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公开(公告)号：US20240280037A1
公开(公告)日：2024-08-22
申请号：US18542631
申请日：2023-12-16
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Matei ALEXANDRU , Tyler HINES , Gabriel S. ROBERTS , Austen P. METSACK
CPC classification number: F01L13/0036 , F01L1/181 , F01L1/267 , F01L1/46 , F01L2001/186 , F01L1/2411 , F01L2001/467
Abstract: A system for actuating at least one engine valve comprises an output rocker operatively connected to the at least one engine valve. A first rocker assembly is operatively connected to a first valve actuation motion source. The first rocker assembly comprises a first input rocker arranged in series with a first lost motion component, wherein the first input receives first valve actuation motions from the first valve actuation motion source and the first lost motion component is operatively connected to the output rocker. A second rocker assembly is operatively connected to a second valve actuation motion source. The second rocker assembly comprises a second input rocker arranged in series with a second lost motion component, wherein the second input rocker receives second valve actuation motions from the second valve actuation motion source and the second lost motion component is operatively connected to the output rocker.
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公开(公告)号：US20240280036A1
公开(公告)日：2024-08-22
申请号：US18444711
申请日：2024-02-18
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Austen P. METSACK , Gabriel S. ROBERTS , John MANDELL
CPC classification number: F01L1/181 , F01L1/2411 , F01L2305/00 , F01L2820/033
Abstract: A rocker arm comprises a hydraulic actuator piston slidably disposed in an actuator bore. An actuator spring is configured to bias the hydraulic actuator piston out of actuator bore and into contact with a valve train component or at least one engine valve, wherein reaction of the hydraulic actuator piston against the valve train component or the at least one engine valve biases a motion receiving portion of the rocker arm into contact with the valve actuation motion source. In an unactuated state of the hydraulic actuator piston, hydraulic fluid is permitted to flow out of the actuator bore and, in an actuated state of the hydraulic actuator piston, hydraulic fluid is locked in the actuator bore.
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3.发明公开公开(公告)号：US20240183291A1
公开(公告)日：2024-06-06
申请号：US18528560
申请日：2023-12-04
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： G. Michael GRON, JR. , Matei ALEXANDRU , John MANDELL , Paul M. BOVAT , Justin D. BALTRUCKI
CPC classification number: F01L13/0005 , F01L9/10 , F01L9/40 , F01L13/06 , F02D13/0203 , F02D13/04 , F02D13/06 , F01L2760/00
Abstract: A valve actuation system comprises a cylinder deactivation controller operatively connected to and in fluid communication with intake and exhaust deactivators for at least one cylinder. The valve actuation system further comprises an engine braking controller operatively connected to and in fluid communication with the engine braking actuators for the at least one cylinder. A braking-dependent deactivator controller is disposed between and in fluid communication with the cylinder deactivation controller and the intake deactivators, and in fluid communication with the engine braking controller via a control input. The braking-dependent deactivator controller is configured, in a first state based on its control input, to permit hydraulic fluid flow in hydraulic fluid control passages for the intake deactivators when in a non-1.5-stroke engine braking mode and, in a second state, to vent the hydraulic fluid control passages for the intake deactivators when in a 1.5-stroke engine braking mode.
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公开(公告)号：US11619180B2
公开(公告)日：2023-04-04
申请号：US17302475
申请日：2021-05-04
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Gabriel S. Roberts , Steven Benn , Dong Yang , Eric Hodgkinson , Dominick Guarna
Abstract: 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.
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公开(公告)号：US11473458B2
公开(公告)日：2022-10-18
申请号：US16573660
申请日：2019-09-17
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Justin D. Baltrucki , Trevor Morrissey
Abstract: Hydraulic systems in an engine valvetrain having lost motion and/or braking hydraulic circuits are provided with a conditioning circuit that may include a supplemental supply passage, which provides continuous and supplemental supply of hydraulic fluid from a supply source to the braking and lost motion circuits, as well as a venting of the circuits to ambient, such that the hydraulic fluid in these circuits is kept in a refreshed and conditioned state without air contamination. A vented three-way solenoid valve may be utilized. The supplemental supply passage may be provided at various locations in the valvetrain and in the engine head environment. The supplemental supply passage may include flow and pressure control devices to control the flow of the supplemental supply of hydraulic fluid.
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Patent Agency Ranking
公开(公告)号：US11408310B2
公开(公告)日：2022-08-09
申请号：US17247481
申请日：2020-12-12
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Justin D Baltrucki , G. Michael Gron, Jr.
IPC: F01L13/00 , F01L1/46 , F01L13/06 , F01L1/14 , F01L1/18 , F01L1/26 , F01L1/24 , F01L1/245 , F01L1/047
Abstract: A valve actuation system comprises a valve actuation motion source configured to provide a main valve actuation motion and an auxiliary valve actuation motion for actuating at least one engine valve via a valve actuation load path. A lost motion subtracting mechanism is arranged in the valve actuation load path and configured, in a first default operating state, to convey at least the main valve actuation motion and configured, in a first activated state, to lose the main valve actuation motion and the auxiliary valve actuation motion. Additionally, a lost motion adding mechanism configured, in a second default operating state, to lose the auxiliary valve actuation motion and configured, in a second activated state, to convey the auxiliary valve actuation motion, wherein the lost motion adding mechanism is in series with the lost motion subtracting mechanism in the valve actuation load path at least during the second activated state.
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7.发明申请公开(公告)号：US20220178279A1
公开(公告)日：2022-06-09
申请号：US17457574
申请日：2021-12-03
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： G. Michael GRON, JR. , Jacob MOORE , Justin D. BALTRUCKI , Eric J. HODGKINSON , Timothy P. NEAL , Bruce A. SWANBON , Robb JANAK , Matei ALEXANDRU
Abstract: A system for controlling actuation of an engine valve comprises a pivot and a torsion spring having first and second legs operatively connected to the pivot. A lever arm is adjustably affixed to and extending away from the pivot, and is further rotatable about a pivot axis of the pivot between a retracted position and an extended position and vice versa relative to a motion conveying component. Furthermore, a housing is provided having a pivot bore formed therein with the pivot rotatably disposed in the pivot bore. The housing further comprises a first and second openings intersecting with the pivot bore such that the first and second legs extend out of the first opening and the lever arm extends out of the second opening. When a first force is applied by the motion conveying component to the lever arm, such first force maintains the lever arm in the extended position.
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公开(公告)号：US20220145785A1
公开(公告)日：2022-05-12
申请号：US17648766
申请日：2022-01-24
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： John A. SCHWOERER , G. Michael GRON, JR. , Jacob M. MOORE , Thomas P. HOWELL
IPC: F01L9/12
Abstract: 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.
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公开(公告)号：US11255226B2
公开(公告)日：2022-02-22
申请号：US16409614
申请日：2019-05-10
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Justin D. Baltrucki , Gabriel S. Roberts , Matei Alexandru , John Mandell
IPC: F01L1/34 , F01L1/24 , F01L1/08 , F01L1/26 , F01L9/12 , F16K31/60 , F01L13/06 , F01L1/053 , F01L1/047 , F01L13/00
Abstract: 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 HLA jacking in dedicated cam environments including Type II valvetrain architectures. In one implementation, a lash adjuster loading component, which may comprise a stroke-limited spring biased piston associated with the main event valvetrain keeps the lash adjuster under a constant compressive force to prevent jacking.
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公开(公告)号：US11181012B2
公开(公告)日：2021-11-23
申请号：US16706701
申请日：2019-12-07
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Matei Alexandru , Justin D. Baltrucki , Gabriel S. Roberts , John Mandell
Abstract: A valve actuation system for actuating at least one engine valve comprises a first half-rocker arm configured to receive main valve actuation motions from a main valve actuation motion source and a second rocker arm configured to actuate the at least one engine valve. A collapsing mechanism is also provided and configured relative to the first half-rocker arm and the second rocker arm, in a first collapsing mechanism state, to convey the main valve actuation motions from the first half-rocker arm to the second rocker arm and, in a second collapsing mechanism state, to prevent conveyance of the main valve actuation motions from the first half-rocker arm to the second rocker arm. The collapsing mechanism may be disposed in the first half-rocker arm or the second rocker arm, where the rocker arm not including the collapsing mechanism is provided with a collapsing mechanism contact surface.
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