Patents by Inventor Marco ALESSANDRIA
Marco ALESSANDRIA 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).
-
Patent number: 11454139Abstract: A method for setting lash on a rocker arm assembly having a lost motion stroke includes: providing a rocker arm having a lost motion shaft including a collar, the lost motion shaft being biased toward a valve bridge by a lost motion spring, the lost motion shaft being translatable along a bore defined in the rocker arm; inserting a feeler gage in an area between the collar and the rocker arm; and adjusting an adjusting screw until a desired lash is attained.Type: GrantFiled: July 18, 2017Date of Patent: September 27, 2022Assignee: Eaton Intelligent Power LimitedInventor: Marco Alessandria
-
Patent number: 11225887Abstract: 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: November 29, 2019Date of Patent: January 18, 2022Assignee: Eaton Intelligent Power LimitedInventors: Majo Cecur, Marco Alessandria, Nicola Andrisani
-
Patent number: 10895180Abstract: A valve control device for controlling the stroke of a valve of a combustion engine includes: a first body part and a second body part, co-axially arranged, rotatably arranged relative to each other and axially displaceable between a first axial relative position and a second axial relative position; a spring for urging the first body part and the second body part away from each other; wherein the first and second body part have both axial surfaces facing each other and provided with cams evenly distributed along the circumference of the axial surface and wherein the pitch of the cams on both axial surfaces is equal; and a locking pin arranged in axial direction through the first body and extending on both sides, wherein one end of the locking pin extends through a cam.Type: GrantFiled: February 12, 2016Date of Patent: January 19, 2021Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Marco Alessandria, Massimo D'Amore
-
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
-
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
-
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
-
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
-
Publication number: 20190234246Abstract: A method for setting lash on a rocker arm assembly having a lost motion stroke includes: providing a rocker arm having a lost motion shaft including a collar, the lost motion shaft being biased toward a valve bridge by a lost motion spring, the lost motion shaft being translatable along a bore defined in the rocker arm; inserting a feeler gage in an area between the collar and the rocker arm; and adjusting an adjusting screw until a desired lash is attained.Type: ApplicationFiled: July 18, 2017Publication date: August 1, 2019Inventor: Marco ALESSANDRIA
-
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
-
Publication number: 20180023426Abstract: A valve control device for controlling the stroke of a valve of a combustion engine includes: a first body part and a second body part, co-axially arranged, rotatably arranged relative to each other and axially displaceable between a first axial relative position and a second axial relative position; a spring for urging the first body part and the second body part away from each other; wherein the first and second body part have both axial surfaces facing each other and provided with cams evenly distributed along the circumference of the axial surface and wherein the pitch of the cams on both axial surfaces is equal; and a locking pin arranged in axial direction through the first body and extending on both sides, wherein one end of the locking pin extends through a cam.Type: ApplicationFiled: February 12, 2016Publication date: January 25, 2018Inventors: Marco Alessandria, Massimo D'Amore
-
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
-
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
-
Publication number: 20160252021Abstract: A valve train assembly for operating a first valve of a first cylinder of an internal combustion engine has a rotatable earn shaft having a cam arrangement axially movable along the cam shaft so that the valve train assembly is selectively configurable in a first configuration and a second configuration. In use, when the valve train assembly is in the first configuration the first valve of the first cylinder is operated in response to the first cam arrangement as the cam shaft rotates to provide a corresponding valve event in each of a plurality of successive cylinder cycles, and when the valve train assembly is in the second configuration the first valve of the first cylinder is operated in response to the first cam arrangement as the cam shaft rotates to provide a corresponding valve event in every other cylinder cycle of a plurality of successive cylinder cycles.Type: ApplicationFiled: October 7, 2014Publication date: September 1, 2016Inventors: Majo CECUR, Marco ALESSANDRIA, Emanuele RAIMONDI
-
Publication number: 20160237863Abstract: A cam shifting arrangement for shifting at least a first cam piece axially along a camshaft of a valve train assembly of an internal combustion engine to selectively position the cam piece in at least a first axial position or a second axial position on the cam shaft includes a shifting member arranged substantially parallel with the cam shaft and moveable to cause the first cam piece to be moved between the first axial position and the second axial position.Type: ApplicationFiled: October 7, 2014Publication date: August 18, 2016Applicant: EATON SRLInventors: Majo CECUR, Marco ALESSANDRIA, Emanuele RAIMONDI, Tomiska LUBOS
-
Patent number: D808872Type: GrantFiled: September 11, 2015Date of Patent: January 30, 2018Assignee: Eaton S.r.L.Inventors: Majo Cecur, Nicola Andrisani, Marco Alessandria
-
Patent number: D839310Type: GrantFiled: September 11, 2015Date of Patent: January 29, 2019Assignee: Eaton Intelligent Power LimitedInventor: Marco Alessandria