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公开(公告)号：US10054014B1
公开(公告)日：2018-08-21
申请号：US15437039
申请日：2017-02-20
发明人： Joseph M. West , Ian R. Jermy
摘要： A rocker arm includes an outer arm; an inner arm which selectively pivots relative to the outer arm; and a latching arrangement which switches the rocker arm between a coupled state and a decoupled state. The latching arrangement includes a connecting bore which is terminated by a connecting bore floor; an oil supply bore which opens into the connecting bore through the connecting bore floor; a lock pin bore which opens into the connecting bore through the connecting bore floor; a lock pin within the lock pin bore where the lock pin prevents the inner arm from pivoting in the coupled state and where the lock pin permits the inner arm to pivot in the coupled state; and a retainer within the connecting bore which defines a chamber within the connecting bore which provides fluid communication between the oil supply bore and the lock pin bore.
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公开(公告)号：US10544711B1
公开(公告)日：2020-01-28
申请号：US16123421
申请日：2018-09-06
摘要： A rocker arm includes an outer arm having a first wall and a second wall and an inner arm which selectively pivots relative to the outer arm about a pivot shaft axis based on positioning of a lock pin. A lost motion spring includes an outer arm tang grounded to the outer arm and an inner arm tang grounded to the inner arm. A roller shaft is supported by the inner arm and extends toward the first wall. The roller shaft carries a roller which follows a camshaft. A roller retainer is carried by the roller shaft and is located between the roller and the first wall and includes a surface with which the inner arm tang is engaged to ground the lost motion spring to the inner arm through the roller shaft.
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公开(公告)号：US20180238198A1
公开(公告)日：2018-08-23
申请号：US15437028
申请日：2017-02-20
发明人： Chad E. Uckermark , Joseph M. West
CPC分类号： F01L1/18 , F01L1/047 , F01L1/185 , F01L1/205 , F01L1/462 , F01L13/0005 , F01L13/0015 , F01L13/0036 , F01L2001/186 , F01L2001/467 , F01L2103/00 , F01L2105/02 , Y10T74/20882 , Y10T74/2107
摘要： A rocker arm includes an outer arm defining a stop aperture with a stop surface; an inner arm which selectively pivots relative to the outer arm; a latching mechanism which switches the rocker arm between a coupled state in which the inner arm is prevented from pivoting relative to the outer arm in a first direction and a decoupled state in which the inner arm pivots relative to the outer arm; a lost motion spring which biases the inner arm to pivot relative to the outer arm in a second direction which is opposite from the first direction; and a stop pin fixed to the inner arm and extending into the stop aperture such that the stop pin is circumferentially surrounded by the stop surface and such that the stop pin within the stop aperture limits the extent to which the inner arm pivots relative to the outer arm.
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公开(公告)号：US10465566B2
公开(公告)日：2019-11-05
申请号：US15690577
申请日：2017-08-30
发明人： Joseph M. West , Chad E. Uckermark
摘要： A rocker arm includes an outer arm defining a bore; an inner arm which pivots relative to the outer arm, the inner arm defining a stop surface; a lost motion spring which biases the inner arm to pivot relative to the outer arm in a first direction; and a lock pin that slides within the bore between a coupled position in which the lock pin prevents the inner arm from pivoting relative to the outer arm past a predetermined position in a second direction which is opposite of the first direction and a decoupled position in which the lock pin permits the inner arm to pivot relative to the outer arm past the predetermined position in the second direction; such that the lock pin and the stop surface act together to limit the extent to which the inner arm pivots relative to the outer arm in the first direction.
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公开(公告)号：US10253657B2
公开(公告)日：2019-04-09
申请号：US15437028
申请日：2017-02-20
发明人： Chad E. Uckermark , Joseph M. West
摘要： A rocker arm includes an outer arm defining a stop aperture with a stop surface; an inner arm which selectively pivots relative to the outer arm; a latching mechanism which switches the rocker arm between a coupled state in which the inner arm is prevented from pivoting relative to the outer arm in a first direction and a decoupled state in which the inner arm pivots relative to the outer arm; a lost motion spring which biases the inner arm to pivot relative to the outer arm in a second direction which is opposite from the first direction; and a stop pin fixed to the inner arm and extending into the stop aperture such that the stop pin is circumferentially surrounded by the stop surface and such that the stop pin within the stop aperture limits the extent to which the inner arm pivots relative to the outer arm.
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公开(公告)号：US10533463B1
公开(公告)日：2020-01-14
申请号：US16123469
申请日：2018-09-06
摘要： A rocker arm includes an outer arm having a first wall and a second wall and an inner arm which selectively pivots relative to the outer arm about a pivot shaft axis of a pivot shaft based on positioning of a lock pin. A lost motion spring includes an outer arm tang grounded to the outer arm and an inner arm tang grounded to the inner arm. A roller shaft is supported by the inner arm and extends toward the first wall. The roller shaft carries a roller which follows a camshaft. A roller retainer is carried by the roller shaft and is located between the roller and the first wall and includes a surface with which the inner arm tang is engaged to ground the lost motion spring to the inner arm, a roller shaft aperture containing the roller shaft, and a pivot shaft aperture containing the pivot shaft.
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公开(公告)号：US20190063267A1
公开(公告)日：2019-02-28
申请号：US15690577
申请日：2017-08-30
发明人： Joseph M. West , Chad E. Uckermark
IPC分类号： F01L1/18
CPC分类号： F01L1/18 , F01L1/185 , F01L13/0005 , F01L2001/186 , F01L2001/467 , F01L2013/105 , F01L2105/00
摘要： A rocker arm includes an outer arm defining a bore; an inner arm which pivots relative to the outer arm, the inner arm defining a stop surface; a lost motion spring which biases the inner arm to pivot relative to the outer arm in a first direction; and a lock pin that slides within the bore between a coupled position in which the lock pin prevents the inner arm from pivoting relative to the outer arm past a predetermined position in a second direction which is opposite of the first direction and a decoupled position in which the lock pin permits the inner arm to pivot relative to the outer arm past the predetermined position in the second direction; such that the lock pin and the stop surface act together to limit the extent to which the inner arm pivots relative to the outer arm in the first direction.
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公开(公告)号：US20180238199A1
公开(公告)日：2018-08-23
申请号：US15437039
申请日：2017-02-20
发明人： Joseph M. West , Ian R. Jermy
CPC分类号： F01L1/181 , F01L1/047 , F01L1/2416 , F01L2001/186
摘要： A rocker arm includes an outer arm; an inner arm which selectively pivots relative to the outer arm; and a latching arrangement which switches the rocker arm between a coupled state and a decoupled state. The latching arrangement includes a connecting bore which is terminated by a connecting bore floor; an oil supply bore which opens into the connecting bore through the connecting bore floor; a lock pin bore which opens into the connecting bore through the connecting bore floor; a lock pin within the lock pin bore where the lock pin prevents the inner arm from pivoting in the coupled state and where the lock pin permits the inner arm to pivot in the coupled state; and a retainer within the connecting bore which defines a chamber within the connecting bore which provides fluid communication between the oil supply bore and the lock pin bore.
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