Throttle valve body

US6505643B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Lutz Scholten · Aachen, DE
• Peter Welteroth · Altenhimmel, DE
• Rolf Oppermann · Schwalbach, DE
• Armin Seeger · Bad Soden, DE

Key dates

• Filing date: Sep 6, 2001
• Grant date: Jan 14, 2003
• Expiry date: Sep 6, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/8242
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A throttle valve body (10, 100), especially for an internal combustion engine of a motor vehicle, having a tubular body (16, 116), which comprises at least an outer casing (16A, 116A), an inner casing (16B, 116B), a first end face (16C, 116C) and a second end face (16D, 116D), the inner casing (16B, 116B) of the tubular body (16, 116) forming a flow duct (20, 120) through which a gaseous medium (56, 156), especially air, can flow in a main flow direction (58, 158), a throttle plate (24, 124) swivel-mounted on a throttle shaft (22, 122) being arranged in the flow duct (20, 120), is to have an especially low weight and be manufactured at least partially from standard components. For this purpose the outer casing (16A, 116A) of the tubular housing (16, 116) is at least partially enclosed by a housing (12, 112) made of plastic (14, 114), at least one actuator (30, 130) for the throttle shaft (22, 122) being arranged in the housing (12, 112) and the tubular body (16, 116) being largely composed of metal (18, 118).