US1393426A

US1393426A - Carbureter

Info

Publication number: US1393426A
Application number: US411588A
Authority: US
Inventors: Campbell Leslie Stuart
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-09-20
Filing date: 1920-09-20
Publication date: 1921-10-11
Anticipated expiration: 1938-10-11

Description

L. S. CAMPBELL.

CARBURETER.

APPLICATION FILED sEPT.2o, 1920.

bummed @et M, 19ml.,

won-1 auf Lastra s'rur ernaar., or marcaron', andan.

tpecication of Letters Patent.

Patented met.. tt., lwll.

application lect eptember 30, 1920. aerial tto. tutta.

(@ETED lDlElll. THE PRWISIUNS F THE ACT 0F MARCH t,

T o all 'whom it may concern: y

lle it known that ll, LESLIE STUART CAMP- lmaLL, a subject of the King of Great Britain and llreland, residing at Brighton, in the county of bussex, England, have invented a new'and useful Improvement in Carbureters for Internal-Combustion Engines, (for which ll have filed application in England June 11, 1919, Patent #154951 of which the following is a specification.

rllliis invention relates to carbureters for internal combustion engines of the type in which the liquid fuel is allowed to How over a surface of absorbent material over which l5 the air induced by the suction of the engine passes and it has for its objectto obtain a .'rnaximurn efficiency of the engine Wlth a miniifnum consumption of fuel. A further object of this invention is to obtain simplicity of construction and therefore economy in maufacture. Another object is to avoid the presence of water in the fuel from interferin'g with the action of the carbureter. A still further object of this invention is to obtain a positive control of the supply of fuel and therefore of the speed of the engine and consequently of the speed of the vehicle driven bv same.

ll attain these ends by the construction at) shown in the accompanying drawings in which Figure 1 is a view in sectional elevation of a convenient embodiment of this invention. lFi 2 is a sectional view thereof on line at o e ig. l and Eigs. 3 and 4L are views in elevation and plan partly in section showing an alternative construction.

'throughout the views similar parts are t@ marked with like letters of reference.

Within a cylindrical chamber a is a cylindrical frame b-of a smaller diameter than the chamber a-on the exterior of which is a jacket vof suitable absorbent material b. t5 @n the upper part c of this frame is a distributing chamber d in the vertical wall of which are a series of minute'holes or ports through which the fuel in said auxiliary chamber passes on to the absorbent jacket b.

Leading into the distributing chamber al is av pipe f which is connected to a fitment k attached to the side of the chamber a. Un this itment is a pipe h' leading to the fuel N21, lll ETAT. Il., limb.)

supply and insaid fitment is a needle valve p1. for controlhng the supply of fuel passing lnto the distributing chamber al. A second valve /.2 Inay be fitted to the pipe It to limit the maxlmum supply of the liquid fuel. lin the bottom of the chamber a are one or more orlfices n for the admission of air to said chamber. Un the interior face of the chamber a are arranged one or more baffle plates p arranged so as to direct the How of air over the surface of the jacket b the pre ferred form being that of a helix as ahown 1n E ig. 1.

l[ n the upper part a of the chamberI a which 1s of a reduced diameter is located the main throttle valve rlhe needle valve 'm 1s coupled with said throttle valve by means of a crank pin m carried by the valve m which engages a slot in the controlling lever m2. of said throttle valve.

The action of the carbureter is as follows z-The liquid fuel flows by gravity into the distributing chamber d and out of said chamber through the small holes or ports e on to the absorbent jacket 7). in through the inlets n by the suction of the engine picks up the liquid fuel from the absorbent jacket and forms the explosive mixture.

v lf desired the carbureter may be provided 1n the upper part of the chamber a with auxillary air inlets n controlled by sliding shields n3 carried by a ring a2 mounted to slide on the upper part a of the chamber a said ring being coupled vto the throttle valve by means of an arm n* mounted on the spindle of said valve and engaging a slotted recess a5 formed ini the ring n2, as shown in Figs. 3 and A.

The frame may be made of any suitable construction and form, that shown, which consists of a cylinder, being a suitable and convenient one.

What ll claim is 1. A carbureter for internal combustion engines com risin a chamber the upper part of whic is a apted to be put in oommunication with the induction pipe of the engine, an air inlet in the bottom of said chamber, a frame located within said chamber, a distributing chamber mounted on the top of said frame, an absorbent jacket on the exterior of said frame the exterior diamlib fill

The air drawn Y lltltll engines comprising achamber the upper part of which is adapted to be put in communication with the induction plpe of the engine, an air inlet in said lower art of said chamber, a frame located within said chamber, a distributing chamber mounted on the top of said frame, an absorbent jacket on the exterior of said frame the exterior diameter ofsaid jacketed frame being less than the in ternal diameter of the main chamber, baille lates on the inner Wall of the main chamber, a series of small holes or ports in the vertical wall of said distributing chamber,

a port in said distributing chamber which is in communication with the liquid-fuel supply, and means for controlling the amount of li uid fuel passing into said chamber.

3. (in a carbureter for internal combustion engines the` combination of a chamber the upper part of which is adapted to be put in communication with the induction pipe of the engine, air inlets in the lower part of said chamber, a frame located within said-chamber, a distributing chamber mounted .on the top of said fra-me, an absorbent jacket on the exterior of said frame and said distributing chamber auxiliary air inlets in the upper part of the main chamber above the distributing chamber, means for controlling said auxiliary inlets, means of communication between the distributing chamber and the absorbent jacket, a port in said distributing chamber which is in communication with the liquid fuel supply, and means for regulating the amount of liquid fuel passing into said chamber.

4. In a carbureter for internal combustion engines the combination of a chamber the upper part of which is adapted to be put in communication with the induction p1 of the engine, one or more aix` inlets in t e lower part of said chamber, a frame located within said chamber, a distributing chamber located on the top of said frame, a plurality of small holes or ports in the Vertical wall of said distributing chamber, an absorbent jacket on the exterior of said frame, helically arranged baiile plates on the inner wall of the main chamber, auxiliary air inlets in the main chamber above the distributing chamber, means for controllin said auxiliary inlets, a port in the distriguting chamber which is in communication with the liquid fuel supply, and a valve for varying the area of said port.

5. In a carbureter for internal combustion engines, the combination of a cylindrical chamber the upper part of which is adapted to be put in communication with the induction pipe of the engine, an air inlet in the lower part of said chamber, a frame centrally located within said chamber, an absorbent jacket mounted over said frame, a cylindrical distributing chamber located on the top of said frame said frame and said distributing chamber being of a smaller diameter than the-main chamber, bale lates in the main chamber located between the inner face of the wall of said chamber and the outer face of the absorbent jacket, ports in said distributing chamber communicating with said jacket, a port in said chamber which-is in communication with the liquid fuel supply, and .means for re' lating the amount of liquid fuel passing t rough said port.

LESLIE STUART CAMPBELL.