公开(公告)号：US11193398B2

公开(公告)日：2021-12-07

申请号：US16415008

申请日：2019-05-17

Applicant: DENSO CORPORATION

Inventor： Yasuhiro Hamaoka ,  Tomoyuki Fukuyama

IPC: F01L1/344 ,  F01L1/356

Abstract: A friction member is clamped between a driven shaft of an internal combustion engine and a vane rotor and includes an oil passage hole. The oil passage hole communicates between a first oil passage of the driven shaft a second oil passage of the vane rotor. Each of positioning arrangements includes a primary engaging portion of the vane rotor and a secondary engaging portion of the friction member. The positioning arrangements are configured to limit relative rotation between the vane rotor and the friction member in a communicating state where the first oil passage and the second oil passage are communicated with each other through the oil passage hole.

公开(公告)号：US10920626B2

公开(公告)日：2021-02-16

申请号：US15897262

申请日：2018-02-15

Applicant: BorgWarner Inc.

Inventor： Daniel Brown

IPC: F01L1/344 ,  F01L1/352 ,  H02K11/215 ,  F02D13/02 ,  F01L1/356 ,  H02K7/116 ,  F02D41/00 ,  H02K29/08 ,  H02K7/14 ,  F01L1/047 ,  G01D5/14 ,  F01L1/053

Abstract: A system and method of controlling an angular position of a camshaft relative to an angular position of a crankshaft includes detecting rotational movement of an electric motor output shaft controlling a camshaft phaser; detecting rotational movement of the crankshaft; determining the relative difference between the rotational movement of the electric motor output shaft and the rotational movement of the crankshaft; and determining whether the angular position of the camshaft relative to the angular position of the crankshaft is advancing, retarding, or remaining constant.

公开(公告)号：US10808581B2

公开(公告)日：2020-10-20

申请号：US16318668

申请日：2017-07-11

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Shinji Urakawa

IPC: F01L1/344 ,  F01L13/08 ,  F01L1/356

Abstract: A valve timing control device includes: a first clearance being formed between a radial other side of the outer circumference surface of the first shaft portion, and a confronting end surface of a radial other side of the inner circumference surface of the sliding hole, a second clearance being formed between an outer circumference of the second shaft portion on a side of the first clearance, and a radial other side of the inner circumference surface of the lock recessed portion, a stepped surface being formed at a connection portion between the first shaft portion and the second shaft portion, and having a stepped width in a radial direction, and a width of the second clearance being substantially identical to the width of the stepped surface.

公开(公告)号：US10480424B2

公开(公告)日：2019-11-19

申请号：US15740555

申请日：2016-06-08

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Kuninaga Hatsugai ,  Kenji Sato

IPC: F01L1/344 ,  F02D13/02 ,  F01L1/356 ,  F01L1/02

Abstract: Provided is a valve timing control apparatus, for an internal combustion engine, capable of sufficiently draining hydraulic oil from between a pulley and a housing body. The pulley includes a through-hole extending axially therethrough at a position radially outward with respect to the outer peripheral surface of the housing body. The through-hole is formed so as to extend over a bottom portion and cylindrical portion of the pulley.

公开(公告)号：US10337363B2

公开(公告)日：2019-07-02

申请号：US15501954

申请日：2015-10-28

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Yoshiaki Yamakawa ,  Masaki Kobayashi

IPC: F01L1/344 ,  F01L1/356

Abstract: A valve opening and closing timing control apparatus includes a driving-side rotating body, a driven-side rotating body fixed to a camshaft by a bolt, a fluid pressure chamber, an intermediate lock mechanism, a lock flow passage bringing the working fluid to the intermediate lock mechanism, and an electromagnetic valve including a spool which is arranged at an inner portion of the bolt, the lock flow passage including a first flow passage which is arranged between the spool and a supply flow passage in a radial direction and which is connected to the supply flow passage, the lock flow passage including a second flow passage which is provided at the inner portion of the bolt in a penetrating manner in the radial direction and which brings the working fluid to flow between the spool and the intermediate lock mechanism.

公开(公告)号：US20190128149A1

公开(公告)日：2019-05-02

申请号：US16306744

申请日：2017-05-10

Applicant: Scania CV AB

Inventor： Daniel OLOVSSON ,  Mikael ERIKSSON

IPC: F01L1/344 ,  F15B15/12 ,  F01L1/356 ,  F16K3/20

Abstract: A control valve for use in a cam timing phaser arrangement is disclosed comprising a cylindrical valve body, a rotational shuttle element coaxially located within a recess of the valve body, and a blocking pin. When using in a cam timing phaser arrangement having a first phasing chamber and a second phasing chamber, the control valve when non-actuated acts as a double check valve, preventing flow between chambers. Actuation of the blocking pin limits rotation of the rotational shuttle element and results in the control valve allowing flow in a single flow direction between phasing chambers. The allowed direction of flow can be controlled by controlling the timing of the deployment of the blocking pin. A cam timing phaser arrangement, internal combustion engine, and vehicle comprising such a control valve are also disclosed.

公开(公告)号：US10174643B2

公开(公告)日：2019-01-08

申请号：US15806153

申请日：2017-11-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： You Sang Son ,  Ingee Suh ,  Kiyoung Kwon ,  In Sang Ryu ,  Kyoung Pyo Ha ,  Dongheon Park ,  Wootae Kim ,  Back Sik Kim ,  Seung Jae Lee

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047 ,  F01L1/26 ,  F01L1/356

Abstract: A continuous variable valve duration apparatus may include a camshaft, a cam device on which a cam is formed, of which the camshaft is inserted thereto and of which a relative phase angle with respect to the camshaft is variable, an internal bracket transmitting rotation of the camshaft to the cam device, a wheel housing in which the internal bracket is rotatably inserted and on which a guide groove parallel to the camshaft is formed, a control portion including a control shaft disposed parallel to the camshaft and inserted into the guide groove, and the control portion selectively rotating the control shaft for the relative position of the wheel housing with respect to the camshaft to be changed and a slider housing interposed between the control shaft and the guide groove.

公开(公告)号：US10138767B2

公开(公告)日：2018-11-27

申请号：US15264449

申请日：2016-09-13

Applicant: Hyundai Motor Company

Inventor： Kyung Mo Kim

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/047 ,  F01L1/18 ,  F01L1/053 ,  F01L1/356 ,  F01L1/20 ,  F01L1/26

Abstract: A continuous variable valve duration system may include a camshaft, a first cam portion including a first cam, of which a relative phase angle of the first cam with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the first cam portion, a slider housing on which a control slot is formed, the slider housing being rotatable around a pivot shaft, a first rocker arm including a first end contacting the first cam and a second end connected to a first valve, a rocker shaft to which the first rocker arm is rotatably connected, and onto which an eccentric shaft inserted into the control slot is formed, a duration controller configured to rotate the rocker shaft for the slider housing to move with respect to the camshaft, and an operation mode controller configured to change a position of the pivot shaft.

公开(公告)号：US10047683B2

公开(公告)日：2018-08-14

申请号：US15257107

申请日：2016-09-06

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC: F02D13/02 ,  F02D41/00 ,  F02D41/26 ,  F02M35/104 ,  F01L13/00 ,  F01L1/34 ,  F01L1/356 ,  F01L1/047 ,  F01L1/053 ,  F01L1/344

Abstract: A method for controlling valve timing of an engine may include: classifying control regions; applying a maximum duration to an intake valve and controlling a valve overlap in a first control region; applying the maximum duration to the intake valve and an exhaust valve in a second control region; controlling a manifold absolute pressure (MAP) of an intake manifold to be maintained constant in a third control region; controlling a wide open throttle valve (WOT) and creating a valve overlap by reducing interference of exhaust in a fourth control region; and controlling a wide open throttle valve (WOT) and controlling an intake valve closing timing based on the engine speed. In particular, the control regions are classified by a controller based on an engine load and an engine speed compared with predetermined values, respectively.

公开(公告)号：US10006377B2

公开(公告)日：2018-06-26

申请号：US15278818

申请日：2016-09-28

Applicant: HYUNDAI MOTOR COMPANY

Inventor： You Sang Son ,  Kyoung Pyo Ha ,  Back Sik Kim

IPC: F02D13/02 ,  F01L13/00 ,  F01L1/047 ,  F01L1/053 ,  F01L1/356 ,  F02D41/00

CPC classification number: F02D13/0207 ,  F01L1/047 ,  F01L1/053 ,  F01L1/356 ,  F01L13/0015 ,  F01L13/0026 ,  F01L13/0036 ,  F01L2001/0473 ,  F01L2001/0475 ,  F01L2001/0476 ,  F01L2001/0537 ,  F01L2013/103 ,  F01L2740/00 ,  F02D2041/001 ,  Y02T10/18

Abstract: A continuous variable valve duration apparatus may include: a camshaft; first and second cam portions on which a cam is formed respectively, to which the camshaft is inserted and of which relative phase angles with respect to the camshaft are variable; first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively; a slider housing unit in which the first and second inner brackets are rotatably inserted and of which a relative positions with respect to the camshaft is variable; a control shaft parallel to the camshaft; a control rod eccentrically formed on the control shaft; a lifter on which a lifter hole and a rotation hole are formed; and a control portion selectively rotating the control shaft so as to controlling a position of the slider housing unit.