ES264077U - Gasoline pump mechanical operation, perfected. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Petrol pump of mechanical operation, perfected, in particular a membrane pump used to provide a regular supply of fuel to the carburettor of a motor vehicle, essentially characterized in that the aspiration and impulsion chambers are constituted in a one-piece assembly, based on to two coaxially interconnected housings, both of generally cylindrical or tubular general development, with one of their closed bases joined by welding, which are also linked by welding the fluid conduits, which adopt respectively horizontal and vertical sense, being the first of very lower span, housed in the second disposed that transversely to its bottom, having the mouth slightly flared, in whose edge profile is attached, prior provision of a seal or O-ring, a third piece in the form of an inverted cup, stained by a large flight, with fon two levels, having in each of said basal planes an orifice that determines the seat of the respective valves, so that this piece limits and defines in relation to the two previous ones, the suction and impulse enclosures that are juxtaposed, in parallelism, the first containing the filtering sieve and sealed together by means of said toric seal, which is pinched between the edge of the suction cavity and the dihedral of the cylindrical protruding configuration, introduced in said cavity, of the third piece, leaving the flange that limits the latter, supporting in superposition in a stepped widening of the housing of greater amplitude, which is topped by a cylindrical flange of great development, receiving in plug connection to a semibody defining the crankcase of the pump, the piston-membrane being secured, peripherally, in the flat profile of correspondence between both semipartes and the walloon quotation da, obtaining the unification of both and the termination of the pump without the cooperation of screw-type fixing parts or the like by beading by flanging the cylindrical flange of the larger housing on the protruding neck of the lower crankcase. (Machine-translation by Google Translate, not legally binding)