.~ Charge volume varying (e.g., total amount of mixture fed to engine is varied; relative amounts of air and fuel are fixed) {3}
405
.~.~ By engine operated valve
DEFINITION
Classification: 123/405
By engine operated valve:
(under subclass 402) Subject matter in which said device includes an engine driven valve and acts either to open the valve to a variable degree during the entire engine intake stroke, or open the valve during variable portions of the intake stroke.
(1) Note. The regulator may include a valve to control the flow of mixture or valves to individually control the flow of the mixture constituents.
