Browse Publications Technical Papers 2005-01-0764
2005-04-11

A Camshaft Torque Actuated Vane Style VCT Phaser 2005-01-0764

BorgWarner has developed a continuously variable vane style VCT camshaft phaser that, differing from the oil pressure actuated phasers in production, utilizes camshaft torque energy, not oil pump flow, to actuate. This VCT phaser has several distinct advantages, low oil flow requirements and fast response rates even at low RPM. The low oil flow requirement, allows this Cam Phaser to easily adapt to existing engine platforms without major engine modifications or increases in oil pump size. For new engine designs a smaller oil pump can be selected and thereby improve overall engine efficiency. Since the phaser responds to camshaft torque energy and actuates independent of oil pressure, fast response rates are available from idle on up through the engine operating range, allowing the engine calibrator to adopt a more aggressive approach to camshaft timing. Low oil flow requirements, fast response rates at all RPM and minimal engine modifications are all advantages of this new VCT cam Phaser.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Cam Phaser Actuation Rate Performance Impact on Fuel Consumption and NOx Emissions Over the FTP-75 Drive Cycle

2003-01-0023

View Details

TECHNICAL PAPER

Development of a Valve Timing Control System

890680

View Details

TECHNICAL PAPER

Electrical Variable Cam Phase Shifter for Internal Combustion Engine

2008-01-1351

View Details

X