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.

Date of Patent:
Oct. 22, 2019

Filed:

Nov. 29, 2017
Applicants:

Hyundai Motor Company, Seoul, KR;

Kia Motors Corporation, Seoul, KR;

Inventor:

Myungsik Choi, Seoul, KR;

Assignees:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 75/04 (2006.01);
U.S. Cl.
CPC ...
F02B 75/045 (2013.01);
Abstract

A variable compression ratio engine includes: a piston; a piston bar which is connected to the piston; a first connecting link which is connected to the piston bar through a first joint; a main body which is connected to the first connecting link through a second joint and includes a third joint and a fourth joint; a crank shaft which includes a fifth joint; a second connecting link which is connected to the main body through the fourth joint and connected to the crank shaft through the fifth joint to rotate the crank shaft; and a control link which is connected to the main body through the third joint and selectively changes a position of the third joint.


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