Invention Application
- Patent Title: HYDRAULIC CAMSHAFT PHASER AND VALVE FOR OPERATION THEREOF
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Application No.: US15210117Application Date: 2016-07-14
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Publication No.: US20180016950A1Publication Date: 2018-01-18
- Inventor: Karl J. Haltiner, JR.
- Applicant: DELPHI TECHNOLOGIES, INC.
- Main IPC: F01L1/344
- IPC: F01L1/344 ; F01L1/02

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.
Public/Granted literature
- US09982576B2 Hydraulic camshaft phaser and valve for operation thereof Public/Granted day:2018-05-29
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