Patents by Inventor Nicola Andrisani
Nicola Andrisani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10781725Abstract: 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.Type: GrantFiled: October 24, 2017Date of Patent: September 22, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Emanuele Raimondi, Nicola Andrisani, Alessio Lorenzon
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Publication number: 20200271023Abstract: 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.Type: ApplicationFiled: August 6, 2018Publication date: August 27, 2020Inventors: Emanuele Raimondi, Nicola Andrisani
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Publication number: 20200131945Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. An accumulator assembly can be disposed in the rocker arm and includes an accumulator piston that translates within the accumulator piston housing between closed and open positions. A predetermined amount of oil is stored in the accumulator assembly.Type: ApplicationFiled: December 30, 2019Publication date: April 30, 2020Applicant: Eaton SrlInventor: Nicola Andrisani
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Patent number: 10605131Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge. A pressure relief valve assembly can be configured to selectively release oil from the hydraulic lash adjuster assembly.Type: GrantFiled: September 18, 2014Date of Patent: March 31, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Publication number: 20200095910Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge.Type: ApplicationFiled: November 29, 2019Publication date: March 26, 2020Inventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Publication number: 20200040775Abstract: 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.Type: ApplicationFiled: October 24, 2017Publication date: February 6, 2020Inventors: Emanuele RAIMONDI, Nicola ANDRISANI, Alessio LORENZON
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Patent number: 10526935Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge.Type: GrantFiled: September 11, 2015Date of Patent: January 7, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Patent number: 10526926Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. An accumulator assembly can be disposed in the rocker arm and includes an accumulator piston that translates within the accumulator piston housing between closed and open positions. A predetermined amount of oil is stored in the accumulator assembly.Type: GrantFiled: November 16, 2017Date of Patent: January 7, 2020Assignee: Eaton SrlInventor: Nicola Andrisani
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Patent number: 10450908Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft that defines a pressurized oil supply conduit; a rocker arm for receiving the rocker shaft and to rotate around the rocker shaft, the rocker arm including an oil supply passage defined therein; a valve bridge for engaging a first exhaust valve and a second exhaust valve; a first plunger body movable between a first position and a second position, and that in the first position extends rigidly for cooperative engagement with the valve bridge; a check valve disposed on the rocker arm and including an actuator for selectively releasing pressure acting on the first plunger body, the actuator including a needle including a longitudinal disk portion and a disk portion; and an oil discharge circuit for to selectively depressurizing oil under the disk portion of the actuator.Type: GrantFiled: January 10, 2019Date of Patent: October 22, 2019Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Publication number: 20190145291Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft that defines a pressurized oil supply conduit; a rocker arm for receiving the rocker shaft and to rotate around the rocker shaft, the rocker arm including an oil supply passage defined therein; a valve bridge for engaging a first exhaust valve and a second exhaust valve; a first plunger body movable between a first position and a second position, and that in the first position extends rigidly for cooperative engagement with the valve bridge; a check valve disposed on the rocker arm and including an actuator for selectively releasing pressure acting on the first plunger body, the actuator including a needle including a longitudinal disk portion and a disk portion; and an oil discharge circuit for to selectively depressurizing oil under the disk portion of the actuator.Type: ApplicationFiled: January 10, 2019Publication date: May 16, 2019Inventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Publication number: 20190120090Abstract: A valve train assembly includes: a first group of one or more dual body rocker arms and a second group of one or more dual body rocker arms, the first group for controlling one or more valves of a first cylinder and the second group for controlling one or more valves of a second cylinder, each of the dual body rocker arms including a first body, a second body, and a latching arrangement for latching and unlatching the first body and the second body; and an actuator arrangement external to the dual body rocker arms for controlling the latching arrangement, the actuator arrangement including a shaft having a first set of one or more cams for controlling the latching arrangements of the first group of one or more dual body rocker arms and a second set of one or more cams for controlling the latching arrangements of the second group.Type: ApplicationFiled: April 21, 2017Publication date: April 25, 2019Inventors: Nicola Andrisani, Fabiano Contarin, Emanuele Raimondi, Majo Cecur, Alessio Lorenzon
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Patent number: 10260386Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft defining a pressurized oil supply conduit; a rocker arm that receives the rocker shaft and rotates around the rocker shaft, the rocker arm having an oil supply passage therein; a valve bridge that engages a first exhaust valve at a first foot and a second exhaust valve at a second foot; and a capsule assembly disposed on the rocker arm having a capsule body that moves between first and second capsule positions, wherein, in the first capsule position, the capsule body is in a retracted position in the rocker arm offset from the valve bridge, wherein, in the second capsule position, the capsule body extends rigidly for cooperative engagement with the valve bridge.Type: GrantFiled: March 7, 2016Date of Patent: April 16, 2019Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Nicola Andrisani, Alessio Courtial
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Publication number: 20190107011Abstract: A valve train assembly includes at least a number of exhaust valves; at least one camshaft with at least a pair of a primary lift cam and an engine brake lift cam. A number of rocker arms each include a cam follower for following one of the primary lift cam and the engine brake lift cam. One rocker arm includes a cam follower following an engine brake lift cam. The rocker arm is provided with an engine brake capsule. Various biasing assemblies are disclosed that cooperate with one of the rocker arms of which the cam follower follows an engine brake lift cam to accommodate mechanical lash.Type: ApplicationFiled: December 4, 2018Publication date: April 11, 2019Applicant: Eaton Intelligent Power LimitedInventors: Fabiano Contarin, Nicola Andrisani, Eric Yankovic, Mark VanWingerden, Matthew Vance, James E. McCarthy, JR., Michael Guzak
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Publication number: 20180363518Abstract: 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.Type: ApplicationFiled: December 5, 2016Publication date: December 20, 2018Inventors: Emanuele RAIMONDI, Nicola ANDRISANI, Gennaro BUONOCORE
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Publication number: 20180087412Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft defining a pressurized oil supply conduit; a rocker arm that receives the rocker shaft and rotates around the rocker shaft, the rocker arm having an oil supply passage therein; a valve bridge that engages a first exhaust valve at a first foot and a second exhaust valve at a second foot; and a capsule assembly disposed on the rocker arm having a capsule body that moves between first and second capsule positions, wherein, in the first capsule position, the capsule body is in a retracted position in the rocker arm offset from the valve bridge, wherein, in the second capsule position, the capsule body extends rigidly for cooperative engagement with the valve bridge.Type: ApplicationFiled: March 7, 2016Publication date: March 29, 2018Inventors: Nicola Andrisani, Alessio Courtial
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Publication number: 20180073401Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. An accumulator assembly can be disposed in the rocker arm and includes an accumulator piston that translates within the accumulator piston housing between closed and open positions. A predetermined amount of oil is stored in the accumulator assembly.Type: ApplicationFiled: November 16, 2017Publication date: March 15, 2018Applicant: Eaton SrlInventor: Nicola Andrisani
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Publication number: 20170276034Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge.Type: ApplicationFiled: September 11, 2015Publication date: September 28, 2017Inventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Publication number: 20170276035Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge. A pressure relief valve assembly can be configured to selectively release oil from the hydraulic lash adjuster assembly.Type: ApplicationFiled: September 18, 2014Publication date: September 28, 2017Inventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
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Patent number: 8573171Abstract: A valve control device for an internal combustion engine with an engine valve and a camshaft having a cam profile including a first lift profile is disclosed. The device includes a first body and second body. The device is configurable in first and second configurations. When in the first configuration, relative movement between the first and second body, caused when said first lift profile engages a cam engagement surface, inhibits a valve actuating linkage from actuating said engine valve. Embodiments of the device include a means which, when in the second configuration, prevents relative movement between the first and second bodies when the first lift profile engages the cam engagement surface to enable the valve actuating linkage to actuate said engine valve, and when the device is in the second configuration, the means may be arranged so substantially all of the force exerted as the valve is actuated is compressive.Type: GrantFiled: August 4, 2010Date of Patent: November 5, 2013Assignee: Eaton SRLInventors: Majo Cecur, Fabiano Contarin, Nicola Andrisani, Marco Querio
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Patent number: D808872Type: GrantFiled: September 11, 2015Date of Patent: January 30, 2018Assignee: Eaton S.r.L.Inventors: Majo Cecur, Nicola Andrisani, Marco Alessandria