F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
F23N5/188—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using mechanical means
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D7/00—Control of flow
G05D7/01—Control of flow without auxiliary power
G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
G05D7/014—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path using sliding elements