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. 10, 2012
Filed:
Jul. 23, 2009
Takayuki Saito, Hitachinaka, JP;
Takayuki Yogo, Hitachinaka, JP;
Shinya Igarashi, Naka, JP;
Hiromu Kikawa, Hitachinaka, JP;
Takayuki Saito, Hitachinaka, JP;
Takayuki Yogo, Hitachinaka, JP;
Shinya Igarashi, Naka, JP;
Hiromu Kikawa, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
An arrangement of a mass intake air flow measurement device suitable for integrating a humidity sensing device as well as a temperature sensing device and a pressure sensing device is provided. A second bypass passage bypassing a bypass passage is formed and a humidity sensing device is mounted in the second bypass passage. A second bypass passage inlet and a second bypass passage outlet formed in a wall surface of the bypass passage are opened parallel to the direction of flow of air flowing in the bypass passage.