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1422 条记录 (耗时 0.028 秒)

    Internal combustion engine with camshaft valve phase variation device
    1.
    发明授权
    Internal combustion engine with camshaft valve phase variation device 有权

    公开(公告)号：US11939891B2

    公开(公告)日：2024-03-26

    申请号：US17641727

    申请日：2020-09-11

    申请人： PIAGGIO & C. S.P.A.

    发明人： Walter Mariotti

    IPC分类号： F01L1/344 ,  F01L1/02 ,  F01L1/047 ,  F01L1/053 ,  F01L1/26 ,  F02D13/02

    CPC分类号： F01L1/344 ,  F01L1/02 ,  F01L1/022 ,  F01L1/026 ,  F01L1/047 ,  F01L1/053 ,  F01L1/26 ,  F02D13/0215 ,  F01L2001/0537

    摘要： A combustion engine for a vehicle includes a first centrifugal device for varying timing of a first plurality of suction or relief valves with respect to the drive shaft. A driving disc is mounted idle on a first camshaft which controls the valves, and at least one driven disc is integral with the camshaft. Drive elements for transmitting motion from the driving disc to the driven disc are interposed between the two discs causing a relative rotation of the driven disc with respect to the driving disc when the rotation speed of the discs exceeds a predetermined threshold. A distribution system connects the drive shaft with the driving disc so as to cause the rotation thereof. A second gear meshes with a first gear so that rotation of the driving disc mounted on the first camshaft causes the rotation of the second camshaft to control other valves of the engine.

    Hydraulic tensioner with external pin and ratchet mechanism
    2.
    发明授权
    Hydraulic tensioner with external pin and ratchet mechanism 有权

    公开(公告)号：US11828206B1

    公开(公告)日：2023-11-28

    申请号：US18055020

    申请日：2022-11-14

    申请人： BorgWarner, Inc.

    发明人： Paul Freemantle ,  Dale N Smith

    IPC分类号： F01L1/24 ,  F16H7/18 ,  F01L1/02 ,  F16H7/08

    CPC分类号： F01L1/24 ,  F01L1/022 ,  F16H7/18 ,  F16H2007/0812

    摘要： A hydraulic tensioner having a piston sliding around an outside surface of a pin or rod, so that the high pressure chamber for chain control is created by the area between the piston internal diameter and the rod outside diameter. A spring around the outside of the rod presses against the bottom of the piston, biasing the piston outward during low oil pressure conditions. Preferably, the piston is steel and the rod is aluminum, the reverse of prior art designs, which means that as temperature increases, the piston to bore clearance reduces. This can offset the oil viscosity reduction and maintain the same performance over operating temperatures.

    Driving force transmission system for engine
    6.
    发明授权
    Driving force transmission system for engine 有权

    公开(公告)号：US10006535B2

    公开(公告)日：2018-06-26

    申请号：US15219468

    申请日：2016-07-26

    申请人： MAZDA MOTOR CORPORATION

    发明人： Michihiro Yamauchi

    IPC分类号： F16H7/00 ,  F16D3/00 ,  F16H55/14 ,  F16H55/36 ,  F16H55/30 ,  F16H7/06 ,  F01L1/02 ,  F02M39/02 ,  F01L1/344

    CPC分类号： F16H55/30 ,  F01L1/022 ,  F01L1/344 ,  F02M39/02 ,  F16H7/06 ,  F16H55/14 ,  F16H2055/306

    摘要： A driving force transmission system for an engine is provided with a crank sprocket mounted on a crankshaft, cam sprockets mounted on camshafts, an intermediate shaft disposed between the crankshaft and the camshafts, a dual sprocket mounted on the intermediate shaft, and including a first sprocket and a second sprocket facing each other in a state that the first and second sprockets are rotatable relative to each other, a first endless transmission member wound around the crank sprocket and the first sprocket, and a second endless transmission member wound around the cam sprocket and the second sprocket. The dual sprocket includes a damping portion for connecting the first and second sprockets. The damping portion is configured to exert a resilient force in a rotational direction of the first and second sprockets.

    Valve timing controller, lock jig for valve timing controller, and production method of valve timing controller
    9.
    发明授权
    Valve timing controller, lock jig for valve timing controller, and production method of valve timing controller 有权

    公开(公告)号：US09856761B2

    公开(公告)日：2018-01-02

    申请号：US15083781

    申请日：2016-03-29

    申请人： DENSO CORPORATION

    发明人： Akira Iwasaki

    IPC分类号： F01L1/34 ,  F01L1/352 ,  F01L1/02

    CPC分类号： F01L1/352 ,  F01L1/022 ,  F01L2103/01 ,  F01L2820/032

    摘要： A valve timing controller includes a first housing; a second housing fixed to the first housing; a driven rotor inside of a driving rotor defined by the first housing and the second housing; a revolving actuator disposed on an extension of an axial direction of the driven rotor; a deceleration mechanism; and an engaging part that is engaged with a lock jig locking a relative rotation between the driving rotor and an input rotor of the deceleration mechanism in advance of assembling the valve timing controller to an internal-combustion engine. The engaging part is located on a radially inner side compared with an insertion part of the revolving actuator inserted in a hole of a cover component of the internal-combustion engine.