公开(公告)号：US09376941B2

公开(公告)日：2016-06-28

申请号：US13985554

申请日：2011-09-05

申请人： Zhou Yang

发明人： Zhou Yang

IPC分类号： F01L13/06 ,  F01L1/08 ,  F01L1/14 ,  F01L1/18 ,  F01L1/20 ,  F01L1/24 ,  F01L1/26 ,  F01L13/00 ,  F02D13/04

CPC分类号： F01L13/065 ,  F01L1/08 ,  F01L1/146 ,  F01L1/181 ,  F01L1/20 ,  F01L1/24 ,  F01L1/26 ,  F01L13/0031 ,  F01L13/06 ,  F02D13/04

摘要： A method and apparatus for resetting a valve lift for use in an engine brake. A brake piston (160), and a hydraulic fluid passage (214) are arranged within a rocker arm (210) or a valve bridge (400) of an engine. A resetting valve arranged between the rocker arm (210) and the valve bridge (400) is driven by a change in the distance between the rocker arm (210) and the valve bridge (400). When the valve lift of an engine exhaust valve (300) reaches a maximum, a reset fluid passage (219) is opened, the hydraulic pressure within the hydraulic fluid passage is released, the brake piston (160) is reversed by one interval, the motion transmission between a cam (230) and the engine exhaust valve (300) is partially disengaged, and the valve lift of the engine exhaust valve (300) is reduced. Also, during a returning process of the valve lift of the engine exhaust valve (300) after reaching the maximum position, repositioning of the reset valve is used to maintain a supply of pressure within the hydraulic fluid passage, the brake piston (160) is allowed to be positioned at an extended position, and the motion transmission between the cam (230) and the engine exhaust valve (300) is resumed. The apparatus for resetting the valve lift can be integrated within an engine exhaust valve brake, and is structurally simple, convenient to install and to adjust, thereby improving safety and reliability.

摘要翻译： 一种用于复位用于发动机制动器中的气门升程的方法和装置。 制动活塞（160）和液压流体通道（214）布置在发动机的摇臂（210）或阀桥（400）内。 布置在摇臂（210）和阀桥（400）之间的复位阀由摇臂（210）和阀桥（400）之间的距离的变化驱动。 当发动机排气阀（300）的气门升程达到最大值时，复位流体通道（219）打开，液压流体通道内的液压被释放，制动活塞（160）反转一个间隔， 凸轮（230）和发动机排气阀（300）之间的运动传递部分地分离，并且发动机排气阀（300）的气门升程减小。 此外，在达到最大位置之后，在发动机排气阀（300）的气门升程返回过程中，使用复位阀的重新定位来维持液压流体通道内的压力供应，制动活塞（160）为 允许定位在延伸位置，并且恢复凸轮（230）和发动机排气阀（300）之间的运动传递。 用于复位气门升程的装置可以集成在发动机排气阀制动器内，结构简单，安装和调整方便，从而提高安全性和可靠性。

公开(公告)号：US20160146072A1

公开(公告)日：2016-05-26

申请号：US14954413

申请日：2015-11-30

申请人： Jacobs Vehicle Systems, Inc.

发明人： Steven N. ERNEST ,  Darius Mehta

IPC分类号： F01L13/00 ,  F01L13/06 ,  F01L1/08

CPC分类号： F01L13/0036 ,  F01L1/08 ,  F01L1/24 ,  F01L13/06 ,  F02D13/0246 ,  F02D13/0273 ,  F02D13/04 ,  F02D41/006 ,  F02D41/008 ,  F02D41/12 ,  F02D2041/001 ,  Y02T10/47

摘要： A valve actuation system for an internal combustion engine is disclosed. The engine has a first set of cylinders having a first set of exhaust valves and a second set of cylinders having a second set of exhaust valves. The valve actuation system for the exhaust valves includes one or more first cams having a compression-release lobe and a main exhaust lobe adapted to transfer valve actuation motion to the first set of exhaust valves, and one or more second cams having an early exhaust valve opening (EEVO) lobe and a main exhaust lobe adapted to transfer valve actuation motion to the second set of exhaust valves. The valve actuation system may provide any combination of (i) main exhaust valve actuation with or without compression release actuation with (ii) main exhaust valve actuation with or without EEVO for the two sets of cylinders.

摘要翻译： 公开了一种用于内燃机的阀致动系统。 发动机具有具有第一组排气阀的第一组气缸和具有第二组排气阀的第二组气缸。 用于排气阀的阀致动系统包括一个或多个第一凸轮，其具有压缩释放凸角和适于将阀致动运动转移到第一组排气门的主排气凸轮，以及具有早期排气阀的一个或多个第二凸轮 开口（EEVO）凸角和适于将阀致动运动转移到第二组排气阀的主排气杆。 阀致动系统可以提供以下组合：（i）具有或不具有压缩释放致动的主排气阀致动与（ii）具有或不具有用于两组气缸的EEVO的主排气阀致动。

公开(公告)号：US09163534B2

公开(公告)日：2015-10-20

申请号：US14127293

申请日：2011-07-22

申请人： Benjamin Girard ,  Romain Le Forestier

发明人： Benjamin Girard ,  Romain Le Forestier

IPC分类号： F01L1/18 ,  F01L13/06 ,  F01L13/00 ,  F01L13/08 ,  F01L1/46 ,  F02D13/02

CPC分类号： F01L13/06 ,  F01L1/181 ,  F01L1/46 ,  F01L13/0021 ,  F01L13/08 ,  F02D13/0242

摘要： A valve actuation mechanism for an internal combustion engine includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a valve opening actuator of each cylinder, via an activation piston, housed in a bore of the rocker and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly connected to the bore, from a first position to a second position with respect to the rocker, in which a cam follower of the rocker is adapted to read at least one auxiliary valve lift sector of a cam of the camshaft so as to perform an engine operating function. Each rocker includes a check valve adapted to control the fluid pressure raise in the chamber. The valve actuation mechanism includes, for each rocker, a stopper fast with a housing of the engine and adapted to exert, on a member of the rocker, a force for opening a valve independent from the check valve, adapted to release fluid from the chamber when the piston has to be moved from its second position to its first position.

摘要翻译： 用于内燃机的阀致动机构包括由凸轮轴移动的摇臂，每个摇杆适于通过活塞活塞在每个气缸的阀开启致动器的至少一部分上施加阀打开力，活塞活塞容纳在 该摇杆在相对于摇杆从第一位置到第二位置的流体连接到孔的腔室中的流体压力升高的作用下相对于摇杆可移动，其中摇杆的凸轮从动件适于 读取凸轮轴的凸轮的至少一个辅助阀提升扇区，以执行发动机操作功能。 每个摇杆包括适于控制腔室中的流体压力升高的止回阀。 阀致动机构包括用于每个摇杆的止动件，其与发动机的壳体紧贴，并且适于在摇臂的构件上施加用于独立于止回阀打开阀的力，适于从腔室释放流体 当活塞必须从其第二位置移动到其第一位置时。

公开(公告)号：US09062574B2

公开(公告)日：2015-06-23

申请号：US14267260

申请日：2014-05-01

申请人： MAN Truck & Bus AG

发明人： Robert Wiemann ,  Georg Maget

IPC分类号： F01L9/02 ,  F01L13/06 ,  F01L1/18 ,  F01L1/26

CPC分类号： F01L13/06 ,  F01L1/181 ,  F01L1/26 ,  F01L13/065

摘要： A device for actuating outlet valves that are acted on via a valve bridge of a valve-controlled internal combustion engine for motor vehicles includes a first piston-cylinder unit in the force flow between a cam of a driving camshaft and one of the outlet valves. When one of the outlet valves opens under the action of exhaust-gas counterpressure, play compensation in the valve drive can be produced in order to hold the one of the outlet valves open by the first piston-cylinder unit. A second, coaxial piston-cylinder unit interacts with a positionally fixed counter bracket and controls a discharge duct out of the pressure chambers of the two piston-cylinder units. The piston of the first piston-cylinder unit is preloaded in a readjustment direction by a spring. To reliably obtain a lack of play in the valve drive in particular during engine braking operation, the readjustment spring acts, without being supported in the valve bridge, on the pistons of both piston-cylinder units.

摘要翻译： 用于致动通过用于机动车辆的阀控内燃机的阀桥作用的出口阀的装置包括在驱动凸轮轴的凸轮和一个出口阀之间的力流中的第一活塞 - 气缸单元。 当其中一个出气阀在废气反压作用下打开时，可以产生阀驱动中的补偿，以便通过第一活塞 - 气缸单元保持一个出口阀打开。 第二个同轴的活塞 - 气缸单元与位置固定的反向支架相互作用，并将排出管道从两个活塞 - 气缸单元的压力室中排出。 第一活塞 - 气缸单元的活塞通过弹簧以重新调整的方向预载。 特别是在发动机制动操作期间，为了可靠地获得阀驱动中的游隙不足，重新调节弹簧作用于不在阀桥中的两个活塞缸单元的活塞上。

公开(公告)号：US20150144097A1

公开(公告)日：2015-05-28

申请号：US14405960

申请日：2013-06-06

申请人： DAF Trucks N.V.

发明人： Andreas Lingens ,  Roel Peters

IPC分类号： F02B37/22 ,  F02D41/26 ,  F02B37/24 ,  F02D41/00 ,  F01L13/06 ,  F02D9/06

CPC分类号： F02B37/22 ,  F01L13/065 ,  F02B37/24 ,  F02D9/06 ,  F02D41/0007 ,  F02D41/1448 ,  F02D41/263 ,  F02D2200/0406 ,  F02D2200/101 ,  F02D2200/703 ,  F02D2250/34 ,  Y02T10/144

摘要： A method and a system are described for a compression release brake in an engine comprising an exhaust manifold connected to a turbine provided with a variable turbine geometry wherein said turbine is further connected to a back pressure valve for controlling the pressure drop over said turbine wherein the method comprises the steps of: controlling said, back pressure valve on the basis of a measured engine speed and a desired braking power; calculating a desired exhaust manifold, gas pressure on the basis of said measured engine speed and said, desired braking power; and, controlling said variable turbine geometry such that the difference between a measured exhaust manifold gas pressure and said calculated desired exhaust manifold gas pressure is minimised.

摘要翻译： 描述了用于发动机中的压缩释放制动器的方法和系统，其包括连接到具有可变涡轮机几何形状的涡轮机的排气歧管，其中所述涡轮机还进一步连接到用于控制所述涡轮机上的压降的背压阀， 方法包括以下步骤：基于所测量的发动机转速和期望的制动功率来控制所述背压阀; 基于所述测量的发动机速度和所述所需的制动功率来计算期望的排气歧管，气体压力; 并且控制所述可变涡轮机几何形状使得测得的排气歧管气体压力与所计算的所需排气歧管气体压力之间的差最小化。

公开(公告)号：US20150122220A1

公开(公告)日：2015-05-07

申请号：US14412467

申请日：2013-07-05

申请人： Eaton Srl

发明人： Majo Cecur

IPC分类号： F01L1/24 ,  F01L13/06 ,  F01L1/26

CPC分类号： F01L1/2405 ,  F01L1/24 ,  F01L1/2411 ,  F01L1/267 ,  F01L13/06 ,  F01L2001/2433 ,  F01L2013/105

摘要： A hydraulic lash adjuster for an engine valve train has a hydraulic lash adjusting arrangement for automatically compensating for lash in an engine valve train, and a lost motion arrangement for inhibiting motion induced in the valve train in response to a lift profile of a rotating cam from being transferred to an engine valve.

摘要翻译： 用于发动机气门机构的液压间隙调节器具有用于自动补偿发动机气门机构中的间隙的液压间隙调节装置，以及用于响应于旋转凸轮的升程曲线而抑制在气门机构中引起的运动的空动装置 被转移到发动机气门。

公开(公告)号：US08950378B2

公开(公告)日：2015-02-10

申请号：US13469678

申请日：2012-05-11

申请人： Bradford Jay Holt ,  Thomas Lynn Grill ,  Steven Kohl Anderson

发明人： Bradford Jay Holt ,  Thomas Lynn Grill ,  Steven Kohl Anderson

IPC分类号： F01L13/06

CPC分类号： F02D13/04

摘要： A machine includes a power source, an engine retarder associated with the power source, and a traction device receiving power from the power source and configured to propel the machine. The machine also includes a brake mechanism associated with the traction device, and a controller in communication with the engine retarder and the brake mechanism. The controller is configured to activate the engine retarder, substantially simultaneously with the brake mechanism, based on a brake pressure associated with the brake mechanism.

摘要翻译： 机器包括电源，与电源相关的发动机缓速器，以及牵引装置，其从动力源接收动力并构造成推动机器。 机器还包括与牵引装置相关联的制动机构，以及与发动机减速器和制动机构连通的控制器。 控制器被配置为基于与制动机构相关联的制动压力来激励与制动机构基本上同时的发动机减速器。

公开(公告)号：US08931456B2

公开(公告)日：2015-01-13

申请号：US13190544

申请日：2011-07-26

申请人： Franz Rammer ,  Franz Leitenmayr ,  Gottfried Raab

发明人： Franz Rammer ,  Franz Leitenmayr ,  Gottfried Raab

IPC分类号： F02D9/06 ,  F01L1/18 ,  F01L13/06 ,  F02B37/02 ,  F02B37/18 ,  F02B37/22 ,  F02D13/04 ,  F02D41/00 ,  F02D41/14

CPC分类号： F02D9/06 ,  F01L1/181 ,  F01L13/06 ,  F02B37/025 ,  F02B37/18 ,  F02B37/22 ,  F02D13/04 ,  F02D41/0007 ,  F02D41/0055 ,  F02D41/1448 ,  F02D2200/0406 ,  F02D2250/34 ,  Y02T10/144 ,  Y02T10/47

摘要： A method for engine braking of an engine which has at least one exhaust-gas turbocharger with an exhaust-gas turbine acted on by an exhaust-gas flow and a charge air compressor. A device for throttling exhaust-gas flow is arranged between exhaust outlet valves and the exhaust-gas turbocharger, and a bypass line conducts the exhaust-gas flow past the throttling device, the exhaust-gas flow being conducted through the at least one bypass line to a turbine wheel of the exhaust-gas turbine. An exhaust gas counter-pressure and a charge air pressure are measured. Based on the measurement, an optimum position of the throttling device to obtain a predetermined braking action is determined. The exhaust-gas counter-pressure and the charge air pressure are subsequently controlled by adjusting the throttling device corresponding to the determination of the optimum position of the throttling device.

摘要翻译： 一种用于发动机的发动机制动方法，该发动机具有至少一个废气涡轮增压器，该废气涡轮增压器具有由废气流动的排气涡轮机和增压空气压缩机。 在排气出口阀和废气涡轮增压器之间设有用于节流废气流的装置，并且旁路管线使废气流通过节流装置，废气流通过至少一个旁通管线 到排气涡轮机的涡轮机叶轮。 测量废气反压力和增压空气压力。 基于该测量，确定节流装置获得预定制动动作的最佳位置。 然后通过根据节流装置的最佳位置的确定来调节节流装置来控制排气逆压和增压空气压力。

公开(公告)号：US08887679B2

公开(公告)日：2014-11-18

申请号：US14127270

申请日：2011-07-22

申请人： Benjamin Girard ,  Romain Le Forestier

发明人： Benjamin Girard ,  Romain Le Forestier

IPC分类号： F01L1/18 ,  F01L1/34 ,  F01L13/00 ,  F01L13/06 ,  F01L13/08 ,  F01L1/26

CPC分类号： F01L1/34 ,  F01L1/181 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/06 ,  F01L13/08

摘要： A valve actuation mechanism for an internal combustion engine includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a valve actuation mechanism of each cylinder belonging to a housing of the engine, via an engine brake activation piston, housed in a bore of the rocker, and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly linked to the bore, from a first position, in which an engine brake function is deactivated, to a second position, in which a roller of the rocker reads at least one engine brake bump of a cam of the camshaft so as to perform the engine brake function. Each rocker includes a discharge valve movable in translation with respect to the rocker, adapted to reduce fluid pressure in the chamber. The engine brake system includes, for each rocker, a stopper fast with the housing and adapted to exert, on a portion of the piston, a force for opening the discharge valve when the activation piston has to be moved from its second position to its first position.

摘要翻译： 用于内燃机的阀致动机构包括由凸轮轴移动的摇臂，每个摇杆适于通过发动机在发动机的壳体的每个气缸的气门致动机构的至少一部分上施加阀打开力 制动激活活塞，容纳在摇杆的孔中，并且在从发动机制动功能被停用的第一位置到与所述孔流体连接的腔室中的流体压力升高的作用下可相对于所述摇杆运动， 第二位置，其中摇杆的滚子读取凸轮轴的凸轮的至少一个发动机制动凸块，以执行发动机制动功能。 每个摇杆包括可相对于摇杆平移的排气阀，适于减小腔室中的流体压力。 发动机制动系统包括用于每个摇杆的止动件，其与所述壳体快速连接并且适于在所述活塞的一部分上施加用于当所述致动活塞必须从其第二位置移动到其第一位置时打开所述排出阀的力 位置。

公开(公告)号：US08746208B2

公开(公告)日：2014-06-10

申请号：US13462142

申请日：2012-05-02

申请人： Heribert Möller

发明人： Heribert Möller

IPC分类号： F01L13/06

CPC分类号： F01L13/06 ,  F01L1/053 ,  F01L1/181 ,  F01L1/20 ,  F01L1/267 ,  F01L2013/105 ,  F01L2105/00 ,  F01L2810/02

摘要： An internal combustion engine has a combustion chamber, from which exhaust gas can be discharged by way of at least one exhaust valve. An engine braking device includes an hydraulic additional valve control unit is integrated into a connecting mechanism connecting the exhaust valve to a camshaft and holding the exhaust valve in a partially opened position when the engine brake is actuated. The connecting mechanism includes a rocker lever and an intermediate element between the rocker lever and the exhaust valve. The hydraulic additional valve control unit of the engine braking device has a first piston-cylinder unit for the temporary partial opening of one exhaust valve, and an hydraulic valve lash compensating mechanism has a second piston-cylinder unit for counteracting valve lash. The first piston-cylinder unit is arranged in or on the intermediate element. The second piston-cylinder unit is arranged in or on the rocker lever.

摘要翻译： 内燃机具有燃烧室，排气可以通过至少一个排气阀排出。 发动机制动装置包括液压附加阀控制单元，其集成在将排气阀连接到凸轮轴并且在发动机制动器被致动时将排气阀保持在部分打开位置的连接机构中。 连接机构包括摇杆和摇杆与排气阀之间的中间元件。 发动机制动装置的液压附加阀控制单元具有用于临时部分打开一个排气阀的第一活塞缸单元，液压阀间隙补偿机构具有用于抵消阀间隙的第二活塞缸单元。 第一活塞缸单元布置在中间元件中或中间元件上。 第二活塞 - 气缸单元设置在摇杆中或其上。