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公开(公告)号：US10371016B2
公开(公告)日：2019-08-06
申请号：US15577814
申请日：2016-06-06
Applicant: Eaton Corporation
Inventor： James Edward McCarthy, Jr. , Mark Allan Juds , Douglas Anthony Hughes , Nicholas Peter Gillette , Matthew Richard Busdiecker
Abstract: An internal combustion engine includes a cam-actuated rocker arm assembly with a solenoid-actuated latch that provides for cylinder deactivation or variable valve actuation. The solenoid is in a position where its inductance varies significantly in relation to the position of a latch pin as it translates between latching and non-latching configurations. A sensor is positioned to monitor a current or a voltage in a circuit that includes the solenoid. The sensor data is analyzed to provide diagnostic information relating to the operation of the rocker arm assembly.
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Patent Agency Ranking
公开(公告)号：US20180163577A1
公开(公告)日：2018-06-14
申请号：US15577814
申请日：2016-06-06
Applicant: Eaton Corporation
Inventor： James Edward McCarthy, Jr. , Mark Allan Juds , Douglas Anthony Hughes , Nicholas Peter Gillette , Matthew Richard Busdiecker
CPC classification number: F01L1/185 , F01L1/18 , F01L13/0005 , F01L2001/186 , F01L2013/001 , F01L2105/00 , F01L2800/11 , F01L2810/03 , F01L2820/02 , F02D41/221 , F02D2041/001 , F02D2041/0012 , F02D2041/2058 , Y02T10/40
Abstract: An internal combustion engine includes a cam-actuated rocker arm assembly with a solenoid-actuated latch that provides for cylinder deactivation or variable valve actuation. The solenoid is in a position where its inductance varies significantly in relation to the position of a latch pin as it translates between latching and non-latching configurations. A sensor is positioned to monitor a current or a voltage in a circuit that includes the solenoid. The sensor data is analyzed to provide diagnostic information relating to the operation of the rocker arm assembly.
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公开(公告)号：US11002156B2
公开(公告)日：2021-05-11
申请号：US15432026
申请日：2017-02-14
Applicant: Eaton Corporation
Inventor： Douglas Anthony Hughes , Matthew Richard Busdiecker , Dale Arden Stretch , Mark Allan Juds
Abstract: An internal combustion engine includes a valvetrain having a rocker arm assembly including a rocker arm on which a latch pin is mounted. An actuator for the latch pin, including an electromagnet, is mounted separately from the rocker arm. Therefore, the rocker arm is able to move independently from the electromagnet. The electromagnet is operative to cause the latch pin to actuate through magnetic flux following a magnetic circuit that passes through the rocker arm. Mounting the electromagnet apart from the rocker arm allows wires powering the electromagnet to be held in relatively static positions. The magnetic circuit is arranged to bring magnetic flux into the latch pin, or a co-acting part, within the volume of the rocker arm. This enables a compact design that is suitable for installation in engines where the available space under the valve cover may be very limited.
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公开(公告)号：US10662826B2
公开(公告)日：2020-05-26
申请号：US16342362
申请日：2017-10-13
Applicant: EATON CORPORATION
Abstract: A method of operating an internal combustion engine that includes a valvetrain having a rocker arm assembly including a rocker arm on which a latch pin is mounted. An actuator for the latch pin, including an electromagnet, is mounted separately from the rocker arm. Rocker arm position information is obtained by gathering and analyzing data relating to a current or voltage in an electrical circuit that is operative to power the electromagnet. The rocker arm position information is used to perform a diagnostic.
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公开(公告)号：US20190257221A1
公开(公告)日：2019-08-22
申请号：US16342362
申请日：2017-10-13
Applicant: EATON CORPORATION
Abstract: A method of operating an internal combustion engine that includes a valvetrain having a rocker arm assembly including a rocker arm on which a latch pin is mounted. An actuator for the latch pin, including an electromagnet, is mounted separately from the rocker arm. Rocker arm position information is obtained by gathering and analyzing data relating to a current or voltage in an electrical circuit that is operative to power the electromagnet. The rocker arm position information is used to perform a diagnostic.
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公开(公告)号：US20170183982A1
公开(公告)日：2017-06-29
申请号：US15432026
申请日：2017-02-14
Applicant: Eaton Corporation
CPC classification number: F01L1/185 , F01L1/24 , F01L1/267 , F01L13/0005 , F01L2001/186 , F01L2001/187 , F01L2101/00 , F01L2105/00 , F01L2820/03
Abstract: An internal combustion engine includes a valvetrain having a rocker arm assembly including a rocker arm on which a latch pin is mounted. An actuator for the latch pin, including an electromagnet, is mounted separately from the rocker arm. Therefore, the rocker arm is able to move independently from the electromagnet. The electromagnet is operative to cause the latch pin to actuate through magnetic flux following a magnetic circuit that passes through the rocker arm. Mounting the electromagnet apart from the rocker arm allows wires powering the electromagnet to be held in relatively static positions. The magnetic circuit is arranged to bring magnetic flux into the latch pin, or a co-acting part, within the volume of the rocker arm. This enables a compact design that is suitable for installation in engines where the available space under the valve cover may be very limited.
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