公开(公告)号：US20180179921A1

公开(公告)日：2018-06-28

申请号：US15823765

申请日：2017-11-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiyuki YANO ,  Yu YOKOYAMA ,  Yuta NISHIMURA ,  Atsuhisa TAMANO ,  Soichiro SUGA

IPC: F01L13/00 ,  F01L1/08 ,  F01L1/053

CPC classification number: F01L13/0036 ,  F01L1/053 ,  F01L1/08 ,  F01L1/185 ,  F01L1/2405 ,  F01L2001/0537 ,  F01L2001/34496 ,  F01L2013/0052 ,  F01L2013/0078 ,  F01L2013/101 ,  F01L2105/00 ,  F01L2810/00

Abstract: For example, two intake valves for each cylinder each are driven by a selected one of cams via a corresponding rocker arm. Each rocker arm includes a support portion and a pressing portion (distal end portion). The support portion is rockably supported by a cylinder head. The pressing portion is configured to press a stem of the corresponding intake valve. The support portion of one of the rocker arms deviates to one side in an axis X direction (cam axial direction) with respect to the distal end portion. The support portion of the other one of the rocker arms deviates to the other side in the axis X direction with respect to the distal end portion.

公开(公告)号：US09970338B2

公开(公告)日：2018-05-15

申请号：US15240565

申请日：2016-08-18

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Matthew G. Foster ,  Keith A. Confer ,  Wayne R. Moore

IPC: F01L13/00 ,  F01L1/08 ,  F02D13/06

CPC classification number: F01L13/0005 ,  F01L1/053 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/462 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2013/001 ,  F01L2105/00 ,  F01L2800/00 ,  F02D13/06 ,  F02D41/0087 ,  F02D2041/0012

Abstract: A cylinder deactivation system includes an intake cam follower assembly, an exhaust cam follower assembly, an exhaust cam, and a controller. The intake cam follower assembly is used to open an intake engine valve and is switchable to operate in one of an active state and a deactive state. The exhaust cam follower assembly is used to open an exhaust engine valve and is switchable to operate in one of a primary lift state and a secondary lift state. The exhaust cam includes a primary lift cam lobe and a secondary lift cam lobe and is used to actuate the exhaust cam follower assembly in the primary lift state and in the secondary lift state. The controller is used to open the exhaust engine valve during the deactive combustion cycle in advance of the opening of the intake engine valve that occurs during the subsequent active combustion cycle.

公开(公告)号：US09909467B2

公开(公告)日：2018-03-06

申请号：US14940482

申请日：2015-11-13

Applicant: Hyundai Motor Company

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

IPC: F01L1/34 ,  F01L1/352 ,  F01L1/08 ,  F01L1/047

CPC classification number: F01L1/352 ,  F01L1/047 ,  F01L1/0532 ,  F01L1/08 ,  F01L13/0015 ,  F01L2001/0473 ,  F01L2013/103

Abstract: A continuously variable valve timing apparatus may include a camshaft, a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively, a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable, a plurality of inner brackets connected with the each wheel key and the each cam key, a plurality of a slider housings of which the each inner bracket is rotatably inserted thereto respectively, and rotatably configured around a hinge hole formed an upper side of a cam cap and a control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets.

公开(公告)号：US09869253B2

公开(公告)日：2018-01-16

申请号：US15157257

申请日：2016-05-17

Applicant: Hyundai Motor Company

Inventor： Byong Young Choi ,  Seung Kook Han ,  Soo Hyung Woo ,  Wootae Kim

IPC: F01L1/04 ,  F02D13/02 ,  F01L1/053 ,  F01L1/047 ,  F01L1/344 ,  F01L13/00 ,  F01L1/08 ,  F01L1/18 ,  F01L1/26

CPC classification number: F02D13/0207 ,  F01L1/053 ,  F01L1/08 ,  F01L1/185 ,  F01L1/267 ,  F01L1/34413 ,  F01L13/0005 ,  F01L13/0036 ,  F01L13/0042 ,  F01L2001/0473 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2105/00 ,  Y02T10/18

Abstract: A multiple variable valve lift apparatus may include a first moving cam provided to rotate together with a camshaft and move in an axial direction of the camshaft, and configured to form a first cam guide protrusion and a plurality of cams realizing different valve lifts from each other, a second moving cam provided to rotate together with a second camshaft and move in an axial direction of the second camshaft, and configured to form a second cam guide protrusion and a plurality of cams realizing different valve lifts from each other, a first operating device operated to move the first moving cam in a first direction, a second operating device operated to move the second moving cam in a second direction, a controller configured to control operations of the first operating device and the second operating device, and a valve opening/closing device.

公开(公告)号：US09840943B2

公开(公告)日：2017-12-12

申请号：US15232678

申请日：2016-08-09

Applicant: Ford Global Technologies, LLC

Inventor： John Eric Rollinger ,  Paul A. Pietrzyk ,  Ed Badillo ,  Jamie Charles Hanshaw

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/08 ,  F01L1/053

CPC classification number: F01L1/34409 ,  F01L1/08 ,  F01L1/344 ,  F01L1/3442 ,  F01L2001/0535 ,  F01L2001/3443 ,  F01L2001/34433 ,  F01L2001/34453 ,  F01L2250/02 ,  F01L2250/04 ,  F01L2250/06 ,  F01L2800/00

Abstract: Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust.

公开(公告)号：US20170284314A1

公开(公告)日：2017-10-05

申请号：US15366101

申请日：2016-12-01

Applicant: Hyundai Motor Company

Inventor： You Sang SON ,  Woong Kim ,  Kyoung Pyo Ha ,  Back Sik Kim ,  Dongheon Park

IPC: F02D13/02 ,  F01L1/08 ,  F01M9/10 ,  F01M11/02 ,  F01L1/053 ,  F01L1/344

CPC classification number: F02D13/0219 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/12 ,  F01L1/34413 ,  F01L13/0015 ,  F01L2001/0537 ,  F01M9/10 ,  F01M9/102 ,  F01M9/109 ,  F01M11/02 ,  F01M2011/026 ,  Y02T10/18

Abstract: A continuous variable valve timing apparatus may include a camshaft, a cam device on which a cam is formed respectively and of which the camshaft is inserted thereto, wherein a relative phase angle with respect to the camshaft is variable, an inside bracket configured to transmit rotation of the camshaft to the cam device, a lifter in which the inside bracket is rotatably inserted therein and on which a cylinder opening and a shaft opening are formed thereon, a control shaft parallel to the camshaft and to which a control rod, inserted into the shaft opening, is eccentrically formed, a control cylinder on which a control rod opening where the control rod is inserted therein is formed and inserted into the cylinder opening, a guide portion guiding movement of the lifter and a controller selectively rotating the control shaft, wherein the lifter may move.

公开(公告)号：US20170284234A1

公开(公告)日：2017-10-05

申请号：US15084550

申请日：2016-03-30

Applicant: Steve James Duel

Inventor： Steve James Duel

IPC: F01L1/18 ,  F01L1/053 ,  F01L1/24 ,  F01L1/08

CPC classification number: F01L1/047 ,  F01L1/12 ,  F01L1/18 ,  F01L1/30

Abstract: A valve train system that eliminates the inefficiencies of current spring biased systems. The system uses teeter beams that are manipulated by cams that are driven by cam shafts to control and operate the valve system more efficiently and dependably.

公开(公告)号：US09745875B2

公开(公告)日：2017-08-29

申请号：US14422501

申请日：2012-08-22

Applicant: Toshiyuki Yano ,  Yoshiaki Miyazato ,  Motohiro Yuge

Inventor： Toshiyuki Yano ,  Yoshiaki Miyazato ,  Motohiro Yuge

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/08 ,  F01L1/26 ,  F01L1/18 ,  F01L1/24 ,  F01L1/047

CPC classification number: F01L13/0057 ,  F01L1/08 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/267 ,  F01L13/0005 ,  F01L2001/0473 ,  F01L2820/035

Abstract: A variable valve gear for an internal combustion engine includes: a cam base portion integrally or separately provided in a camshaft, and immovably fixed to the camshaft; a cam lobe portion connected to the cam base portion so as to swing and shift between a first state where the cam lobe portion is positioned to project from an outer circumference of the base portion and a second state where the cam lobe portion is positioned to be lower than the cam base portion in the first state; a lock mechanism locking the cam lobe portion in the first and second state; and a biasing member biasing the cam lobe portion to be shifted to the first state, to such an extent that the cam lobe portion is shifted to the second state by reaction force from a cam follower when the locking mechanism is unlocked.

公开(公告)号：US09574465B2

公开(公告)日：2017-02-21

申请号：US14460290

申请日：2014-08-14

Applicant: MAZDA MOTOR CORPORATION

Inventor： Akitomo Takagi ,  Toshimasa Kotani ,  Shunsuke Habara ,  Takashi Kashiwabara

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/08 ,  F01L13/00

CPC classification number: F01L1/344 ,  F01L1/08 ,  F01L13/0036 ,  F01L2013/0052 ,  F01L2820/031

Abstract: A cam element portions is configured such that respective maximum lift portions (lift ending points) of both-side end-face cams thereof are provided at respective phases which are different from each other in a rotational direction and that a maximum value of a length, in an axial direction, between respective cam faces of the both-side end-face cams which are provided at the same phase is set to be a distance, in the axial direction, between a first operational member and a second operational member or smaller. Accordingly, in a valve gear of an engine in which cams operative to control opening/closing of a valve are switchable, it can be properly prevented that a camshaft locks and stop rotating because of an operational malfunction of an operational member or the like.

Abstract translation: 凸轮元件部分被构造成使得其两侧端面凸轮的相应的最大提升部分（提升终点）设置在沿旋转方向彼此不同的各个相位处，并且长度的最大值， 在轴向方向上，设置在相同相位的两侧端面凸轮的相应凸轮面之间在轴向方向上设置在第一操作构件和第二操作构件之间的距离以下。 因此，在可操作地控制阀的打开/关闭的凸轮的发动机的阀齿轮是可切换的情况下，可以适当地防止由于操作构件等的操作故障而使凸轮轴锁定并停止转动。

公开(公告)号：US20160319705A1

公开(公告)日：2016-11-03

申请号：US15030417

申请日：2015-01-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiyuki YANO ,  Yoshiaki MIYAZATO ,  Hidetoshi HIROSE ,  Yoshikazu HARA

IPC: F01L1/08 ,  F01L1/26 ,  F01L13/00 ,  F01L1/04

CPC classification number: F01L1/08 ,  F01L1/04 ,  F01L1/267 ,  F01L13/0036 ,  F01L2001/0473

Abstract: An adjustable valve device includes: a first cam portion penetrated by a camshaft, rotating with the camshaft, and including an elongated hole formed therein; a U or L shaped second cam portion supported by the first cam portion so as to swing to move between a first state and a second state; a stopper pin fixed to the second cam portion and penetrating through the elongated hole; a biasing member biasing the stopper pin so that the second cam portion becomes in the first state; a lock mechanism locking the second cam portion only when the second cam portion is in the first state; and a cam follower exerting a reactive force so that the second cam portion becomes in the second state in a state where a lock of the second cam portion is released, wherein the reactive force is greater than a biasing force of the biasing member.

Abstract translation: 一种可调节阀装置，包括：由凸轮轴穿过的凸轮轴，与凸轮轴一起旋转并包括形成在其中的细长孔; U形或L形的第二凸轮部分，其被第一凸轮部分支撑以摆动以在第一状态和第二状态之间移动; 固定到第二凸轮部分并穿过细长孔的止动销; 偏置构件偏压止动销，使得第二凸轮部分变为第一状态; 仅当第二凸轮部处于第一状态时锁定第二凸轮部的锁定机构; 以及具有反作用力的凸轮从动件，使得第二凸轮部分在第二凸轮部分的锁定被解除的状态下变为第二状态，其中反作用力大于偏置构件的偏置力。