Camshaft phaser with position control valve

Patent metadata

Field	Value
Publication number	US-9689286-B2
Application number	US-201414554385-A
Country	US
Kind code	B2
Filing date	Nov 26, 2014
Priority date	Nov 26, 2014
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A camshaft phaser includes an input member connectable to the crankshaft of the internal combustion engine; an output member connectable to the camshaft of the internal combustion engine and defining an advance chamber and a retard chamber with the input member; a valve spool coaxially disposed within the output member such that the valve spool is rotatable relative to the output member and the input member, the valve spool defining a supply chamber and a vent chamber with the output member; and an actuator which rotates the valve spool in order to change the position of the output member relative to the input member by supplying pressurized oil from the supply chamber to one of the advance chamber and the retard chamber and venting oil to the vent chamber from the other of the supply chamber and the advance chamber.

First claim

I claim:

1. A camshaft phaser for use with an internal combustion engine for controllably varying the phase relationship between a crankshaft and a camshaft in said internal combustion engine, said camshaft phaser comprising:
an input member connectable to said crankshaft of said internal combustion engine to provide a fixed ratio of rotation between said input member and said crankshaft;
an output member connectable to said camshaft of said internal combustion engine and defini…

Assignees

• Delphi Tech Inc

Inventors

• Haltiner Jr Karl J

Classifications

• F01L2001/34433

  Mechanical Engineering · mapped topic

• F01L1/3442 Primary

  Mechanical Engineering · mapped topic

• F01L2001/34426

  Mechanical Engineering · mapped topic

• F01L2001/34423

  Mechanical Engineering · mapped topic

• F04C2/3448

  Mechanical Engineering · mapped topic