公开(公告)号：US09714587B2

公开(公告)日：2017-07-25

申请号：US14595770

申请日：2015-01-13

Applicant: Caterpillar Inc.

Inventor： David Andrew Cyborski ,  John Stephen Pipis, Jr. ,  Edwin H. Langewisch ,  Sanjay Kumar

IPC: F01L1/14 ,  F01L1/26 ,  F16K1/14 ,  F16K1/32 ,  F01L1/24 ,  F01L1/047

CPC classification number: F01L1/26 ,  F01L1/146 ,  F01L1/2411 ,  F01L2001/054 ,  F01L2105/00 ,  F01L2250/02 ,  F01L2250/04 ,  F16K1/14 ,  F16K1/32

Abstract: A bridge assembly is disclosed for use with an internal combustion engine. The bridge assembly may have a valve bridge, a cylindrical housing disposed within the valve bridge, and a plunger disposed in the cylindrical housing and protruding from the valve bridge. The bridge assembly may also have a valve housing, a post located inside the valve housing, a plurality of obliquely angled ports passing through a straight annular wall portion of the valve housing, and a plurality of radially oriented ports passing through a tapered annular wall portion of the housing. The bridge assembly may further have a valve seat disposed at least partially inside the plunger, a ball disposed within the valve housing and movable between a distal end of the post and the valve seat, a first spring disposed over the post, and a second spring disposed within the cylindrical housing.

公开(公告)号：US09523291B2

公开(公告)日：2016-12-20

申请号：US14661900

申请日：2015-03-18

Applicant: Caterpillar Inc.

Inventor： Charles F. Coffey ,  Edwin H. Langewisch ,  Ashwin A. Hattiangadi ,  David A. Cyborski ,  John S. Pipis, Jr. ,  Kevin D. Yoder

IPC: F01L1/24 ,  F01L1/047 ,  F01L1/18 ,  F01L1/26

CPC classification number: F01L1/2411 ,  F01L1/181 ,  F01L1/20 ,  F01L1/24 ,  F01L1/26 ,  F01L1/267 ,  F01L2001/2433 ,  F01L2001/2444

Abstract: A valve actuation system is disclosed for an engine. The system may have at least one gas exchange valve, a rocker shaft, a camshaft, a rocker arm connected to the rocker shaft and operatively engaged with the camshaft, a valve bridge engaged with the at least one gas exchanger valve, a lash adjuster disposed in the valve bridge, and a button configured to slide on the valve bridge. The system may further include a pin fluidly connecting the rocker arm to the button and having an elongated cylindrical shaft with a first open end inside the rocker arm and a second end inside the button. The pin may also have a head connected to and a reservoir formed in the elongated cylindrical shaft. The pin may further have passages extending from the bore of the rocker arm to the reservoir, and s passage extending from the reservoir through the head.

Abstract translation: 公开了一种用于发动机的阀致动系统。 该系统可以具有至少一个气体交换阀，摇臂轴，凸轮轴，连接到摇臂轴并与凸轮轴可操作地接合的摇臂，与至少一个气体交换阀接合的阀桥，设置的间隙调节器 在阀桥中，以及构造成在阀桥上滑动的按钮。 该系统还可以包括将摇臂与按钮流体连接的销，并且具有细长的圆柱形轴，在摇臂内部具有第一开口端，并且在按钮内部具有第二端。 销还可以具有连接到细长圆柱形轴上的头部和形成在细长圆柱形轴中的储存器。 销还可以具有从摇臂的孔延伸到储存器的通道，以及从储存器延伸穿过头部的通道。