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. 26, 2019
Filed:
Nov. 09, 2018
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Myungsik Choi, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
A variable compression ratio apparatus is provided and is installed within an engine rotating a crankshaft upon receiving combustion power of a mixture from a piston and changes a mixture compression ratio based on an engine driving condition. The apparatus includes a connecting rod at which a small end forming a circular aperture to be rotatably connected with a piston pin moving together with the piston, a larger end rotatably connected with a crankpin eccentrically arranged with respect to the crankshaft, and an acting oil passage formed to supply hydraulic pressure from the larger end to the small end, are formed. An eccentric cam is concentrically arranged and rotatably disposed in the small end aperture and the piston pin is eccentrically inserted thereinto and is rotatably connected therewith. A latching pin selectively latches the small end with the cam by supply of hydraulic pressure through the acting oil passage.