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公开(公告)号：US12297755B2
公开(公告)日：2025-05-13
申请号：US18883862
申请日：2024-09-12
Applicant: Eaton Intelligent Power Limited
Inventor： Nicola Andrisani , Fabiano C. F. Contarin , Austin R. Zurface , Emanuele Raimondi
Abstract: In one embodiment, a system for synchronizing switching comprises a first body coupled to a pressurized fluid supply and a control fluid supply, and a second body comprising a spool valve that is configured to be contained within a spool valve housing and movable between an open position and a closed position, a biasing element that is configured to bias the spool valve, and at least three fluid channels that are configured to be fluidly connected to the spool valve housing. The first body and the second body are configured for relative movement to each other. The spool valve is further configured to selectively control fluid communication among the fluid channels based on relative movement between the first body and the second body.
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公开(公告)号：US12025037B2
公开(公告)日：2024-07-02
申请号：US18548022
申请日：2022-03-07
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Nicola Andrisani
CPC classification number: F01L1/185 , F01L1/46 , F01L13/0005 , F01L2001/186 , F01L1/2405 , F01L2820/032
Abstract: A bidirectional latch pin assembly can comprise a housing portion comprising a latch port. A latch pin in the latch port can comprise a stepped nose extending from a body portion. The stepped nose can comprise a first step and a second step. A spring can be biased against a guide mounted in the latch port and the spring can be configured to bias the latch pin to a first position extending the first step out of the latch port. A first actuation assembly can be configured to move the latch pin to a second position extending the first step and the second step out of the latch port. A second actuation assembly can be configured to move the latch pin to a third position pulling the first step and the second step into the latch port. A switchable rocker arm and a valvetrain assembly can be formed therewith.
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公开(公告)号：US20240133322A1
公开(公告)日：2024-04-25
申请号：US18548022
申请日：2022-03-07
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Nicola Andrisani
CPC classification number: F01L1/185 , F01L13/0005 , F01L2001/186
Abstract: A bidirectional latch pin assembly can comprise a housing portion comprising a latch port. A latch pin in the latch port can comprise a stepped nose extending from a body portion. The stepped nose can comprise a first step and a second step. A spring can be biased against a guide mounted in the latch port and the spring can be configured to bias the latch pin to a first position extending the first step out of the latch port. A first actuation assembly can be configured to move the latch pin to a second position extending the first step and the second step out of the latch port. A second actuation assembly can be configured to move the latch pin to a third position pulling the first step and the second step into the latch port. A switchable rocker arm and a valvetrain assembly can be formed therewith.
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公开(公告)号：US11898470B2
公开(公告)日：2024-02-13
申请号：US18318884
申请日：2023-05-17
Applicant: Eaton Intelligent Power Limited
Inventor： Pritam Gopal Edke , Nikhil Saggam , Nicola Andrisani
CPC classification number: F01L1/181 , F01L13/065 , F01L1/22 , F01L1/267 , F01L1/46 , F01L13/0005 , F01L2013/001
Abstract: A rocker assembly for a type III center pivot valvetrain comprises a rocker arm having a cam end, a center pivot bore, and a valve end which includes a first actuator bore and a second actuator bore. The rocker assembly further comprises a cylinder deactivation actuator arranged in the first actuator bore. The cylinder deactivation actuator comprises a hydraulically actuated latch assembly configured to selectively switch between a latched configuration and an unlatched configuration and a mechanical lash-setting sleeve distanced from a travel stop defined within the first actuator bore. The cylinder deactivation actuator further comprises a latch step disposed below the mechanical lash-setting sleeve and extending into the first actuator bore. The hydraulically actuated latch assembly is configured to selectively travel between the travel stop and the latch step when the hydraulically actuated latch assembly is in the latched configuration.
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25.发明授权公开(公告)号：US11359523B2
公开(公告)日：2022-06-14
申请号：US16492176
申请日：2017-10-24
Applicant: Eaton Intelligent Power Limited
Inventor： Alessio Lorenzon , Emanuele Raimondi , Nicola Andrisani
Abstract: A valve train assembly includes: at least one dual body rocker arm having a first body, a second body, and a latching arrangement for latching and unlatching the first body and the second body, the latching arrangement being biased to an unlatched configuration; and an actuator arrangement external to the rocker arm for controlling the latching arrangement, the actuator arrangement being arranged so that a default setting thereof is to cause the latching arrangement to be in a latched configuration.
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Patent Agency Ranking
公开(公告)号：US20210071594A1
公开(公告)日：2021-03-11
申请号：US16961795
申请日：2019-01-11
Applicant: Eaton Intelligent Power Limited
Inventor： Matthew A. Vance , Nicola Andrisani , Nilesh L. Bagal , Andrei D. Radulescu
Abstract: An overhead cam engine system comprises a rotating overhead exhaust cam rail comprising a plurality of exhaust lobes. A first switching roller finger follower actuates a first exhaust valve, and is configured to switch between a first lift profile and a second lift profile. A second switching roller finger follower is coupled to actuate a second exhaust valve, and is configured to switch between a third lift profile and a fourth lift profile. The third and fourth lift profile are different than the first and second lift profile. An actuation assembly is connected to switch the first switching roller finger follower and the second switching roller finger follower to select between at least three exhaust lift modes to open and close the first exhaust valve and the second exhaust valve using combinations of the first, second, third and fourth lift profiles.
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公开(公告)号：US20200340374A1
公开(公告)日：2020-10-29
申请号：US16756491
申请日：2018-10-17
Applicant: Eaton Intelligent Power Limited
Inventor： Nicola Andrisani
Abstract: An actuation arrangement for actuating a plurality of latching arrangements of a respective plurality of dual body rocker arms of a valve train assembly of an internal combustion engine includes: a first shaft comprising one or more first selector cam for controlling the latching arrangements of a first group of one or more of the dual body rocker arms; and a second shaft comprising one or more second selector cams for controlling the latching arrangements of a second group of one or more of the dual body rocker arms. At least a portion of the first shaft is received in the second shaft, and the first shaft and the second shaft are controllable to rotate independently of one another, thereby to allow control of the latching arrangements of the dual body rocker arms on a per group basis.
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公开(公告)号：US10781725B2
公开(公告)日：2020-09-22
申请号：US16492173
申请日：2017-10-24
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Nicola Andrisani , Alessio Lorenzon
Abstract: A valve train assembly includes: at least one dual body rocker arm having a first body, a second body, a latching arrangement for latching and unlatching the first body and the second body, the latching arrangement having a latching pin that is biased to an unlatched configuration; and an actuator arrangement for controlling the latching arrangement, the actuator arrangement being able to contact the latching arrangement to cause the latching pin to be moved into a latched configuration in which it latches the first and second bodies together. In use, movement of the rocker arm under action of a cam to cause a valve event moves the actuator arrangement out of contact with the latching arrangement while a contact force between the latching pin and one or other of the first and second bodies maintains the latching pin in the latched configuration.
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公开(公告)号：US20200271023A1
公开(公告)日：2020-08-27
申请号：US16636944
申请日：2018-08-06
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Nicola Andrisani
Abstract: An actuation apparatus (3) for actuating a latching arrangement (40) of a switchable valve train component (2) of an internal combustion engine is disclosed. The actuation apparatus comprises a lever (33) for contacting an actuation source (100) and for contacting the latching arrangement (40), and a biasing means (31). The biasing means (31) contacts the lever (33). In use, the biasing means (31) becomes biased by the lever (33) when the actuation source moves the lever (33) when the actuation source (100) attempts to actuate the latching arrangement (40), via the lever (33), when the latching arrangement (40) is non-actuatable. The biasing means (31) causes the lever (33) to actuate the latching arrangement (40) when the latching arrangement (40) is actuatable again. Also disclosed is a valve-train assembly.
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公开(公告)号：US20250092805A1
公开(公告)日：2025-03-20
申请号：US18970245
申请日：2024-12-05
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Nicola Andrisani , Alessandro Roscioli , Marco Ravoni
IPC: F01L1/344
Abstract: A spool valve assembly operable for an automatic control of an oil flow, the spool valve assembly including an outer case, a spool valve configured to slide axially within the outer case, a first inlet port on the outer case configured for connecting with a first oil gallery, wherein the first oil gallery is operable as an outlet of a first oil control valve, a second inlet port on the outer case configured for connecting with a second oil gallery, wherein the second oil gallery is operable as an outlet of a second oil control valve, a spool outlet on the outer case configured for connecting with a third oil gallery, and a return spring configured to cause the spool valve to return to a rest position.
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