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:
Feb. 20, 2018
Filed:
Jan. 29, 2016
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
Katsuhiko Makino, Aichi-ken, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, Aichi-Ken, JP;
Abstract
A fuel vapor recovery apparatus includes an adsorbent canister capable of capturing fuel vapor, a vapor passage connecting the adsorbent canister to a fuel tank, an atmospheric air passage communicating the adsorbent canister with the atmosphere, and a purge passage coupling the adsorbent canister to an intake pipe of an internal combustion engine. In addition, the apparatus includes a purge pump configured to generate a gas flow from the adsorbent canister to the intake pipe through the purge passage, and a flow control valve provided at the purge passage and configured to regulate the gas flow through the purge passage. Further, the apparatus includes a pressure regulator configured to make an absolute value of pressure at an outlet side of the purge pump smaller than an absolute value of pressure at an inlet side of the purge pump while the purge pump is driven.