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:
Apr. 25, 2006
Filed:
Feb. 27, 2002
Keiichi Nakada, Hitachinaka, JP;
Izumi Watanabe, Hitachinaka, JP;
Junichi Horie, Hitachinaka, JP;
Kei Ueyama, Hitachinaka, JP;
Hiromu Kikawa, Hitachinaka, JP;
Masamichi Yamada, Hitachinaka, JP;
Keiichi Nakada, Hitachinaka, JP;
Izumi Watanabe, Hitachinaka, JP;
Junichi Horie, Hitachinaka, JP;
Kei Ueyama, Hitachinaka, JP;
Hiromu Kikawa, Hitachinaka, JP;
Masamichi Yamada, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Car Engineering Co., Ltd., Hitachinaka, JP;
Abstract
There is provided a flow rate measuring device which comprises a means for introducing a backward flow of the main passage into the sub-passage through the outlet of the sub-passage of the flow rate measuring device is provided near the outlet of the sub-passage, in order to keep the flow rate measuring element from being destroyed under the presence of dust and water in an intake manifold and which has high reliability for a long period of use and an excellent pulsation characteristic.