公开(公告)号：US10294859B2

公开(公告)日：2019-05-21

申请号：US15028638

申请日：2014-10-13

Applicant: AVL LIST GMBH

Inventor： Helmut Melde-Tuczai ,  Stefan Lichtenegger ,  Bernhard Hoedl

IPC: F02B75/04 ,  F16C7/06 ,  F02F1/00 ,  F02F3/00

Abstract: The invention relates to a length-adjustable connecting rod (1) for a reciprocating-piston machine, in particular for an internal combustion engine, comprising at least one first rod part (6) having a small connecting rod eye (2) and a second rod part (9) having a large connecting rod eye (4), which two rod parts can be moved in relation to each other and/or in each other in a telescopic manner, wherein the second rod part forms a guiding cylinder (8) and the first rod part forms a piston element (7) that can be longitudinally displaced in the guiding cylinder, wherein a first high-pressure chamber (10) is spanned between the second rod part and the piston element on the side of the piston element facing the large connecting rod eye, into which first high-pressure chamber at least one first oil channel (20) leads, in which in particular a first check valve (21) opening in the direction of the first high-pressure chamber is arranged, wherein at least a first return channel (22) extends from the first high-pressure chamber, an outflow cross-section of which return channel can be closed by a control valve (13) in a first position and can be opened by the control valve in a second position, wherein the control valve preferably has a control piston (15) that can be axially displaced in an accommodating bore (14) of the second rod part of the connecting rod, which control piston in particular can be moved into the first position by means of a return spring (16) and can be moved into the second position against the force of the return spring by means of an actuating force. In order to be able to change the compression ratio as simply possible, the piston element according to the invention is designed as a piston that is operative at both ends.

公开(公告)号：US10184366B2

公开(公告)日：2019-01-22

申请号：US14896167

申请日：2014-06-17

Applicant: AVL LIST GMBH

Inventor： Helmut Melde-Tuczai ,  Bernhard Hödl ,  Andreas Zurk

IPC: F01L13/00 ,  F01L1/18 ,  F01L3/10 ,  F01L3/20 ,  F16K31/524

Abstract: A valve actuating device for variable valve control wherein at least one articulation point between a valve lever and a gas exchange valve, or a force transmission element which acts on the gas exchange valve, is adjustable by way of an adjusting device which includes a piston displaceably mounted in the valve lever, a piston rod which is connected to the piston is connected in an articulated manner at a first articulation point to a first end of a push rod whose second end is connected in an articulated manner at a second articulation point to the gas exchange valve, or the force transmission part which acts on the gas exchange valve, the first articulation point being displaced in the longitudinal direction of the piston rod at least between a first position and a second position.

公开(公告)号：US20160237889A1

公开(公告)日：2016-08-18

申请号：US15028638

申请日：2014-10-13

Applicant: AVL LIST GMBH

Inventor： Helmut Melde-Tuczai ,  Stefan Lichtenegger ,  Bernhard Hoedl

IPC: F02B75/04 ,  F02F3/00 ,  F02F1/00 ,  F16C7/06

CPC classification number: F02B75/045 ,  F02F1/00 ,  F02F3/00 ,  F16C7/04 ,  F16C7/06 ,  F16C2360/22

Abstract: The invention relates to a length-adjustable connecting rod (1) for a reciprocating-piston machine, in particular for an internal combustion engine, comprising at least one first rod part (6) having a small connecting rod eye (2) and a second rod part (9) having a large connecting rod eye (4), which two rod parts can be moved in relation to each other and/or in each other in a telescopic manner, wherein the second rod part forms a guiding cylinder (8) and the first rod part forms a piston element (7) that can be longitudinally displaced in the guiding cylinder, wherein a first high-pressure chamber (10) is spanned between the second rod part and the piston element on the side of the piston element facing the large connecting rod eye, into which first high-pressure chamber at least one first oil channel (20) leads, in which in particular a first check valve (21) opening in the direction of the first high-pressure chamber is arranged, wherein at least a first return channel (22) extends from the first high-pressure chamber, an outflow cross-section of which return channel can be closed by a control valve (13) in a first position and can be opened by the control valve in a second position, wherein the control valve preferably has a control piston (15) that can be axially displaced in an accommodating bore (14) of the second rod part of the connecting rod, which control piston in particular can be moved into the first position by means of a return spring (16) and can be moved into the second position against the force of the return spring by means of an actuating force. In order to be able to change the compression ratio as simply possible, the piston element according to the invention is designed as a piston that is operative at both ends.

Abstract translation: 本发明涉及一种用于往复活塞机械的长度可调的连杆（1），特别是用于内燃机，包括至少一个具有小连杆眼（2）的第一杆部分（6）和第二 具有大连杆眼（4）的杆部（9），其中两个杆部分可以相对于彼此和/或彼此以伸缩方式移动，其中第二杆部分形成引导缸（8） 并且所述第一杆部分形成可以在所述引导筒中纵向移位的活塞元件（7），其中在所述第二杆部分和所述活塞元件之间跨越所述活塞元件侧的第一高压室（10） 面对大连杆眼，其中至少一个第一油通道（20）引导的第一高压腔室中，其中布置有特别是在第一高压腔室的方向上开口的第一止回阀（21） 其中至少第一返回通道（22）延伸 从第一高压室流出横截面，其返回通道可以由控制阀（13）在第一位置关闭，并且可以由控制阀在第二位置打开，其中控制阀优选地具有 可以在连杆的第二杆部分的容纳孔（14）中轴向移位的控制活塞（15），其特别地控制活塞可通过复位弹簧（16）移动到第一位置，并且 可以通过致动力抵抗复位弹簧的力而移动到第二位置。 为了能够简单地改变压缩比，根据本发明的活塞元件被设计为在两端操作的活塞。

公开(公告)号：US20160130992A1

公开(公告)日：2016-05-12

申请号：US14896167

申请日：2014-06-17

Applicant: AVL LIST GMBH

Inventor： Helmut Melde-Tuczai ,  BERNHARD HÖDL ,  ANDREAS ZURK

IPC: F01L13/00 ,  F01L3/10 ,  F01L3/20 ,  F16K31/524

CPC classification number: F01L13/0063 ,  F01L1/185 ,  F01L3/10 ,  F01L3/20 ,  F01L13/0015 ,  F01L13/0021 ,  F16K31/524

Abstract: It relates to a valve actuating device (4) for variable valve control, wherein at least one articulation point (16, 18) between the valve lever (9) and the gas exchange valve (2, 3) or a force transmission element which acts on the gas exchange valve (2, 3) is configured so as to be adjustable via an adjusting device. In order to make jolt-free valve actuation possible, it is proposed that the adjusting device has a piston (13) which is mounted displaceably in the valve lever (9) and adjoins a pressure chamber (19, 20), wherein a piston rod (15) which is connected to the piston (13) is connected in an articulated manner at a first articulation point (16) to a first end of a push rod (17), the second end of which is connected in an articulated manner at a second articulation point (18) to the gas exchange valve (2, 3) or the force transmission part which acts on the gas exchange valve (2, 3), with the result that the first articulation point (16) can be displaced in the longitudinal direction of the piston rod (15) at least between a first position and a second position.

Abstract translation: 其涉及用于可变阀控制的阀致动装置（4），其中在阀杆（9）和气体交换阀（2,3）之间的至少一个铰接点（16,18）或力传递元件 在气体交换阀（2,3）上，通过调节装置可调整。 为了使无抖动的阀门致动成为可能，建议调节装置具有可移动地安装在阀杆（9）中并与压力室（19,20）邻接的活塞（13），其中活塞杆 连接到活塞（13）的连接件（15）在第一铰接点（16）处以铰接的方式连接到推杆（17）的第一端，其第二端以铰接的方式连接在 第二铰接点（18）到气体交换阀（2,3）或作用在气体交换阀（2,3）上的力传递部分，结果是第一铰接点（16）可以在 活塞杆（15）的纵向方向至少在第一位置和第二位置之间。

公开(公告)号：US20150122077A1

公开(公告)日：2015-05-07

申请号：US14412310

申请日：2013-07-01

Applicant: AVL LIST GMBH

Inventor： Helmut Melde-Tuczai ,  Bernhard Hoedl ,  Andreas Zurk ,  Wolfgang Schoeffmann

IPC: F16C7/06

CPC classification number: F16C7/06 ,  F02B75/045 ,  F16C2360/22 ,  Y10T74/2151

Abstract: The invention relates to a length-adjustable con rod (1) for a reciprocating piston engine, particularly an internal combustion engine, having at least a first and a second rod part (2, 4), wherein the two rod parts (2, 4) can be pushed together and/or inside one another in a telescoping manner, wherein the second rod part (4) forms a guide cylinder (4a) and the first rod part (2) a piston element (3) which can be pushed longitudinally in the guide cylinder (4a), wherein a high-pressure chamber (4b), into which at least one oil channel (10) opens, is clamped between the first and the second rod parts (2, 4). To enable the compression ratio to be adjusted in the simplest and most reliable manner possible, according to the invention the two rod parts (2, 4) can be fixed, by a locking device (32), relative to one another in at least one position, preferably corresponding to a minimum length of the con rod (1).

Abstract translation: 本发明涉及一种用于往复式活塞发动机，特别是内燃机的长度可调整杆（1），其具有至少第一和第二杆部分（2,4），其中两个杆部分（2,4） ）可以以可伸缩的方式被推在一起和/或彼此内部，其中第二杆部分（4）形成导向缸（4a），并且第一杆部分（2）形成可纵向推动的活塞元件（3） 在引导缸（4a）中，其中至少一个油通道（10）打开的高压室（4b）被夹在第一和第二杆部件（2,4）之间。 为了使压缩比能够以最简单和最可靠的方式进行调节，根据本发明，两个杆部件2,4可以通过锁定装置（32）相对于彼此在至少一个 位置，优选地对应于杆（1）的最小长度。