US1172388A

US1172388A - Carbureter.

Info

Publication number: US1172388A
Application number: US767815A
Authority: US
Inventors: Sydney I Prescott
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-12
Filing date: 1915-02-12
Publication date: 1916-02-22
Anticipated expiration: 1933-02-22

Description

sYnnir-I. "rnnsco'r'r, {or-Bnoonm, .imw r0315.

To all whom it mag concern,-

'Be it known that I, SYDNEY I. Pims'cotrr,

a citizen of the United States residing at. Brooklyn, county of Kings, and State "of New York, have invented a new and useful Improvement in Carbureters, ofwhich the following is-a specification.

I provision of production of a carbureter of the type dis This invention relates toan improvement in carbureters.

In my Patent No. 1,143,227, issued June 15, 1915, and in my co-pending application Serial No. 6025, filed February 4, 1915, there is disclosed a carbureter'provided with an air intake having co-acting movable 'memf bers adapted to amplify or enlarge the air intake and vice versa, without changing the form of the intake or its character as a Ven turi tube.

The main object of the present invention is the production of an improved carbureter of the general type disclosed in said co-pending applications,although the present invention is also applicable to other types of carbureters.

In the carbureter disclosed in the applications above mentioned, the movable members or air intake amplifiers are moved in one direction by a current of air passing through the intake and induced by'the suction of an engine in connection .with which the device is used, or forced through the intake. by other means. In the event of asudden opening of the throttlefrom idling position to wide open position, or the reverse; or- .in the event of violent bouncing of a car-carrying the device when running over a rough road at high speed, the amplifiers might move from one position to another too rapidly to maintain their highest possible efliciency. r r 1 The present invention contemplates the means cooperating. with-an air intake member for retarding the mo ement of said member in both directions not only,

when the throttle is carelessly or accidentally operated too suddenly, but also whenever a tendency exists for the amplifiers-to be suddenly moved by bouncing ofa car carrying the device, the cooperatingmeans being of such a character that it will'not in anyway interfere with the normal action of the 'intake amplifiers.

A further object of the invention is the closed in the applications above referred to, but which is simpler and more inexpensive.

Speciflead mi of Iet'ters Patent.

cannon-Eran.

Patented Feb. 22, 1916.

a nmantnInca.re 'mm- 12, 1515. Serial m; 7,678."

With these and other objects not specifically mentioned in view, the invention cons sts-1n certain constructions and combinations which will be hereinafter fully described and then specifically set forth-1n the clalms hereunto appended.

In the accompanying drawings, which form a part of this specification and in wh ch hke characters of reference indicate the same or like parts, Figure 1 is a side elevat1on-partly broken away-of a device constructed in accordance with the inven- ,tion.' Fig. '2 is a sectional view taken on the line 22'in Fig. 1.

In carrying the invention into effect, there is provided an air intake having a member movable in two directions, and cooperating means for retarding the movement of said member in both directions. In the best constructions, thissmeans will be normally inoperative and. is designed to be operative only 'when the tendency exists for a movement of the intake member which is too rapid or violent for the maintenance of the' highest possible efliciency. In the best constructions also, this cooperating means will be controlled by air trapped in a position isolated from'the air-intake. In the best constructions also, a stationary abutment will be employed and located within the trapped air, this abutment cooperating with the movable member, not only for the purpose of --retardin member, but also or the purpose of limiting the movement of said member under both normal and abnormal conditions. In the the movement of said best constructions also, the device will in-.

7 within the casing. In the best constructions also, the casing may be adapted, not only for housing "the intake amplifiers and the retarding means therefor, but it may also carry as aunit therewitha float chamber and ,operative connections.

' The device selected to illustrate the invention is'but one of many possible concrete embodiments of the same, and the invention therefore is not to be restricted to the preelude a. casing forming a chamber open at one side-only," a plate for closing the open cise details of the structure shown and de- I scribed. Furthermore, certain parts of the invention are capable of use independent of other parts, and such independent use is contemplated.

Referring to the drawings, 3 indicates generally a casting or casing which in 'cludes a fiat wall 4, semi-circular end Walls 5 and (5, and a float chamber 7 adjacent the wall 6. The casing is further provided With an inlet chamber 8 in which is bridged a fuel nozzle supporting boss 9, the inlet chamber-8 and boss 9 opening into the space within the casing from below. Leading out of the space within the casing in an upward direction is a throttle chamber 10 formed by walls integral with the casing 3,

and extending upwardly therefrom. Within the throttle chamber 10 is located a throttle 11 of well known construction and the upper end of the chamber 10 terminates in a flange 12 provided with suitable holes 13 through which bolts may be passed to secure the device to the manifold of an engine. The casing 3 is further provided with a drain-cock 14 of well known construction and with a gasolene inlet 15 also of well known construction, and the open upper end of the float chamber 7 is closed by a plate 16 held in position by means of a spring 17 and screw 18. \Vithin this float chamber is located a float 19 of well known construction. A channel 20 leads from the float chamber to the interior of the boss 9 before referred to, and secured in said boss is a fuel nozzle 21 of well known construction. A plug 22 is provided and threads into the lower part of the boss 9, and threaded into this plug22 is a cap screw 23 serving to hold an inlet pipe 24 adjustably in position below the inlet chamber 8 and in communication therewith. It will be noted that the chamber formed by the casing is open at one side and this side is closed by means of a plate 25, preferably formed by a die casting to avoid machine work that would otherwise be necessary, this plate being fitted to a shoulder 26 rabbeted in the walls 5 and 6 for this purpose. The plate 25 is held in position by means-of two through bolts 27 extending through suitable apertures in the plate and in the rear wall 4 of the casing.

These through bolts 27 also serve to sup port the rocking intake amplifiers 28 which are intergeared and provided with semi-circular grooves 29 of progressively increasing radius.

Except in so far as the particular construction of the chamber in which the amplifiers operate is concerned, the structure so far described is fully disclosed in the applications before referred to, and reference is made to said applications for a full disclosure of the objects and mode of operation of the amplifiers and connections,

said description of the mode of operation being .omitted herefrom in the interest brevity and clearness.

Each of the amplifiers 28 differs from the amplifiers disclosed in the applications above referred to in being provided with a pair of plane

radial walls

30 and 31 mounted substantially at right angles and extending across the full width of the amplifier from the rear wall at of the casing to the closing plate 25. By an inspection of Fig. 1, it will be readily understood that air is trapped between these

radial walls

30 and 31, the semi-circular walls 5 and 6, the flat wall 4 of the casing, and the flat inner surface of the plate 25. Cooperating with the

radial walls

30 and 31 of each amplifier is an abutment 32 located within the space between said walls and consequently within the trapped air, these abutments 32 being die cast with the plate 25, although in oer-- tain constructions they may be otherwise mounted. A narrow space marked 33 is left between the edge of each abutment 32 and the hub. of each amplifier 28, and another narrow space marked 3% may, if desired, be left between the'extreme edge of each abutment and the rear wall 4 of the casing. This is for permitting the passage of air from one side of the abutment tothe other as the amplifier rocks slowly in normal operation, so that the passage of air from one side to the other of the abutment does not interfere with the rocking movement of the amplifiers under normal conditions. If, however, the amplifiers are suddenly rocked in either direction, the large volume of air trapped between the abutment 32 and radial Wall 30 or radial wall 31as the case may becannot freely pass from one side of the abutment to the other, and the resistance to the passage of the air through the

narrow spaces

33 and 31 operates to retard the movement of the amplifier. It will be readily understood that the abutment also serves as a limiting stop at both extremes of movement of the amplifier.

It may be here remarked that the drawings show the parts in inoperative position with closed throttle, but it will be readilyunderstood that when the device is in operation, the adjacent parts of the amplifiers move upwardly more or less, according to the position of the throttle and speed of the. engine; and this results in moving the walls 31 away from the abutment 32 so that during the normal operation of the device, there is trapped air on both sides of the abutment 32, and consequently any sudden change of amplifier position in either direction will be retarded by the

walls

30 or 31 and the cotiperating abutment 32.

What I claim "is:

1. In a carbureter, the combination with an air intake having a pair of members movable in two directions, of coiiperating pneumatic means for retarding the movement of said members in both directionfsand a fuel nozzle-located between and cooperating with said members. a carbureter, the combination with an air intake having a pair of rocking members, of coiiperating pneumatic means for retarding the movement of said members in both directions, and a fuel nozzle located between and cooperative with said members.

. 3. In a carburetor, the combination with an air intake having a pair of members adapted to be moved in one direction by the suction of: an engine in connection with which the device is used and to be moved in.

which the device'is used and to be moved in the opposite direction by gravity, of cooperating means for retarding the movement of said members in both directions, and a fuel nozzle locatedbetween and cooperating with said members. M

-5. In a carbureter, the combination with an air intake having a pair of members adaptedto be rocked in one direction by the suction of an engine in connection with which the device is used and to be rocked in the opposite direction by gravity, of cooperating means for retarding the movement of saidmembers in both directions, and a fuel nozzle" located between and coiiperating with said members.

6. In a carbureter, the combination with an-air intake having a pair of members movable in two directions, of co-operating means controlled by trapped air for retarding the movement of said members in both directions, and a fuel nozzle located between and coiiperating with said members.

7. In a carbureter, the combination with an air intake having a pair of members movable in'two 'directions, of cotiperating means controlledby air trapped in a POSI- 'tion isolated from-the air intake for retarding the movementj of said members in both directions, and a fuel nozzle located between and cooperating with said members.

8. In a carbureter, the combination with a member movable in two directions and having-a pair of plane walls, of means for trappingair between said walls, and a stationary abutmentlocated in the space between said walls and'operative to retard and to limit the-movement of said member in both directions. i

9. In a carbureter, the combination with a rocking member having two plane radial 1,1-zaass walls, of means for trapping air between said walls, and an abutment located-within the space between said Walls and operative to retard and to limit the movement of said member in both directions.

10. In a carbureter, the combination with a rocking member having two plane radial walls located substantially at right angles, of means-for trapping air between said walls, and anabutment located within the space between said walls and operativeto retard and to limit the movement'of said member in both directions.

11. In a carbureter, the combination with an air intake having co-acting members movable in two directions, of coiiperat-ing pneumatic means for retarding the movement of both members in both directions, and a fuel nozzle located between and cooperative with said members,

12. In a carbureter, the combination with an air intake having co-acting' rocking members, of cobperating pneumatic :means for retarding the movement of both members in both directions, and a fuel nozzle located between and cotiperative withsaid members.

13. In a carbureter, the combination with an air intake having intergeared co-ac'ting rocking members, of co'tiperating pneumatic means for retarding the movement-of both members in both directions, and a fuel noz-- zle located between and cooperative with said members. v

14. In a carbureter, the combination with an air intake having co-acting members movable in opposite directions, of pneumatic means cooperating with each member for retarding the movement of'said member in both directions, and a fuel nozzle located between and cooperative with-said members.

15. Ina carbureter, the combination with acasing forming a chamberopen at one side only,v of a plate for closingthe open side of the chamber, a pair of co-acting membersmovable in oppositedirections and located within the casing and adapte'd'to form therebetween an air intake, means cooperating with said members for retarding the movement of the same in'both directions,'and a:

fuel nozzle located between and cooperating with said members.

16. In a carbureter, the combination with a casing forming a chamber fopen at one side only, of a plate for closing the open side of the chamber, a pair of movable members located within said casing and adapted to form therebetween an air intake of variable amplitude, means supported by the easing and the plate for supporting said movable members, means for retarding and limiting the movement of said members and a fuel nozzle located between and coiiperating with said members.

17 .In a carbureter, the co'mbination'with a casing forming a chamber open at one side only, of a plate for closing the open side of the chamber, a pair of co-acting rocking members located within the casing and adapted to form therebetween an air intake of variable amplitude each of said rocking members having a pair of plane radial walls adapted to trap air between the same and the casing, and a pair of fixed abutments one for each member located within the trapped air between the walls for retarding the movement of said members in both directions.

' 18. In a carbnreter, the combination with a casing forming a chamber open at one side only, of a plate for closing the open side of the chamber, a pair of (so-acting rocking members located Within the casing and adapted to form therebetween an air intake of variable amplitude each of said r0ck ing members having a pair of plane radial Walls adapted to trap air between. the same and the casing, and a pair of fixed abutments one for each member carried by said plate and located within the trapped air between the walls for retarding the movement of said members in both directions.

19. In a carbureter, the combination with an air intake having a pair of members SYDNEY I. PRESCOTT.

Witnesses:

JAMES A. MGOANN, ELIZABETH LOUISE RUSSELL.