Starting device for internal combustion engines and method therefor
AssigneeDolmar GmbH
InventorSascha Kolossow
Life of this patent
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Abstract
The present invention relates to a method for starting an internal combustion engine using a starting device, an ignition spark from a spark plug of an internal combustion engine being controllable by the starting device as a function of the speed of the crankshaft, a progressive rise of the advance of the ignition angle before top dead center already being performed as a function of the crankshaft speed at low speeds below the idle speed, which is followed at rising crankshaft speed by a sudden drop of the advance of the ignition angle to a plateau of the idle speed range.
Claims22
A method for starting an internal combustion engine (300) using a starting device, an ignition spark of a spark plug (306), being controllable or producible as a function of the speed of the crankshaft by the starting device (310), characterized in that at speeds below the idle speed, a progressive rise (11) of the advance of the ignition angle before the top dead center of the crankshaft (302) of the internal combustion engine (300) occurs as a function of the crankshaft speed, which is followed at rising crankshaft speed by a sudden drop (21) of the advance of the ignition angle to a plateau (102) of the idle speed range, and upon further rising crankshaft speed, a sudden rise (41) of the advance of the ignition angle occurs in a work range (50) of the internal combustion engine, followed by a rise (42) implemented with rising speed provided that the ignition angle is advanced before top dead center of the crankshaft (302) at all speeds after starting the engine to prevent back kick.
A starting device (310) for starting an internal combustion engine (300) having a device for driving the crankshaft (302) of the internal combustion engine (300), a speed sensor (308), and at least one spark plug (306), characterized in that an ignition spark from the spark plug (306) is controllable or producible by the starting device (310) as a function of the speed of the crankshaft (302) as determined by the speed sensor (308), a progressive rise (11) of the advance of the ignition angle before the top dead center of the crankshaft (302) of the internal combustion engine (300) already occurring at speeds below the idle speed as a function of the crankshaft speed, which is followed upon rising crankshaft speed by a sudden drop (21) of the advance of the ignition angle to a plateau (102) of the idle speed range, and as the crankshaft speed rises further, the advance of the ignition angle suddenly rises (41) into a work range (50) of the internal combustion engine, followed by a rise (42) implemented with increasing speed provided that the ignition angle is advanced before top dead center of the crankshaft (302) at all speeds after starting the engine to prevent back kick.
Dependencies are inferred from the claim text.