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:
Sep. 12, 2017
Filed:
Dec. 17, 2012
Applicant:
Doosan Infracore Co., Ltd., Incheon, KR;
Inventors:
Assignee:
Doosan Infracore Co., Ltd., Incheon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 1/20 (2006.01); F16J 10/02 (2006.01); F16J 10/04 (2006.01); F02F 1/00 (2006.01);
U.S. Cl.
CPC ...
F16J 10/02 (2013.01); F02F 1/004 (2013.01); F02F 1/20 (2013.01); F16J 10/04 (2013.01);
Abstract
There is provided a cylinder device having optimal arrangement of fine textures and optimal surface roughness capable of reducing wear of a cylinder bore side and a piston ring by processing fine textures in an optimal selection region of the cylinder bore side to improve lubrication characteristics between the piston ring and the cylinder bore side while reducing engine oil consumption by processing surface roughness of the cylinder bore side to an optimal status.