DE1722945U - CARBURETTORS FOR COMBUSTION ENGINES. - Google Patents

Description

SOJLHX, Sooiate * a responsabilitd limit ^ o, Neuillj s / Seine

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Carburettors for internal combustion engines.

The hiring concerns the carburettors for internal combustion engines and aims in particular to reduce the influence of the so-called "percolation phenomena", which in numerous cases have serious disadvantages, especially with downdraft carburetors ^

These phenomena occur in particular when the engine is shut down when it is very hot, and consist in the formation of τοη Daapfblasen in the liquid fuel contained in the channels of the carburetor. These bubbles try to escape, entraining fuel which eventually reaches the main injection system and falls into the inlet line. At the same time, the increase in the temperature of the fuel contained in the carburetor causes the formation of Daiapf, which is connected to the main air inlet of the carburetor in carburetors, float tanks,

46c *, 40. 1722945. SOLEX, Sociit * ä «sponsabilitfe linütie, Nemüy-sur-Seine tFtankrciA) _L Represent .: Dr. £ Z ^ stein, Pat.-Anw-, Mündicn 2. Γ g for internal combustion engines _. ^η ·, £ S 16481. France 22. 7. 54. CT.

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enters this main air inlet. This has an exaggerated * Enrichment of the Gesisohs supplied to the carburetor Consequence, which considerable difficulties when restarting the hot engine and even operational irregularities la Slow running caused.

The increase in temperature of the liquid contained in the gasifier is mainly due to the conductivity the carburetor itself. This receives heat τοη the Inlet line, "generally calibrate for your part τοη der Aus" is heated.

In this case this arm τοη of its source formed by the exhaust pipe reaches the carburetor and gradually spreads in the walls of the tank and the fuel channel, whereby the above effects arise.

Another factor in the warming of the carburettor is the radiation from the hot parts of the engine, but this factor is significantly less important than the one mentioned above, since in most modern engines the inlet pipe is very strongly heated, so that the heat input through thermal insulation is greater than that Supply by radiation is

This heat rises from that in the case gasifiers the hottest part at the foot to the coldest part, which is the air inlet.

Hun are used in almost all downdraft gasifiers today the Sehwiamar container and the different channels

ä responsabilite limitec, Neuilirsur- j

Seine ^ France); Vertr.:,Dr.F. Ζωη- ^ _MA , ^ ₅ J ■

stein, Pat.-Anw., Munich 2., I Vergaß

for combustion engines. . · "· _ * ·" ·

S 164SI. France 22. 7. Si. &. 10; _u _

time old poured the vertical body, which combines the foot part and the air inlet with each other so that, when propagation of the f? Slee it enters rapidly into the walls of the float tank or fuel channels in the lower part of the gasifier, whereby the Perkolatlonsarscheinungen arise ·

According to the innovation, in such carburetors there is now a main channel which, at its downstream end, is the part for connection to the inlet pipe Engine is deceiving and the throttle element of the carburetor and possibly a Venturi tube contains, on the upstream inde of this channel a part of Torgesebon, which is expediently put on and in two separate arrangements lying apart from each other, which are in no direct contact with this channel, on the one hand the float tank and on the other hand at least part of the for the Carburetor necessary parts, so that the heat entering the carburetor through the connection cable only after passing through the upstream part of the main channel flows through the walls of the vessel and at least one of them Part of the parts required for gasification can be achieved by conduction.

The innovation is explained below by way of example with reference to the drawing.

Fig. 1 shows in an axial section along the line I - I of Fig. Z an exf innovation according to FalistromTer-

46c * 40. 1722945. SOLEX, Sod «* i responsahilit * limitfe. Neuilr ^ sur-Seine (Frankreidi); Vcrtr .: Dr. .F. Zumstein, Pat.-Anw .. Mündben 2., l · Vcrga ^ r for internal combustion engines _. "· ■■ * ·, 'J ⁵ /. S 164Sl. Frankreidi 22. 7. 54. CT- ¹⁰ I Z. 2 }

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2 iet a view of the same length of carburetor Trean level II - II of Fig. 1,

3 and 4 are sections along the linie.III - III of FIGS. 2 and IV - IV of FIG. 1.

Finally, Fig. 5 is a side view of the same Carburetor

The carburetor consists, as usual, of the union of a vertical, essentially tubular body I ₁ which forms the air inlet and at its downstream (lower) end has the flange 2 for connection to the inlet line of the engine and contains the throttle element 3 and the usual Venturi tube 4 , with a bucket 5 and a certain number of devices for filling the various tasks of the carburetor (for normal operation, slow running, starting in cold condition, accelerations, etc.).

However, instead of combining these various components into one block su, according to the innovation, on the one hand, the Float tank and on the other hand at least part of the Parts required for gasification are designed so that they are different and separate both from one another and from the vertical body 1.

For this purpose, on the upstream (upper) At the end of the body 1 an attached part β is provided, which contains the main air inlet of the carburettor and on its lower part, i.e. in a hanging down position at least part of the above required for gasification

46c ⁹ , 40. 1722945. SOLK, Soa «4 k responsabilit * limitte ,; Neuilles sur-Seine (France); Vertr.rDr.f Zamstein, Pat.-Anw _n Munich 2., | ^ crgast for internal combustion engine c. ; 13. 4- "55. S 16481. Frankreidi 22..7.51 (T .; 10;

24 MAY Wi I!

all devices (and preferably all of these devices) as well as the safety container he can carry himself, in which case the devices and the float tank are independent of one another and a τοη removed from the body 1 Take a position so that the noise entering the carburetor through the flange 2 is the amount required for gasification Parts and the float tank 5, which are carried τοη the attached part 6, can only be reached by conduction after they have risen along the body 1 and afterwards flowed back down to these parts and the float tank

The above arrangement can be realized in various ways τ. No advantageous embodiment is on shown in the drawing.

Thereafter, the body 1 is formed from two parts lying one above the other, the lower part 7 by one Axis 8 pivotable throttle member 3 carries.

Between this lower part and the upper part of the body 1, in which »the Vonturi tube 4 is housed, a seal 9 is arranged.

The attached part 6 is formed so that he with the interposition of a seal 10 at the upper end of the body 1 can be attached. This attached part contains in the axis of the body a vertical tubular part to form the air intake of the carburetor.

The attached toilet is also a kind of side Plate 11, which, as further under aasführung, the

46c ³ , 40. 1722945. SOLEX, Sod "* 2" responsibility limitee, Neuür £ sur-Seine (France); Represent .: Dr, F. Zam-PA Müh 2 | Forgot

Seine (France); Representative: Dr

stein, Pat.-Anw., Munich 2, | Forgot

for combustion engine ^ 13. 4. 55.

S 16481. France July 22nd, 54th (Γ. 10;

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l and the hanging part for the float tank 5 forms.

The system is formed, for example, by a tubular outlet 12 which connects to the top of a chamber is connected, "oak is attached to the underside of the plate 11 with the interposition of a seal 14. The 3θ Kamrcer stands at its lower part with the bottom of the He holds swimmers 5 through a calibrated opening 15 and communicates with the air through a series of side holes in a drill hole 16, which at its upper part with a calibrated opening 17 opening into the main air inlet of the carburetor is provided.

In such a known device, the level in the chamber 13 is in the rest position at the level of the constant level of the float tank if the negative pressure occurs in the venturi tube 4, he acts on the side openings of the Hohres 16 and lets the fuel contained in the chamber 13 rise up to this · At the same time Ma ft enters through the opening 17 and the pipe 16 and passes through the lateral ones Holes in the pipe or through the lower opening of the same. The air therefore mixes with the fuel, so that finally a gasified mixture emerges through the outlet (12).

The device for the Langsaralauf is through a Channel 18 is formed, which leads a mixture behind the throttle valve 3, which from a calibrated opening

46c ', 40.1722 W5. SOLEX. ; Soa «4 h responsahilitfc limitfc, Nctull ^ sur-Seine (France); Veitr .: Όχ.Χ Zamstein , Pat.-Anw-, MfinAcn 2-v | _V «ga ^ for internal combustion engines. . _ 13. * -, 53-S 164β1. France July 22, 54 (T,: 10;

2 *. MAY1355

Air and fuel flow through a channel 20, the entirety of this device (with the exception of the part of the channel 18 following the nana of the upper part of the body 1) φπ of the side plate 11 being carried.

The side plate also carries an acceleration pump at the bottom 21 (which is assumed here as an example, that it is a diaphragm pump), which is actuated by a rod 22, which by a rocker 23 after can be pressed down to cause an additional fuel delivery when the throttle member 3 in seal is adjusted to its fully open position.

All parts necessary for the gassing are so at the side plate 11 of the attached part 6, or are supported by this

Furthermore, according to the invention, the vessel of the float tank 5 and the Float 24 to keep the level constant and the needle valve 25 controlled by the float is suspended, with a Seal 26 between the vessel of the Sohw imine rbehälters and the plate 11 is arranged.

Finally, in the attached part 6 of the Passage 27 placed, which the upper part of the Schwiffiserbehälters 1 in connection with the main air inlet of the carburettor be.

46c ³ , 40. 1722945. SOLEX, Sod «* a responsabilite limitie, Neuilly-sur-Seine (France); Verb · .: Dr. F. Zumstein, Pat.-Anw, Munich 2. | , Carburettors for internal combustion engines. 13.4.55. S 164 & 1. France July 22, 54 (Γ. 10; line 2};

Ζ ¹ ». MAY 193

The mode of operation of the carburetor according to the innovation is clear from the above & among other things.

Obviously this carburetor has the advantage that it is much less sensitive than today's carburettors for increasing the temperature of the part (inlet line) to which the flange 2 is attached of seals (in particular the seals 9 and IG) flow through to get to the attached file 6. Only afterwards can this heat flow to the tank 5 and the essential parts of the carburetor, where it again encounters obstacles formed by seals (eg the seal 26) which are arranged between the attached part and the parts suspended from it . The passage of the heat coming from the inlet pipe of the engine to the fuel-containing parts of the gasifier is effectively prevented.

As an additional precaution, the vessel can still be used of the float tank 5 from a poorly thermally conductive Material, e.g. a synthetic resin. In this way, it is already counteracted by heat conduction Protected swimmers also against radiant heat protected.

Incidentally, this radiation shield2 can be enlarged by placing a shield ZH between the SchwiniBierb © -

container 5 and the most sacred part of the k'otor (exhaust pipe) is arranged.

Claims (3)

46c3, 40. 1722945. SOLEX, Sod «* a responsahilite limitee, Neuilry-sur-Seine (France); Rep .: Dr- ^ F. Zumstein, Pat.-Anw., Munich 2. J Carburettors for internal combustion engines. 13.4.55. S 164β1. Frankreidi July 22, 54.0 "· 10; line 2} claims for protection. 1. Downdraft carburetor for internal combustion engines with a at its lower (downstream) end the part for connection to the Sinlaßlsitung of the motor and having the throttle element of the carburetor and, if necessary, a main duct containing a venturi tube, characterized in that » that he has this at the upper (upstream) end Channel has an attached part, which in two spaced apart arrangements which are in no direct contact with this channel, on the one hand the Schwimmerbohfiltar and on the other hand at least one Part of the parts necessary for the gasification carries, so that the entering the carburetor through the connector Tiarms only after £ ur cn a tr cinen upstream Part of the main channel are the walls of the tank and can reach at least some of the parts required for gasification by conduction. 2 · Carburetor according to claim 1, characterized in that that the attached part (6) has a side panel (11) has, soft the lid and the suspension member for the Float tank (5) and at the same time the suspension element for forms the essential parts for the gasification. 3. Carburetor according to claim 1 and 2, characterized in that the side plate (II) also includes the needle valve (255 and carries the Sehsimssir (24) of the Schwiarssrbehältere (5). > 40. 1722945. SOLEX, Sodfctt a responsabili «Ümitte, Nettilly-iur-Seine- (France); Vertr.i Dr. F. ZmasteJn, Pat.-Anw., Müodien 2., I Carburetors for combustion engines. 13Γ 4. 55, S 164 & 1. .France 22. 7. 54. &, 1Or Z.2> MAY 1953 4 · Carburetor according to claim 1, characterized in that that the lateral plate (11) forms the suspension element for an operating puiape (21) arranged inside the vessel of the Schwiaaerbehältern.