Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

F02M41/00Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor

F02M41/02the distributor being spaced from pumping elements F02M41/04the distributor reciprocating F02M41/042by means of mechanical drive F02M41/045by means of hydraulic or pneumatic drive F02M41/047by means of electric drive F02M41/06the distributor rotating F02M41/063the distributor and rotary valve controlling fuel passages to pumping elements being combined F02M41/066Arrangements for adjusting the rotary valve-distributor F02M41/08the distributor and pumping elements being combined F02M41/10pump pistons acting as the distributor F02M41/12the pistons rotating to act as the distributor F02M41/121with piston arranged axially to driving shaft F02M41/122with piston arranged radially to driving shaft F02M41/123characterised by means for varying fuel delivery or injection timing F02M41/124Throttling of fuel passages to or from the pumping chamber F02M41/125Variably-timed valves controlling fuel passages F02M41/126valves being mechanically or electrically adjustable sleeves slidably mounted on rotary piston F02M41/127valves being fluid-actuated slide-valves F02M41/128Varying injection timing by angular adjustment of the face-cam or the rollers support F02M41/14rotary distributor supporting pump pistons F02M41/1405pistons being disposed radially with respect to rotation axis F02M41/1411characterised by means for varying fuel delivery or injection timing F02M41/1416Devices specially adapted for angular adjustment of annular cam F02M41/1422Injection being effected by means of a free-piston displaced by the pressure of fuel F02M41/1427Arrangements for metering fuel admitted to pumping chambers F02M41/1433pistons being parallel to rotation axis F02M41/16characterised by the distributor being fed from a constant pressure source