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公开(公告)号：US20230102765A1
公开(公告)日：2023-03-30
申请号：US17800072
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Andrei D. Radulescu , Ramy Rezkalla , Daniel Nelson , James Sheren , Michele Angelo Cecchi , Marco Ravoni , Maria Letizia Ciardullo
Abstract: A castellation assembly comprises a lost motion spring assembly, an upper castellation piece, and a lower castellation piece. A spring hat comprises a crown, a pin hole through the crown, and a brim. A lost motion spring is seated against the spring hat.
Upper castellation piece comprises a tubular body, an upper inner rim adjoining the brim, and upper castellation teeth. Lower castellation piece comprises a spring post extending up from a castellation body, the spring post passing through the lost motion spring, and through the pin hole. Lower castellation teeth extend from the castellation body. The lost motion spring is biased against the castellation body to lift the upper inner rim by the brim. A lash screw can house the spring post so that the spring post terminates inside the lash screw. A rocker arm is an example of a castellation assembly installation.-
公开(公告)号：US11905859B2
公开(公告)日：2024-02-20
申请号：US17800072
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Andrei D. Radulescu , Ramy Rezkalla , Daniel Nelson , James Sheren , Michele Angelo Cecchi , Marco Ravoni , Maria Letizia Ciardullo
CPC classification number: F01L1/181 , F01L1/20 , F01L13/065 , F01L2001/467 , F01L2013/001 , F01L2013/105 , F01L2305/00
Abstract: A castellation assembly comprises a lost motion spring assembly, an upper castellation piece, and a lower castellation piece. A spring hat comprises a crown, a pin hole through the crown, and a brim. A lost motion spring is seated against the spring hat. Upper castellation piece comprises a tubular body, an upper inner rim adjoining the brim, and upper castellation teeth. Lower castellation piece comprises a spring post extending up from a castellation body, the spring post passing through the lost motion spring, and through the pin hole. Lower castellation teeth extend from the castellation body. The lost motion spring is biased against the castellation body to lift the upper inner rim by the brim. A lash screw can house the spring post so that the spring post terminates inside the lash screw. A rocker arm is an example of a castellation assembly installation.
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公开(公告)号：US12188384B2
公开(公告)日：2025-01-07
申请号：US18251253
申请日：2021-11-10
Applicant: Eaton Intelligent Power Limited
Inventor： Mirko Guaschino , Marco Ravoni , Nicola Andrisani , Michele Angelo Cecchi , Massimo D'Amore
Abstract: A latch assembly (500) can comprise a main latch pin assembly (531, 532) comprising a first diameter (D1) on a first main pin face (512, 522), and a secondary latch piston (541, 561) comprising a second diameter (D2) on a secondary piston face (543, 563). The secondary latch piston can be configured to selectively act on the main latching pin assembly. The main latch pin assembly can be biased to oppose the secondary latch piston. The first diameter can be greater than the second diameter. A rocker arm assembly (10) can comprise the latch assembly. A primary arm (100) can be configured to receive the main latch pin assembly. A secondary arm (300) can be configured to receive the secondary latch piston.
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Patent Agency Ranking
公开(公告)号：US12297754B2
公开(公告)日：2025-05-13
申请号：US17800001
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Michele Angelo Cecchi , Marco Ravoni , Maria Letizia Ciardullo , Raffaele DiMaro , Nicola Andrisani
Abstract: Several devices are disclosed that can be usable together or used in other valvetrains. Disclosed herein are a rocker arm assembly, compliance capsules for a switchable capsule of the rocker arm, actuators, and support structures for the actuators. The alternative compliance capsules can be electromechanically actuated by the alternative actuators, which are hung over the rocker shaft by the support structure. A cam actuator can be in addition to an overhead cam rail and in addition to the rocker shaft. The cam actuator can be configured with a compliance capsule so that the switching of the switchable capsule is mechanically linked and less reliant on precise electrical signal timing.
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公开(公告)号：US11428127B2
公开(公告)日：2022-08-30
申请号：US17424944
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Raffaele DiMaro , Marco Ravoni
Abstract: A castellation device comprises a shaft surrounded by three castellation members. A first castellation member is rotatably mounted on the shaft and comprises a first end and a second end opposite to the first end. A second castellation member is slidably mounted along the shaft adjacent the first end of the first castellation member. A third castellation member is mounted to the shaft adjacent the second end of the first castellation member. A bias spring is disposed between the second castellation member and the third castellation member and is configured to bias the second castellation member away from the third castellation member. Optionally, an annular shroud can enclose the three castellation members. The first castellation member is rotatable relative to the second and third castellation members between a first position and a second position.
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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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公开(公告)号：US20230074370A1
公开(公告)日：2023-03-09
申请号：US17800001
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Michele Angelo Cecchi , Marco Ravoni , Maria Letizia Ciardullo , Raffaele DiMaro , Nicola Andrisani
Abstract: Several devices are disclosed that can be usable together or used in other valvetrains. Disclosed herein are a rocker arm assembly, compliance capsules for a switchable capsule of the rocker arm, actuators, and support structures for the actuators. The alternative compliance capsules can be electromechanically actuated by the alternative actuators, which are hung over the rocker shaft by the support structure. A cam actuator can be in addition to an overhead cam rail and in addition to the rocker shaft. The cam actuator can be configured with a compliance capsule so that the switching of the switchable capsule is mechanically linked and less reliant on precise electrical signal timing.
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公开(公告)号：US20220145781A1
公开(公告)日：2022-05-12
申请号：US17424944
申请日：2021-02-19
Applicant: Eaton Intelligent Power Limited
Inventor： Raffaele DiMaro , Marco Ravoni
Abstract: A castellation device comprises a shaft surrounded by three castellation members. A first castellation member is rotatably mounted on the shaft and comprises a first end and a second end opposite to the first end. A second castellation member is slidably mounted along the shaft adjacent the first end of the first castellation member. A third castellation member is mounted to the shaft adjacent the second end of the first castellation member. A bias spring is disposed between the second castellation member and the third castellation member and is configured to bias the second castellation member away from the third castellation member. Optionally, an annular shroud can enclose the three castellation members. The first castellation member is rotatable relative to the second and third castellation members between a first position and a second position.
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