.~ Charge proportion varying (e.g., the fuel-air ratio is varied)
DEFINITION
Classification: 123/344
Charge proportion varying (e.g., the fuel-air ratio is varied):
(under subclass 319) Subject matter including means for regulating the speed of an engine by automatically varying the relative amount of air and fuel forming the combustible charge.
(1) Note. The volume of each successive charge remains constant and the pressure thereof being at or substantially at atmospheric pressure at the beginning of the compression stroke. The proportion of air and fuel may be varied by (a) controlling the flow of both air and fuel, (b) controlling the flow of one constituent, leaving the other uncontrolled, or (c) supplying variable and regulated quantities of an air-fuel mixture to the working cylinder along with an additional amount of fluid as is necessary to fill the cylinder at atmospheric pressure.
