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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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公开(公告)号：US12188383B2
公开(公告)日：2025-01-07
申请号：US18253974
申请日：2021-11-30
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Massimo D'Amore
Abstract: A rocker arm assembly can include a latch assembly, a primary arm configured to receive the latch assembly, and a secondary arm configured to receive the latch assembly. The secondary arm includes a secondary arm body and a piston support ring. A pivot slot passes through the primary arm, the secondary arm body, and the piston support ring.
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公开(公告)号：US20240392704A1
公开(公告)日：2024-11-28
申请号：US18797133
申请日：2024-08-07
Applicant: Eaton Intelligent Power Limited
Inventor： Nicola Andrisani , Emanuele Raimondi , Massimo D'Amore
Abstract: An exhaust valve rocker arm assembly selectively operable in an engine braking mode includes a rocker arm and a valve end configured to selectively act on a valve bridge to engage a first and a second exhaust valve. The valve end includes a brake capsule to selectively extend in a first position to act on the first exhaust valve through the valve bridge. The valve end also includes a lost motion mechanism capable of selectively transmitting motion of the rocker arm to the valve bridge. The lost motion mechanism may integrate a hydraulic lash adjuster in particular embodiments.
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公开(公告)号：US20250059898A1
公开(公告)日：2025-02-20
申请号：US18934706
申请日：2024-11-01
Applicant: Eaton Intelligent Power Limited
Inventor： Nicola Andrisani , Emanuele Raimondi , Massimo D'Amore
Abstract: A rocker arm assembly capable of switchably deactivating a roller assembly includes a valve end and a cam end having first and second roller assemblies, and a latching mechanism. The latching mechanism includes rocker body pins and roller body pins. The rocker body pins include first and second end pins and a connection pin, each pin provided within a rocker arm body along a latching axis. The roller body pins include first and second locking pins, each roller body pin provided within a respective roller assembly. In a first latching mode, the first roller assembly is deactivated and the second roller assembly is activated. In a second latching mode, the second roller assembly is deactivated and the first roller assembly is activated.
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公开(公告)号：US12188382B2
公开(公告)日：2025-01-07
申请号：US17999625
申请日：2021-05-28
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Massimo D'Amore
Abstract: A rocker arm assembly can include an outer arm having an outer rocker shaft bore configured to receive a rocker shaft and an inner arm having an inner rocker shaft bore configured to receive the rocker shaft. The inner arm can be configured to selectively rotate. A latch pin can be movably seated in the outer arm and configured to move between a latched position and an unlatched position. The rocker arm assembly can further include a lost motion spring. The lost motion spring can include a first end connected to a connecting portion of the inner arm above the inner rocker shaft bore and a second end connected to the outer arm. The inner arm can include an inner arm stop member configured contact with a corresponding outer arm stop member of the outer arm.
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Patent Agency Ranking
公开(公告)号：US20240426228A1
公开(公告)日：2024-12-26
申请号：US18817034
申请日：2024-08-27
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Massimo D'Amore
Abstract: A switchable rocker arm can comprise a main body configured to rotate around a rocker shaft. The main body can comprise a valve end and a cam end. A second body can comprise a cam-receiving transfer portion and a latch bore through the transfer portion. The cam-receiving transfer portion can include a bearing axle and a roller bearing. A latch assembly including a first latch and a second latch can be mounted in the latch bore.
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公开(公告)号：US12140056B2
公开(公告)日：2024-11-12
申请号：US18255068
申请日：2021-11-26
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： Emanuele Raimondi , Massimo D'Amore
Abstract: A switchable rocker arm (1, 2, 3, 4) can comprise a main body (10, 11) configured to rotate around a rocker shaft. The main body can comprise a valve end (102), and a cam end (103) comprising a piston bore (135, 136). A second body (21, 22, 23, 24) can comprise a pivot portion (2140, 2240, 2340, 2440), a cam-receiving transfer portion (2130, 2230, 2330, 2430), and a latch bore (2132) through the transfer portion. A latch assembly (60) can be mounted in the latch bore. A piston assembly (50) can be mounted in the piston bore.
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公开(公告)号：US12037929B2
公开(公告)日：2024-07-16
申请号：US17613667
申请日：2020-05-22
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Massimo D'Amore , Jeffrey R. Brown , Ramy Rezkalla , Matthew A. Vance , Andrei D. Radulescu , Brandon J. Elliott
CPC classification number: F01L1/185 , F01L13/0005 , F01L13/0036 , F01L2001/186 , F01L1/46 , F01L2001/467 , F01L2013/001 , F01L2301/00 , F01L2303/00 , F01L2305/02
Abstract: A switching roller finger follower (SRFF) for valve actuation includes an outer arm (16), a first inner arm (12), a bearing axle (50) and a latch pin (26). The outer arm (16) is formed of a metal stamping, and is pivotally coupled to a main axle (40). The first inner arm (12) is coupled to the main axle (40) and is pivotably secure to the outer arm. The bearing axle (50) extends through the outer arm and the first inner arm. The bearing axle supports a roller (20) thereon. The latch pin (26) is slidably disposed in the outer arm (16) and is movable between at least a first position where the outer arm (16) and the first inner arm (12) are coupled for concurrent rotation and a second position wherein one of the outer arm and the first inner arm are configured to rotate relative to the other arm.
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公开(公告)号：US20240011419A1
公开(公告)日：2024-01-11
申请号：US18255068
申请日：2021-11-26
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： Emanuele Raimondi , Massimo D'Amore
IPC: F01L1/18
CPC classification number: F01L1/182 , F01L2001/467
Abstract: A switchable rocker arm (1, 2, 3, 4) can comprise a main body (10, 11) configured to rotate around a rocker shaft. The main body can comprise a valve end (102), and a cam end (103) comprising a piston bore (135, 136). A second body (21, 22, 23, 24) can comprise a pivot portion (2140, 2240, 2340, 2440), a cam-receiving transfer portion (2130, 2230, 2330, 2430), and a latch bore (2132) through the transfer portion. A latch assembly (60) can be mounted in the latch bore. A piston assembly (50) can be mounted in the piston bore.
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公开(公告)号：US20220228516A1
公开(公告)日：2022-07-21
申请号：US17613667
申请日：2020-05-22
Applicant: Eaton Intelligent Power Limited
Inventor： Emanuele Raimondi , Massimo D'Amore , Jeffrey R. Brown , Ramy Rezkalla , Matthew A. Vance , Andrei D. Radulescu , Brandon J. Elliott
Abstract: A switching roller finger follower (SRFF) for valve actuation includes an outer arm (16), a first inner arm (12), a bearing axle (50) and a latch pin (26). The outer arm (16) is formed of a metal stamping, and is pivotally coupled to a main axle (40). The first inner arm (12) is coupled to the main axle (40) and is pivotably secure to the outer arm. The bearing axle (50) extends through the outer arm and the first inner arm. The bearing axle supports a roller (20) thereon. The latch pin (26) is slidably disposed in the outer arm (16) and is movable between at least a first position where the outer arm (16) and the first inner arm (12) are coupled for concurrent rotation and a second position wherein one of the outer arm and the first inner arm are configured to rotate relative to the other arm.
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