Control device

US5232197A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Harald Kalippke
• Manfred Franz · Ditzingen, DE
• Erhard Renninger · Markgröningen, DE
• Johannes Meiwes · Markgröningen, DE
• Albert Gerhard · Tamm, DE
• Uwe Hammer · Hemmingen, DE

Key dates

• Filing date: Jul 21, 1992
• Grant date: Aug 3, 1993
• Expiry date: Jul 21, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2003/067
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A control device for the control of an opening cross-sectional area of a flow duct, in particular for internal combustion engines, comprising three sub-assemblies, an actuator housing with flow channel and setting window, a rotor with a rotary valve for controlling the window opening, and a drive housing with stator and stator winding. For setting a required air gap between the rotary valve and the setting window, a control section of the rotary valve covering the setting window is designed as a cone envelope segment, and is inclined at an acute angle to the rotor axis. The window lying in a cone envelope plane is located at the same angle of inclination. By means of a spacing disk between the rotor, with the rotary valve affixed thereon, and the actuator housing, the air gap is set and fixed as required.