公开(公告)号：US20010020456A1

公开(公告)日：2001-09-13

申请号：US09751304

申请日：2000-12-29

Inventor： Dal-Heun Shin

IPC: F01L001/34

CPC classification number: F01L1/022 ,  F01L1/02 ,  F01L1/348

Abstract: A variable valve timing system for a vehicle includes an intake camshaft for operating an intake valve, an exhaust camshaft for operating an exhaust valve, an intake cam sprocket mounted on the intake camshaft, an exhaust cam sprocket mounted on the exhaust camshaft, a chain interconnecting the intake cam sprocket and the exhaust cam sprocket, and a device for varying phases of the intake and exhaust camshafts by, according to an engine rpm, pushing and pulling the chain to forcedly rotate the intake and exhaust cam sprockets at a predetermined angle while moving in a perpendicular direction with respect to a longitudinal direction of a power transmission member.

Abstract translation: 用于车辆的可变气门正时系统包括用于操作进气门的进气凸轮轴，用于操作排气门的排气凸轮轴，安装在进气凸轮轴上的进气凸轮链轮，安装在排气凸轮轴上的排气凸轮链轮， 进气凸轮链轮和排气凸轮链轮，以及用于根据发动机转速来改变进气和排气凸轮轴的相位的装置，推动和拉动链条，以在移动时以预定角度强制地转动进气和排气凸轮链轮 在相对于动力传递构件的纵向方向的垂直方向上。

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

IPC: F01L1/34 ,  F01L1/348 ,  F01L7/02 ,  F01L7/06 ,  F01L7/16 ,  F16K5/10 ,  F16K11/078

CPC classification number: F01L1/34 ,  F01L1/348 ,  F01L7/02 ,  F01L7/023 ,  F01L7/06 ,  F01L7/16

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。

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

IPC: F01L1/348 ,  F02B75/22

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。

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

IPC: F01L1/02 ,  F01L1/34 ,  F01L1/348 ,  F02B75/22 ,  F16H7/08 ,  F01L1/26

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。

公开(公告)号：US4576127A

公开(公告)日：1986-03-18

申请号：US732716

申请日：1985-05-10

Applicant: Isao Doi ,  Takashi Mihashi ,  Shoichiro Yokota

Inventor： Isao Doi ,  Takashi Mihashi ,  Shoichiro Yokota

IPC: F01L1/02 ,  F01L1/34 ,  F01L1/348 ,  F02B29/08 ,  F02B67/06 ,  F01L1/12

CPC classification number: F01L1/024 ,  F01L1/348 ,  F02B67/06 ,  F02B2275/18

Abstract: A first timing belt transmits rotation of a crankshaft to an exhaust valve operating camshaft whose rotation is in turn transmitted through a second timing belt to an intake valve operating camshaft. A pair of adjusting pulleys are provided which is brought into contact with a tension side section and a slack side section of the second timing belt and movable in unison with each other toward and away from the timing belt sections to vary the lengths of same and thereby vary the phase of the intake valve operating camshaft relative to the exhaust valve operating camshaft in accordance with operating conditions of the engine.

Abstract translation: 第一同步带将曲轴的旋转传递到排气门操作凸轮轴，其旋转又通过第二同步带传递到进气门操作凸轮轴。 提供一对调节带轮，其与第二同步带的张力侧部分和松弛侧部分接触并且可以彼此一致地朝向和远离同步带部分移动，以改变其长度，从而 根据发动机的运行条件改变进气门操作凸轮轴相对于排气门操作凸轮轴的相位。

公开(公告)号：US4484543A

公开(公告)日：1984-11-27

申请号：US499344

申请日：1983-05-31

Applicant: Joel W. Maxey

Inventor： Joel W. Maxey

IPC: F01L1/348 ,  F01L7/00 ,  F02B1/04 ,  F02B29/00 ,  F02B29/08 ,  F02B75/02 ,  F02B75/16 ,  F02D13/02 ,  F02D15/02

CPC classification number: F02D13/0223 ,  F01L1/348 ,  F01L7/00 ,  F02B29/00 ,  F02B29/083 ,  F02B75/16 ,  F02D13/028 ,  F02D15/02 ,  F02B1/04 ,  F02B2075/025 ,  F02B2075/027 ,  Y02T10/146 ,  Y02T10/18

Abstract: A valve assembly for use in internal combustion engine applications, of the type designed to regulate air-fuel mixture from a carburetor or other fuel injection means entering the cylinders of either two stroke cycle or four stroke cycle spark ignition engines to improve the part-load and full-load fuel efficiency of such engines by minimizing the pumping losses. This increase in efficiency is accomplished by regulating engine power output by employing time-duration-modulation control instead of the throttled or resistive intake control which is empolyed in the engines of the prior art. A rotary valve structure employs a tubular multi-port member comprising a rotary valve, with an outlet for each cylinder, operating at 15 p.s.i. maximum differential pressure and relatively low temperatures, connected in series with presently used poppet or reed or port type intake valves. Rotary valve timing or phase control is accomplished with a multi-pulley belt drive system.The time-duration-control limits engine output by matching the effective compression ratio to that ratio required to meet the demand placed on the engine in less than full load conditions. An adjustable full load stop prevents the engine from reaching its full load output, thereby allowing the effective compression ratio to be affected by the inventive valve structure throughout the entire range of engine opertion. Since the novel valve assembly allows unlimited reduction of the effective compression ratio, the engine manufacturer may reduce clearance volumes and hence increase the engine expansion ratio independently of any effect on the effective compression ratio of the engine.

Abstract translation: 用于内燃机应用的阀组件，其设计用于调节来自化油器或其他燃料喷射装置的空气 - 燃料混合物的类型，其进入两冲程循环或四冲程循环火花点火发动机的气缸以改善部分负载 并通过最小化泵送损失来满足这种发动机的燃油效率。 这种效率的提高是通过采用持续时间调制控制来调节发动机功率输出来实现的，而不是在现有技术的发动机中被赋予的节流或电阻进气控制。 旋转阀结构采用包括旋转阀的管状多端口构件，每个气缸的出口以15p.s.i运行。 最大压差和相对较低的温度，与当前使用的提升阀或簧片或端口型进气阀串联连接。 旋转阀正时或相位控制由多皮带传动系统完成。 时间段控制通过将有效压缩比与满足在小于满载条件下的发动机需求所需的比例来限制发动机输出。 可调整的全负载停止可防止发动机达到其全负载输出，从而在整个发动机运转范围内允许有效的压缩比受本发明的阀结构的影响。 由于新型阀组件允许有效压缩比的无限降低，所以发动机制造商可以减小间隙体积，并因此增加发动机膨胀比，而不受对发动机的有效压缩比的任何影响。

公开(公告)号：US3986351A

公开(公告)日：1976-10-19

申请号：US547069

申请日：1975-02-04

Applicant: Robert L. Woods ,  Silas Katz

Inventor： Robert L. Woods ,  Silas Katz

IPC: F01L1/348 ,  F02B75/02 ,  F02D13/02 ,  F01L1/34 ,  F01N1/14

CPC classification number: F02D13/0276 ,  F01L1/348 ,  F02B2075/027 ,  Y02T10/18

Abstract: A method and apparatus for controlling the air flow in an internal-combustion engine that comprises an unthrottled variable-timing third valve engine modification. An unthrottled full charge of air is drawn into the cylinders during the standard intake stroke of a four-stroke internal-combustion engine. During the initial portion of the succeeding compression stroke, a portion of that full charge is discharged through a third valve. Thus, the same mass of air that would result from throttled engine remains in the cylinders to be compressed. This air quantity is adjusted by means of adjusting the timing of the opening and closing of the third valve in accordance with the power requirements of the engine. A full charge of air is utilized for a full load, while a lesser charge is utilized for a partial load. Power losses which result from conventional intake air throttling are thereby eliminated.

Abstract translation: 一种用于控制内燃机中的空气流动的方法和装置，其包括无节流可变定时第三阀引擎修改。 在四冲程内燃机的标准进气冲程期间，未充气的空气被吸入气缸。 在随后的压缩行程的初始部分期间，通过第三阀排出一部分完全充气。 因此，由节流发动机产生的相同质量的空气将保留在气缸中以被压缩。 通过根据发动机的功率要求调节第三阀的打开和关闭的时间来调节该空气量。 充分利用空气充满电，而部分负荷则采用较少的电量。 因此消除了由常规进气节流引起的功率损失。

公开(公告)号：US20180216503A1

公开(公告)日：2018-08-02

申请号：US15748662

申请日：2016-07-25

Applicant: BorgWarner Inc.

Inventor： Mark M. WIGSTEN ,  Daniel BROWN

IPC: F01L1/352 ,  F16H1/28 ,  F01L1/348

CPC classification number: F01L1/352 ,  F01L1/348 ,  F01L2250/02 ,  F01L2820/032 ,  F16H1/28

Abstract: An electric phaser for dynamically adjusting the phase of a camshaft relative to a crankshaft with a split ring planetary drive. The split ring planetary drive including: a sun gear driven by a motor, a plurality of planetary gears with stop teeth, a first ring gear driven by the crankshaft, and a second ring gear rotatable with the camshaft. Either the first or second ring gears each include a first and a second stop. When the stop teeth of the planetary gears interacts with the first stop or the second stop on either the first or second ring gears, rotation of the phaser further in the first direction or the second direction towards the first or second stops is halted.

公开(公告)号：US09810108B2

公开(公告)日：2017-11-07

申请号：US15507526

申请日：2015-08-24

Applicant: BorgWarner Inc.

Inventor： Larry A. Pritchard ,  Thomas R. Benner ,  Christopher J. Pluta

IPC: F01L1/344 ,  F01L1/348 ,  F01L1/047 ,  F01L1/34 ,  F01L1/08 ,  F01L1/352

CPC classification number: F01L1/348 ,  F01L1/047 ,  F01L1/08 ,  F01L1/34 ,  F01L1/34403 ,  F01L1/34409 ,  F01L1/34413 ,  F01L1/3442 ,  F01L1/352 ,  F01L2001/34459 ,  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：US20170254233A1

公开(公告)日：2017-09-07

申请号：US15510496

申请日：2015-06-18

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Ali Bayrakdar

IPC: F01L1/344 ,  F01L1/348

CPC classification number: F01L1/3442 ,  F01L1/047 ,  F01L1/344 ,  F01L1/34409 ,  F01L1/348 ,  F01L2001/34433

Abstract: A camshaft adjuster (1) for driving and/or adjusting a camshaft (2) of an internal combustion engine, including a stator (3) and a concentric rotor (6) which is arranged within the stator in a rotatable manner. At least the stator (3) has a central receiving area (31) for receiving the camshaft (2), and at least one projection (13) which protrudes radially inwards is provided on a radial inner edge (12) of the central receiving area (31) in order to engage behind a camshaft (2) connecting piece (20) which protrudes radially outwards. A camshaft adjuster/camshaft combination (26) including such a camshaft adjuster (1) and a camshaft (2) which has a connecting piece (20) that projects radially. The projection (13) preferably engages behind the connecting piece (20). A method for assembling the camshaft adjuster/camshaft combination (26) is also provided.