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    DISCRETE LOST MOTION DEVICE
    1.
    发明公开
    DISCRETE LOST MOTION DEVICE 审中-公开

    公开(公告)号：US20240125254A1

    公开(公告)日：2024-04-18

    申请号：US18484045

    申请日：2023-10-10

    Applicant: Jacobs Vehicle Systems, Inc.

    Inventor： G. Michael GRON, Jr. ,  Bruce A. SWANBON ,  John MANDELL ,  Marc B. SILVA ,  Tyler HINES ,  Matei ALEXANDRU ,  Austen P. METSACK ,  Gabriel S. ROBERTS ,  P. Douglas AUBIN

    IPC: F01L1/24

    CPC classification number: F01L1/2405

    Abstract: A discrete lost motion device for use in a valve train of an internal combustion engine comprises a housing having a housing bore extending longitudinally into the housing and a second end having a housing contact surface configured to engage a corresponding contact surface of a first valve train component. A plunger slidably is disposed in the housing bore is controllable between a first state in which the plunger rigidly extends out of the housing bore and a second state in which the plunger is permitted to reciprocate within the housing bore, the plunger further comprising an end having a plunger contact surface configured to engage a corresponding contact surface of a second valve train component. The housing contact surface and the plunger contact surface are configured to support the discrete lost motion device between the first and second valve train components.

    Support element
    4.
    发明授权
    Support element 有权

    公开(公告)号：US10066517B2

    公开(公告)日：2018-09-04

    申请号：US15308994

    申请日：2015-03-31

    Applicant: Schaeffler Technologies AG & Co. KG

    Inventor： Jurgen Kretschmer ,  Peter Sailer ,  Wolfgang Christgen ,  Michael Kugler ,  Jochen Tovar ,  Max Schafer

    IPC: F01L1/46 ,  F01L1/24 ,  F01L13/00 ,  F01L1/14

    CPC classification number: F01L1/2405 ,  F01L1/14 ,  F01L1/46 ,  F01L13/0005 ,  F01L2001/2444

    Abstract: A double-flow hydraulic support element for a switchable finger lever of a valve train of an internal combustion engine is provided. A piston is arranged in an axial bore of the housing of the support element in an axially movable manner, and the piston includes a hollow cylindrical pressure part and a cup-shaped working part. A head of the pressure part is used as a support for the finger lever and projects beyond the housing edge, and an opening for the flow of a hydraulic medium is formed in the end face of the head. The housing has a first passage and a second passage axially spaced from the first passage for the hydraulic medium. The support element has a hydraulic play compensation device with a ball non-return valve for the finger lever. In order to achieve an optimal actuation of the coupling element, a sleeve which is closed on one side is inserted into the pressing part; the closed end of the sleeve reaches the region of an outer annular groove in a sealing manner below the dome-shaped head of the pressing part; a storage space for supplying the play compensation device with the hydraulic medium is formed radially within and axially outside of the sleeve, in the pressure part, and in the working part of the piston; the storage space is connected to the first passage in the housing via a passage opening in the working part; an actuation space formed between the sleeve and the pressure part of the piston for hydraulically supplying the coupling device is connected to the second passage in the housing via a radial passage opening in the pressure part; and the volume of the storage space is substantially greater than the volume of the actuation space.

    VARIABLE VALVE ACTUATION DEVICE FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    VARIABLE VALVE ACTUATION DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20180179922A1

    公开(公告)日：2018-06-28

    申请号：US15833433

    申请日：2017-12-06

    Applicant: Honda Motor Co., Ltd.

    Inventor： Kaori Takehana ,  Yukio Konishi ,  Chikara Tanaka

    IPC: F01L13/00

    CPC classification number: F01L13/0036 ,  F01L1/143 ,  F01L1/185 ,  F01L1/2405 ,  F01L13/0005 ,  F01L2001/467 ,  F01L2105/00 ,  F01L2107/00

    Abstract: A variable valve actuation device includes a plurality of valve lifter. Each valve lifter slidable in a lifter support hole between an upper position and a lower position. A valve rest recess communicating with a valve rest chamber opens out at an outer circumferential surface of the valve lifter, and a valve rest supply port of a valve rest passage opens out at an inner circumferential surface of the lifter support hole in such a positional relationship that the valve rest passage and the valve rest chamber communicate with each other when the valve lifter is at the upper position, and continue to communicate with each other until the valve lifter has moved downward to a shut-off position located at a prescribed part of a down stroke from the upper position. The communication between the valve rest passage and the valve rest chamber shut off at the shut-off position.

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