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：US20200056515A1

公开(公告)日：2020-02-20

申请号：US16530067

申请日：2019-08-02

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Alexandre Camilo ,  Renato de Oliveira Ghiraldi

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

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：US10557385B2

公开(公告)日：2020-02-11

申请号：US15804901

申请日：2017-11-06

Applicant: BorgWarner Inc.

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

IPC: F01L13/00 ,  F01L1/348 ,  F01L1/047 ,  F01L1/352 ,  F01L1/08 ,  F01L1/34 ,  F01L1/344

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：US10247059B2

公开(公告)日：2019-04-02

申请号：US15510496

申请日：2015-06-18

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Ali Bayrakdar

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

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.

公开(公告)号：US20190078473A1

公开(公告)日：2019-03-14

申请号：US16124401

申请日：2018-09-07

Applicant: BorgWarner Inc.

Inventor： Daniel BROWN ,  Alexander L. KAPELEVICH

IPC: F01L1/348 ,  F02D13/02

Abstract: A variable camshaft timing device (10) that adjusts phase between a camshaft and a crankshaft including a camshaft ring gear (22) having a plurality of radially-inwardly facing gear teeth (24) each of which has an involute gear tooth profile; a sprocket ring gear (14) axially spaced from the camshaft ring gear (22) having a plurality of radially-inwardly facing gear teeth (18) each of which has an involute gear tooth profile; a compound planetary gear (26) having a camshaft planetary gear (74) and a sprocket planetary gear (72) that each face radially outwardly and include a plurality of radially-outwardly facing gear teeth (76, 78) having involute gear tooth profiles; and an eccentric shaft (28) that communicates rotational force from an electric motor (30) to the compound planetary gear (26) relatively displacing the camshaft ring gear (22) with respect to the sprocket ring gear (14).

公开(公告)号：US20170321785A1

公开(公告)日：2017-11-09

申请号：US15520456

申请日：2015-10-14

Applicant: BorgWarner Inc.

Inventor： Matthew W. CRUMP ,  Keith B. COBB

IPC: F16H7/08 ,  F01L1/02 ,  F01L1/348

CPC classification number: F16H7/08 ,  F01L1/022 ,  F01L1/348 ,  F16H7/0834 ,  F16H7/12 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0891

Abstract: A product for applying tension is disclosed. A block may have a first passage opening into the block. A body may have a first manifold and may be positioned against the block so that the first passage is open to the first manifold. The body may have a flow path for providing fluid from the first manifold to a second manifold and there through to a pressure chamber. The flow path may include a series of channels and may be configured to allow substantially unimpeded flow from the first manifold to the second manifold, and to impede flow from the second manifold to the first manifold. The flow path may be free of movable components.

公开(公告)号：US20170058725A1

公开(公告)日：2017-03-02

申请号：US15238907

申请日：2016-08-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki TOSHITANI

IPC: F01L1/348 ,  F16H7/06 ,  F01L9/04 ,  F01L1/02 ,  F01L1/047 ,  F16H57/035 ,  F16H57/025

CPC classification number: F01L1/022 ,  F01L1/053 ,  F01L1/344 ,  F01L1/352 ,  F01L1/46 ,  F01L2013/103 ,  F01L2103/00 ,  F01L2250/02 ,  F01L2800/17 ,  F01L2820/032 ,  F02F2007/0063 ,  F02F2007/0075 ,  F16H7/06 ,  F16H57/025 ,  F16H57/035

Abstract: An electric variable valve timing apparatus includes a sprocket unit and an electric motor. The electric motor is fixed to a chain cover with bolts. The chain cover includes plural bosses each having an internal thread to which one of the bolts is threaded. The bosses extend from the chain cover toward the sprocket unit to positions at which the bosses face an outer periphery of the sprocket unit in a radial direction. The bosses are arranged such that, when the sprocket unit moves downward from an attaching position, at which the sprocket unit is attached to the camshaft, at least two bosses are engaged with the sprocket unit to restrict downward movement of the sprocket unit, and that the sprocket unit is allowed to move between a location outside of a space covered by the chain cover and the attaching position.

Abstract translation: 电动可变气门正时装置包括链轮单元和电动机。 电动机用螺栓固定在链条盖上。 链条盖包括多个凸起，每个凸起具有内螺纹，一个螺栓与螺纹相啮合。 凸台从链盖向链轮单元延伸到在凸轮面向链轮单元的外周沿径向的位置。 该凸台被布置成使得当链轮单元从链轮单元附接到凸轮轴的安装位置向下移动时，至少两个凸台与链轮单元接合以限制链轮单元的向下运动，并且该链轮单元 允许链轮单元在由链盖覆盖的空间和附接位置之间的位置之间移动。

公开(公告)号：US5911203A

公开(公告)日：1999-06-15

申请号：US76287

申请日：1998-05-12

Applicant: Steven Lambert ,  Michael Lambert

Inventor： Steven Lambert ,  Michael Lambert

IPC: F01L1/34 ,  F01L1/348 ,  F01L7/02 ,  F01L7/06

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

Abstract: A modular rotary discoid valve assembly includes a housing for positioning on an engine 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 is formed with an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window whose shape and/or angular positions on the disc varies with increasing distance from the disc axis. The window is so positioned that when the member is rotated to a first angular position, the window is located opposite the intake passage whereby the working fluid can flow along the intake passage through the window to the cylinder and when the member is rotated to a second angular position, the window is located opposite the exhaust passage so that the working fluid can flow from the cylinder through the window along the exhaust passage. Thus, the assembly alternately opens and closes the intake and exhaust passages in a periodic manner. Preferably also, the valve assembly includes a throttle bar slidably mounted in the housing parallel to the rotary valve member. The throttle bar has a hole which is positioned opposite the intake passage. The bar is movable toward and away from the axis of the rotary valve member between a first position which places the hole in the throttle bar opposite a radially inner portion of the valve member and a second position which places that hole opposite a radially outer 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 bar. 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.