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公开(公告)号：US11352918B1
公开(公告)日：2022-06-07
申请号：US17180722
申请日：2021-02-20
Applicant: Anthony John Peila
Inventor： Anthony John Peila
Abstract: This invention describes a variable valve timing mechanism which may be fitted to an internal combustion engine to provide precise control over timing of the valve opening and closing events of the camshaft relative to the crankshaft. Various methods for its application are described to provide settable valve timing at either predetermined angle selected by the operator, or automatic variable valve timing as governed by parameters of the operating engine. Said mechanism comprised of oppositely located idler rollers, whereas not bound to a single yoke or carrier, are driven by a cam to achieve independent movement of the rollers, which bear against both tension and slack sides of the belt between the crankshaft and camshaft pulleys causing predictable and repeatable variation in valve timing. Thus, this invention, whereby coordinated but non-uniform movements of the idler rollers is achieved by the mechanical appurtenances described herein, including a specially developed cardioid cam to actuate said idler rollers, produces precise changes in camshaft phase angle.
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公开(公告)号：US20210087952A1
公开(公告)日：2021-03-25
申请号：US17113529
申请日：2020-12-07
Applicant: BorgWarner Inc.
Inventor： Young Taek Sun
Abstract: An engine system includes a first camshaft, a second camshaft, a first camshaft phaser, and a second camshaft phaser. The first camshaft phaser has a first camshaft sprocket, and the second camshaft phaser has a second camshaft sprocket. The engine system also includes a crankshaft spaced from the first and second camshafts, and a crankshaft sprocket coupled to the crankshaft. The engine system further includes a timing chain coupled to the first and second camshaft sprockets, and the crankshaft sprocket. The timing chain is configured to transmit torque from the crankshaft sprocket to the first and second camshaft sprockets upon rotation of the crankshaft. The engine system further includes a biasing member extending from a first end portion coupled to the first camshaft phaser to a second end portion coupled to the second camshaft phaser to maintain tension on the timing chain between the first and second camshaft phasers.
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公开(公告)号：US20190048764A1
公开(公告)日：2019-02-14
申请号：US15673731
申请日：2017-08-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Robert Gallon , David E. Mann , Charles L. Nicholson
Abstract: A tensioner assembly for an engine timing drive includes a tensioner with a tensioner body having a fastener opening and defining a cavity with a plunger opening. A plunger is disposed in the cavity and a removable pin restrains the plunger in the cavity. The plunger is configured to be biased out of the plunger opening when the pin is removed. A protuberance extends outward from the tensioner body and is adapted to receive an applied torque. The tensioner body is configured to pivot about a center axis of the fastener opening in response to a predetermined torque applied to the protuberance. A method of assembling an engine timing drive includes applying a predetermined torque to a protuberance of a tensioner that is pivotably mounted to a cylinder block to rotate the tensioner toward a rotatable device such that the tensioner applies a predetermined load to the rotatable device.
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公开(公告)号：US10107155B2
公开(公告)日：2018-10-23
申请号：US15358071
申请日：2016-11-21
Applicant: Hyundai Motor Company , Hitachi Automotive Systems, Ltd.
Inventor： Hong Wook Lee , Bonghoon Han , Jaechun Kim , Hyung Ick Kim , Yoshihiko Yamada , Manabu Katayama , Seiji Tsuruta
Abstract: A valve timing control apparatus of an internal combustion engine may include a driving rotational body to which torque is transmitted from a crankshaft, a driven rotational body fixed to a camshaft to which torque is transmitted from the driving rotational body, an electric motor disposed between the driving rotational body and the driven rotational body and relatively rotating the driving rotational body and the driven rotational body when electric power is applied thereto, and a deceleration mechanism that decelerates a rotational speed of the electric motor and transmits the decelerated rotational speed to the driven rotational body.
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公开(公告)号：US09926817B2
公开(公告)日：2018-03-27
申请号：US15034466
申请日：2014-11-18
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Kenji Ikeda , Yuji Noguchi , Takeo Asahi , Hiroyuki Hamasaki , Yoshiaki Iguchi , Tomohiro Kajita
CPC classification number: F01L1/3442 , F01L1/348 , F01L2001/34423 , F01L2001/34426 , F01L2001/34453 , F01L2001/34483 , F01L2103/00
Abstract: The valve opening/closing timing control device includes: a driving rotating body; a driven rotating body; a fixed shaft portion; a fluid pressure chamber; a partitioning portion; and a phase control unit for controlling a rotation phase by supplying/discharging pressurized fluid to/from an advancing chamber or a retarding chamber via an inside of the fixed shaft portion. The driven rotating body has: an inner circumferential member with a cylindrical portion, and a coupling plate portion of the camshaft, the cylindrical portion and the coupling plate portion being integrated with each other; and an outer circumferential member provided with the partitioning portion. The outer circumferential member includes the inner circumferential member in a unified manner so as to have the same rotational axis. The inner circumferential member is formed with an iron-based material. The outer circumferential member is formed with a material that is lighter in weight than the iron-based material.
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Patent Agency Ranking
公开(公告)号：US09708940B2
公开(公告)日：2017-07-18
申请号：US14813381
申请日：2015-07-30
Applicant: DELPHI TECHNOLOGIES, INC.
Inventor： Pascal David , Pierre Kimus , Sebastien Mafrica
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.
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公开(公告)号：US20170167317A1
公开(公告)日：2017-06-15
申请号：US15358071
申请日：2016-11-21
Applicant: Hyundai Motor Company , Hitachi Automotive Systems, Ltd.
Inventor： Hong Wook Lee , Bonghoon Han , Jaechun Kim , Hyung Ick Kim , Yoshihiko Yamada , Manabu Katayama , Seiji Tsuruta
CPC classification number: F01L9/04 , F01L1/047 , F01L1/10 , F01L1/344 , F01L1/348 , F01L1/352 , F01L1/46 , F01L13/06 , F01L2001/0476 , F01L2013/103 , F01L2820/032
Abstract: A valve timing control apparatus of an internal combustion engine may include a driving rotational body to which torque is transmitted from a crankshaft, a driven rotational body fixed to a camshaft to which torque is transmitted from the driving rotational body, an electric motor disposed between the driving rotational body and the driven rotational body and relatively rotating the driving rotational body and the driven rotational body when electric power is applied thereto, and a deceleration mechanism that decelerates a rotational speed of the electrical motor and transmit the decelerated rotational speed to the driven rotational body.
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公开(公告)号：US6158465A
公开(公告)日：2000-12-12
申请号：US274989
申请日：1999-03-23
Applicant: Steven Lambert , Michael Lambert
Inventor： Steven Lambert , Michael Lambert
Abstract: A rotary valve assembly includes a housing for positioning on an engine of the piston and cylinder type. The housing includes an intake passage for conducting a working fluid to the cylinder and an exhaust passage for conducting the working fluid from the cylinder. The housing has an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window. The window is so positioned that when the member is rotated, it opens and closes the intake and exhaust passages in a periodic manner. The valve assembly may also include a throttle member mounted in the housing parallel to the rotary valve member. The throttle member has a hole which may be positioned opposite the intake passage. The throttle member is movable relative to the axis of the rotary valve member between a first position which places the hole in the throttle means opposite a first portion of the valve member and a second position which places that hole opposite a second portion of the valve member so that when the valve member is rotated, the open time of the intake passage can be controlled by the position of the throttle member. In some applications, the rotary valve member itself can function as the throttle member. A plurality of similar valve assemblies can be positioned adjacent to one another and concatenated so that they all operate in unison to control the working fluid flow to and from all the cylinders of a multi-cylinder engine. The assembly is particularly suitable for converting an internal combustion engine so that it operates under steam power. Other applications for the assembly are also disclosed.
Abstract translation: 旋转阀组件包括用于定位在活塞和气缸类型的发动机上的壳体。 壳体包括用于将工作流体引导到气缸的进气通道和用于从气缸传导工作流体的排气通道。 壳体具有内部空腔，其拦截进入和排出通道，该空腔包含具有窗口的旋转阀构件。 窗口是如此定位，使得当构件旋转时，它以周期性的方式打开和关闭进气和排气通道。 阀组件还可以包括平行于旋转阀构件安装在壳体中的节流构件。 节流构件具有可以与进气通道相对定位的孔。 节流构件可相对于旋转阀构件的轴线在第一位置和第二位置之间移动，该第一位置将节流装置中的孔设置在与阀构件的第一部分相对的第二位置和将该孔与阀构件的第二部分相对的第二位置 使得当阀构件旋转时，可以通过节流构件的位置来控制进气通道的打开时间。 在一些应用中，旋转阀构件本身可以用作节流构件。 多个类似的阀组件可以彼此相邻地定位并连接，使得它们都一致地操作以控制流入和流出多缸发动机的所有气缸的工作流体流。 该组件特别适用于转换内燃机以使其在蒸汽动力下运行。 还公开了组装的其它应用。
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公开(公告)号：US4872426A
公开(公告)日：1989-10-10
申请号：US181867
申请日：1988-04-15
Applicant: Samuel J. Sapienza, IV
Inventor： Samuel J. Sapienza, IV
CPC classification number: F02B75/22 , F01L1/348 , Y10S474/90
Abstract: A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt. First and second idler arms, each having an idler wheel connected thereto, are independently pivoted around a common pivot point by means of a pair of positioning cams operatively connected to an electric stepping motor. The motor is controlled from an electronic control unit which receives signals indicating the engine operating characteristics and through a look-up table steps the positioning cams which in turn pivots the idler arms to rotate the intake camshaft relative to the exhaust camshaft thereby changing the intake valve timing.
Abstract translation: 用于内燃机的可变凸轮轴定时系统通过控制同步带的路径来改变进气凸轮轴和排气凸轮轴之间的相对角位置。 第一和第二空转臂各自具有连接到其上的惰轮，通过可操作地连接到电动步进电机的一对定位凸轮独立地围绕公共枢转点枢转。 电动机由电子控制单元控制，该电子控制单元接收指示发动机操作特性的信号，并且通过查找表对定位凸轮进行步进，定位凸轮又使惰轮枢转，以使进气凸轮轴相对于排气凸轮轴旋转，从而改变进气门 定时。
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公开(公告)号：US4715333A
公开(公告)日：1987-12-29
申请号：US54236
申请日：1987-05-26
Applicant: Takeshi Oyaizu
Inventor： Takeshi Oyaizu
CPC classification number: F02B75/22 , F01L1/02 , F01L1/022 , F01L1/024 , F01L1/348 , F01L2001/0537 , F02B2275/18 , F16H2007/0874
Abstract: A camshaft drive arrangement for an internal combustion engine including an improved arrangement for adjusting the valve timing during running of the engine. The timing is adjusted by means of a pair of pulleys that are engaged with opposite flights of a timing belt or chain and which are carried by a pivotally supported adjusting lever. The pivotal position of the lever and, according, the valve timing is altered in response to sensed engine conditions.
Abstract translation: 一种用于内燃机的凸轮轴驱动装置，包括用于在发动机运行期间调节气门正时的改进装置。 通过与正时皮带或链条的相对的翼片啮合并由枢轴支撑的调节杆承载的一对滑轮来调节时机。 根据感测到的发动机条件，杠杆的枢转位置和根据气门正时的改变被改变。
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