DE1526338A1 - Combustion chamber in carburetor engines, especially four-stroke engines - Google Patents

Description

Applicant: α 2.12.I960

Trucks and engines

Z 1 dew / Sa.
Unit Street 29

Inventor:

Karl-Heinz Klaus

Dittelsdorf / via Zittau ITr. 26th

Combustion chamber in carburettor engines, especially four-stroke engines

The invention relates to a viauna-shaped combustion chamber Carburettor engines, especially four-stroke engines, which in ' a cylinder head with hanging valves and alternating inlet and outlet channels is arranged.

There are pan-shaped distillery in cylinder heads of carburetor engines are known. The floor areas of these bunkers are in their width either parallel or inclined to the sealing surface of the cylinder head, vjobei the valves perpendicular to the bottom surface of the Burning gaps stand. The side walls of these combustion chambers are standing at their longitudinal edges either vertically or in a blunt one 'Jinkol sur floor area.

Loi of a well-known embodiment of this firing room, in a cylinder head with led out to the same 3 side Anaaug- and outlet channel is the bottom surface of the combustion chamber Arranged at an angle of approx. 8 ° on the sealing surface . The eiuixili dio inclined position of the Brenj room floor resulting Broad office Sc-itenyjand des Bromirauues is located in the tip V / inkel and dio scxioälere SeiteneiiiJand about perpendicular to the Tight surface. The side walls of the furnace form thereby e i: va dia iürtsetzmig des intake b ^ vi. Outlet duct. the Preferred flow during intake therefore also runs in the combustion chamber vieiLüi · in the hichfcung of the intake duct and it Tiird An optimal cylinder fulfillment can be achieved The process occurs when the burnt gases are expelled »

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The Cjuet sens turbidity aur iirsielung a y / iruelung the 'J-use Ι: · ι Combustion chamber, to counter the tendency to knock, unlocks at this Breiinraura in the usual Vieiso arid os no stronger ^ ir ^ al'ing at the sections αβ3 Lsromiraurr.ea to record, at vielchsii the knock its exit ni:; iut.

This box ^ 'liuäji'-iOiJi'en;: iit nac: i der ^ elo-βι- ueii; e -.OrUUa ¹ -stirred Ansau ^ - and Auüla21: analen gimati ^ ö ^ ro: mraj..iiforni, VJ In the case of cylinder heads with vjocnaeiseiti ^ n.avs :: iügc ± - honored channels, there are! laughable parts because! 3 ontvjuaor i, oi ... Aasau ^ on odor when ejecting the J-ase a J._ilem: an, j dor Stroiziung orfol ^ exi: the filling or emptying of the cylinder must be influenced.

The invention is based on the structures iie rcrni 0. ^ n vianneuarti ^ en Lrera-raa-ws in ^ ylinderiCu ^ fen ..lit ^ oc ^ ei ^ oitig her executed l'iin- and Aasla okanulen 30 zx _o ea fold _f da3 on the one hand other ötröuunjsvorhaftnia ^ e boia ^ aau ^ en des G-eiiiiGches and ejections dor verorannton ii-aaü, but on the other hand also a great Kloi> f strength eri'ülox-t v.

According to the invention, the object is achieved because ": lie Brennrauiii-Seitenvjände in the area - the ^ iß ^ -juachui ^ -iaa Intake duct bsv). Outlet duct in the üreimi'u ^ i '^ va Ixe tangential continuation of the curve outside ICaaalw'üe uilden. The angular deviations of the Brennrai ^ ii-öeiLenr .'-. NdG from the vertical to the squeeze bottle decrease J.a ;; ei to the other side of the combustion chamber.

By reading the task according to the invention There will be an 'improved fall of the cylinder at iu Ai-saugon of the G-emic and also an improved emptying range of the cylinder when expelling the burnt gases. In addition, the better ", rotation of the '; -e.ai30hes

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in the two outer sections dos Bi-Gnnrkuuea the knock resistance of the internal combustion engine and, especially in air-cooled machines, a better temperature compensation between the air inlet and outlet side of the Bremirauuno3 ·

The invention will hereinafter an.einem n ^{Aasfohrungsbeispiol.} Lher be explained. Rope in the corresponding drawing:

the view of the Brennrau; -; eo in IUchluug the Cylinder axis seen,

the section A-A leading through the combustion chamber of AriGaughubea,

the Sciinitt A-A through the combustion chamber during the compression stroke,

the Sciinitt B-B through the combustion chamber during the compression stroke,

the section B-B through the combustion chamber 7J ' the extension stroke.

In Fig. 1 the Brennrauinforu and the x, r.ge of the inlet valve 1, the A \ iSla.3ventiles 2, the _t ; ündkc-r «; e 3 and of the Brennrauiübodens 4 see below.

The largest angular deviations of the side walls 5, vol. the perpendicular to the squeeze joint 6, form the continuation of the curved outer ducts of the intake duct 7 and the outlet duct a B (Fig. 2 and i). The suction during suction then continues in the Erennraoza in the direction of the suction duct 7 and sorbit sorbit the cylinder surface. (Fig. 2)

The problem of this process occurs when the

Fig. 1 Fig. 2 Fig. 3 Fig. 4th Fig. 5

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Cylinder roaring the extension stroke. (Fig. 5) Fig. 3 shows the flow ratio under the inlet valve 1 at the Yerdichtungahub. During the upward movement of the piston, the fuel-air mixture is drawn out of the gap shortly before reaching top dead center between piston 9 and squeeze surface 6 pushed out.

As a result of the pinch area cutout (FIG. 1) that is twisted with respect to the connecting line of the valves 1; 2, pinch gaps of different lengths and, consequently, pinch lines of different strengths arise in the vicinity of the valves 1; 2. The longer pinch gap is opposite the most inclined sections of the combustion chamber side ^{walls 5, so that the stronger pinch flow w} a ^w penetrates until the bottom of the cylinder, through which the weaker pinch flow "b" ax of its larger component is erected in the direction of the cylinder axis and into one V. vortex with etv; a is converted at right angles to the cylinder axis of rotation . The same process, but with the opposite direction of rotation of the ', / irbol3, occurs during the compression stroke in the cage of the outlet valve 2. (? ig.4).

BATH ORIGINAL

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Claims (1)

ε Claim. Tub-shaped cavity with carburetor engines, especially four-stroke engines! which is arranged in a cylinder head with hanging valves and alternating inlet and outlet ducts, characterized in that the 3 sides (5) of the combustion chamber in the area of the opening of the intake duct (7) and the outlet duct (8) into the Combustion chamber approximately form the edge continuation of the outer duct walls, whereby the Y-angle deviations from the perpendicular to the quenched target area (C) after the other side of the combustion chamber constantly decrease. 1 sheet of drawings 909886/0511 Blank page