公开(公告)号：US20240200475A1

公开(公告)日：2024-06-20

申请号：US18555020

申请日：2022-04-14

Applicant: Eaton Intelligent Power Limited

Inventor： Emanuele RAIMONDI ,  Nicola ANDRISANI

IPC: F01L1/24 ,  F01L1/18 ,  F01L1/46 ,  F01L13/00 ,  F01L13/06

CPC classification number: F01L1/2416 ,  F01L1/181 ,  F01L1/46 ,  F01L2001/467 ,  F01L13/0005 ,  F01L2013/001 ,  F01L13/06

Abstract: A switchable castellation assembly can include a lost motion shaft, the lost motion shaft being configured to transfer a lift profile to a valve end. A switchable castellation device can comprise a rotatable first spline bushing and a spline body, wherein the first spline bushing can be changed between a locked position and an unlocked position, and a lost motion can be obtained by sliding the lost motion shaft.

公开(公告)号：US20230407773A1

公开(公告)日：2023-12-21

申请号：US18211890

申请日：2023-06-20

Applicant: Pacbrake Company

Inventor： Kody TAYLOR ,  Peter STEC

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F01L1/26

CPC classification number: F01L13/06 ,  F01L1/26 ,  F01L1/2416 ,  F01L1/181

Abstract: An exhaust rocker assembly for operating an exhaust valve of an engine during a compression-release engine braking operation. The exhaust rocker assembly comprises an exhaust rocker arm and a self-contained compression brake control module (CBCM) mounted to the exhaust rocker arm and operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve provided between the casing and the actuation piston, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston. The control piston engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.

公开(公告)号：US11808181B2

公开(公告)日：2023-11-07

申请号：US17655209

申请日：2022-03-17

Applicant: Cummins Inc.

Inventor： Dixon Malcolm Correa

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F01L1/26

CPC classification number: F01L13/065 ,  F01L1/181 ,  F01L1/2416 ,  F01L1/26 ,  F01L2001/2444 ,  F01L2760/004

Abstract: An exhaust valve opening apparatus such as for an engine compression braking system includes a rocker shaft for supplying control fluid to an controllable valve and for distributing the control fluid to a primary and second piston arrangement that selectively opens an exhaust valve in response to the control fluid being pressurized.

公开(公告)号：US20180274396A1

公开(公告)日：2018-09-27

申请号：US15936061

申请日：2018-03-26

Applicant: Mahle International GmbH

Inventor： Patrick Altherr ,  Thorsten Ihne ,  Markus Walch

IPC: F01L1/24 ,  F01L1/047 ,  F01L1/18

CPC classification number: F01L1/2416 ,  F01L1/04 ,  F01L1/047 ,  F01L1/053 ,  F01L1/12 ,  F01L1/18 ,  F01L1/181 ,  F01L1/24 ,  F01L1/267 ,  F01L2013/001 ,  F01L2013/105 ,  F01L2105/00

Abstract: A valve drive for an internal combustion engine may include a camshaft, at least one cam follower, at least one adjusting device, and at least one control shaft. The camshaft may include at least one cam group. The at least one cam group may include a first cam and a second cam. The at least one cam follower may be drive-connected to the first cam in a first position and to the second cam in a second position. The at least one adjusting device may include a first adjustable engagement element and a second adjustable engagement element. alternately adjustable between a basic position and a switching position. The at least one control shaft may include at least one control element group including a first control element and a second control element adjustable to a switching element position and to a basic element position.

公开(公告)号：US10082052B2

公开(公告)日：2018-09-25

申请号：US15427865

申请日：2017-02-08

Applicant: Caterpillar Inc.

Inventor： Ashwin A. Hattiangadi ,  Selvakumar Selvaraj

IPC: F01L1/18 ,  F01L1/24

CPC classification number: F01L1/2411 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L1/2416 ,  F01L1/26 ,  F01L1/32 ,  F01L1/462 ,  F01L2101/00 ,  F01L2103/00

Abstract: A replaceable hydraulic lash adjuster and method for assembling such are disclosed. The replaceable hydraulic lash adjuster includes a body, a piston, a check valve and a spring. The body configured to be received in and released from a compartment of a rocker arm. The body including a sidewall surrounding a floor. The floor including a passage that extends between an upper cavity and a lower cavity of the body. The piston disposed in the lower cavity. The piston defining a pocket. A check valve is disposed inside the lower cavity and a spring is disposed inside the pocket. The replacable hydraulic lash adjuster is configured to be slidingly removeable from the rocker arm.

公开(公告)号：US20170284313A1

公开(公告)日：2017-10-05

申请号：US15088195

申请日：2016-04-01

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Jeffrey Shewell

IPC: F02D13/02 ,  F01L1/34 ,  F01L13/00

CPC classification number: F02D13/0211 ,  F01L1/18 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L1/2416 ,  F01L1/34 ,  F01L13/0005 ,  F01L13/0015 ,  F01L13/0026 ,  F01L2001/186 ,  F01L2001/467 ,  F01L2013/001 ,  F01L2800/00

Abstract: A switchable rocker arm for valve deactivation is provided for a valve train of an internal combustion engine. The switchable rocker arm includes a valve side lever assembly, a cam side lever assembly, and a hydraulically actuated coupling assembly. The valve side lever assembly includes a first housing with a first rocker shaft bore. The cam side lever assembly includes a second housing with a first arm with a second rocker shaft bore and a second arm with a third rocker shaft bore. The first and second arms extend along opposed longitudinal sides of the cam side lever assembly such that the first, second and third rocker shaft bores are axially aligned. The coupling assembly is arranged at an end furthest away from a pivot axis for minimal loading and provides locking and unlocking of the switchable rocker arm to achieve full valve lift and no valve lift modes, respectively.

公开(公告)号：US20170074128A1

公开(公告)日：2017-03-16

申请号：US15342763

申请日：2016-11-03

Applicant: Eaton Corporation

Inventor： Austin Zurface ,  James Edward McCarthy, JR.

IPC: F01L13/00 ,  F01L1/053 ,  F01L1/24 ,  F01L1/18

CPC classification number: F01L13/0005 ,  F01L1/053 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/2416 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2001/2444 ,  F01L2013/001 ,  F01L2105/00

Abstract: A switching rocker arm assembly constructed in accordance to one example of the present disclosure can include an outer arm, an inner arm, a pivot axle, a bearing axle, a first torsional bearing axle spring and a second torsional bearing axle spring. The outer arm can have a first outer side arm and a second outer side arm. The outer arm can further include first and second torsional spring mounts. The inner arm can be disposed between the first and second outer side arms. The pivot axle can support the inner and outer arm for relative pivotal movement therearound. The bearing axle can support a bearing. The first torsional bearing axle spring can be mounted around the first torsional spring mount and have a first end engaged to the bearing axle and a second end engaged to the outer arm. The first end extends inboard relative to the second end.

Abstract translation: 根据本公开的一个示例构造的开关摇臂组件可以包括外臂，内臂，枢轴，支承轴，第一扭转轴轴和第二扭转轴弹簧。 外臂可以具有第一外侧臂和第二外侧臂。 外臂还可以包括第一和第二扭转弹簧座。 内臂可以设置在第一和第二外侧臂之间。 枢轴可支撑内臂和外臂，用于相对枢转运动。 轴承座可以支撑轴承。 第一扭转轴向弹簧可以安装在第一扭转弹簧座周围，并且具有接合到轴承轴的第一端和接合到外臂的第二端。 第一端相对于第二端在内侧延伸。

公开(公告)号：US20170016358A1

公开(公告)日：2017-01-19

申请号：US14929282

申请日：2015-10-31

Applicant: Hyundai Motor Company

Inventor： Seock Joong Yoon

IPC: F01L1/24

CPC classification number: F01L1/2416 ,  F01L1/181 ,  F01L1/26 ,  F01L2810/02

Abstract: A valve lash adjuster for vehicles may include a piston having a body and an opening/closing unit. The body has an open surface in a bottom and an oil passage extending from a rocker arm shaft to the open surface, such that oil flows through the oil passage. The opening/closing unit is disposed on the oil passage to selectively open the oil passage depending on a pressure of the oil. A cylinder accommodates the piston. The cylinder slides downward to form an oil chamber between an inner side surface thereof and the piston. The oil chamber contains the oil therein.

Abstract translation: 用于车辆的阀间隙调节器可以包括具有主体和开/关单元的活塞。 主体在底部具有开口表面，并且从摇臂轴延伸到开放表面的油通道，使得油流过油通道。 开闭单元设置在油路上，以根据油的压力选择性地打开油路。 气缸容纳活塞。 气缸向下滑动以在其内侧表面和活塞之间形成油室。 油室中含有油。

公开(公告)号：US09163566B2

公开(公告)日：2015-10-20

申请号：US14127259

申请日：2011-07-06

Applicant: Romain Le Forestier ,  Romain Riviere

Inventor： Romain Le Forestier ,  Romain Riviere

IPC: F01L1/18 ,  F02D9/06 ,  F01L13/00 ,  F01L13/06 ,  F01L13/08 ,  F01L1/24

CPC classification number: F02D9/06 ,  F01L1/181 ,  F01L1/2416 ,  F01L13/0021 ,  F01L13/06 ,  F01L13/08

Abstract: A valve actuation mechanism includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a valve opening actuator of each cylinder, via an activation piston, housed in a bore of the rocker and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly linked to the bore, from a first position to a second position, in which a cam follower of the rocker reads at least one auxiliary cam sector of a cam of the camshaft so as to perform an engine operating function. Each rocker includes a reset valve adapted to reduce fluid pressure in the chamber. The valve actuation mechanism includes, for each rocker, a reset cam profile adapted to open the reset valve when the activation piston has to be moved from its second position to its first position, and each reset valve includes a cam follower adapted to drive the reset valve as a function of the movement of the reset profile.

Abstract translation: 阀致动机构包括由凸轮轴移动的摇臂，每个摇杆适于通过活塞活塞在每个气缸的阀开启致动器的至少一部分上施加阀打开力，活塞活塞容纳在摇臂的孔中，并可与 在从第一位置到第二位置的流体连接到孔的腔室中的流体压力升高的作用下相对于摇杆，其中摇臂的凸轮从动件读取凸轮轴的凸轮的至少一个辅助凸轮部分 以执行发动机操作功能。 每个摇杆包括适于减小腔室中的流体压力的复位阀。 对于每个摇杆，阀致动机构包括当活塞活塞必须从其第二位置移动到其第一位置时适于打开复位阀的复位凸轮轮廓，并且每个复位阀包括适于驱动复位的凸轮随动件 阀作为复位曲线的运动的函数。

公开(公告)号：US20140283776A1

公开(公告)日：2014-09-25

申请号：US14220227

申请日：2014-03-20

Applicant: GT Technologies

Inventor： Scott P. Smith ,  Ira R. Stoody

IPC: F01L1/24

CPC classification number: F01L1/2416 ,  F01L1/185 ,  F01L1/2405 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2001/2444

Abstract: A dual feed hydraulic lash adjuster includes a plunger assembly slidingly disposed in a lash adjuster body and having an end adapted to cooperate with a valve actuating mechanism, the plunger assembly forming a low-pressure first chamber and a high-pressure second chamber with the body, the plunger assembly having a first aperture fluidly communicating with the first chamber, a passageway fluidly communicating with the first chamber, and a second aperture fluidly communicating with the passageway, and a separate fluid pressure separator disposed in the plunger assembly between the first aperture and the second aperture to prevent passage of hydraulic fluid between the first chamber and the passageway, wherein a passage is provided through the fluid pressure separator to provide for evacuation of air from the lash adjuster.

Abstract translation: 双进料液压间隙调节器包括滑动地设置在间隙调节器主体中并具有适于与阀致动机构配合的端部的柱塞组件，柱塞组件形成低压第一室和具有主体的高压第二室 所述柱塞组件具有与所述第一室流体连通的第一孔，与所述第一室流体连通的通道，以及与所述通道流体连通的第二孔，以及设置在所述柱塞组件中的第一孔和第二孔之间的单独流体压力分离器， 第二孔，以防止液压流体在第一腔室和通道之间通过，其中通过流体压力分离器提供通道以提供空气从间隙调节器排出。