US1369250A - Cabbttbeteb - Google Patents

Description

E. M. LANDIS. CARBURETER. APPLICATION FILED JAN.6.1919.

1,369,250. Patented Feb. 22, 1921.

EDWARD M. LANDIS, OF TOLEDO, OHIO.

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Specification of ietters Patent.

Patented Feb. 22, 1921.

Application filed January 6, 1919. Serial No. 269,875.

To all whom it may concern.-

Be it known that I, EDWARD M. LANDIS, a citizen of the United States of America, residing at Toledo, Lucas county, Ohio, have invented new and useful Carburetors, of which the following is a specification.

This invention relates to fuel supply mechanisms.

This invention has utility when incorporated in apparatus for controlling the supply of a vaporizable liquid, especially fuel for internal combustion motors.

Referring to the drawings:

Figure 1 is a side elevation, with parts broken away, of an embodiment of the invention in a carbureterfor an internal combustion motor of a gasolene automobile; and

Fig. 2 is a fragmentary plan view of the fuel delivery pad of the carbureter of The primary and auxiliary air may be heated by the'warmed cylinders of the motor or by the exhaust from such cylinders.

Such warm air may enter main air duct 1 which is provided with a branch opening 2 in communication with primary air duct 3. In this instance the duct 3 extends down to a basal enlargement or horizontal flare forming the top or upper wall member 4 which opposes the lower platform member 5, the area therebetween serving as a spread out fuel delivery region. The member 5 rests on ledge 6 at the top of reservoir 7. As a simple convenient form, the reservoir 7 is circular and has a lateral extension providing a liquid fuel inlet duct 8' controlled by needle valve 9 of ring float 10. Depending as a skirting from the member 5 and extending centrally through the float 10, is a flange 11 having lateral openings 12 adjacent the bottom of the reservoir 7 so that liquid fuel admitted past the inlet 8 into the reservoir 7 by the float 10 may freely flow to the central chamber formed by the reservoir 7 and the flange 11. A cap nut 13 is used to hold together the member 5 and the reservoir 7.

The reservoir 7 has vent or opening 14 providing communication between the float chamber of the'reservoir and the atmosphere, the o ening being remote above the float 10. apillary conductor means, as felt 15, may serve for lifting the liquid fuel from the reservoir 7 to pad 16 on the central region of the platform member 5,

- sageway thereacross.

to form a vaporization region. While the open structure of the pad 16, which may also be of felt, may not permit very ready travel of air currents therethrough, positive means is provided to permit an air pas- This passageway is 1n communication with the spread out or extended'vaporization area on the member 5 opposing the flare member 4. This positive means is preferably. wire cloth 17 of say meshes to the inch, which readily insures kee throughout its area in assembling as threads 18 of member 5 coact with carburetor main housing 19 to bring the cloth 17 against shoulder 20. Furthermore the cloth 17 abutted by the flare member 4 is held flat on the pad 16, and positively keeps the flare member 4 spaced from the pad 16 thereby providing the restricted reglon for draft of'air across the upper face of the saturated pad, with resulting fuel removal therefrom in gaseous form. This air carrying fuel therewith asses to delivery passage or chamber 21. pring 22 in the chamber 21 normally holds the flare member 4 in position against the cloth 17, but in the extremely remote possibility of any clogging over the pad 16', the spring 22 may act to permit the slight lifting of the mem ber 4 away from the platform 5 for vaporization to-be carried on. It will thus be seen that the air drawn through the carbureter by the motorin passing between the flare member 4 and platform 5 is compelled to travel against the pad 16 and in so do-. ing removes'volatile fuel therefrom.

Threaded portion 23 of the carburetor housing 19 just above the chamber 21 receives threaded enlarged end 24 of tubular member 25. The lower portion of this member 25, concentric with and surrounding the duct 3, is spaced from the duct 3 to provide annular passageway 26 from the chamber 21 to annular series of openings 27, which may be restricted by flange 28 rising from thethreaded portion 23 of the housing 19. The coaction of openings 27 under the ledge of the enlargement 24 with the flange 28 as controlled by the screwing of the member 25 into the housing 19, produces an adjustable valve for controlling the flow of the fuel carrying air from the fuel delivery region of cloth 17. Mixed fuel and air main delivery duct 29 is the passageway with which the openings 28 ping the pad 16' in position washer 37 in packing position.

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communicate. In this duct 29 is main throttle or butterfly valve 30 on shaft 31 having operating crank 32 with control means extending therefrom as desired. The duct 29 in this instance is shown as an 1. fitting having threaded portion 33 coacting with threaded portion 34 of the hous ing member 19, and lock nut 35 which is used for firmly holding the l..-duct 29 in the desired angular relation as to the axis of the carburetor housing.

This l fitting 29 has alined with its connection to the housing 19 an opening 36 as a guide for the member 25, which opening may be packed to minimize or preclude air dilution of the adjusted mixture, by providing compressible packing or felt washer 37, collar 38 as a holder for the washer, a spring 39 coacting between the collar 38 and fixed collar 40 for yieldably holding the felt For rotating the member 25 from a remote control position and thereby adjustthe valve provided by openings 27 adjacent the flange28, a crank arm 41 may be connected to the member 25 adjacent the collar 40, the angular position of which crank arm 41 may be shifted by positioning it above the spring 39 for clamping by binchng its care 42 with a screw 43 to hold it to rotate on the member 25.

The main warmed air supply duct 1 after passing the branch for primary air, as pro vided by the duct 3, serves as auxiliary warmed air supply passage and has therein first a check valve comprising a disk 44, having stem 45, extending through guide bearing 46 of spider 47 carried by the duct 49. Helical spring 48 abutting the bearing 46, surrounding stem and held thereon by crosspin or key 48 yieldably holds the disk 44 in closed position to preclude reversal of airflow in the duct 1, while readily opening for normal warmed air direction flow from past the branch duct 3, to past this check valve 44. Just beyond this valve 44, there is auxiliary air duct section 49 having enlarged portion 50 with an annular series of lateral openings 51, embraced by a circularly shiftable band 52 having openings 53 therein which may be shifted more or less into registry with the openings 51, thereby providing avalve for controlling the supply of unwarmed air for diluting the warm air, as supplied by the auxiliary air duct; The check valve 44 precludes travel tween the collar in operation, primary warmed an may- 1,see,eeo

assembling this section 49 to its adjacent member in assembly, in a similar manner as the connections on each side of the L-fitting 1.

This clamping of the section 49 may be upon a tubular member having a medial annular operating collar 61, so that with the clamp released, the member 60 may be rotated for its threaded portion 62 to coact with threaded portion 63 of the member 19, thereby adjusting the position of the inner end or seat 64 of the member 60 as to check valve disk 65. The member 19 provides a chamber 66 with which the member 69 is in communication and which surrounds the chamber 21 for delivery of air by passage 67 past the openings 27 for a thorough dilution of thisrich vapor fuel laden air.

Concentrically disposed and in opposition to the member 60 the housing 19 has a stem 68 provided with a head 69. The disk is loosely mounted on this stem 68 and yieldably held toward the head 69 by coil spring 70 abutting sleeve 71 having threaded engagement with the housing 19 and in which sleeve 71 the stem 68 is threaded. Accordingly the compression'of the spring 70 is readily adjusted. A lock nut '72 may hold the sleeve 71 to the housing 19. .1. look" may hold the stem 68 to the sleeve 71. justing the disk 65 to the seat 64, allows regulated amount of auxiliary air to flow readily, for the check valve 44 has very slight resistance to proper flow of air. creased intake suction may further open the valve 65 by overcoming the adjusted resistance of the spring 70, thus automatically determining the dilution of the primary fuel laden air;

11s the member 25 is packed to the housing 19, the duct 3 is also packed to the member 25 by washer 74, which may be of felt, held in shape by loose collar 7 5 yieldably forced into position by helical spring 7 6 about the duct 3 and coacting be- 7 5 and the duct 1.

pass from the duct 1, into duct 3, become laden with fuel in passing over the pad16 at a rate regulated by openings 27 to the flange 28, and in passing out such openings 27, it is thoroughly mixed with the auxiliary air, coming from the duct 1, past the check valve 44, receiving unwarmed air passing butterfly valve 54, to flow past the adjustable check valve 65. While fuel variation or heavy fuel may be handled satisfactorily, for so-called gasolene ranging in the sixties Baume gravity, the carbureter develops a superiority of action, not only in great mileage per gallon of fuel, but in insuring regularity of motor operationover a great range of speeds. On starting, as the air is laden with gaseous fuel, there is no flooding of the motor. The motor may take up a load without delay incidental. to warming up. There is a reserve power available for handling even quickl applied loads and handling such loads wit out a cylinder of fuel missing explosion and with no necessity for changing the gears in motor vehicle operation. Vhile the great ranges of regulation to respond to all conditions of fuels and motors are provided, with the desired adjustment, throttle control is usually all that is necessary, for atmospheric disturbances are almost eliminated.

What is claimed and it is desired to secure by Letters Patent is:

1. A carbureter comprising a capillary supply region; a member providing a surface opposing said region to provide between said member and capillary supply region a space for an extended sheet of a thin film of air directed to travel along and into the capillary supply region and take up fuel therefrom, conducting means providing a supply way for air to one side of the member adjacent the capillary region, and delivery means from the opposite side of the member for conducting the fuel carrying air away from the capillary supply region.

2. A carbureter comprising an air supply way, housing means providinga pair of opposing walls, porous liquid fuelconducting means embraced by said walls'to provide passage from said way as a deflecting means directing air into and over said means as an extended thin sheet of film between the conducting means and the deflecting means, and a delivery way for receiving the fuel charged an from said means.

3. A carbureter comprising air supply and delivery ways, housing means providing a wall from and to one side of which Wall said ways respectively extend, a member opposing said wall between said ways, and liquid fuel dispersing porous capillary conducting means'between the member and wall as an extended sheet film forming and maintaining region in the interval between the supply and delivery ways for effecting fuel take-up by air from the supply way in a dispersed film travel between the member and capillary conducting means over and into said means to the delivery way independent of passage through said means.

4. A carbureter, and housing providing a member having an air deflecting way therethrough having a fuel dispersing device in- V eluding an extended surface providing capillary conductor region thereto and over which the air is directed between the deflecting member and conductor region independently of being drawn therethrough, for taking up liquid fuel as a vapor in said air.

In witness whereof I afiix m signature.

EDWARD M. ANDIS.

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