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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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公开(公告)号：US11933203B2
公开(公告)日：2024-03-19
申请号：US17996796
申请日：2021-04-21
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil Saggam , Siddesh Kapdi , Suhrud Purohit , Matthew A. Vance
CPC classification number: F01L13/0005 , F01L1/18 , F01L1/46 , F01L1/146 , F01L1/267 , F01L2001/467 , F01L2013/001 , F01L2820/031
Abstract: A lost motion mechanism can comprise a castellation device, comprising a casing, an upper castellation, and a lower castellation. The casing can comprise a first linear slot and a second linear slot perpendicular to the first linear slot. Upper castellation can comprise an upper body, spaced upper teeth extending from the upper body, the spaced upper teeth forming spaced upper gaps therebetween, and an actuation peg extending from the upper body into the first linear slot. Lower castellation can comprise a lower body, spaced lower teeth extending from the lower body, the spaced lower teeth forming spaced lower gaps therebetween, and an anti-rotation peg extending from the lower body into the second linear slot. An actuator can be configured with the lost motion mechanism so that a movable arm comprises a forked end configured to move on the actuation peg as the movable arm swivels.
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公开(公告)号：US20210148258A1
公开(公告)日：2021-05-20
申请号：US17146574
申请日：2021-01-12
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Edwin Scott Brownell , Nikhil Saggam , Susheel Dharmadhikari
Abstract: A method of providing a rocker arm set for a valvetrain includes providing a first rocker arm configured as a switching rocker arm for a first intake valve, and providing a second rocker arm configured as a fixed rocker arm for a second intake valve, the second rocker arm operating in a normal Otto cycle mode. The first rocker arm operates in a late intake valve closing (LIVC) mode where the first rocker arm is configured to close the first intake valve later than the second intake valve.
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公开(公告)号：US11686224B2
公开(公告)日：2023-06-27
申请号：US17620510
申请日：2020-06-17
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 comprising a cam end, a center pivot bore, and a valve end. The valve end comprises a first actuator bore and a second actuator bore. A cylinder deactivation actuator is in the first actuator bore. An engine brake actuator is in the second actuator bore. The rocker assembly can be part of a valve assembly and can impart an engine braking function, a cylinder deactivation function, and a main lift function to first and second valves. It is also possible to impart an early exhaust valve opening, a main lift function, and a late exhaust valve closing to the engine braking valve.
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公开(公告)号：US20210396164A1
公开(公告)日：2021-12-23
申请号：US17462473
申请日：2021-08-31
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil Saggam , Pritam Edke
Abstract: A rocker arm assembly includes a rocker arm configured to rotate about a rocker shaft and having a valve side end configured to selectively engage an engine valve, and a cam side end configured to be selectively engaged by a camshaft. A cylinder deactivation (CDA) capsule is coupled to the cam side end and includes an outer body having at least one slot formed therein, the outer body configured to be coupled to the rocker arm, and an inner plunger at least partially received within the outer body and having at least one outwardly extending tab. The inner plunger is configured to translate within the outer body, and the at least one outwardly extending tab is received within the at least one slot and a groove formed in the rocker arm to facilitate preventing rotation of the inner plunger and outer body relative to the rocker arm.
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Patent Agency Ranking
公开(公告)号：US12180865B2
公开(公告)日：2024-12-31
申请号：US18262153
申请日：2022-01-20
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil Saggam , Shahnawaz Khan , Saurabh Patil , Matthew A. Vance
Abstract: A latch assembly and valvetrain therewith can comprise a stationary housing comprising a plunger cavity, a plunger in the plunger cavity, and a controllable upper latch member. The plunger can comprise a control end, a plunger body, a spigot body and a spigot end. The controllable upper latch member can be configured to selectively act on the control end and can be configured to switch between locking the plunger from moving along a first axis and unlocking the plunger to slide in the plunger cavity along the first axis. A slidable transverse latch member or rotatable upper castellation body can act as the controllable upper latch member. While a valve bridge and rocker arm can be movable, the housing for the latch assembly can be stationary.
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公开(公告)号：US20240093622A1
公开(公告)日：2024-03-21
申请号：US18262153
申请日：2022-01-20
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil Saggam , Shahnawaz Khan , Saurabh Patil , Matthew A. Vance
CPC classification number: F01L1/26 , F01L1/2411
Abstract: A latch assembly and valvetrain therewith can comprise a stationary housing comprising a plunger cavity, a plunger in the plunger cavity, and a controllable upper latch member. The plunger can comprise a control end, a plunger body, a spigot body and a spigot end. The controllable upper latch member can be configured to selectively act on the control end and can be configured to switch between locking the plunger from moving along a first axis and unlocking the plunger to slide in the plunger cavity along the first axis. A slidable transverse latch member or rotatable upper castellation body can act as the controllable upper latch member. While a valve bridge and rocker arm can be movable, the housing for the latch assembly can be stationary.
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8.发明公开公开(公告)号：US20230296036A1
公开(公告)日：2023-09-21
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 , 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 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 a mechanical lash-setting sleeve distanced from a travel stop defined within the first actuator bore. The cylinder deactivation actuator further comprises a lash 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 lash step when the hydraulically actuated latch assembly is in the latched configuration.
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公开(公告)号：US11542841B2
公开(公告)日：2023-01-03
申请号：US17404250
申请日：2021-08-17
Applicant: Eaton Intelligent Power Limited
Inventor： Pritam Edke , Nikhil Saggam , Nicola Andrisani
Abstract: A rocker arm assembly operable in an engine drive mode and at least one of a late intake valve closing (LIVC) mode and an internal exhaust gas recirculation (iEGR) mode, the rocker arm assembly selectively opening first and second engine valves. The rocker arm assembly includes a rocker arm configured to rotate about a rocker shaft, and a reverse reset capsule assembly movable between (i) a locked position configured to perform one of an LIVC operation and an iEGR operation, and (ii) an unlocked position that does not perform the LIVC operation or the iEGR operation. An actuator assembly is configured to selectively move the reverse reset capsule assembly between the locked and unlocked positions.
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公开(公告)号：US20220307389A1
公开(公告)日：2022-09-29
申请号：US17620510
申请日：2020-06-17
Applicant: Eaton Intelligent Power Limited
Inventor： Pritam Gopal Edke , Nikhil Saggam , Nicola Andrisani
Abstract: A rocker assembly for a type III center pivot valvetrain comprises a rocker arm comprising a cam end, a center pivot bore, and a valve end. The valve end comprises a first actuator bore and a second actuator bore. A cylinder deactivation actuator is in the first actuator bore. An engine brake actuator is in the second actuator bore. The rocker assembly can be part of a valve assembly and can impart an engine braking function, a cylinder deactivation function, and a main lift function to first and second valves. It is also possible to impart an early exhaust valve opening, a main lift function, and a late exhaust valve closing to the engine braking valve.
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