Irvin Bornstein - Tallahassee FL Thomas B. Middlebrooks - Tallahassee FL Scott M. Eddy - Tallahassee FL Charles E. Benedict - Tallahassee FL
Assignee:
Bornstein Motor Company, Inc. - Tallahassee FL
International Classification:
F01L 130
US Classification:
123 9026
Abstract:
A spring assembly for positively urging inlet and exhaust valves of a internal combustion engine into both open and closed positioned wherein the spring assembly includes an engaging member which is biased alternatively in both directions relative to the elongated axis of the stem of each valve by a spring member which is oriented generally perpendicular with respect to the valve stem and which engaging member is engagable within a groove or detent formed in the valve stem.
Irvin Bornstein - Tallahassee FL Thomas B. Middlebrooks - Tallahassee FL Scott M. Eddy - Tallahassee FL Charles E. Benedict - Tallahassee FL
Assignee:
Bornstein Motor Company, Inc. - Tallahassee FL
International Classification:
F01L 104
US Classification:
123 9017
Abstract:
A mechanism for controlling the duration of the opening of the intake valve of an internal combustion engine which includes a split cam having a first lobe which is fixed to a primary cam shaft that is drivingly connected to the engine's crankshaft and a second lobe which is freely mounted to the primary cam shaft and which is driven by gears of an auxiliary cam shaft which is axially shiftable, or a segment thereof shiftable, to rotate the second cam lobe relative to the first lobe of the split cam to thereby change the angular relationship between the first and second lobes to advance or retard the closing of the intake valve.