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1.发明公开公开(公告)号：US20240200475A1
公开(公告)日：2024-06-20
申请号：US18555020
申请日：2022-04-14
CPC分类号： F01L1/2416 , F01L1/181 , F01L1/46 , F01L2001/467 , F01L13/0005 , F01L2013/001 , F01L13/06
摘要： A switchable castellation assembly can include a lost motion shaft, the lost motion shaft being configured to transfer a lift profile to a valve end. A switchable castellation device can comprise a rotatable first spline bushing and a spline body, wherein the first spline bushing can be changed between a locked position and an unlocked position, and a lost motion can be obtained by sliding the lost motion shaft.
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公开(公告)号：US20180363518A1
公开(公告)日：2018-12-20
申请号：US15781183
申请日：2016-12-05
摘要： A valve train assembly includes valves having a valve stem; a main camshaft having main cams corresponding to the valves; main rocker arms corresponding to the valves; an auxiliary cam arranged on the main camshaft; at an auxiliary cam follower following the auxiliary cam, the auxiliary cam follower being movably arranged on a main rocker arm between a first and second position; and a latch on a main rocker arm for locking the auxiliary cam follower in the first position. A rotatable control rod controlling the latch is between the first and the second positions. The control rod includes a transmission element configured to convert torque in the control rod into a control force to control movement of the latch.
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公开(公告)号：US20230407771A1
公开(公告)日：2023-12-21
申请号：US18251253
申请日：2021-11-10
CPC分类号： F01L1/2416 , F01L1/181 , F01L13/0005 , F01L2001/186 , F01L2001/467
摘要： 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：US20200308993A1
公开(公告)日：2020-10-01
申请号：US16300593
申请日：2017-04-21
摘要： A rocker arm for a valve train assembly includes: a first body; a second body mounted for pivotal movement with respect to the first body; and a latching arrangement. The latching arrangement includes a latch pin drivable in response to an external actuator from a first position in which the first body and the second body are un-latched to a second position in which the latch pin latches the first body and the second body together. The latching arrangement includes a piston member and a first biasing member. The piston member is arranged such that if the external actuator attempts to cause the latch pin to be driven from the first position to the second position at a time when the latch pin is prevented from being driven, the piston member moves to bias the biasing member so that the biasing member urges the latch pin to the second position.
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公开(公告)号：US20210040869A1
公开(公告)日：2021-02-11
申请号：US16978210
申请日：2019-03-06
发明人： Nicola ANDRISANI , Jan KINDERMANN , Mirko GUASCHINO , Yuriy MYSAK
摘要： An actuation apparatus for actuating a component of a switchable valve train device of an internal combustion engine including: a shaft; an actuation lever mounted on the shaft for pivotal motion of the actuation lever between a first position for actuation of the component and a second position for de-actuation of the component; and a biasing means for urging the actuation lever from the second position towards the first position. In use, the biasing means is biased when an actuation source attempts to cause the actuation lever to be in the first position when the component is non-actuatable, such that the biasing means causes the actuation lever to pivot from the second position to the first position, thereby to actuate the component when the component becomes actuatable again.
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公开(公告)号：US20200040775A1
公开(公告)日：2020-02-06
申请号：US16492173
申请日：2017-10-24
摘要： 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：US20240263572A1
公开(公告)日：2024-08-08
申请号：US18564703
申请日：2022-05-27
CPC分类号： F01L1/46 , F01L1/181 , F01L2001/186 , F01L13/0005 , F01L2013/001 , F01L13/06
摘要： A pivoting bracket assembly for a valvetrain comprises a pivot pin, a first bracket comprising a first mounting area rotatable about the pivot pin and a first reaction arm extending away from the first mounting area, and a second bracket comprising a second mounting area rotatable about the pivot pin and a second reaction arm extending away from the first mounting area. A compliance member comprises a receiving leg biased against the first bracket and a transfer leg biased against the second bracket. A bias member comprises a first leg biased against the second bracket and a second leg configured to mount the bias member relative to the pivot pin. The bias member is configured to oppose bias forces from the compliance member. An actuator assembly can be installed so that a rotatable shaft is perpendicular to the pivot pin.
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公开(公告)号：US20240263569A1
公开(公告)日：2024-08-08
申请号：US18567111
申请日：2022-06-10
发明人： Nicola ANDRISANI , Majo CECUR
摘要： A hydraulic capsule is provided for use in connection with an engine decompression brake or other variable valvetrain lifts. The hydraulic capsule comprises a main body having a latch pin, a first housing defined by a first outer diameter, an upper chamber defined by the first housing, and a first biasing member, and the latch pin is disposed inside the upper chamber and held by the first biasing member; a second body comprising a plunger, a second housing defined by a second outer diameter, a lower chamber defined by the second housing, and means for restricting the plunger at the bottom of the lower chamber, and the plunger is slidably moveable up and down inside the second housing; a biasing means, wherein the biasing means keeps the main body and the second body in contact; and a check assembly. The first outer diameter and the second diameter can be chosen according to manufacturing specifications and can be the same or different.
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公开(公告)号：US20240209758A1
公开(公告)日：2024-06-27
申请号：US18557150
申请日：2022-04-26
发明人： Long WANG , Nicola ANDRISANI
摘要： A combined exhaust and engine brake rocker arm assembly (20) configured to selectively open first and second exhaust valves (26, 28) includes a rocker arm body (40), an exhaust rocker arm assembly (16) formed in the rocker arm body (40), and a lost motion spigot assembly (56) including an adjustment nut (70) and guide (62) configured to receive a shaft assembly (60) for adjusting a lash of the lost motion spigot assembly (56). The shaft assembly is disposed within a bore (92) of the adjustment nut below an upper surface thereof, and an engine brake rocker arm assembly (18) is formed in the rocker arm body (40) and configured to operate in a collapse mode and a rigid mode. The lost motion spigot assembly (56) is configured to selectively engage a valve bridge (52) to open the first and second exhaust valves (26, 28), and the engine brake rocker arm assembly (18) is configured to selectively engage the valve bridge (52) to open only the first exhaust valve (26).
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10.发明申请公开(公告)号：US20210189917A1
公开(公告)日：2021-06-24
申请号：US16492176
申请日：2017-10-24
摘要： 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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