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:
Jan. 25, 1983
Filed:
Nov. 21, 1980
Applicant:
Inventors:
Tadahiro Yamamoto, Yokosuka, JP;
Kenji Masaki, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73118 ; 123478 ;
Abstract
A Karman type air flow sensor element is disposed within a duct slidably mounted between members defining an annular space. The annular space causes the intake air to increase its velocity as it approaches the inner periphery of the annular space thus creating a pressure differential zone. By moving the duct so that the inlet and outlet are exposed to different high and low pressures respectively the pressure differential across said the inlet and outlet of the duct can be controlled to vary the fraction of the total intake air inducted therethrough.