US1790854A

US1790854A - Charge mixing device

Info

Publication number: US1790854A
Authority: US
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03

Description

Feb; 3, 1931. A.'DEFRANCE ET AL 0,

CHARGE MIXING DEVICE Filed Oct. e, 1926 Y 2 \Hi 11 u Pierre l ersil/e At omsy Patented Fees; 1931 a. 1390,854

UNITED STATE ,7 PATENT ABEL nErnANon rinnnn vnnsinnn, or Piers, mama? I I v cnAnen-lurxme'nnvrcn i i g i I Application filed October 9, 1926, Serial NoL 1 40,6 55,iand in France .i neic', 1926. Y The invention relates to charge mixing de- 'vention each aperture in theplates' may be vices for internal combustion engines adapt provided with a substantially ovoid element t ed to consume a mixture of air andhydrolongitudinally movable within the'aperture carbon fuel and more particularly heavy fuel. 1n question so that all of the apertures may 5 The invention'h'as for its ob'ect to rovide be artl closed when the en ine iso eratin 55 l P P y t: g P a a device of this character adapted-to be disunderlight loadconditions. 1 posed between the engine and the carburettor The invention will now be described by operatingin conjunction therewith, and to Way of example with'reference to-the accom-' finish the mixing of the combustible mixture panying diagrammatic drawings'inwhich 10 supplied by the carburettor so as to ensure Figures land? are longitudinal and trans- 60 perfect -carburation"while at the same time verse sectional views respectivelyof one, 'emrealizing a substantial economy in fuel. bodiment'of the invention, Fig. 3 being 'a More specifically the invention relates to transverse sectionalview of a modifiedconapparatus of the kind comprising aseries of stru'ctional form-cf theinvention. Y 5 p i perforated plates heated in a suitable man-. Refer-ringnowto Figures 1- and 3, it will 65 ner, and which the combustible mixture supbe observed that theconduit 1 leading from plied by the carburettor has to traverse, the the carburettor (not shown) is provided with, mixture during its passage thus being suca throttle valve 2, the charge mixing and cessively compressed and expanded whereby atomizing device, which ismounted within in combination with the friction of the mizrthe induction conduit between said throttle V ture against the walls of the perforations a valve and the engine 3,'being secured tofthe perfectly homogeneous mixture is obtained. latter and'comprising a tubular metallic ele- According to the present invention the ment 4 adapted to be heated by direct con- 1 plates are each provided with a comparative duction from the engine casing. A suitable ly large numberof conical apertures for the arrangement'may also be provided for 'heat purpose of dividing the combustible mixture ing said; element 4 from the exhaust conduit traversing the device into a comparatively 0f the engine or from water supplied from large number of very small jets of mixture the cooling radiator of the-engine. VJithin so that all the particles of each jet of mixthe tubular element i a series of plates 5 ture are thoroughly heated the advantages are'niounted in intimate contact with the so of such a constructional form of device beelement l so that heat is conducted directly ing,.further that high temperatures for heatfrom the latterto the plates 5 which in the ing purposes may be avoided while permitembodiment illustrated are relatively thick ting the attainment of a sufficiently high and 'forthis purpose.

' uniform temperature throughout the A comparatively large number of "aper- 85 ture. tures 6 of conical shape are provided inthe Another advanta e of the inventionis that lates 5the lates born in contact with one 2 V l I by arranging a suitable number of the plates. another and the apertures G n communicain a series with the conical apertures in each tion with one another as illustrated in the 40 plate in line with the corresponding apertures 'draw1ng. The plates 5 may however be as in the other plates and with the narrow ends spaced apart frorn one another f desired. of the apertures turned towards the engine, The mixture'ls supplie'dby the carburettor the passage of burning mixture to the carassociatedwlth'thedevice'ln a "more or less burettor u on a back-fire takin lace is homo eneous state and-flows past the throttle a P 1 e; p g i prevented. I valve-2, when it is open, and. through the In addition to the regular air inlet or inlets series of apertures'ti, thereby being subjected of the carburettor an additional adj table successively to compression and expansion air inlet may be provided in the induction and also heated before'being finally drawn conduit on the carburettor side of the plates. into theengine l I '50 According to a further feature of the inv It is to be noted that, the narrow ends of plied by the carburettor, thus the perforations 6, being turned towards the engine 3, the passage ofthe burning mixture to the carburettor upon a back-fire taking place is substantially prevented.

In addition to the usual air intake or intakes of the carburettor, we provide an adjustable additional air intake, diagrammatically shown at 7, permitting the variation at will of the quantity of air, admitted to the mixture according to the tel'nperature and the hygrometric state ofthe'air and to the quality of the fuel employed. When the engine is hot, A and the external temperature favorable, a supplementary air admission is vefl'ected through intake '5, this additional air, upon its aassage through the apertures in the plates, mixing intimately with the first mixture suprealizing an economy in fuel. 7

In the embodiment shown in Fig. 3, rods 8 carrying substantially ovoid elements 9 are provided, these rods extending along the center lines of the apertures, and one element 9 being provided in each aperture.

The rods 8 are solidary joined, forexample by a plate 10, and connectedby a linked rodvll to any suitable controlling device. Said device may be realized, as shown in Fig. 3, by an operativefconnection with the throttle valve 2 of the carburetor in-such a manner that the elements 9 will partly obturate the apertures G when the engine is running under light load conditions. A safety device may be further provided for locking the rods 8 in aposition in which the elements 9 completely obturate the apertures 6 thereby preventing the operation of the engine and consequently thetheft of the automobile, for example, of which the engine forms the power unit. Said locking device may be realized as shown, Fig. 3, by a small plate 12 which slides in the body 4 and maintainsthe plate 10 in the position 10 The plate 12 isactuated by a bent lever 13 and a rod 14; said latter can be locked by any suitable bolt or padlocln Claims r '1'. A charge mixing device for internal combustion engines comprising a tubular metallic housing, a succession of superposed thick plates and in contact relation, a numthickness of each plate being arranged in line with the corresponding apertures in the other plates, the narrow ends of the apertures being turned towards the engine, rods extending through said apertures and so poplate having a plurality of conical apertures therein aligned with the apertures of the other plates and providing a plurality of 1 parallel passages of alternating reduced and enlarged cross section the narrow ends of all the apertures being turned towards the engme.

PIERRE VERSILLE. ABEL DEFRANCE.

ber of uniformly shaped conical apertures provided in the thickness of each plate being arranged in line with the corresponding apertures in the other plates with the narrow end of the aperture of one plate adjacent the wider end otthe aperture of the adjacent plate, the narrow ends of alltheapertures being turned towards the engine.

2. A charge mixing device for internal combustion en ines comprising a tubular metallic housing, a succession of superposed thick plates of a certain thickness and in contact relation, a number of uniformly shaped conical apertures provided in the arranged in contacting relation therein each 7