公开(公告)号：US12116909B2

公开(公告)日：2024-10-15

申请号：US16342353

申请日：2017-10-16

申请人： Eaton Intelligent Power Limited

发明人： Douglas Anthony Hughes ,  Matthew Richard Busdiecker ,  Dale Arden Stretch ,  Petr Liskar ,  Jiri Cecrle ,  Michael J. Campbell

IPC分类号： F01L1/18 ,  F01L1/24 ,  F01L1/26 ,  F01L13/00

CPC分类号： F01L1/185 ,  F01L1/24 ,  F01L1/267 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2001/187 ,  F01L2301/00 ,  F01L2305/00 ,  F01L2820/03

摘要： A valvetrain suitable for an internal combustion engine of a type that includes a combustion chamber, a moveable valve having a seat formed within the combustion chamber, and a camshaft. The valvetrain includes a rocker arm assembly having a rocker arm and an electrical device that either configures the rocker arm assembly or provides position feedback for a part of the rocker arm assembly. The valvetrain includes a framework that fits around a spark plug tube while holding a component of a circuit that includes the electrical device in a position adjacent the rocker arm assembly. The position may place the component in contact with or very close to the rocker arm assembly. This framework structure may effectively utilize the available space under a valve cover while facilitating correct positioning of the component in relation to the rocker arm assembly.

公开(公告)号：US12098660B1

公开(公告)日：2024-09-24

申请号：US18224607

申请日：2023-07-21

申请人： Schaeffler Technologies AG & Co. KG

发明人： Colin Foster

IPC分类号： F01L1/26 ,  F01L1/18 ,  F01L1/20 ,  F01L1/46 ,  F01L9/20 ,  F01L13/00

CPC分类号： F01L1/267 ,  F01L1/181 ,  F01L1/20 ,  F01L1/462 ,  F01L9/20 ,  F01L13/0005 ,  F01L2001/467

摘要： A switchable valve bridge for an internal combustion engine is provided that includes an outer housing, an inner housing, a locking collar, and a first ramp. The outer housing includes two valve pallets configured to interface with two poppet valves. The inner housing is slidably disposed within the outer housing. The inner housing has a first locking latch configured to move radially relative to an actuation axis of the inner housing. The locking collar is configured to move axially via an actuation force applied to the locking collar in a first axial direction parallel to the actuation axis. The first ramp is disposed within both the first locking aperture and the locking collar. The first ramp is configured to be actuated by the locking collar such that axial movement of the first ramp causes radial movement of the first locking latch.

公开(公告)号：US20240263573A1

公开(公告)日：2024-08-08

申请号：US18432226

申请日：2024-02-05

申请人： ARA4 Consulting LLC

发明人： Steven E Massey ,  Tibor Kiss

IPC分类号： F01L9/10 ,  F01L1/26

CPC分类号： F01L9/10 ,  F01L1/26

摘要： A hydraulic valve actuation system with controlled valve seating velocity and method therefor are proposed. The system includes an actuator with a housing and a drive assembly formed from a drive piston within the housing and an adjustment pin. In an internal combustion engine application, the adjustment pin contacts and moves an engine valve that controls air and fuel entering an engine cylinder. The actuator provides velocity dampening of the drive piston, via an annulus-shaped fluid communication path defined by at least one surface of the drive piston and at least one opposing surface of a damping chamber formed within the housing. The dampening hydraulically cushions the impact of a bottom of the drive piston against a bottom stop of the actuator during opening of the engine valve, which reduces noise and engine wear. In another example, the system is configured to control an engine valve seating velocity.

公开(公告)号：US11970959B2

公开(公告)日：2024-04-30

申请号：US18485338

申请日：2023-10-12

申请人： JIANGSU JOINTEK PRECISION MACHINERY CO., LTD.

发明人： Huaxue Tang

IPC分类号： F01L9/14 ,  F01L1/18 ,  F01L1/26 ,  F01L1/46 ,  F01L13/06

CPC分类号： F01L9/14 ,  F01L1/181 ,  F01L1/267 ,  F01L1/46 ,  F01L13/06

摘要： The embodiments of the present disclosure provide a valve actuator for a specialized stationary two-piston hydraulic engine, including a specialized drive cam, an actuator, an oil drive line, and a control valve. A hydraulic linkage is maintained between a primary piston and a secondary piston when the control valve is open, and the oil drive line is drained through the control valve when the control valve is closed. In the present disclosure, by integrating the primary piston and the secondary piston in a specialized actuator, oil consumption is reduced, and with a design of the specialized drive cam, an optimized design of the valve actuator that operates independently of a positive valve mechanism is realized, thus reducing interference and influence of the valve actuator on an operation of the positive valve mechanism.

公开(公告)号：US11867306B2

公开(公告)日：2024-01-09

申请号：US17891586

申请日：2022-08-19

申请人： Oshkosh Corporation

发明人： Kevin G. Jax ,  Clinton Weckwerth

IPC分类号： B65F3/04 ,  F16K3/02 ,  F01L1/46 ,  F01L1/26 ,  B65F3/02

CPC分类号： F16K3/02 ,  B65F3/041 ,  F01L1/26 ,  F01L1/46 ,  B65F2003/025 ,  B65F2003/0223

摘要： A refuse body assembly includes a body, a bracket, and a valve assembly. The body defines a compartment. The body includes a bottom wall defining a horizontal plane and a front wall defining a vertical plane. The bracket has an arm that is coupled to and extends rearward from the front wall into the compartment at an angle such that the arm is neither parallel with the horizontal plane nor parallel with the vertical plane. The valve assembly is coupled to the bracket.

公开(公告)号：US11761360B2

公开(公告)日：2023-09-19

申请号：US16620596

申请日：2018-06-07

申请人： GREAT WALL MOTOR COMPANY LIMITED

发明人： Tao Liu ,  Fabao Yang ,  Liming Xu ,  Ji Yin ,  Jiajia Hu ,  Luping Liu ,  Song Zhang ,  Yanlong Fang

IPC分类号： F01L13/00 ,  F01L1/053 ,  F01L1/18 ,  F01L1/26 ,  F01L1/34

CPC分类号： F01L13/0026 ,  F01L13/0063 ,  F01L1/053 ,  F01L1/18 ,  F01L1/267 ,  F01L1/34 ,  F01L2013/0073 ,  F01L2305/00 ,  F01L2820/032

摘要： A control method for a continuously variable valve lift mechanism includes: controlling a continuously variable valve lift mechanism to enter a limp mode when the continuously variable valve lift mechanism fails and disables an automatic valve lift changing function; driving and forcing the continuously variable valve lift mechanism to move to a maximum lift position; and triggering a self locking function to self lock the continuously variable valve lift mechanism at the maximum lift position when the continuously variable valve lift mechanism reaches the maximum lift position. A control system for a continuously variable valve lift mechanism, and a vehicle are also provided.

公开(公告)号：US20230235687A1

公开(公告)日：2023-07-27

申请号：US18130087

申请日：2023-04-03

申请人： Pacbrake Company

发明人： Kody TAYLOR ,  James BALDWIN ,  Peter STEC

IPC分类号： F01L13/06 ,  F01L9/10 ,  F01L9/40 ,  F01L1/18 ,  F01L1/22 ,  F01L1/26 ,  F01L1/46 ,  F02D13/04 ,  F01L1/24

CPC分类号： F01L13/065 ,  F01L9/10 ,  F01L9/40 ,  F01L1/18 ,  F01L1/22 ,  F01L1/26 ,  F01L1/462 ,  F02D13/04 ,  F01L1/181 ,  F01L1/267 ,  F01L13/06 ,  F01L1/2411 ,  F01L2001/467 ,  F01L2001/2444

摘要： A compression-release engine brake system operating an exhaust valve of an engine during a compression-release engine braking operation. The compression-release brake system comprises an exhaust rocker arm and a brake reset device disposed in a reset bore formed in the exhaust rocker arm. The brake reset device comprises a reset check valve, a slider-piston slidably disposed in the reset bore and an external slider bias spring biasing the piston foot away from the brake reset device. The external slider bias spring is disposed outside the reset bore and around the piston-slider. The brake reset device permits pressurized hydraulic fluid to flow from a supply conduit to a reset conduit to supply a brake actuation piston when the reset check valve is open. The actuation piston extends and engages the exhaust valve toward the end of a compression stroke of the internal combustion engine, and the brake reset device resets.

公开(公告)号：US11692465B2

公开(公告)日：2023-07-04

申请号：US17621823

申请日：2020-08-06

申请人： C.R.F. Società Consortile per Azioni

发明人： Raffaele Ricco ,  Sergio Stucchi ,  Carlo Mazzarella ,  Onofrio De Michele

IPC分类号： F01L9/14 ,  F01L1/26 ,  F02D13/02 ,  F01L9/40 ,  F02D41/00 ,  F01L1/25 ,  F01L1/053 ,  F01L13/00 ,  F01L1/46

CPC分类号： F01L9/14 ,  F01L1/267 ,  F01L9/40 ,  F02D13/0226 ,  F02D13/0257 ,  F01L1/053 ,  F01L1/25 ,  F01L1/462 ,  F01L2013/101 ,  F01L2800/06 ,  F01L2820/031 ,  F02D2041/001 ,  F02D2041/0015

摘要： An internal combustion engine includes an electro-hydraulic system for variable actuation of intake valves where each cylinder has two intake valves, associated with two intake conduits. A first conduit is generates within the cylinder a tumble motion of airflow introduced therein, when the intake valve associated thereto is at least partially opened. The second intake conduit generates within the cylinder a swirl motion of airflow introduced therein when the second intake valve is at least partially opened. A controller of controls one or more control valves to open only one of the intake valves of each cylinder in a condition of reduced engine operation, below a predetermined load and/or a predetermined speed of the engine, and to always open both intake valves in the remaining conditions of engine operation. The first intake valve is the only valve to be opened in the reduced engine operation condition.

公开(公告)号：US11619180B2

公开(公告)日：2023-04-04

申请号：US17302475

申请日：2021-05-04

申请人： Jacobs Vehicle Systems, Inc.

发明人： Gabriel S. Roberts ,  Steven Benn ,  Dong Yang ,  Eric Hodgkinson ,  Dominick Guarna

IPC分类号： F02D13/02 ,  F01L1/18 ,  F01L1/14 ,  F01L1/46 ,  F01L13/00 ,  F01L1/26

摘要： A valve actuation system comprising a valve actuation motion source configured to provide a main event valve actuation motion to at least one engine valve via a main motion load path that comprises at least one valve train component. The valve actuation system further includes a lost motion component arranged within a first valve train component in the main motion load path, the lost motion component being controllable to operate in a motion conveying state or a motion absorbing state. The valve actuation system also comprises a high lift transfer component arranged in the main motion load path, with the high lift transfer component being configured to permit the main motion load path to convey at least a high lift portion of the main event valve actuation motion when the lost motion component is in the motion absorbing state.

公开(公告)号：US20230016116A1

公开(公告)日：2023-01-19

申请号：US17783553

申请日：2020-12-03

申请人： Daimler Truck AG

发明人： Matthias LAHR

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

摘要： A valve actuation device for actuating a first and second gas exchange valve of an internal combustion engine. A tilting lever is pivotable between a first starting position and a first actuation position and a valve bridge is movable between a second starting position and a second actuation position. A coupling device is switchable between a locking state, in which the valve bridge is movable out of the second starting position into the second actuation position via the coupling device by the tilting lever, and an unlocking state, in which, despite a movement of the tilting lever out of the first starting position into the first actuation position, there is no movement of the valve bridge out of the second starting position into the second actuation position. The coupling device is held on the tilting lever such that the coupling device is pivotable with the tilting lever.