Throttle body assembly for an internal combustion engine

US7546828B2 · kind B2 · utility

Assignee

• PIERBURG GMBH · DE

Inventors

• Hans-Ulrich Kuhnel · Rheydt, DE
• Dieter Thönneβen · Viersen, DE
• Michael Sanders · Grand Rapids, US

Key dates

• Filing date: Sep 26, 2007
• Grant date: Jun 16, 2009
• Expiry date: Sep 26, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D9/107
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a throttle plate port whose pivot axis is disposed so as to be axially offset with respect to the throttle plate and whose radial peripheral surface is shaped, at least by sections, in the form of spherical sectors, where in the position which closes the bore the peripheral surface of the throttle plate abuts, in the form of a line, the seat face of the housing. Through this type of eccentric disposition and simultaneous realization of the peripheral surface, the housing can be realized without undercuts and nonetheless precise dosing can be achieved in the case of small pivot angles.