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:
Dec. 19, 1989
Filed:
Dec. 09, 1988
Heinz Gneiss, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An air flow rate meter having a support body that protrudes into the air intake tube of an internal combustion engine and has an aperture in which a hot wire is deployed over support points. A support body protrudes vertically into a horizontally extending intake tube with two apertures, one above the other, and includes both a first hot wire in the first aperture and a second hot wire in the second aperture, each in the form of a V, with the required tension. Each hot wire is secured with each of its ends to a respective support point and is guided with a loop over a middle support point. It is particularly advantageous to dispose the ends of each hot wire with the support points on the upper end face of each aperture, because in that case the heat buildup ensuing during a burn-off procedure enables particularly good burnoff of the deposits on the ends of each hot wire and any solder at the intersections of the individual loops is protected from overheating which would destroy the solder. The air flow rate meter is suitable in principle for measuring any flowing medium.