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:
Mar. 08, 2022
Filed:
May. 29, 2019
Aisan Kogyo Kabushiki Kaisha, Obu, JP;
Yuki Fujita, Gifu, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu, JP;
Abstract
In this evaporated fuel treatment apparatus, there are set a purge condition that is a condition for performing purge control, a first pre purge condition that is met before the purge condition is met, and a second pre purge condition that is met between the purge condition and the first pre purge condition. A purge pump is driven at an idling speed lower than a rated speed to execute idle rotation when the first pre purge condition is met. The purge pump is driven at the rated speed to execute rated rotation when the second pre purge condition is met. A purge valve is opened while the rated rotation is performed when the purge condition is met.