Patents Assigned to Evans Engineering Company, Inc.
  • Piston assembly with piston ring support and sealing member
    Publication number: 20040134457
    Abstract: A piston ring assembly includes a piston, and at least one piston ring positioned within a piston groove. Stabilization and support of the piston is provided by a support arrangement, including at least one support member positioned radially between a back wall of the ring groove and the piston ring. The support arrangement desirably acts to accommodate transverse loads exerted upon the piston during normal operation, and can optionally be configured for enhanced sealing of gasses.
    Type: Application
    Filed: October 17, 2003
    Publication date: July 15, 2004
    Applicant: Evans Engineering Company, Inc.
    Inventor: John W. Evans
  • Piston assembly with piston ring support and sealing member
    Patent number: 6199868
    Abstract: A piston ring assembly includes a piston, and at least one piston ring positioned within a piston groove. Stabilization and support of the piston is provided by a support arrangement, including at least one support member positioned radially between a back wall of the ring groove and the piston ring. The support arrangement desirably acts to accommodate transverse loads exerted upon the piston during normal operation, and can optionally be configured for enhanced sealing of gasses. Improved engine output and efficiency are achieved.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: March 13, 2001
    Assignee: Evans Engineering Company, Inc.
    Inventor: John W. Evans