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. 03, 2002
Filed:
Nov. 20, 2001
Kyoung-Pyo Ha, Suwon, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A liner mounting structure for measuring piston friction in which a liner is mounted in a cylinder block of an internal combustion engine and is cylindrically shaped to define a space in which a piston undergoes rectilinear motion. A protrusion is formed around an outer circumference of the liner at an upper portion of the liner. A combustion pressure passageway formed in the liner starting from an upper surface of the liner and extending downwardly to a bottom surface of the protrusion. An indentation is formed in the cylinder block corresponding to a position of the protrusion of the liner. An upper O-ring groove formed in the cylinder block above the indentation. A lower O-ring groove is formed in the cylinder block below the indentation, and a center O-ring groove is formed in the cylinder block within the indentation. An upper O-ring is mounted in the upper O-ring groove, a lower O-ring mounted in the lower O-ring groove, and a center O-ring is mounted in the center O-ring groove.