US1495661A - Combustion-promoting device for internal-combustion engines - Google Patents

Description

COMBUSTION FRQMOTING DEVICE FOR INTERNAL CQMBUSTION ENGINES Filed Feb. 9, 1922 2 sh'eetsheet 1 G.P.ALLEN Magi 2?' y Filed Feb. 9, 1922 2 snwwfsheez 2 Patented May 27, 192,4.

GEORGE P. ALLEN, 0F LOS NGELES, CALIFORNIA.

GOHBUSTION-PBHOTING DEVICE FOR'I INTERNAL-COMBUSTION ENGINES.

Application led February 9, 1922. Serial No. 535,199.

To all whom t may concern.'

Be it known that I, GEORGE P. ALLEN, a citizen of the United States, residing at Los Angeles, inthe county of Los Angeles and State of California, have invented new and useful Improvements in Combustion- Promoting Devices for Internal-Combustion Engines, of which the following 4is a specification.

My invention relates to internal combustion engines for motor vehicles, and a purpose of my invention'is the rovision of an attachment for internal com ustion engines by means of which additional passageways are provided for increasing the supply of combustible mixtures other than that provided by the usual intake manifold, such mixtures being of the same or different character than that supplied from the en' gines carburetor whereby, the general etliciency of an engine to which the attachment is lapplied is greatly increased.

bustible mixtures supplied to the engine both by the attachment and the engines carburetor vwhich also tendsto increase the power and efliciency of an engine.

I will describe one form of engine and one formof attachment embodyin my-invention and will then point out t e novel features thereof in claims'.

In the accompanying drawings,

Figure 1 is a view showing in side elevation one form of internal combustion engine and one `form of attachment embodying my invention, with portions thereof broken away to reveal parts not otherwise disclosed.

Fig.' 2 is a fragmentary top plan view partly in section of the engine and attachment shown in Fig. 1.

Fig. 3 is a view showing the engine and attachment in front end elevation with portions thereof partly in section.

Referring specifically to the drawings in which similar reference characters refer to similar parts, my invention is shown applied to an internal combustion engine lof standard construction and including a cylinder block B, a cylinder head I-I having the usual spark plug openings P, a1 carburetor K, and an intake manifold M. The passage -o'f gas from the carburetor to the intake mamfold is controlled bfy throttle valve V provided' with an operating arm A invention further provides novel andy more effective means for igniting the com-` connected to the throttle lever in the usual manner, as will be understood.

rlfhe attachment forming the subject matter ofmy invention comprises in the present instance a subsidiary manigold M' consisting of an upper section 15 and a lower section 16,- the latter being inserted in the usual joint provided between the carburetor K and the intake manifold M so as to be in communication with the carburetor. The` section 16 is provided with a throttle valvel V to the stem of which is connected a spring 17 for normally urging the valve to closed position. Another spring 18 is connected to the stem of the valve V and to the arm A, this spring serving to provide an `operative connection between the valves Va'nd V so as to cause the latter to be operated simultaneously with the former. For the purpose of admitting air to the manifold M, a valve V2 is provided in the section 16 at a point beyond the throttle valve V', and this valve is normally urged to closed position by means of a sprin 19. The stem 20 of the valve V2 is operatively connected to the usual spark rod 21 by means of a wire 22 which 1s trained around' the rod in the manner clearly shown in Fig. 3 so that when the rod is rotated anactua tion of the yalve is eiected.

The upper end of themanifold M is provided with a T 23 which is detachably c0nnected to branch pipes 24 and 24a having vertical pipe extensions 25 and 258L respectively ythat are also detachably associated with the branch pipes. The pipe extensions 25 and 25" are internally formed with valve seats 26 including' sleeves 27 in which the stems 28 of valves Va are slidably fitted. Springs 29 surround the valve stems 28 above the sleeves 27 for normally urging the valves to closed position to prevent the assage of gaseous vapors from the mani old M through the pipe extensions. As clearly connected to an operating rod ,R which is shown in Fig. 1, the pipe extensions 25 and 25". are threadedly tted within the spark plug openings P so that the manifold M may be said to be in communication with the upper end of the cylinders of the internal combustion engines, that is, when the G of standard form and in such manner that the termina-ls of the plugs are disposed in the path of movement of the gaseous vapors as they pass through the pipe extensions thereby utilizing the vapors in effecting a scavenging' of the terminals.

ln operation, the pistons of the engine not only operate to create a suction within the usual manifold M but also in the subsidiary manifold M so that the combustible mixture emanating from the carburetor K is conveyed to the branch pipes 24: and 24C. The suction created within the pipe sections 25and 25a is sucient to overcome' the tension of the springs 29 and ythereby open the valves V3, whereby the admission of the combustible mixture to the upper ends of the cylinders is eected and simultaneously with the admission of the mixture to the sides of the cylinders through the manifold M. rlhe supply of current of the spark plugs Gr occurs in the usual manner so that the ignition of the combustible mixture within the respective cylinders takes place in the proper sequence. During the ignition of the mixture, the valves V3 are naturally closed thus disconnecting the manifold M from the cylinders in the same manner as the usual intake valves of an internal combustion engine.

From the foregoing operation taken in conjunction with the accompanying drawings, it will be manifest that the attachment provides additional means for supplying a combustible mixture to the cylinders of an engine at points other than through the usual intake valves, thereby greatly increasing the power and efficiency of the engine. lt-is clear that the attachment may be associated with any standard form of internal combustion engine without in any way modifying the construction of the latter, and that when in applied position it provides an additional area for the passage of the combustible mixture from the carburetor to the cylinders of the engine which serves to materially increase the power of the engine particularly when the engine is working under a heavy load.

'lhe valve V2 serves to supply additional air to the manifold M as the spark of the engine is advanced, and this additional air supply obviously increases the combusti-.

ble properties of the combustible mixture traversing the manifold M and which is of course ultimately admitted to thecylinders of the engine.

Although ll have specifically shown and described the attachment as providing a subsidiarymeans for conducting the combustible minture to the cylinders of the engine from the usual carburetor, it is to be understood that the manifold M' can be connected to another source of combustible mixture supply to conduct such mixture to the cylinders of `the engine, and that this mixture can be of the same or of a different character than the mixture emanating from the carburetor K.

What ll claim is:

1. lin combination, an internal combustion engine having spark plug openings in the cylinder head, a carburetor, an intake manifold, a subsidiary intake manifold connected between the carburetor and the intake manifold, valve means for connecting the subsidiary intake manifold to the sparlr plug openings, ignition means carried by the last means, a throttle valve for controlling the passage of duid from the carburetor to the intake manifold, a second throttle valve in the subsidiary intake manifold, and means operativel connecting the two throttle valves for e ecting simultaneous operation of the two.

2. lin combination, an internal combustion engine having spark plug openings in the cylinder head, a carburetor, an intake manifold, a subsidiary intake manifold connected between the carburetor and the intake manifold, valve means for connecting the subsidiary intake manifold to the spark plug openings, ignition means carried by the last means, a throttle valve for controlling the passage of fluid from the carburetor to the intake manifold, av second throttle valve in the subsidiary intake manifold, means operatively connecting the two throttle valves for eect-ing simultaneous operation of the two,`and an air valve associated with the subsidiary intake manifold for controlling the supply of air to the latter.

3. An attachment of the character described comprising a manifold, branch pipes connected to one end of the manifold, pipe extensions connected to the branch pipes, valves within the pipe extensions to allow the passage of fluid outwardly of the pipe extensions, gas ignition means carried by the pipe extensions, a throttle valve within the manifold, an air port formed in the intake manifold, and a valve for controlling said port. v

lln testimony whereof ll have signed my name to this specification.

GEORGE ll. ALLEN.

ltlii

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