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. 01, 2015
Filed:
Jun. 06, 2014
General Electric Company, Schenectady, NY (US);
Richard John Donahue, West Bend, WI (US);
General Electric Company, Schenectady, NY (US);
Abstract
A power cylinder system for a reciprocating engine includes a cylinder with an inner annular wall and defining a cavity having a bore diameter. The system includes a piston assembly having a piston disposed within the cylinder and configured to move in a reciprocating manner. The piston and the inner annular wall of the cylinder are separated by a diametral cold clearance that is less than approximately 0.5 percent of the bore diameter. The piston assembly includes a top-most groove extending circumferentially about the piston beneath a top land of the piston and a ring disposed within the top-most groove. One or more channels are formed in the top land or an upper surface of the ring and are configured to enable combustion gases to flow from the cavity to a space between an inner surface of the top-most groove and an inner face of the ring.