The apparatus may be incorporated into a system comprising a rocker arm shaft and the primary and secondary valve actuation motion sources, such as an internal combustion engine.
摘要翻译：用于致动第一和第二发动机阀的装置包括摇臂，该摇臂在摇臂的运动接收端处接收来自主阀和辅助阀致动运动源的运动。驻留在摇臂中的主活塞孔中的主活塞构造成从辅助阀致动运动源接收运动。驻留在摇臂中的从动活塞孔中的从动活塞构造成为第一发动机气门提供辅助阀致动运动。液压回路设置在连接主活塞孔和从动活塞孔的摇臂中，止回阀设置在摇臂内，构造成向液压回路供给液压流体。该装置可以结合到包括摇臂轴和主阀和次阀致动运动源（诸如内燃机）的系统中。

100. 发明申请

WO2014100185A1 ROCKER LATCH FOR CONTROLLING ENGINE VALVE ACTUATION 审中-公开
标题翻译：用于控制发动机阀门执行的摇臂锁
公开(公告)号：WO2014100185A1
公开(公告)日：2014-06-26
申请号：PCT/US2013/076136
申请日：2013-12-18
申请人： JACOBS VEHICLE SYSTEMS, INC.
发明人： GRON, G., Michael Jr. , BALTRUCKI, Justin, Damien , FUCHS, Neil , LESTER, John, J.
IPC分类号： F01L1/18
CPC分类号： F01L13/08 , F01L1/181 , F01L13/0015 , F01L13/06 , F01L2001/186 , F01L2013/0094 , F01L2760/001 , F01L2800/01 , F01L2800/03 , F01L2810/03 , F01L2820/031 , F01L2820/034 , F02D13/0246 , F02D2013/0292 , F02M31/042 , Y02T10/126
摘要： Engine valve actuation systems and methods used to decompress an engine cylinder during engine start-up, shut-down, and for bleeder braking are disclosed. An exemplary system may include a rocker arm pivotally mounted on a rocker shaft, and a structure mounted adjacent to the rocker arm in a fixed position relative to the rocker arm. A latch piston may be slidably disposed between the rocker arm and the structure. The latch piston may be selectively extended to engage both the rocker arm and structure to limit the pivotal motion of the rocker arm and maintain the engine valves in an open condition.
摘要翻译：公开了在发动机起动，关闭和泄放制动期间用于减压发动机气缸的发动机气门致动系统和方法。示例性系统可以包括枢转地安装在摇臂轴上的摇臂和相对于摇臂相对于摇臂相对固定位置安装的结构。闩锁活塞可以可滑动地设置在摇臂和结构之间。闩锁活塞可以选择性地延伸以接合摇臂和结构，以限制摇臂的枢转运动并将发动机气门维持在打开状态。

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