Rotary idle-speed actuator

US5239961A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Klaus Neidhard · Wendelstein, DE
• Harald Kalippke
• Friedrich Wendel · Rutesheim, DE
• Erhard Renninger · Markgröningen, DE
• Wolfgang Staudenmaier · Waiblingen, DE
• Johannes Meiwes · Markgröningen, DE
• Albert Gerhard · Tamm, DE
• Dieter Dick · Rochlitz, DE
• Herbert Becker · Coburg, DE

Key dates

• Filing date: Feb 12, 1992
• Grant date: Aug 31, 1993
• Expiry date: Feb 12, 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 rotary idle-speed actuator for controlling a throttle cross-section in a line carrying combustion air for an internal combustion engine has an actuating motor with a stator and a rotor. The rotor is mounted on a shaft of a throttle member which more or less opens a control opening. The rotor has a cup-shaped form with a bottom and a cylinder-jacket-shaped wall. The stator has field windings and is arranged together with the field windings inside the rotor, and the stator is mounted only at its end which is opposite to the bottom of the rotor.