公开(公告)号：US09234467B2

公开(公告)日：2016-01-12

申请号：US14008811

申请日：2013-02-25

Applicant: Jacobs Vehicle Systems, Inc.

Inventor： Steven N. Ernest ,  Darius Metha

IPC: F02D13/04 ,  F01L1/34 ,  F02D13/02 ,  F01L13/06 ,  F01L1/24 ,  F01L1/08

CPC classification number: F01L13/0036 ,  F01L1/08 ,  F01L1/24 ,  F01L13/06 ,  F02D13/0246 ,  F02D13/0273 ,  F02D13/04 ,  F02D41/006 ,  F02D41/008 ,  F02D41/12 ,  F02D2041/001 ,  Y02T10/47

Abstract: A valve actuation system for an internal combustion engine is disclosed. The engine has a first set of cylinders having a first set of exhaust valves and a second set of cylinders having a second set of exhaust valves. The valve actuation system for the exhaust valves includes one or more first cams having a compression-release lobe and a main exhaust lobe adapted to transfer valve actuation motion to the first set of exhaust valves, and one or more second cams having an early exhaust valve opening (EEVO) lobe and a main exhaust lobe adapted to transfer valve actuation motion to the second set of exhaust valves. The valve actuation system may provide any combination of (i) main exhaust valve actuation with or without compression release actuation with (ii) main exhaust valve actuation with or without EEVO for the two sets of cylinders.

Abstract translation: 公开了一种用于内燃机的阀致动系统。 发动机具有具有第一组排气阀的第一组气缸和具有第二组排气阀的第二组气缸。 用于排气阀的阀致动系统包括一个或多个第一凸轮，其具有压缩释放凸角和适于将阀致动运动转移到第一组排气门的主排气凸轮，以及具有早期排气阀的一个或多个第二凸轮 开口（EEVO）凸角和适于将阀致动运动转移到第二组排气阀的主排气杆。 阀致动系统可以提供以下组合：（i）具有或不具有压缩释放致动的主排气阀致动与（ii）具有或不具有用于两组气缸的EEVO的主排气阀致动。

公开(公告)号：US20150345342A1

公开(公告)日：2015-12-03

申请号：US14552115

申请日：2014-11-24

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Byong Young CHOI ,  Soo Hyung Woo ,  Ju Hun Lee ,  Jin Wook Son ,  Seung Kook Han

IPC: F01L1/08 ,  F01L1/34

CPC classification number: F01L1/08 ,  F01L1/34 ,  Y10T29/49233

Abstract: A short duration cam of a variable valve lift apparatus has a cam lift acceleration including a first peak formed before a center of the cam lift acceleration, and a second peak formed after the center of the cam lift acceleration. A relative ratio of a smaller value to a greater value of the first peak and the second peak is 0.8 or more.

Abstract translation: 可变气门提升装置的短时间凸轮具有包括在凸轮升程加速度的中心之前形成的第一峰值的凸轮升程加速度和在凸轮升程加速度的中心之后形成的第二峰值。 第一峰值和第二峰值的较小值与较大值的相对比为0.8以上。

公开(公告)号：US09091204B2

公开(公告)日：2015-07-28

申请号：US14213767

申请日：2014-03-14

Applicant: McAlister Technologies, LLC

Inventor： Roy Edward McAlister

IPC: F01L11/02 ,  F02B75/02 ,  F02F3/24 ,  F01L1/08 ,  F01L21/04

CPC classification number: F02B75/02 ,  F01L1/08 ,  F01L11/02 ,  F01L21/04 ,  F02B2075/025 ,  F02F3/24

Abstract: An internal combustion engine comprising a combustion chamber having a surrounding sidewall with a piston slideably disposed in the surrounding sidewall. A motion conversion mechanism is connected to the piston via a piston rod, and is operative to convert reciprocating motion of the piston into rotary motion. The motion conversion mechanism comprises a cam drum and at least one roller connected to the piston rod. A piston valve including a valve head and a valve stem extends through the piston. The piston valve is moveable between an open position and a closed position to control fluid movement through the flow passage. The valve head is pivotably connected to the valve stem and the engine includes a linkage connected to the valve head that is operative to pivot the valve head between an intake position and an exhaust position.

Abstract translation: 一种内燃机，其包括燃烧室，所述燃烧室具有可滑动地设置在所述周围侧壁中的活塞的周围侧壁。 运动转换机构通过活塞杆连接到活塞，并且可操作以将活塞的往复运动转换成旋转运动。 运动转换机构包括凸轮鼓和连接到活塞杆的至少一个辊。 包括阀头和阀杆的活塞阀通过活塞延伸。 活塞阀可在打开位置和关闭位置之间移动，以控制通过流动通道的流体运动。 阀头可枢转地连接到阀杆，并且发动机包括连接到阀头的连杆，其可操作以在进气位置和排气位置之间枢转阀头。

公开(公告)号：US08851048B2

公开(公告)日：2014-10-07

申请号：US13257240

申请日：2009-04-27

Applicant: Zdenek S. Meistrick

Inventor： Zdenek S. Meistrick

IPC: F02D13/04 ,  F01L1/34 ,  F01L1/08 ,  F01L1/18 ,  F01L13/06

CPC classification number: F01L13/06 ,  F01L1/08 ,  F01L1/18 ,  F01L13/065

Abstract: A system for actuating an engine valve is disclosed. The system may include a rocker arm shaft (110) having a control fluid supply passage (112) and an exhaust rocker arm (500) pivotally mounted on the rocker arm shaft (110). A cam (210) for imparting main exhaust valve actuation to the exhaust rocker arm (500) may contact a cam roller associated with the exhaust rocker arm. A valve bridge (300) may be disposed between the exhaust rocker arm (500) and first and second engine valves (400, 450). A sliding pin (310) may be provided in the valve bridge (300), said sliding pin contacting the first engine valve (400). An engine braking rocker arm (100) may be pivotally mounted on the rocker arm shaft (110) adjacent to the exhaust rocker arm (500). The engine braking rocker arm may have a central opening, a hydraulic passage (102) connecting the central opening with a control valve (130), and a fluid passage (105) connecting the control valve with an actuator piston assembly (140). The actuator piston assembly may include an actuator piston (141) adapted to contact the sliding pin (310) during engine braking operation. A bushing (115) may be disposed between the engine braking rocker arm (100) and the rocker arm shaft (110). The bushing may have a port (118) which registers with the hydraulic passage (102). A cam (200) is provided for imparting engine braking actuation to the engine braking rocker arm (100). A plate (122) is fastened to a back end of the engine braking rocker arm (100), and a spring (124) biases the plate and the engine braking rocker arm (110) into contact with the cam (200).

Abstract translation: 公开了一种用于致动发动机气门的系统。 该系统可以包括具有可枢转地安装在摇臂轴（110）上的控制流体供应通道（112）和排气摇臂（500）的摇臂轴（110）。 用于将主排气门致动赋予排气摇臂（500）的凸轮（210）可以接触与排气摇臂相关联的凸轮辊。 阀桥（300）可以设置在排气摇臂（500）与第一和第二发动机气门（400,450）之间。 可以在阀桥（300）中设置滑动销（310），所述滑动销与第一发动机气门（400）接触。 发动机制动摇臂（100）可以枢转地安装在靠近排气摇臂（500）的摇臂轴（110）上。 发动机制动摇臂可以具有中心开口，将中心开口与控制阀（130）连接的液压通道（102）和将控制阀与致动器活塞组件（140）连接的流体通道（105）。 致动器活塞组件可包括在发动机制动操作期间适于接触滑动销（310）的致动器活塞（141）。 衬套（115）可设置在发动机制动摇臂（100）和摇臂轴（110）之间。 衬套可以具有与液压通道（102）对准的端口（118）。 提供凸轮（200），用于将发动机制动致动赋予发动机制动摇臂（100）。 板（122）被固定到发动机制动摇臂（100）的后端，并且弹簧（124）将板和发动机制动摇臂（110）偏压成与凸轮（200）接触。

公开(公告)号：US08534252B2

公开(公告)日：2013-09-17

申请号：US12984959

申请日：2011-01-05

Applicant: Glenn E. Clever ,  Frederick J. Rozario ,  Shekhar G. Wakade ,  Joseph E. Robbins

Inventor： Glenn E. Clever ,  Frederick J. Rozario ,  Shekhar G. Wakade ,  Joseph E. Robbins

IPC: F01L1/047 ,  F01L1/08

CPC classification number: B21D53/845 ,  B21D39/20 ,  B23P11/005 ,  B23P2700/02 ,  F01L1/047 ,  F01L2001/0473 ,  F01L2103/01

Abstract: A camshaft may include a first shaft, a first lobe member, and a second lobe member. The first shaft may include an annular wall defining a first bore. The wall may include a first portion having a first radial outer surface and a second portion having a second radial outer surface that is radially offset relative to the first radial outer surface. The first lobe member may define a second bore having the first portion of the first shaft located therein and frictionally engaged with the first shaft for rotation with the first shaft. The second lobe member may define a third bore having the second portion of the first shaft located therein. The second lobe member may be rotatably disposed on the second portion of the first shaft.

Abstract translation: 凸轮轴可以包括第一轴，第一凸角构件和第二凸角构件。 第一轴可以包括限定第一孔的环形壁。 壁可以包括具有第一径向外表面的第一部分和具有相对于第一径向外表面径向偏移的第二径向外表面的第二部分。 第一叶片构件可以限定第二孔，其具有位于其中的第一轴的第一部分并与第一轴摩擦接合以与第一轴一起旋转。 第二叶片构件可以限定具有位于其中的第一轴的第二部分的第三孔。 第二凸角构件可以可旋转地设置在第一轴的第二部分上。

公开(公告)号：US20120285408A1

公开(公告)日：2012-11-15

申请号：US13470457

申请日：2012-05-14

Applicant: Uwe Richter

Inventor： Uwe Richter

IPC: F01L1/047 ,  F01L1/08

CPC classification number: F01L13/0036 ,  F01L2001/0473 ,  F01L2001/0476 ,  F01L2013/0052

Abstract: A valve train device for switching lift of gas exchange valves of an internal combustion engine includes a camshaft including a carrier shaft and a cam assembly disposed non-rotatably and axially displaceably on the carrier shaft via a guide. The cam assembly includes a bearing region, at least one cam group having at least two cams and a first and a second axial contour. A bearing bush is mounted non-rotatably and axially displaceably in a camshaft bearing and radially supports the camshaft in the camshaft bearing. The cam assembly is mounted rotatably and axially displaceably in the bearing bush in the bearing region. The bearing bush includes a first axial reverse opposing contour that corresponds to, and is switchable into operative contact with, the first axial contour and a second axial reverse opposing contour that corresponds to, and is switchable into operative contact with, the second axial contour.

Abstract translation: 一种用于切换内燃机的气体交换阀的升程的气门机构包括凸轮轴，该凸轮轴包括载体轴和凸轮组件，所述凸轮轴经由引导件不可旋转地且轴向地移动到载体轴上。 凸轮组件包括轴承区域，至少一个具有至少两个凸轮的凸轮组和第一和第二轴向轮廓。 轴承衬套在凸轮轴轴承中不可转动地轴向地位移地安装，并且在凸轮轴轴承中径向地支撑凸轮轴。 凸轮组件可旋转地轴向地可移动地安装在轴承区域中的轴承衬套中。 轴承衬套包括与第一轴向轮廓对应并且可切换成与第一轴向轮廓有效接触的第一轴向反向相对轮廓和与第二轴向轮廓对应并且可切换成与第二轴向轮廓有效接触的第二轴向反向轮廓。

公开(公告)号：US20100242884A1

公开(公告)日：2010-09-30

申请号：US12800477

申请日：2010-05-14

Applicant: Jens Meintschel ,  Thomas Stolk ,  Alexander Von Gaisberg-Helfenberg

Inventor： Jens Meintschel ,  Thomas Stolk ,  Alexander Von Gaisberg-Helfenberg

IPC: F01L1/08

CPC classification number: F01L13/0036 ,  F01L1/053 ,  F01L2013/0052

Abstract: In a valve drive device, especially for an internal combustion engine including a camshaft with a cam element which is axially movably supported on the camshaft but in a rotationally fixed manner, the cam element includes a gate structure and an actuation device is provided with at least one shift element for engagement with the gate arrangement for axially displacing the cam element and the shift element has a rotationally asymmetrical basic shape in order to follow the gate structure when placed in engagement therewith.

Abstract translation: 在一种阀驱动装置中，特别是用于内燃机，其包括凸轮轴，该凸轮轴具有轴向可移动地支撑在凸轮轴上但是以旋转固定的方式支撑凸轮元件，所述凸轮元件包括门结构，致动装置至少设置有 用于与用于轴向移位凸轮元件和换挡元件的门装置接合的一个换档元件具有旋转非对称的基本形状，以便在与其配合时跟随门结构。

公开(公告)号：US07150272B2

公开(公告)日：2006-12-19

申请号：US10710755

申请日：2004-07-30

Applicant: Per Persson

Inventor： Per Persson

IPC: F02M25/07 ,  F01L1/34 ,  F01L31/16 ,  F01L1/08 ,  F01L13/00 ,  F02D13/02

CPC classification number: F02D13/04 ,  F01L1/18 ,  F01L1/181 ,  F01L13/00 ,  F01L13/065 ,  F01L2001/186 ,  F01L2105/00 ,  F01L2820/01 ,  F02B2075/027 ,  F02D13/0246 ,  F02D13/0273 ,  F02M26/01

Abstract: Method and arrangement for delivering EGR gas to combustion spaces in a multi-cylinder, four-stroke internal combustion engine. Each cylinder, with an associated piston, has at least one inlet valve and at least one exhaust valve (10) for controlling fluid interconnection between the combustion space in the cylinder and an intake system and an exhaust system, respectively. A rotatable camshaft (18) having a cam curve (23) is designed to interact with a cam follower (17) for operation of the exhaust valve (10) during a first opening and closing phase. The cam curve (23) is also designed to interact with a second cam follower (20) during a second opening and closing phase which is phase-offset in relation to the first aforementioned opening and closing phase. This configuration facilitates the cylinder being connected to the exhaust system during the induction stroke, once the exhaust stroke is completed.

Abstract translation: 将EGR气体输送到多缸四冲程内燃机中的燃烧空间的方法和装置。 具有相关活塞的每个气缸具有至少一个入口阀和至少一个用于分别控制气缸中的燃烧空间与进气系统和排气系统之间的流体互连的排气阀（10）。 具有凸轮曲线（23）的可旋转凸轮轴（18）被设计成与在第一打开和关闭阶段期间操作排气门（10）的凸轮从动件（17）相互作用。 凸轮曲线（23）还被设计成在与第一上述打开和关闭阶段相位偏移的第二打开和关闭阶段期间与第二凸轮从动件（20）相互作用。 一旦排气冲程完成，这种构造便于气缸在排气冲程期间连接到排气系统。

公开(公告)号：US20050188966A1

公开(公告)日：2005-09-01

申请号：US11059378

申请日：2005-02-17

Applicant: Brian Ruggiero ,  Zhou Yang ,  Neil Fuchs ,  Robb Janak ,  Shengqiang Huang

Inventor： Brian Ruggiero ,  Zhou Yang ,  Neil Fuchs ,  Robb Janak ,  Shengqiang Huang

IPC: F01L1/08 ,  F01L1/20 ,  F01L9/02 ,  F01L13/06 ,  F02D13/02 ,  F02D13/04 ,  F02M25/07

CPC classification number: F02D13/0273 ,  F01L1/08 ,  F01L1/20 ,  F01L9/025 ,  F01L13/06 ,  F01L13/065 ,  F01L2001/34446 ,  F01L2800/10 ,  F02D13/04 ,  F02M26/01

Abstract: A system and method for actuating one or more engine valves to produce an engine valve event is disclosed. The system may comprise: a housing; an accumulator disposed in the housing having a first open end and a second open end; a master piston slidably disposed in a first bore formed in the housing; a valve train element(s) for imparting motion to the master piston; and a slave piston slidably disposed in a second bore formed in the housing, the slave piston in fluid communication with the master piston through a high pressure hydraulic passage, wherein the first open end and the second open end of the accumulator are in communication with the high pressure hydraulic passage to selectively modify the imparted motion.

Abstract translation: 公开了一种用于致动一个或多个发动机气门以产生发动机气门事件的系统和方法。 该系统可以包括：壳体; 设置在壳体中的蓄能器具有第一开口端和第二开口端; 主活塞可滑动地设置在形成在壳体中的第一孔中; 用于向主活塞施加运动的气门机构元件; 以及从动活塞，其可滑动地设置在形成在所述壳体中的第二孔中，所述从动活塞通过高压液压通道与所述主活塞流体连通，其中所述蓄能器的第一开口端和所述第二开口端与所述主活塞连通， 高压液压通道，以选择性地改变所施加的运动。

公开(公告)号：US20050172925A1

公开(公告)日：2005-08-11

申请号：US10513878

申请日：2003-05-08

Applicant: Shinichi Kurosawa

Inventor： Shinichi Kurosawa

IPC: F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/26 ,  F01L1/46 ,  F01L3/10 ,  F01L13/00 ,  F02B23/10 ,  F02B75/12 ,  F02F1/24 ,  F02F1/38 ,  F02F1/42 ,  F02M59/10 ,  F02M61/14 ,  F02N3/00

CPC classification number: F01L1/08 ,  F01L1/047 ,  F01L1/053 ,  F01L1/18 ,  F01L1/267 ,  F01L1/46 ,  F01L1/462 ,  F01L3/10 ,  F01L13/0036 ,  F01L2001/0537 ,  F02B23/104 ,  F02B2075/125 ,  F02B2275/18 ,  F02F1/242 ,  F02F1/38 ,  F02M59/102 ,  F02M61/14 ,  Y02T10/123

Abstract: A spring seat is formed of an outer spring seat 10k and an inner spring seat 10j formed in a stepped-down shape so as to be positioned lower than the outer spring seat 10k, and a valve spring is formed of an outer spring 37 and an inner spring 36 that is disposed coaxially inside the outer spring 37 and that is larger in spring length than the outer spring 37.

Abstract translation: 弹簧座由外弹簧座10k和内弹簧座10j形成，该内弹簧座10j形成为比外弹簧座10k更低的下降形状，并且阀弹簧由外弹簧 37和内弹簧36，其同轴地设置在外弹簧37的内部，并且弹簧长度大于外弹簧37。