GEORGE A JAHN
Broker in Springfield, MA
License number
Massachusetts 52372
Issued Date
Jun 1, 1966
Expiration Date
May 5, 1999
Type
Broker
Address
Address
Springfield, MA 01119
Professional information
Waffle Cast Iron Cylinder Liner
US Patent:
6123052, Sep 26, 2000
Filed:
Aug 12, 1999
Appl. No.:
9/373009
Inventors:
George Jahn - Springfield MA
International Classification:
F02F 114, F02F 110, B21K 300
US Classification:
123 4179
Abstract:
A cast iron cylinder liner for use in an engine block. The liner is cast to have a number of longitudinal grooves and machined to have a number of intersecting annular grooves to create an inverted waffle-like pattern of ridges and grooves on the outer circumferential surface of the liner. This pattern significantly increases the surface area through which cooling of the liner occurs and, thus, increases the liner's cooling capacity by approximately 30 to 40 percent. In addition, the pattern of ridges and grooves acts as a locking mechanism whereby the liner will not move within the cylinder block.