公开(公告)号：US10914203B2

公开(公告)日：2021-02-09

申请号：US16741793

申请日：2020-01-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takanobu Arai

IPC: F01L1/053 ,  F01L1/02 ,  F01L1/348 ,  F02F1/24 ,  F16J15/06

Abstract: An internal combustion engine includes a cylinder head, a support structure, a cam pulley, and a seal member. The support structure is provided above the cylinder head and supports the camshaft. The cam pulley is provided at an end of the camshaft. A timing belt is wound around the cam pulley. A seal member is provided to cover a gap provided between the cylinder head and the support structure at a facing surface facing the cam pulley. The seal member provides sealing between the cylinder head and the support structure in an axial direction of the camshaft.

公开(公告)号：US10895176B2

公开(公告)日：2021-01-19

申请号：US16530067

申请日：2019-08-02

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Alexandre Camilo ,  Renato de Oliveira Ghiraldi

IPC: F01L1/344 ,  F01L1/348 ,  F16H53/04 ,  F16H7/12 ,  F02B67/06 ,  F01L1/02 ,  F02D41/00

Abstract: This disclosure relates to a trigger wheel for a camshaft adjuster, having a side wall extending along a central longitudinal axis, wherein a formed feature made to project in a radial direction of the longitudinal axis is formed in a circumferential region of the side wall. The formed feature is provided at least in part with a wave profile. Moreover, the disclosure relates to a camshaft adjuster having this trigger wheel.

公开(公告)号：US10662829B2

公开(公告)日：2020-05-26

申请号：US16173124

申请日：2018-10-29

Applicant: DENSO CORPORATION

Inventor： Akira Iwasaki ,  Genki Suzuki

IPC: F01L1/34 ,  F01L1/352 ,  F01L1/348 ,  F01L1/053 ,  F01L1/02

Abstract: A housing is rotatable synchronously with a crankshaft of an engine. A plurality of external teeth arrangements is respectively shaped into a ring form and is formed integrally with the housing in one piece and is configured to mesh with a plurality of chains, respectively, each of which is wound around the crankshaft or a sprocket that is rotatable. A cam plate is connected to a camshaft of the engine and is rotatable relative to the housing. A plurality of stoppers is formed integrally with the housing in one piece while the stoppers are configured to limit relative rotation between the housing and the cam plate within a predetermined range when the stoppers contact the cam plate. Each stopper is placed at a position, at which the stopper does not overlap with any of the external teeth arrangements in a view taken in an axial direction of the housing.

公开(公告)号：US20190226365A1

公开(公告)日：2019-07-25

申请号：US16255324

申请日：2019-01-23

Applicant: BorgWarner Inc.

Inventor： John R. SMERCZAK

IPC: F01L1/348 ,  F01L1/344

Abstract: A variable camshaft timing system, includes a camshaft phasing mechanism that selectively changes an angular position of an input relative to an output; a first camshaft phaser sprocket, coupled with the input of the camshaft phasing mechanism, configured to engage a first endless loop that communicates rotational force from a crankshaft to the input of the camshaft phasing mechanism; and a second camshaft phaser sprocket, axially spaced from the first camshaft phaser sprocket and coupled with the output of the camshaft phasing mechanism, configured to engage a second endless loop that communicates rotational force from the output of the camshaft phasing mechanism to a camshaft and change the angular position of the camshaft relative to the crankshaft, wherein the camshaft phasing mechanism is mounted about an axis that is different from an axis of camshaft rotation.

公开(公告)号：US20190010837A1

公开(公告)日：2019-01-10

申请号：US15804901

申请日：2017-11-06

Applicant: BorgWarner Inc.

Inventor： Larry A. PRITCHARD ,  Thomas R. BENNER ,  Christopher J. PLUTA

IPC: F01L1/348

CPC classification number: F01L1/348 ,  F01L1/047 ,  F01L1/08 ,  F01L1/34 ,  F01L1/34403 ,  F01L1/34409 ,  F01L1/34413 ,  F01L1/3442 ,  F01L1/352 ,  F01L2001/34453 ,  F01L2001/34459 ,  F01L2013/103 ,  F01L2250/02 ,  F01L2250/04 ,  F01L2820/01 ,  F01L2820/032

Abstract: An engine variable camshaft timing phaser (10) includes a sprocket (12) and a planetary gear assembly (14). The sprocket (12) receives rotational drive input from an engine crankshaft. The planetary gear assembly (14) includes two or more ring gears (26, 28), multiple planet gears (24), a sun gear (22), and a wrap spring (76). One of the ring gears (26, 28) receives rotational drive input from the sprocket (12) and one of the ring gears (26, 28) transmits rotational drive output to an engine camshaft. The sun gear (22) engages with the planet gears (24). The wrap spring (76) experiences expansion and contraction exertions to permit advancing and retarding engine valve opening and closing, and to prevent advancing and retarding engine valve opening and closing.

公开(公告)号：US20160032790A1

公开(公告)日：2016-02-04

申请号：US14813381

申请日：2015-07-30

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： PASCAL DAVID ,  PIERRE KIMUS ,  SEBASTIEN MAFRICA

IPC: F01L1/348 ,  F01L9/04 ,  F02B77/02 ,  F01L1/047

CPC classification number: F01L1/348 ,  F01L1/047 ,  F01L1/344 ,  F01L9/04 ,  F01L2001/3443 ,  F01L2009/043 ,  F01L2009/0463 ,  F01L2013/103 ,  F01L2820/032 ,  F02B77/02 ,  F02F7/0046 ,  F02F7/006 ,  F02F11/002 ,  F02F2007/0078

Abstract: An internal combustion engine includes a crankshaft rotatable about a crankshaft axis; a camshaft rotatable by the crankshaft about a camshaft axis; an engine cover defining an engine cover volume within the internal combustion engine; a drive member disposed within the engine cover volume which transfers rotational motion from the crankshaft to the camshaft; a camshaft phaser disposed within the engine cover volume which controllably varies the phase relationship between the crankshaft and the camshaft; an actuator which operates the camshaft phaser; and an actuator mount within the engine cover volume which mounts the actuator structurally independent of the engine cover, thereby allowing removal of the engine cover independently of the actuator.

Abstract translation: 内燃机包括可围绕曲轴轴线旋转的曲轴; 由所述曲轴围绕凸轮轴轴线旋转的凸轮轴; 发动机盖，其限定所述内燃机内的发动机盖体积; 设置在发动机盖体积内的驱动构件，其将旋转运动从曲轴传递到凸轮轴; 设置在发动机盖体积内的凸轮轴相移器，其可控地改变曲轴和凸轮轴之间的相位关系; 操作凸轮轴相位器的致动器; 以及在发动机盖体积内的致动器安装件，其将结构上独立于发动机盖的执行器安装在致动器上，从而允许独立于致动器的发动机盖的拆卸。

公开(公告)号：US20150354468A1

公开(公告)日：2015-12-10

申请号：US14530183

申请日：2014-10-31

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Hyun Kim

IPC: F02D13/02 ,  F01L1/348 ,  F01L1/344

CPC classification number: F02D13/0203 ,  F01L1/3442 ,  F01L1/348 ,  F01L2001/34463 ,  F02D13/0219 ,  F02D2041/001 ,  F02D2041/2027 ,  Y02T10/18

Abstract: A continuous variable valve timing with an intermediate lock pin and includes a camshaft, with a cam that protrudes from the camshaft, configured to lift a valve. In addition, a variable device is disposed at one side of the camshaft with a retarded angle chamber and an advanced angle chamber disposed therein. An oil control valve is configured to supply the retarded angle chamber or the advanced angle chamber with hydraulic pressure to retard or advance the rotation of the camshaft, respectively. Furthermore, a cam position detector is configured to detect a rotation position of the cam. A controller is configured to detect a signal of the rotation position of the camshaft from the cam position detector and vary a frequency of a PWM duty configured to operate the oil control valve, when a variation characteristic of the signal of the rotation position exceeds a predetermined range.

Abstract translation: 具有中间锁定销的连续可变气门正时，并且包括凸轮轴，凸轮轴具有从凸轮轴突出的凸轮，构造成提升阀。 此外，可变装置设置在凸轮轴的一侧，其中设置有延迟角室和提升角室。 油控制阀被配置为向延迟角室或提前角室提供液压以分别延迟或推进凸轮轴的旋转。 此外，凸轮位置检测器被配置为检测凸轮的旋转位置。 控制器被配置为当旋转位置的信号的变化特性超过预定值时，检测来自凸轮位置检测器的凸轮轴的旋转位置的信号，并且改变构造成操作油控制阀的PWM占空比的频率 范围。

公开(公告)号：US20100218738A1

公开(公告)日：2010-09-02

申请号：US12681449

申请日：2008-10-09

Applicant: Xiaolan Ai ,  Donald Remboski

Inventor： Xiaolan Ai ,  Donald Remboski

IPC: F01L1/348

CPC classification number: F01L1/02 ,  F01L1/024

Abstract: A non-synchronous camshaft phasing device 46 for use with an internal combustion engine E. The internal combustion engine E includes an engine control unit ECU, a camshaft 42 and a crankshaft 12. The non-synchronous phasing device 46 is located between the crankshaft 12 and the camshaft 42 for controlling a phase shift angle between the camshaft 42 and the crankshaft 12. The phasing device 46 comprises an input shaft 36 coupled to the crankshaft 12 via a non-synchronous belt 40. The phasing device 46 also comprises an output shaft 42 coupled to the camshaft 44; a planetary gear train 48 co-axially aligned around and coupled with the input shaft 36 and the output shaft 42; and an motor 50 coupled to the planetary gear train 48 by a carrier 56. A controller operatively connects to the engine control unit ECU, wherein the controller is configured to receive engine operating signals generated by the engine control unit ECU and to receive signals from position sensors 51 coupled to the input shaft 36 and to the output shaft 42. In response to the signals, the controller generates and sends a torque command signal to the motor 50 to command the motor 50 to control the planetary gear train 48 through the carrier 56 to adjust the phase shift angle between the camshaft and the crankshaft 12.

Abstract translation: 一种与内燃机E一起使用的非同步凸轮轴相位装置46.内燃机E包括发动机控制单元ECU，凸轮轴42和曲轴12.非同步定相装置46位于曲轴12 以及用于控制凸轮轴42和曲轴12之间的相移角的凸轮轴42.定相装置46包括通过非同步带40联接到曲轴12的输入轴36。定相装置46还包括输出轴 42连接到凸轮轴44; 行星齿轮系48与输入轴36和输出轴42同轴地对准并联接; 以及通过载体56联接到行星齿轮系48的马达50.控制器可操作地连接到发动机控制单元ECU，其中控制器被配置为接收由发动机控制单元ECU产生的发动机操作信号并从位置接收信号 耦合到输入轴36和输出轴42的传感器51.响应于该信号，控制器产生并向马达50发送扭矩指令信号，以命令马达50通过载体56来控制行星齿轮系48 以调节凸轮轴和曲轴12之间的相移角。

公开(公告)号：US20050014586A1

公开(公告)日：2005-01-20

申请号：US10701189

申请日：2003-11-04

Applicant: Roger Simpson

Inventor： Roger Simpson

IPC: F02B67/06 ,  F01L1/02 ,  F01L1/34 ,  F01L1/348 ,  F01L1/46 ,  F16H7/08

CPC classification number: F01L1/46 ,  F01L1/02 ,  F01L1/022 ,  F01L1/024 ,  F01L1/34 ,  F01L1/348 ,  F01L2820/01 ,  Y10T74/2102

Abstract: A chain drive having a phaser such as a hydraulic vane phaser interposed between a timing chain and a driving or driven shaft is provided. The phaser or the vane are controlled to oscillate more at certain engine speeds to thereby reduce the tensioning force on the chain at the certain engine speeds.

Abstract translation: 提供了具有相位器的链驱动器，例如介于正时链和驱动轴或从动轴之间的液压叶片相位器。 相控器或叶片被控制以在某些发动机转速下更多地振荡，从而在某些发动机转速下降低链条上的张紧力。

公开(公告)号：US6155218A

公开(公告)日：2000-12-05

申请号：US274816

申请日：1999-03-22

Applicant: Richard J. Line

Inventor： Richard J. Line

IPC: F01L1/348 ,  F16H7/08 ,  F01L1/344

CPC classification number: F01L1/348 ,  F16H2007/0874

Abstract: An engine accessory retards or advances one or more cam shafts of an engine relative to the crankshaft during engine operation. The accessory acts n the timing chain that engages wheels on cam shafts and crankshaft. The accessory includes a rod translatably mounted to the engine, wherein a hydraulic cylinder or an electric motor translates the rod in accordance with signals from an electronic controller. The signals from the controller are in response to values of selected variables related to engine condition or are in response to manual input. Chain engagement wheels are journalled on either end of the rod. One chain engagement wheel mates with the part of the timing chain approaching the crankshaft wheel. The other chain engagement wheel mates with the part the chain travelling away from the crankshaft wheel. Translation of the rod affects the chain length between the crankshaft wheel and the camshaft wheels which are driven by the crankshaft wheel, whereby the rod's translation retards or advances the cam shafts relative to the crankshaft.

Abstract translation: 在发动机运行期间，发动机附件在发动机相对于曲轴延伸或推进一个或多个凸轮轴。 附件作用于在凸轮轴和曲轴上接合轮子的正时链条。 附件包括可平移地安装到发动机的杆，其中液压缸或电动马达根据来自电子控制器的信号来转动杆。 来自控制器的信号响应于与发动机状态相关的选定变量的值或响应于手动输入。 链条接合轮在杆的任一端轴颈。 一个链接轮与配合曲轴轮的正时链的一部分配合。 另一个链轮啮合轮与链条部分的曲轴轮配合。 杆的翻转影响由曲轴轮驱动的曲轴轮和凸轮轴轮之间的链条长度，从而杆的平移相对于曲轴延伸或前进。