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公开(公告)号：US11788439B2
公开(公告)日：2023-10-17
申请号：US17129356
申请日：2020-12-21
发明人： Andrei Dan Radulescu , Austin Robert Zurface , James R. Sheren , Anthony L. Spoor , Luigi Lia , Philip Michael Kline
CPC分类号： F01L1/185 , F01L1/18 , F01L13/0005 , F01L13/0015 , F01L13/0021 , F01L13/0036 , F01L1/053 , F01L1/2405 , F01L2001/0537 , F01L2001/186 , F01L2001/467 , F01L2305/00 , F01L2810/02 , Y10T74/20882 , Y10T74/2107
摘要： A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm to the outer arm at a first end of the inner arm and a first end of the outer arm, and a latch pin having a first position and a second position. The latch pin in the first position pivotally fixes the inner arm to the outer arm at a second end of each of the inner arm and a second end of the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. Two lost motion springs are respectively secured to mounts provided on the outer arm.
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公开(公告)号：US10890086B2
公开(公告)日：2021-01-12
申请号：US15710199
申请日：2017-09-20
发明人： Anthony L. Spoor , James R. Sheren
摘要： An apparatus includes a ball plunger post and a valve stem post extending upward from a base, the ball plunger post having a size and a shape of a hydraulic lift adjuster (HLA) of a predefined engine, and the valve stem post having a size and a shape of a valve stem of the predefined engine. The apparatus includes a fixture sized and shaped to receive a switching rocker arm assembly, the switching rocker arm assembly having a first end for pivoting and a second end for latching, and a latch with a latch pin fitting into a latch bore and a latch seat. The apparatus includes a latch rod for positioning within the latch bore to rest upon the latch seat, the latch rod having a hardness higher than that of the latch seat and a same diameter as the latch pin, and adapted for coining the latch seat.
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公开(公告)号：US12031459B2
公开(公告)日：2024-07-09
申请号：US17773832
申请日：2020-10-30
CPC分类号： F01L1/181 , F01L1/267 , F01L1/46 , F01L2001/186 , F01L2001/467
摘要： A rocker arm assembly can comprise a main rocker arm and a latch assembly. A latching arm can control the latch assembly and thereby control the extent to which a secondary rocker arm acts on the main rocker arm. The main rocker arm can comprise a main body configured to rotate around a rocker shaft, a valve end extending from the main body, a reaction end extending from the main body, and a latch bore. A bias pin can extend from the main body. The latch assembly can be configured to selectively rotate in the latch bore. The latch assembly can comprise a first latch end comprising a switch plate configured to receive actuation force on a first side and to receive bias force from the bias pin on a second side. A second latch end can comprise a first latch seat and a second latch seat.
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公开(公告)号：US20210131316A1
公开(公告)日：2021-05-06
申请号：US17129318
申请日：2020-12-21
发明人： Andrei Dan Radulescu , Austin Robert Zurface , James R. Sheren , Anthony L. Spoor , Luigi Lia , Philip Michael Kline
摘要： A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm and the outer arm at a first end of each of the inner arm and the outer arm, and a latch having a first position and a second position. The latch in the first position pivotally fixes the inner arm and the outer arm at a second end of each of the inner arm and the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. The latch is responsive to hydraulic pressure in a hydraulic fluid passage to selectively move to other of the first position and the second position. A lost motion spring is coupled to the inner arm.
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公开(公告)号：US20220356821A1
公开(公告)日：2022-11-10
申请号：US17773832
申请日：2020-10-30
摘要： A rocker arm assembly can comprise a main rocker arm and a latch assembly. A latching arm can control the latch assembly and thereby control the extent to which a secondary rocker arm acts on the main rocker arm. The main rocker arm can comprise a main body configured to rotate around a rocker shaft, a valve end extending from the main body, a reaction end extending from the main body, and a latch bore. A bias pin can extend from the main body. The latch assembly can be configured to selectively rotate in the latch bore. The latch assembly can comprise a first latch end comprising a switch plate configured to receive actuation force on a first side and to receive bias force from the bias pin on a second side. A second latch end can comprise a first latch seat and a second latch seat.
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公开(公告)号：US11486272B2
公开(公告)日：2022-11-01
申请号：US16975360
申请日：2019-02-21
摘要： A switching roller finger follower comprises an inner arm assembly. A pair of outer arms surround the inner arm assembly. A pivot axle connects the inner arm assembly to pivot with respect to the pair of outer arms from a starting position to a lost motion position. A latch assembly comprises a latch selectively movable from a latched position latching the inner arm assembly to move dependent with the outer arms and an unlatched position unlatching the inner arm assembly to pivot independent of the outer arms. A stop pin spans between the pair of outer arms and through an inner port in an axle of inner arm assembly. The stop pin comprises a clearance fit with the inner port, and the stop pin is configured pivotable independent of the outer arms. At least one return spring biases the stop pin toward the starting position.
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公开(公告)号：US20210131317A1
公开(公告)日：2021-05-06
申请号：US17129356
申请日：2020-12-21
发明人： Andrei Dan Radulescu , Austin Robert Zurface , James R. Sheren , Anthony L. Spoor , Luigi Lia , Philip Michael Kline
摘要： A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm and the outer arm at a first end of each of the inner arm and the outer arm, and a latch having a first position and a second position. The latch in the first position pivotally fixes the inner arm and the outer arm at a second end of each of the inner arm and the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. The latch is responsive to hydraulic pressure in a hydraulic fluid passage to selectively move to other of the first position and the second position. A lost motion spring is coupled to the inner arm.
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