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:
Nov. 21, 2006
Filed:
Aug. 23, 2004
Mitsuyuki Kobayashi, Gamagori, JP;
Hitoshi Amano, Okazaki, JP;
Seiji Kunihiro, Kariya, JP;
Masafumi Tsuruta, Handa, JP;
Mitsuyuki Kobayashi, Gamagori, JP;
Hitoshi Amano, Okazaki, JP;
Seiji Kunihiro, Kariya, JP;
Masafumi Tsuruta, Handa, JP;
Denso Corporation, , JP;
Abstract
A fuel vapor leakage check module has a canister port which is provided so that the port can be opened to the air and is connected to the interior of a fuel tank through a canister for absorbing fuel vapor produced in the fuel tank. A pump depressurizes or pressurizes the interior of the fuel tank through the canister port. A connecting passage which is coaxially provided in the canister port, is connected to the canister port. The connecting passage is depressurized or pressurized by the pump. A standard orifice is coaxially provided in the connecting passage and reduces the passage area of the connecting passage.