Oscillating-motor camshaft adjuster having a hydraulic valve

US9341090B2 · kind B2 · utility

Assignee

• Hilite Germany GmbH · DE

Inventors

• Bernd Last · Reutlingen, DE
• Gordon Neudörfer · Ulm, DE
• Udo Diederichs · Ratingen, DE
• Matthew Bradfield · Whitehall, US
• Melissa Koenig · Howell, US
• Kenneth J. Parker · Lake Orion, US

Key dates

• Filing date: Feb 6, 2014
• Grant date: May 17, 2016
• Expiry date: Feb 6, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2001/34426
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.