US1202468A

US1202468A - Combined throttle and mixing device for internal-combustion engines.

Info

Publication number: US1202468A
Authority: US
Inventors: Herbert W Allen
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-02-17
Filing date: 1916-02-17
Publication date: 1916-10-24
Anticipated expiration: 1933-10-24

Description

H. w. A LLEN. COMBINED THROTTLE AND MIXING DEVICE FOR INTERNAL COMBUSTION ENGINESi APPLICATION FILED FEB- I'I', 1916.

I ,Wfifififl. I Patented Oct. 24, 1916.

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HERBERT W. ALLEN, OF COALINGA, CALIFORNIA.

COMBINED THROTTLE AND MIXING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed February 17, 1916.

To all whom it may concern Be it known that I, HERBERT W. ALLEN,

a citizen of the United States, and a resi-' dent of Coalinga, in the county 'of'Fresno and State of California, have invented a new and useful Improvement in Combined Throttle and Mixing Devices for Internal- Combustion Engines, of which the following is a specification.

My invention is an improvement in combined throttle and mixing devices for internal combustion engines, and the invention has for its object to provide mechanism of the character specified, adapted to be arranged between the carbureter' and the engine and provided with means for thoroughly mixing the several elements of the explosive charge to make a homogeneous mixture, and wherein the said means is controllable at will for varying the amount of the mixture passing.

In the drawings :Figure 1 is a longitudinal vertical section of the improved device, Fig. 2 is a section on the line 2-2 of Fig. 1, looking in the direction of the arrows adjacent to the line, Fig. 3 is a perspective view of the mixing sleeve, Fig. 4 is an enlarged section showing the arrangement of the perforate sheets, and Fig. 5 is a similar view showing a modified arrangement.

The present embodiment of the invention comprises a casing 1 which is open at opp0- site ends, laterally extending ears or

lugs

2 and 3 being provided adjacent to the openings. The

cars

2 and 3 are drilled and tapped for convenient connection to the engine manifold and the carbureter respectively. Disposed within the casing 1 is a transverse arched portion 4 (Fig. l) which is located adjacent to the engine manifold openings 25 the arch 4 being spaced a suitable distance from the port 25 as shown. The arch 4 is also spaced from the end walls of the casing, the ends of the partition being rounded. The parts when assembled in a manner presently to be explained, form passages 5 at either end of the casing 1 as will clearly be seen by reference to Fig. 1.

A regulating sleeve 6 is rotatably mounted in the casing 1 the sleeve 6 being open at one end and provided with a web 7 at the opposite end. The web 7 is provided with a series of ports or openings 8 which are arranged concentrically with the axis of the sleeve 6. Secured to the web 70f the sleeve 6 is an axial stem 9 which isjournaled in a Specification of Letters Patent.

Patented Uct. 24, 1916.

Serial No. 78,932.

bearing 10 in the end of the casing 1; an operating or controlling arm 11 is secured to the stem 9 outside of the casing 1, the arm 11 being shifted by a suitable connection which extends to a place within convenient reach of the operator. The stem 9 is enlarged adjacent to the web 7 as indicated at 12, to space the web or head 7 from the adjacent end of the casing, and thus form one of the passages 5 previously referred to.

The sleeve 6 above referred to is provided with a plurality of substantially rectangular openings 13 which are rabbeted on their upper edges to form recesses 14 as shown in Fig. 4. The recesses 14 receive the frames 15 of screens 16 which are of a mesh fine enough to atomize the charge from the carbureter and the frames 15 are held in their positions in the recess 14 by solder or other convenient means. If conditions may make it expedient, the screens 16 may be laid in the recesses 14 and secured in place by solder, the frames 15 in such an instance being omitted. The outer surface of the frame 15 lies flush with the peripheral surface of the sleeve 6 and the inner edge of the frame is flush with the walls of the re cess 14. The screens 16 are curved to correspond with the curvature of the periphery of the sleeve 6, the ends of the frame 15 being similarly curved. Arranged within the easing 1 is a pair of inner and outer concentrically disposed

shells

17 and 18 respectively, which form a pocket in which the controlling sleeve 6 is located. The sleeve 18 bears against a suitably formed seat 19 at that end of the casing adjacent the inlet port or opening 20 as well as against a similar seat in the partition 4. The shell 17 is provided with an annular flange 21 which is of a diameter equal to that of the sleeve 18. The flange 21 engages the seat 19 as will be .seen in Fig. 1 and also forms the closure for one end of the shell 18.

The flange 21 forms an abutment for the open end of the controlling sleeve 6 while the web 7 of the sleeve in turn forms an abutment for the end of the shell 17. The sleeve 6 is thus held, by the means just described, in such a manner that it may easily be moved by the arm 11 and yet the escape of gas around the joints is wellprovided against. A dowel pin 22 is inserted through the partition 4 and the shell 18 to prevent undesirable movement of the shell and a similar dowel pin 27 is insertedspectively which are in normal registration but are adapted to be closed by the rotatable sleeve 6. The openings 13 of the sleeve 6 are adapted to register with the openings 23 and 24 when the sleeve 6 is rotated, the area of the resultant passage between the openings being proportional to the distance through which the arm 11 has been moved. The

, openings23 and 24 are disposed at approximately'rightangles with the casing ports and although if more than two open ings .23 and 24 are provided in the

shells

17 and 18, the angles at which they will be disposed in respect to the

ports

20 and 25 will be correspondingly changed. The openings 23 and 24 may be similarly rabbeted as are the openings 13 in the sleeve 6 (see Fig. 4) screens 26 being placed in the lab beted portions as will clearly be seenin Fig.

2. The walls of the openings 23 and 24 are in radial alinement with each other.

One end of the casing 1 is provided with an internally threaded opening 28 into which a correspondingly threaded cap 29 is screwed. The cap 29is formed with a marginal flange 30 which engages the face of the opening and forms a tight closure at this point. The cap 29 has a plurality of internally disposed lugs 31 as shown in Fig. 1

' shell in position.

the inner faces of which engage the flange 21 of the shell 17, thus serving to retain the The gaseous mixture passes from the interior of the shell 17, around the lugs 31 and through the passage 5 indicated by the arrows in Fig. 1.

Having described the construction of the device,- the operation thereof is as follows: The casing 1 is connected between the en- 'gine manifold and the carbureter in the manner previously pointed out. The suction of the engine caused by the operation of the pistons, causes thegaseou's charge to be drawn from the carbureter, through the port 20 into the casing 1. The regulating sleeve 6 is turned a certain distance by means of the arm 11, so as to permit the gaseous charge to pass through the screens 26 of the

shells

17 and 18 and the screens 13 of the rotatable sleeve 6 and thus cause the elements of the charge to thoroughly commingle.

The charge enters the inner shell 17 from the passages '20 at both sides of the casing through

ports

12, 23 and 24 as shown in Fig. 2 and having reached the interior of the shell 17, it passes through the openings 8 in theweb 7 and out of the open end of the shell 17, through the passages 5 and thereafter through the outlet port 25 to the en gine manifold. The sleeve 6 may be rotated a gireater or lesser degree accordingly as the V a modification of the screen for the sleeve and shell openings may consist of a perfo' rate sheet of metal 32 which has a frame like mounting which in turn rests in the rabbeted edge-34 of the opening 13 in a manner similarly used to hold the frame 15, shown in Fig. 4,

\Vhilc the construction shown in the drawing constitutes the preferred form of the device, it is obvious that various modifications of the device may be made without departing from the spirit of the invention or the scope of the claims.

7 I claim 1. A mixing device for internal combustion engines, comprising a casing having at one end an internally threaded opening and having oppositely arranged ports at right angles to the axis of the casing for connec tion with the manifold of the engine and with the carburetor, a. partition extending transversely of the casing adjacent to the first-named port and spaced apart from the casing at its ends to form passages at the ends of the casing, a pair of coaxial shells supported in the casing the partition being curved to fit the outermost shell, the inner shell being spaced apart from the outer shell and having at the end of the casing provided with the opening, an annular rib or flange abutting the outer shell, a sleeve fitting between the shells and having at the end remote from the end opening of the casing an axial stem journaled in the casing and ex tending outside of the same for oscillating the sleeve, each shell having oppositely ar ranged openings and the openings of the shells registering, and said openings being in a line atright angles to the line connecting the ports of the casing, the shell having openings adapted to register therewith, and a screen of perforate material over each opening of the shells and sleeve, and means for preventing rotation of the shells.

2. A mixing device for internal combustion engines, comprising a casing having oppositely arranged ports for connection with the manifold of the engine and with the carbureter, a pair of coaxial shells supported in the casing and closing the space between the ports and spaced apart from each other, said shells having oppositely arranged openings in a line at right angles to the line connecting the ports. a sleeve mounted to rotate between the shells and having openings adapted to register with the openings of the shells, and means for oscillating the sleeve, each opening of each shell and the sleeve having a covering of perforate material.

3. A mixing device for internal combustion engines, comprising a casing having oppositely arranged ports for connection with the manifold of the engine and With the carbureter, a pair of coaxial shells supported in the casing and closing the space between the ports and spaced apart from each other, said shells having oppositely arranged openings in a line at right angles to the lines connecting the ports and a sleeve mounted to rotate between the shells and having openings adapted to register with the openings of the shells.

4. A mixing device for internal combustion engines; the combination of an open ended casing, a pair of concentrically arranged shells having openings disposed in the casing so as to close the space between the openings but leave passages at the sides thereof, a rotatable sleeve having openings disposed between the shells the sleeve having an apertured Web adjacent to one of the passages the other end being in free co1nmunication with the other passage, perforate material over the sleeve and shell openings, and turning means for moving the sleeve relatively to the shells to separate the openings proportionately.

5. A mixing device for internal combustion engines, the combination of an open end casing, a partition spaced from one casing opening and from the sides of the casing to leave side passages the partition having a seat, other seats being arranged adjacent to the opposite casing opening; an outer shell engaging the seats, a rotatable sleeve having an apertured web and an open end engaging the inner surface of the shell, an open ended inner shell. engaging the sleeve one end abutting the sleeve web the other end having a peripheral flange disposeu Ior abutment by the other end of the sleeve and one end of the outer shell, said shells and sleeve having openings, means for rotating the sleeve relatively to the shells and perforate material covering the openings.

HERBERT W. ALLEN.

@opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.