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Número de publicaciónUS2221405 A
Tipo de publicaciónConcesión
Fecha de publicación12 Nov 1940
Fecha de presentación10 Ene 1938
Fecha de prioridad11 Ene 1937
Número de publicaciónUS 2221405 A, US 2221405A, US-A-2221405, US2221405 A, US2221405A
InventoresNallinger Fritz
Cesionario originalDaimler Benz Ag
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Internal combustion engine
US 2221405 A
Resumen  disponible en
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Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

Nov. 12, 1940. F. N ALLINGER INTERNAL COMBUSTION ENGINE Filed Jan. 10, 1938 Jnrenlar 15 of higher anti-knock value.

Patented Nov. 1940 INTERNAL COMBUSTION ENGINE Fritz Nallinger, Stuttgart, Wurttemberg, Germany,

assignmto Daimler-Benz Aktiengesellschaft, Stuttgart-Unterturkheim, Germany Application January 10, 1938, Serial No. 184,175

Germany January 11, 1937 21 Claims.

This invention is concerned with internal combustlon engines in whichan increased torque can be obtained temporarily by the aid of a blower or charge booster generally known 'as a supercharger. In such engines, when a certain degree of compression or charging is exceeded, fuels of relatively low anti-knock value are liable to produce knock. This particularly applies to mixture-compressing engines, or Otto cycle engines,

working with a carburetter or withfuel injection into the cylinder.

The principal object of the present invention is to provide for the additional supply to the engine, when the charging is increased, of a fuel For this purpose,

a main fuel pump may operate continuously for the supply of fuel having a low anti-knock value,

an auxiliary fuel pump being provided for supply' of the fuel of higher anti-knock value.

2 The additional fuel may be a spirit, or a mixture containing ahigh percentage of spirit. Such fuel may be injected in appropriate quantities into theinduction passage, either in front of or beyond the blower and at one or more points, such injection being performed through suitably calibrated jets.

Several advantages are achieved by the invention in practice. First, a substantially higher degree of compression or charging without knock is possible. Second, additional injection of fuel,

particularly spirit, relieves the engine materially 45 craft engines, is important.

The annexed drawing illustrates one practical example and therein; l

Figure l is a sectional side elevation of an en- 50 gine adapted for operation in accordance with these improvements; and

Figure 2 is a transverse section through the upper partof one of the cylinders.

Figure 1 illustrates a block of four cylinders 55? and in Figure 2 a is one of the cylinders with inis ablower 5, Figure 1, mounted on one end of The j together. backs at starting, particularly in the case of airlet valve b and exhaust valve 0. Fuel is normally injected into the cylinder a through a nozzle d.

As seen in Figure l, the nozzles d are supplied with iuel by means of a pump e drawing from a tank I, the pump e being driven from the engine in the usual manner.'

Combustion air issupplied-to the engine at the valve 1) by an intake pipe h and on this pipe there the engine, with its impeller 57 running in a bearing 6. A shaft i geared with the crank shaft by pinions H), H runs in bearings 1 and 8 in the impelle'r and in a bearing 9 in the end wall of the crank case. One part of a clutch k is splined at [3 on the shaft i and is displaceable along the shaft by the linkage l2. The other half of the clutch is is on the impeller. Thus, by clutching or declutching the said clutch parts, the impeller is coupled or uncoupled with or from the shaft i. Instead of the dog clutch illustrated in Figure 1,

it is possible to employ a frictional or slipping clutch.

An additional injection nozzle, provided in accordance with the invention, is seen at m in Figure 2, in an elbow connection between the intake manifold h and the inlet b of the cylinder. As will be seen from Figure 1, the four similarly disposed nozzle m are connected by tubes with an additional fuel pump 0 which draws its supply from a small tank n. The pump 0 can be coupled with or uncoupled from the engine by means of a clutch p. In the example illustrated the spindle of the pump 0 is aligned with that of the pump e and the two spindles can be coupled or 35 uncoupled by the clutch p. The last-named may be operated by a clutch lever H connected by a link 16 with a pedal l5. In the said illustrated example, the link 5 is connected with the links 12 so that depression of the pedal l5 simul- 40 taneously closes the clutches p and k, whereby the pump 0 and impeller g willbe put into operation In some cases, the fuel pumps e and 0 may be comprised in a single constructional unit. I I

The operation is as follows: Normally, the clutches k and p are disengaged so that the blower 5 and additional fuel pump 0 are idle. In

this phase of operation, the engine runs on norgree of charging and compression is desired, the pedal 5 is depressed for closing the clutches la and p. Thereupon the'impeller g is driven from the engine for the production of the desired supercharging and simultaneously the additional pump 0 is driven for supplying the nozzles m with additional fuel drawn from the tank n. This additional fuel (spirit, for example) may have a high anti-knock value, so that there is an absence of knocking in spite of the higher duty which the engine is called upon to perform.

Adjustment of the output of the fuel pumps may be effected in any known or suitable manner. The quantity of fuel may also be regulated, for example, in dependence upon the clutching of the blower in such manner that the fuel is supplied to the nozzles d only up to a certain degree of regulation. When this degree is exceeded, the blower is set in operation and additional fuel is simultaneously injected. The operativeness of the additional pump may be controlled by means of a by-pass for example, instead of by means of a clutch. Thus, the additional pump may be rendered inoperative by opening its by-pass and may be brought into operation gradually or fully by an appropriate closing of the by-pass valve.

In some cases, injection of additional fuel of higher anti-knock value may be effected under hand control. Also, injection of this fuel may be affected at one or more points either in front of or beyond the blower, or even wholly or partly directly into the cylinders.

Accordingly, while I have described an illustrative embodiment of the invention, it is pointed out that various changes and modifications therein may be made without departing from the in- I vention as set forth in the claims which follow.

I claim:

1. In an internal combustion engine, in combination, a normal fuel supply means, controlled supercharging means, means for supplying a second fuel and a control adapted for rendering said last means operative in dependence upon operation of said supercharging means.

2. In an internal combustion engine, in combination, a normal fuel supply means, controlled supercharging means, a normally inoperative spirit fuel supply, and a control adapted for rendering said spirit fuel supply operative in dependence upon operation of said supercharging means. 3. In an internal combustion engine, in combinat ion, a constantly'operative normal fuel supply means, controlled supercharging means, means for supplying a second fuel, and a joint control adapted for rendering. said supercharging means and said last means either operative or inoperative in unison.

4. In an internal combustion engine having an intake manifold in combination, a normal fuel supply means, controlled supercharging means, means for supplying a second fuel connected with said intake manifold, and a control adapted for rendering said last means operative in dependence upon operation of said supercharging'means.

5. In an internal combustion engine having an intake manifold and inlet valves, in combination, a normal fuel supply means, controlled supercharging means, means for supplying a second fuel including fuel nozzles in the intake manifold between said supercharging means and said inlet valves, and a control adapted for rendering said second fuel supply means operative in dependence upon operation of said supercharging means. u

6. In an internal combustion engine, in combination, a normal fuel supply means. controlled supercharging means, means for supplying a second fuel connected with the supercharged side of said engine, and a control adapted for rendering said last means operative in dependence upon operation of said supercharging means.

7. In an internal combustion engine, incombination, a normal fuel supply means comprising jet nozzles opening into the combustion chambers,

controlled supercharging means, an additional fuel supply means, and a control adapted for rendering such additional means operative in dependence upon operation of said supercharging means.

8. In an internal combustion engine having an I intake pipe, in combination, a normal fuel supply means comprising injection nozzles delivering into the combustion chambers, a controlled blower on the intake pipe, an additional fuel supply means comprising injection nozzles in the intake pipe, and a control adapted for rendering such additional means operative in dependence upon operation of said blower.

9. In an internal combustion engine having an intake pipe,in combination, a normal fuel supply means comprising injection nozzles delivering into the combustion chambers, a controlled blower on the intake pipe, an additional fuel supply means comprising an injection nozzle delivering into the supercharged side of said engine, and a control adapted for rendering such additional means operative in dependence upon operation of said blower.

10. In an internal combustion engine, in combination, a normal fuel supply means, controlled supercharging means, means of relatively small capacity for supplying a second fuel, and a control adapted for rendering saidlast means operative in dependence upon operation of said supercharging means.

11. In an internal combustion engine, in combination, a fuel pump unit comprising a contill means, and a control adapted for rendering said intermittently running element operative in dependence upon operation of said supercharging means.

12. In an internal combustion engine, in combination, a constantly running normal fuel pump, a coaxial abnormal fuel pump, fuel delivery instruments connected with respective pumps, con-= trolled supercharging means, and a control adapted'for rendering said abnormal fuel pump operative in dependence upon operation of said supercharging means.

13. In an internal combustion engine, in combination, a normal fuel pump driven from the engine, an abnormal fuel pump clutchable with said normal fuel pump, connected with respective pumps, controlled supercharging means, and a control adapted for clutching in said abnormal fuel pump in dependence upon operation of said supercharging means.

14. Method of operating an internal combus tioin engine with supercharging, consisting in .normally supplying fuel of relatively low antiknock value for combustion, and additional supply of fuel having in effecting an a higher antiknock value during supercharging.

fuel delivery instruments 15. Method according to claim 14, consisting '15 further in continuously supplying fuel of low antiknock value for combustion and in effecting an additional supply of fuel having a higher antiknock value during supercharging.

16. Method according to claim 14, consisting further in delivering the additional fuel supply into the charging air before admission of the latter into the engine.

17. Method according to claim 14, consisting further in injecting normal fuel'directly into the cylinder and injecting additional fuelof higher anti-knock value into the charging air before admission of the latter into the engine.

18. The combination according 'to claim 1, wherein the means for supplying a second fuel includes a fuel having higher anti-knock characteristics than the fuel in said normal supply means.

19. The combination according to claim 5, wherein the means for supplying a second fuel includes a fuel having higher anti-knock characteristics than the fuel in said normal supply means 20. The combination according to claim 10, wherein the means for supplying a second fuel includes a fuel having higher anti-knock characteristics than the fuel, in said normal supply means.

21. In an internal combustion engine, in combination, a normal fuel supply means, a supercharger and driving means therefor, additional fuel supply means, and control means for con-'- comitantly rendering said additional fuel supply means and said supercharger driving means effective or ineffective.

FRITZ NALLINGER.

Citada por
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US2461580 *28 Ene 194415 Feb 1949Sol B WiczerMethod and apparatus for emulsifying fuels
US2482040 *9 Dic 194213 Sep 1949Bristol Aeroplane Co LtdSupercharged internal-combustion engine
US2495231 *22 May 194524 Ene 1950Thomas A DickeyAntidetonant flow control system
US2518291 *1 Abr 19468 Ago 1950Fairbanks Morse & CoEngine fuel control
US2685870 *30 Dic 195010 Ago 1954Gustav PielstickCentral fuel valve for internalcombustion engines
US2731792 *9 Oct 195024 Ene 1956 Means to delay fuel enrichment when
US2793629 *2 Dic 195528 May 1957California Research CorpInternal combustion engine fuel systems
US2890692 *1 Jul 195716 Jun 1959Kiekhaefer CorpFuel injection system
US3665905 *18 Jun 197030 May 1972SaviemFumigation devices for supercharged diesel engines
US3895618 *28 Jun 197322 Jul 1975Braun AntonDifferential fuel supply system for internal combustion engines
US4182294 *10 Ago 19788 Ene 1980Volkswagenwerk AktiengesellschaftApparatus for injecting fuel into a multi-cylinder internal combustion engine having a supercharging compressor
US5119780 *11 Jun 19919 Jun 1992Southwest Research InstituteStaged direct injection diesel engine
US5293846 *31 Ago 199215 Mar 1994Sanshin Kogyo Kabushiki KaishaTwo-cycle engine for an outboard motor
US5343702 *27 Nov 19916 Sep 1994Mitsubishi Jidosha Kokyo Kabushiki KaishaZeolite converter for diesel engine
US6499463 *16 May 200231 Dic 2002Kleenair Systems, Inc.Dual fuel source diesel engine
US7287492 *30 Nov 200530 Oct 2007Ford Global Technologies, LlcSystem and method for engine fuel blend control
US735710130 Nov 200515 Abr 2008Ford Global Technologies, LlcEngine system for multi-fluid operation
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US777981317 Mar 200624 Ago 2010Ford Global Technologies, LlcCombustion control system for an engine utilizing a first fuel and a second fuel
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US813255530 Nov 200513 Mar 2012Ford Global Technologies, LlcEvent based engine control system and method
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US20070119410 *30 Nov 200531 May 2007Leone Thomas GSystem and method for engine fuel blend control
US20070119413 *30 Nov 200531 May 2007Lewis Donald JEvent based engine control system and method
US20070215069 *17 Mar 200620 Sep 2007Leone Thomas GControl for knock suppression fluid separator in a motor vehicle
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Clasificaciones
Clasificación de EE.UU.123/559.1, 123/431, 123/198.00A
Clasificación internacionalF02B39/04, F02B1/08, F02B33/40
Clasificación cooperativaF02B1/08, F02B39/04, F02B33/40
Clasificación europeaF02B39/04, F02B33/40, F02B1/08