US1328102A - Air control for internal-combustion engines - Google Patents

Description

J. PL REMINHUN.

AIR CONIROL FDR INTERNAL COMBUSTION EYJGINES. APPLICATION FILED MAY 2. I9I1..

1 32 1 Q2 0 Patented Jan. 13, MELZU.

'2 SHEETSSHEEY L 1W Jsepfi Pam Zia/angina,

g 1. P. REMINGTON.

' AIR CONTROL FOR INTERNAL-COMBUSTION ENGINES.

I APPLICATION FILED 'MAY 3.1917.

Patented Jan. 13, 1920.

2 SfPEETS-SHEET 2.

4 I lmwwtw Joseph Pemyifcmizzyfom WWW . Application filed May 3,1917. Serial No. 166,133.

UNITED STATES PATENT (OFFICE.

JOSEPH PERCY BEMINGTON, OF'PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO" I REMINGTON MANUFACTURING COMPANY, OF PHILADELPHIA, PENN SYL- VANIA, A CORPORATION OF PENNSYLVANIA.

AIR mm; non INTERNAL-COMBUSTION ENGINES.

i To all whom it may concern:

. Be .it known that I, JOSEPH PERCY REM- moron, of Philadelphia, in the county of Philadelphia and State of Pennsylvan a, have invented certain new and useful Improvements in Air Controls for Internal- Combustion Engines, whereof the following is a specification, reference being had to the accompanying drawings. v

My invention has for its object the proper control of air-to the explosive mixtures before being delivered lnto the cylinders of internal combustlon engines such as usedon I automobiles, or motor boats; and more particularly, my object is to providemeans whereby the desired richness of-explosive mixture is assured at starting. and while accelerating'the engine speed and thereafter permit the engine to be controlled by the I throttle alone; or on "the other hand to control the engine speed by a variable air supply and timer control when the latter is provided on the automobile or boat, th s latter being in addition to the assurance of a proper admixture automatically provlded at starting and accelerating the englne speed.

My invention relates to mechanism whereby I provide a valve-controlled auxiliary air inlet between the carbureter and the engine, the operating mechanism for the air valve being so coordinated with the mechanisms for operating the throttle valve of I the carburetor that while the throttle valve is controlled independentlyof the auxiliary or air valve, the opening of the auxiliary or air valve involves the' opening of the throttle valve if not already opened.

wise the case.

By the use of this invention, when the engine is running at high speedthe air for the engine can be'largelysupplied from the 5 auxiliary valve with a corresponding savingof fuel. Furthermore, I thus obtain a greater possible variation in the amount of air admissable to the mixture than is other- My invention also consists of improvements hereinafter described whereby the a above objects and results are attained, said improvements comprising certain organization and combination of parts which are fully described hereinafter and more particularly defined in the claims.

For the purpose of illustrating'my inven- Specification of Letters Patent. Patented tion, I have shown in the accompanying drawings the embodiment thereof which is several instrumentalities of which my invention consists, can .be variously arranged and organized and that my invention is not Jan. '13, 1920.-

limited to the precise arrangement and organ'i'zation of the instrumentalities herein shown and described.

, In the'accompanying drawings :Figur'e I, is an elevation showing the carbureter of an engine having my device applied to it and illustrating also the operating parts; F ig; II, is a plan view of the same; Fig.

. III, is an enlarged sectional view along the line III-III, of Fig. II; Fig. IV, is an enlarged plan view showing in detail certain of the connections disclosed in Fig. II.

'. The carbureter 1, is provided with an air intake 2, and a throttle valve operated by the spindle 3; This spindle carries a lever '4, the extremity of which isconnected by the rod 5, with means for operating the throttle. An arm 6, integrally formed with lever 4, on the spindle 3, carries a set screw 7 the end of which abuts against a stop 8,

so that by the adjustment of the set screw the extent to which the throttle closes is properly adjusted. The parts which have thus far been described are old in the art. According to my: invention I interpose a To accomplish this, I interpose a plate or gasket 10, between the coupling flanges 12, 12, which unite the carbureter with the pipe 13, leading to the engine. Thegasket 10, has a channel 14, in which is set the valve 15, mounted on the spindle 16; When the valve is open air is admitted to the channel 14, by way of the tube-17, which as shown in Fig. 1, opens in closeproximity to the engine cylinders 9, whereby a preliminary heating of the air is obtained. A cook .18, also leads to the channel 14 and is fitted with a nipple capable of receiving a rubber tube, whereby, if desired, a scavenging agent may be admitted to, the engine. This cock is also useful in case it is desired to admit degree of opening of the opens the an additionally regulated quantity of cool air to the auxiliary valve, as for example, in warm climates.

The spindle 16, upon which the auxiliary air valve is mounted carries an arm 20, which is connected by link 21, with one arm of a bell crank lever 22, which is pivoted on the arm 6, 'near its extremity. The other arm of the bell crank lever is under the tension of the spring 23, and has its extremity connected by the rod 24, to an arm 25, mounted on a rock shaft 26, controlled by a pedal 27. The arm of the bell crank lever 22, to which the link 21, is attached, carries an adjusting screw 28, the extremity of which contacts with the lever arm 4.

The rod 5, is attached to the extremity of the lever 4, by a sliding or lost motion con nection whic permits said rod to slide through the collar 30, mounted on the extremity of the lever arm 4, thus permitting rotation of the spindle 3, carr ing the throttle valve without affecting tie positionof I the rod 5; but the end of therod 5, is bent as seen in Fig. I, so as to prevent the rod from drawing'out of the collar 30. I

The operation of my device is as'follows: Assuming the auxiliary valve to be closed as shown in the drawings, the throttle valve of the carbureter is operated manually, in the usual way, by means of the rod 5, which valve in opposition to the tension of the sprin 23, tending to keep it closed. The pull 0 throttle in 0 position to spring 23, has no efl'ect upon t e position of the auxiliary or air valve 15, since *theshifting of the position of the pivot of the bell crank lever 22, does not so affect the relationship of the actuating parts for the auxiliary valve as'to. rotate said valve. There is merely a slight pull of the rod 24, with corresponding depression of the pedal 27 The auxiliary valve 15 is shown in closed position. By the depression of the pedal 27, and the actuation of the connected parts,

the bell crank lever 22, is swung on its pivot, and by means of the link 21, and .arm 20, the auxiliary air inlet is opened. At the same time the contact of the screw 28, with the lever arm 4, occasions a corresponding opening of the throttle valve, the collar 30, at the end of the lever arm 4, sliding over the rod 5, to permit this operation. The arm 20 may have a series of holes 19 with either of which the link 21 may connect to adjust the valve with a given movement of the pedal. By adjusting the screw 28, it will be apparent that the air valve 15 may be opened to a variable extent relatively to the opening of the throttle valve, and hence this adjustment Will provide a timed opening of the throttle when opening the air valve to provide smaller relative adjustment of the air to the explothe rod 5, which opens the" sive mixture from the carbureter, whereas the adjustment by the link 21 and arm 20 will provide for relatively large adjustments to suit requirements by engines of diiferent sizes and speeds at normal operation.

It will, therefore be seen that when the auxiliary air valve is closed the throttle lever may be opened or closed without in any- Wise affecting the position of the auxiliary air valve, While on the other hand, the depression of the pedal opens the auxiliary air valve and also opens the throttle, unless it is already open. When the pedal is raised both valves again close in response to the action of the spring 23, the throttle going to its set position. Itfwill thus be seenth'at spring 23 holds the auxiliary air inlet valve on its seat against the suction of the engine and is opened only by a positive movement from the operator. Y

By this operation itis manifest that when starting the engine the explosive mixture may have the required richness to insure proper ignition at initial speeds and automatically reduce therichness of the mixture as the speed is accelerated by greater opening of the valves under the pedal action.

Were the auxiliary air inlet opened by the throttle lever, the engine would receive at high speed richer mixtures than can be economically utilized. By my device it is possible to effect a'considerable saving of.

fuel when the engine is running at high speed, since the depression of the pedal,

although opening the throttle, also opens the auxiliary valve, thereby producing a much leaner mixture than can be obtained by simply opening the throttle. It will be understood that while I have shown a suitable construction for adapting my invention to the use of automobiles of a certain type, I in nowise intend to restrict myself to such construction, since it is apparent that the mechanism may be constructed in various ways, so long asthe throttle valve and. air valve may open together and after being opened, the air valves close without closing the throttle valve, the latter being thereafter capable of manual timing devices; or where variable speeds are required and especially high speeds, the

engine may be accelerated. and controlled largely by use of my auxiliary air controlling devices.

It Will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable, and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that I do not restrict myself to the details, as the same are susceptible of modification in various particulars without departing from the spirit or scope of the invention.

Having thus described my invention, I claim:

lQIn an apparatus for supplying an explosive mixture to an engine, the combination of a carbureter, a throttle valve therefor, an auxiliary air inlet, a valve therefor, means for holding said valve closed against the suction of the engine, a member actu atedby the operator,devices operated by said member for controlling the throttle valve for supplying a relatively rich mixture in varying quantities for starting and for-slow running, .a second member actuated by the operator independently of the first named member, and devices operated by said second member for controlling the throttle valve and the auxiliary air inlet valve, whereby said rich mixture may be diluted into a relatively lean mixture and supplied to the engine in varying quantities for fast running.

2. In an apparatus for supplying an explosive mixture to ail-engine, the combination of a carbureter, a throttle valve therefor, an auxiliary air inlet disposed between 'the carbureter and the engine for tdmitting air to the explosive mixture as it passes from the carbureter to the engine, a valve therefor, means for holding said valve closed against the suction of the engine, a member actuated by the operator, devices operated by said member for controlling the throttle valve for supplying a relatively rich mixture in varying quantities for starting and for slow running, a second member actuated by the operator independently of the first named member, and devices operated by said second member for controlling the throttle valve and the auxiliary air inlet valve, whereby said rich mixture may be diluted into a relatively lean mixture and supplied to the engine in varying quantities for fast running.

3. In an' apparatus for supplying an explosive mixture to an engine, the combination' of the carbureter, a throttle valve therefor, an auxiliary air inlet, a valve therefor, spring means for holding said valve closed against the suction of the engine, a member actuated by the operator, devices operated by said member for controlling the throttle valve for, supplying a relatively rich mix ture in varying quantities for starting and for slow running. a second member actuated by the operatorindependently of the first named member, and devices operated by saidsecond member for controlling the throttle valve and for positively opening the auxiliary air inlet valve, whereby said rich mixture may be diluted into a relatively lean mixtureand supplied to the engine in varying quantities for fast running.

4. In an apparatus for supplying an explosive mixture to an engine, the combina tion of a carbureter, a throttle valve therefor, an auxiliary air inlet disposed between the carburetor and the engine for admitting air to the explosive mixture as it passes from the carbureter to the engine, a valve there-- for, means for holding said'valve closed against the suction of the engine, a member actuated by the operator, devices operated by said member for controlling the throttle valve for supplying a relatively rich mixture in varying quantities for starting and for sloW running, a second member actuated" by the operator independently of the first named member, devices operated by said second member for controlling the throttle valve and the auxiliary air inlet valve,

whereby said rich mixture may be diluted into a relatively lean mixture and supplied to the engine in varying quantities for fast running, the means for holding the valve closed against the suction of the engine also acting to automatically restore said second member and devices controlled thereby to normal starting position when released by the operator, whereby said first named memher may be actuated to provide a relatively rich mixture in varying quantities.

5. In an apparatus for supplying explosive mixture to an engine, the combination of a carburete-r, a throttle valve therefor, an auxiliary air inlet, a valve for said auxiliary air inlet, means for holding said valve closed against thesuction of the engine, a member actuated by the operator, devices operated by said member for controlling the throttle valve for supplying the engine with a relatively rich mixture in varying quantities for starting and for slow running, a second member actuated by the operator, and deair inlet, means for holding said valve closed against the suction of the engine, a member actuated by the operator, devices operated by said member for controlling the throttle -valvefor sup lying the engine with a rela tively rich mixture in varying quantities for starting and for slow running, a second member actuated by the operator, devices operated by said second member for positively opening the auxiliary air inlet valve and the throttle valve for supplying'a relatively lean mixture to the engine in varying quantities for fast running, said last named means being constructed so as to permit the throttle valve to be opened in advance of the auxiliary air inlet valve, and means for automatically closing the auxiliary air in-' let valve when 'said last named means is released by the operator.

.17. In an apparatus for supplying an explosive mixture to an engine, the combination of a carbureter, a throttle valve therefor, an auxiliary air inlet, a valve for said auxiliary air inlet, means for holding said valve closed against the suction of the engine, hand-controlled mechanism for opening the throttle valve independently of the auxiliary air inlet valve, wherebya relafor, an auxiliary'air inlet, a valve for said auxiliary air inlet, means for holdin said valve closed against the suction of t e eni gine, hand-controlled mechanism for opening the throttle valve independently of the auxiliary air inlet valve, whereby a relatively rich mixture is supplied to the engine in varying quantities for starting and for slow running, and pedal-operated mechanism for controlling the auxiliary valve.

and the throttle valve for diluting said rich mixture into a relatively lean mixture for supplying the same to the engine in varying quantities for fast running, said last named mechanism being constructed so as to permit the. throttle valve to be opened in advance of the auxiliary air inlet valve by the hand-controlled mechanism.

9. In an apparatus for supplying an explosive mixture to an engine, the combination of a carbureter, a throttle valve therefor, anauxiliary air inlet, a valve for said auxiliary air inlet, means for holding said vali'e closed against the suction of the engine, hand-controlled mechanism for oper-,

ating the throttle and pedal-controlled mechanism connected to the auxiliary air inlet valve for positively operating the same, and devices actuated by the auxiliary air inlet valve mechanism for opening the throttle for supplying a'relatively lean mixture in varying quantities for fast running.

- In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this 26th day of April 1917.

JOSEPH PERCY REMINGTON.

Witnesses: i

JAMES H. BELL, E. L. FULLERTON.

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