DE2624050A1 - IC engine with divided compression spaces - has rotating gas flow produced by two opposite located compression zones - Google Patents

Abstract

The piston crown has an upwards slanting (12) projection on one side. The cylinder head is (10) correspondingly slanted at approximately 15 degrees on the same side. The combustion hamber is bordered by the inlet valve face (4) the cylinder head arch (11) and the piston crown. The piston surface and cylinder head form two compression gaps at TDC. The charge is pressed from the first compression gap, formed by the slanting surfaces (10, 12) passes the valve face (4) onto the cylinder head arch (11) and deflected back by the charge from the second compression gap (8). The gas flow is then deflected again by the first compression gap projection (9) to produce a rotating flow in the combustion chamber. The spak plug is pref. located between both valves.

Description

DR.-ING. G. RIEBLING 2674050 PATENT ADVOCATE

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Renrn-rlt? 10 P.O. Box 31P0

May 26, 1976 ^Bl " ^e " Dr.hcDipl.Ing. Paul August, Barcelona / Spain

Internal combustion engine with one or more pinch gaps between the piston and cylinder head and deflection means in the combustion chamber through which one or more rotating flows generated in the cargo - addition to P 26 19 275.6-

The present invention relates to an internal combustion engine with one or more pinch gaps between the piston and cylinder head and deflection means in the combustion chamber, by means of which one or more rotating currents are generated in the charge (add to P 26 19 275.6).

The main application relates to a method and an internal combustion engine to improve the mixture formation in a compact combustion chamber, especially for four-stroke engines to achieve a Combustion process with very low proportions of CO, HC and NOx and at the same time lowering the consumption of the gasoline engine to the values of a diesel engine.

709849/04 1 2 " ² "

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In the present invention, there is a further improvement in that the piston head is now through corresponding recesses and the arrangement of pinch gaps is used to generate the rotating charges. This has the advantage that the valves are not changed, especially if the valves are designed to rotate, otherwise disadvantages arise.

The invention is illustrated in the drawing and the description. Further features of the invention emerge from the drawing and the description.

In the working cylinder 1 is the piston 2, which is on one side an increase with an inclined upper edge 12 and a Has nose 9. The valve 4 forms with its plate part of the upper limit of the combustion chamber 5. With the same The lower edge Io of the cylinder head runs at an angle of about 15 3 to one side.

On the other hand, the cylinder head forms an arc 11 downwards near the valve and forms the higher transverse side of the Combustion chamber 5. The lower part of the combustion chamber forms the top of the piston 2. The other, lower transverse side of the Combustion chamber is formed by the nose 9 of the piston.

Outside the combustion chamber form close to top dead center Two squishy gaps in the piston movement. One is formed between the piston surface 12 and the cylinder head surface Io. The charge

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becomes from this gap in an oblique direction upwards on the valve plate pressed past on the opposite, rounded transverse wall of the combustion chamber. There the flow is deflected and meets the charge flowing out of the gap 8. With this, a flow to the left takes place on the piston surface, which is deflected again at the piston nose 9.

An essential feature of the invention is that from two straight flows from the opposite pinch gaps one rotating flow arises in the combustion chamber.

The spark plug έ is either on the transverse wall 11 or even better arranged between the two valves somewhat in the direction of the surface Io of the cylinder head.

The drawing is a section through the center of the cylinder in the piston part and a section through the center of the valve part Valve. Both valves are arranged in the upper part of the combustion chamber 5.

The combustion chamber is compact and has proven to be very economical shown. According to the invention, it also corresponds to claims 1 and 2 of the main application.

Claims

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Claims (5)

2674050 P_a ten t_a η s_g odor 1. Internal combustion engine, in the area of the upper compression path of the piston by the formation of one or more pinch gaps between the piston and cylinder head and through deflection means in the combustion chamber one or more rotating flows in of the charge are generated (addendum to P 26 19 275.6), thereby gekennzei chnet that with a combustion chamber with diagonally positioned valves one transverse side of the combustion chamber (5) through a nose (9) protruding from the piston (2) is formed. 2. Internal combustion engine according to claim 1, characterized in that a gap between pistons and cylinder head between equally inclined surfaces of the cylinder head that are almost in contact at the top dead center of the piston movement and the piston is formed. 3. Internal combustion engine according to claim 1, characterized characterized in that the lower edge of the valve plate and the surface (lo) of the cylinder head approximately or form a very long line. 4. Internal combustion engine according to claim 1, characterized in that the two transverse surfaces (11) and (9) the combustion chamber is designed as a circular arc or deflection surfaces are. 709849/0412 -5- __. ". ,, *, INSPECTED 2674050 5. Internal combustion engine according to claim 1, characterized in that the inclined gap (7) opposite gap (8) is not arranged obliquely. 7098 4 9/0412