公开(公告)号：US09803516B2

公开(公告)日：2017-10-31

申请号：US15060623

申请日：2016-03-04

Applicant: Caterpillar Inc.

Inventor： Jeremy D. Byrd ,  Kevin W. Redinbo ,  Bryce L. Tiller

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/14 ,  F01L1/16 ,  F01L1/181 ,  F01L1/26 ,  F01L2001/054 ,  F01L2101/00 ,  F01L2105/00 ,  F01L2107/00

Abstract: An internal combustion engine having a valve lifter assembly is disclosed. The internal combustion engine comprising an engine head having at least two wells adapted to receive at least one valve lifter, the at least one valve lifter includes a flat surface, at least one spacer installed within the engine head having a first surface, a hollow portion, and a second surface, the first surface is tapered with respect to a vertical axis of the at least one spacer, and a tie-bar plate for coupling the at least one spacer using head bolts. The at least one spacer and the at least one valve lifter are operatively arranged during operation in such a way that the flat surface of the at least one valve lifter faces the first surface of the at least one spacer to prevent rotation of the at least one valve lifter.

公开(公告)号：US20160312664A1

公开(公告)日：2016-10-27

申请号：US15200089

申请日：2016-07-01

Applicant: Caterpillar Inc.

Inventor： Justin Eric Shreve ,  Jakub Marcin Walczak ,  Kevin W. Redinbo ,  Jeremy Byrd

IPC: F01L1/14 ,  F01L1/04

CPC classification number: F01L1/146 ,  F01L1/182 ,  F01L1/20 ,  F01L1/26 ,  F01L2001/054 ,  F01L2105/00 ,  F01L2107/00

Abstract: A valve lifter of a valve train of an engine is provided. The valve lifter includes a first end adapted to engage with a cam of the engine. The valve lifter also includes a second end distal to the first end. The second end is adapted to engage with a pushrod of the valve train. The valve lifter further includes a flat surface provided on an outer surface of the valve lifter. The flat surface is adapted to engage with a protrusion provided in a cylinder head of the engine. The fiat surface of the valve lifter is arranged and adapted to mate with the protrusion of the cylinder head.

Abstract translation: 提供发动机的气门机构的气门挺杆。 气门挺杆包括适于与发动机的凸轮啮合的第一端。 阀提升器还包括远离第一端的第二端。 第二端适于与气门机构的推杆接合。 气门挺杆还包括设置在气门挺杆的外表面上的平面。 平坦表面适于与设置在发动机的气缸盖中的突起接合。 阀提升器的平台表面布置并适于与气缸盖的突出部配合。

公开(公告)号：US10006317B2

公开(公告)日：2018-06-26

申请号：US14869291

申请日：2015-09-29

Applicant: Caterpillar Inc.

Inventor： Indrajith Kizhakkethara ,  Gopinath Baskaran ,  Ashwin A. Hattiangadi ,  Rong Qu ,  Kevin W. Redinbo

IPC: F01L1/14 ,  F01L1/18 ,  F01L1/46 ,  F01L3/00 ,  F01L1/20 ,  F01L1/26 ,  F01L1/32 ,  F01L3/08 ,  F01L3/10 ,  F01L3/22 ,  F01L1/047

CPC classification number: F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L1/32 ,  F01L1/46 ,  F01L1/462 ,  F01L3/00 ,  F01L3/08 ,  F01L3/10 ,  F01L3/22 ,  F01L2001/054 ,  F01L2103/01 ,  F01L2105/00 ,  F01L2820/01

Abstract: A valve actuation system is disclosed for use with an internal combustion engine. The valve actuation system may have a rocker shaft, a rocker arm pivotally mounted on the rocker shaft, at least one cam follower and a pushrod connecting the at least one cam follower to the rocker arm. The valve actuation system may also have a plurality of gas exchange valves, and a bridge connecting the rocker arm to the valves. The valve actuation system may further have at least one spring disposed around each of the valves and configured to bias each of the valves toward closed positions, and a rotocoil configured to rotatably connect the at least one spring to each of the valves. The rotocoil may have an internal chamfer at a bridge end with an angle of about 26-28°. The at least one spring may have an assembled load of about 750-850 N.

公开(公告)号：US20170254231A1

公开(公告)日：2017-09-07

申请号：US15060623

申请日：2016-03-04

Applicant: Caterpillar Inc.

Inventor： Jeremy D. Byrd ,  Kevin W. Redinbo ,  Bryce L. Tiller

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/14 ,  F01L1/16 ,  F01L1/181 ,  F01L1/26 ,  F01L2001/054 ,  F01L2101/00 ,  F01L2105/00 ,  F01L2107/00

Abstract: An internal combustion engine having a valve lifter assembly is disclosed. The internal combustion engine comprising an engine head having at least two wells adapted to receive at least one valve lifter, the at least one valve lifter includes a flat surface, at least one spacer installed within the engine head having a first surface, a hollow portion, and a second surface, the first surface is tapered with respect to a vertical axis of the at least one spacer, and a tie-bar plate for coupling the at least one spacer using head bolts. The at least one spacer and the at least one valve lifter are operatively arranged during operation in such a way that the flat surface of the at least one valve lifter faces the first surface of the at least one spacer to prevent rotation of the at least one valve lifter.