BorgWarner to launch new cam phaser technology in 2015

  • 05-Oct-2012 04:28 EDT
BORGWARNER-CAM-PHASERS-I4-ENGINES-1yHigh.jpg

For added calibration opportunities, BorgWarner's patented mid-position lock technology allows an increased range of camshaft positioning with a default stop at an intermediate position within the expanded range of travel.

To support rapidly increasing demand for smaller-displacement engines, BorgWarner is preparing to launch a new variable cam timing technology in global applications in 2015. Engineered specifically for downsized gasoline and diesel I4 engines, the modular design supports a variety of cam phasing technologies, including cam torque actuated (CTA) and torsional assist (TA) phasers with optional mid-position lock technology. Each phaser also features an integrated center bolt and spool valve for smaller package size and easier installation. Using the existing torsional energy in the valvetrain, CTA phasers actuate more quickly, use less engine oil, and operate under a wider range of engine speeds and temperatures than conventional VCT systems do, the company claims. TA phasers, which use torsional energy and standard engine oil pressure for actuation, offer a wide range of authority at 70° or more of crank rotation. The phasers can actuate rapidly, resulting in improved low-end engine performance in downsized, direct-injected boosted engines, according to BorgWarner. The technology is slated for launch on gasoline and diesel engines from a major global OEM, and will be supported by production at a new BorgWarner facility in Eastern Europe.

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