公开(公告)号：US09982576B2

公开(公告)日：2018-05-29

申请号：US15210117

申请日：2016-07-14

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Karl J. Haltiner, Jr.

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/02

CPC classification number: F01L1/3442 ,  F01L1/024 ,  F01L2001/3443 ,  F01L2001/34433

Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve body having a valve bore which extends along an axis, an annular groove extending radially outward from the valve bore and having a first width in the direction of the axis, and a passage which opens into the annular groove and which extends from the valve bore through the valve body radially outward from the valve bore such that the passage has a second width in the direction of the axis that is greater than the first width of the annular groove. The camshaft phaser also includes a valve spool which moves along the axis within said valve bore, the valve spool having a land which varies a flow area between the valve bore and the annular groove and between the valve bore and the passage.

公开(公告)号：US10082054B2

公开(公告)日：2018-09-25

申请号：US14936888

申请日：2015-11-10

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Karl J. Haltiner, Jr. ,  Thomas H. Fischer

IPC: F01L1/344 ,  F01L1/047 ,  F16K15/14

CPC classification number: F01L1/3442 ,  F01L1/047 ,  F01L2001/34423 ,  F01L2001/34426 ,  F01L2001/34433 ,  F16K15/14

Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool supply passage and a second spool supply passage which is diametrically opposed to the first spool recirculation passage. The first spool supply passage and the second spool supply passage each provide a path for pressurized oil to be supplied to the phasing volume from an oil source.

公开(公告)号：US09976450B2

公开(公告)日：2018-05-22

申请号：US14936912

申请日：2015-11-10

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Karl J. Haltiner, Jr.

IPC: F01L1/344 ,  F01L1/047 ,  F01L1/34

CPC classification number: F01L1/3442 ,  F01L1/047 ,  F01L1/34 ,  F01L1/34409 ,  F01L2001/34426 ,  F01L2001/34433 ,  F01L2001/34453 ,  F01L2001/34456

Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool recirculation passage and a second spool recirculation passage which is diametrically opposed to the first spool recirculation passage. The first spool recirculation passage and the second spool recirculation passage provide paths for oil to flow from the advance chamber or the retard chamber to the phasing volume depending on the position of the valve spool.

公开(公告)号：US09957853B2

公开(公告)日：2018-05-01

申请号：US15251743

申请日：2016-08-30

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Karl J. Haltiner, Jr.

IPC: F01L1/34 ,  F01L1/344

CPC classification number: F01L1/3442 ,  F01L2001/3443 ,  F01L2001/34433 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2250/02

Abstract: A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore extending along an axis. A valve sleeve is located coaxially within the bolt valve bore such that an annular clearance is provided radially therebetween. A valve spool is located coaxially within the valve sleeve such that the valve spool is moved coaxially between an advance position and a retard position. A compliant sealing ring radially between the bolt valve bore and the valve sleeve prevents fluid communication through the annular clearance axially between opposing axial sides of the sealing ring and isolates the valve sleeve from radial expansion of the camshaft phaser attachment bolt.