US974992A - Manifold for internal-combustion engines. - Google Patents

Description

. M. 3., RICE.

MANIFGLD FOR INTERNAL OOMBUSTION' ENGINES.

APPLICATION FILED MABJZB, 1910. 974,992.

Patented Nov. 8, 1910;

. INYENT R- VMEHHILL B. Rig-E.

internal combustion engine, and the main.

MERRILL B. RICE, DE LOS ANGELES.

CALIFORNIA.

MANIFOLD FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

' Patented Nov. 8, 1910.

Application-filed March 26,1910. Serial No. 551,786.

To all whom it may concern:

Be it known that/I, MERRILL -B. RICE; a

citizen ofthe United States, residing at Los Angeles, in the county of Los Angeles and State'of Qalif rnia, have invented a new and useful Maniffild for Internal-Combustion Engines, of which the following is a spoolfication.

This invention relatesto means for connecting the carbureted mixture from the carburetor to the cylinder of a multi-cylinder object of the invention is to provide means for this purpose which will distribute the mixture uniformly or equally to the several cylinders as regards quantity and quality of to the carburetor or other mixture hereinafter.

the mixture.

Another object of the invention s to pro.- vide a manifold of simple 'constructlon for the purpos "stated.

f Othero jects of the invention will appear The invention is illustrated in the accompanying drawings, and referring thereto, Eigure l is a rear elevation of the manifold. Fig. 2 is a vertical section on the line 1 -42 Fig. 1. Fig. 3 is a horizontal section on the line. m m, Fig. 2. k

The manifold preferably consists of a single integral cap and comprises an inlet portion 1, a distributing portion 2 extending directly upward from the inlet portion 1 and an elongated head 3 at the upper end of said distributing portion. said head being provided with a plurality of outlets 4 for communication with the respective cylinders of the engine.

The inlet portion l may be inte ral in form an'd'm-ay be provided witha ange 5 perforated as at G to enable it to be fastened pp y means. The. outlet gated head 3 are similarly provided with flanges 7 perforated at 8 for attachment to the respective cylinders. The elongated 3 is provided with a. downward extension or weld 9- having an elongated slot 11 at its bottom communicating with the upper end of the distributing means 2. The end walls of. said distributing means diverge upwardly from the inlet portion 1 so as to extend directly tothe outer end. of the elongated head 3so that the upper end of said distributing means is longitudinally coextensive with said head, said elongated put upon substantially portions 4 on the elonrent of mixture from the head being of suflicient length to include all of. the inlet openings at for the respective cylinders. The front and rear Walls 10, 10 of the distributing means 2 converge, as shown in Fig. ,2 so that the actual area or cross section of the distributing means is practically uniform throughout and is substantial-lvequal to the area of the inlet portion 1 and to the area of the outlet portion slot 11, said slot being of a length nearly equal to the length ofthe elongated head 3.

Themanifold is connected to the engine by means of connecting means 5 and 7 in the operation of the engine, suction is'produced successively at the outlets 4,'cau'sing the mixture to be' drawn in through the inlet portion 1 and" upwardly ing means 2 and slot 11 into theelongated head 8 from which it passes to the particular outlet 4 which at the time is in ooinmunica tion with a cylinder on a suction stroke. Owing to the transverse constriction and longitudinal elongation'of the slot 11, the mixture is drawn jthrough nearly the whole length of said slot on each suction stroke, irrespective of which outlet portion 4 is being drawn from, the mixture passing in a fanshaped current whose. longitudinal axis ex tends approximately in a direct line'" from the inlet portion to the particular outlet p0rtion 4 which is operativefor the time being. The several'outlet portions 4 are therefore the same footing as regards amount and quality of the mixture passing from supply means, and it'is therefore .possible, by proper adjustment of the carburetor, to maintain pro or working conditio'ns in each of the cylindgrs of the'engine.

The depending extension 9 of the elongated'and enlarged head 3 serves'not only to facilitate and equalize the passage of the mixture-from the elongated slot to that one of the outlet portions 4 which is in operation, but also serves to collect'any condensed gasolene and return it to the slot 11 where it is brought into contact with the issuing curdistributing means and is thereby carried forward-and again vaporized, or gas'ified, thereby What I claim is 1. A. manifold com rising an inlet tion, an elongated head rality of outlets distributed along its length. and having an elongated inlet slot, anda porthrough the distribut-' Y maintaining the uniform quality of the mixture.

provided with a pludistiiibutin}; iioi ztion eit tending directly upwznrd. from the inlet portion to said elont nted slot. 1

2. A manifold coin 'irising'an inlet portion, an elongated head provided With a plurality of outlet portions distributed along its id] 1 loiigitudint ljly li ngth and provided with an elongated slot, and :1v distributing portion extending upwardly from the inlet portion to said elongated slot, saiddistributing portion divergfipi've'rd so as to be longii'vith the elongated n and said distribut I a V i dly convergent in a beetles-sons to provide substan tially the some cross section throughout its le n EillL v :5. 5X. manifold comprising an inlet portion, an elongated head provided With a plumlity of outlet portions distributed along its li-uigtli, said elongated head having a (lepen lling GAiGDS-lOH formed with a longitudi- 'nnl slot tximmm ie'etin'g ivith the upper end In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 18th day of March, 1910. e z y MERRILL B.-R ICE. In presence of' v ARTHUR P. KNIGHT, FRANK GRnIiAM.

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