Electromagnetically actuated pumps
AssigneeHolec N.V.
InventorWillem Brinkman
Life of this patent
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Abstract
A pump and pump system employs electromagnetic actuation during discrete, periodic time periods, imparting rapid strokes covering small distances. Each stroke is delineated by stop members at least one of which is of wedge-like form and is controllably shifted to vary the stroke.
Claims3
An injector for giving off fuel to at least one atomizer of a combustion engine comprising at least one pump communicating with said atomizer and at least one control-member displaceable in dependence upon the pressure in the inlet branch pipe of the combustion engine for regulating the quantity of fuel to be atomized by the atomizer, characterized in that the natural frequency of the mass spring system of the control-member and of the elements coupled herewith is appreciably lower than the frequency of the pressure variations in the inlet branch pipe at a low engine speed due to the suction of air by the combustion cylinders.
Dependencies are inferred from the claim text.