The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2002
Filed:
Jul. 13, 2000
Peter Welteroth, Eitorf, DE;
Gerd Bornmann, Hochheim, DE;
Wolfgang Sauerschell, Oberursel, DE;
Nouhad Bachnak, Frankfurt, DE;
Mannesmann VDO AG, Frankfurt, DE;
Abstract
In a throttle body with a Torquer drive, the rotor of the drive motor is seated directly on the shaft ( ) of the throttle butterfly ( ). In order to achieve permanent axial retention of the shaft in combination with simplicity of assembly, the rotor is press-fitted on to the shaft ( ), a retaining washer ( ) is provided between the throttle butterfly ( ) and the rotor, the retaining washer being fixed axially on the shaft ( ) or on a throttle housing ( ) and engaging with a defined axial play in a gap ( ) on the other element, and the two axial, housing-side contact surfaces of the retaining washer ( ) being formed by a fastening plate ( ) screwed to the housing ( ) and by a stop ( ) provided on the housing ( ). The narrow axial retention device allows rotor-side arrangement for simpler assembly in combination with a short and rigid throttle-butterfly shaft ( ).