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:
Dec. 22, 2020
Filed:
Dec. 02, 2019
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Young-Kyu Oh, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
An active purge system includes a canister in which a vaporized gas produced in an fuel tank is collected and a purge line that connects the canister to an intake pipe. A purge pump is mounted in the purge line, a purge valve is mounted in the purge line to be positioned between the purge pump and the intake pipe, and a cylinder is connected to the intake pipe. A valve controller changes the operation timing, operation maintenance time, and the operation degree of an intake valve and an exhaust valve disposed at the upper portion of the cylinder. A compression ratio variation device is mounted on a connecting rod and a crankshaft that are connected to a piston to change the top dead center or the bottom dead center of the piston reciprocating in the cylinder.