Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element

US7946266B2 · kind B2 · utility

Assignee

• Hydraulik-Ring GmbH · DE

Inventors

• Andreas Knecht · Herrenberg, DE
• Dirk Pohl · Kirchentellinsfurt, DE
• Jens Bartzsch · Rottenburg am Neckar, DE
• Gordon Neudoerfer · Aschersleben, DE

Key dates

• Filing date: Sep 15, 2008
• Grant date: May 24, 2011
• Expiry date: Jun 17, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B2211/88
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a valve and suitable hydraulic circuit, especially for camshaft adjusters of an internal combustion engine. The hydraulic circuit comprises a number of check valves or two-way valves operating as check valves, in order to provide a rapid camshaft adjuster with a high regulating quality.