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:
Sep. 13, 1988
Filed:
Mar. 03, 1987
Applicant:
Inventors:
Wolfgang Porth, Frankfurt am Main, DE;
Wolfgang Weibler, Hofheim a. T., DE;
Assignee:
VDO Adolf Schindling AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
73204 ; 731182 ; 338 25 ;
Abstract
In an arrangement for measuring the velocity of flow of fluids, and, in particular, of the intake air of internal combustion engines, having an electrically heatable resistance layer which is applied in insulated manner on a support and is in thermal contact with the flowing fluid, the support consists of silicon. Between the support and the resistance layer an electrically insulating layer is applied. The resistance layer consists preferably of suitably doped polycrystalline silicon.