Mixture compressing internal combustion engine with swirl inflow and external ignition

Claim 2

A mixture-compressing internal combustion engine with cylinder walls, with a cylinder head and with rotating inflow and external ignition of the mixture, characterized in that each cylinder includes a working piston which is offset along the outer circumference of its top and also within the area of its top land to form with the cylinder walls and the cylinder head a combustion space endless in the peripheral direction thereof, and ignition means arranged in the cylinder head within the radially outer area of said endless combustion space with respect to the cylinder axis.

Claim 3

An internal combustion engine according to claim 1, characterized by valve control means for the internal combustion engine.

Claim 4

An internal combustion engine according to claim 1, characterized in that the working piston, in addition to the endless combustion space, is provided with an essentially axial piston recess means.

Claim 5

An internal combustion engine according to claim 2, characterized in that the endless combustion space is enlarged radially outwardly thereof at the places of valve discs projecting beyond the piston cross-section by two substantially oppositely disposed recess means of the working cylinder.

Claim 6

An internal combustion engine according to claim 4, characterized in that the two recess means are combined by way of radially narrower recess portions of the working cylinder into an approximately elliptical endless space, offset outwardly with respect to the cylinder bore and, in the top-dead-center position of the working piston, outwardly adjoining the endless combustion space thereof.

Claim 7

An internal combustion engine according to claim 5, characterized in that the axial plane extending in the direction of the two recess means of the working cylinder is at the same time a cross plane of an in-line engine.

Claim 8

An internal combustion engine according to claim 6, characterized in that the working cylinder is provided with two ignition means which are arranged substantially diametrically opposite to the cylinder axis.

Claim 9

An internal coMbustion engine according to claim 7, characterized in that the two ignition means are arranged in an axial plane which is displaced with respect to axial plane extending through the two recess means by about 35* to 45* opposite the direction of rotation of the inflowing mixture.

Claim 10

An internal combustion engine according to claim 8, characterized in that the working piston, in addition to the endless combustion space, is provided with an essentially axial piston recess means.

Claim 11

An internal combustion engine according to claim 4, characterized in that the axial plane extending in the direction of the two recess means of the working cylinder is at the same time a cross plane of an in-line engine.

Claim 12

An internal combustion engine according to claim 10, characterized in that the working cylinder is provided with two ignition means which are arranged substantially diametrically opposite to the cylinder axis.

Claim 13

An internal combustion engine according to claim 11, characterized in that two ignition means are arranged in an axial plane which is displaced with respect to axial plane extending through the two recess means by about 35* to 45* opposite the direction of rotation of the inflowing mixture.

Claim 14

An internal combustion engine according to claim 1 characterized in that the working cylinder is provided with two ignition means which are arranged substantially diametrically opposite to the cylinder axis.

Claim 15

An internal combustion engine with a longitudinal axis according to claim 13, characterized in that the two ignition means are arranged in an axial plane which is displaced with respect to an axial plane extending transversely to said longitudinal axis by about 35* to 45* opposite the direction of rotation of the inflowing mixture.

Claim 16

A mixture-compressing internal combustion engine with cylinder wall means, with a cylinder head and with a rotating inflow of a fuel-air mixture and external ignition of the mixture within a combustion chamber, comprising at least one cylinder means including one working piston means therewithin, said piston means being provided with offset means along the outer circumference of its top to form with the cylinder wall means and the cylinder head a combustion space endless in the peripheral direction thereof, the portion of the top of the piston means adjacent the offset means which delimits the combustion space radially inwardly thereof, closely approaching the bottom surface of a cylinder head means so as to substantially close off said endless combustion space in the radially inward direction with respect to the cylinder axis, and ignition means for the fuel mixture in said endless combustion space, said ignition means being located in the cylinder head means within the radially outer area of said endless combustion space with respect to the cylinder axis.

Claim 17

A mixture-compressing internal combustion engine with cylinder wall means, with a cylinder head and with a rotating inflow of a fuel-air mixture and external ignition of the mixture within a combustion chamber, comprising at least one cylinder means including one working piston means therewithin, said piston means being provided with offset means along the outer circumference of its top to form with the cylinder wall means and the cylinder head a combustion space endless in the peripheral direction thereof, the portion of the top of the piston means adjacent the offset means which delimits the combustion space radially inwardly thereof, closely approaching the bottom surface of a cylinder head means so as to substantially close off said endless combustion space in the radially inward direction with respect to the cylinder axis, and ignition means for the fuel mixture in said endless combustion space, said ignition means being located in the cylinder head means within the radially outer area of said endless combustion space with respect to the cylinder axis.

Claim 18

A mixture-compression internal combustion engine according to claim 15, characterized in that the endless combustion space is enlarged in the radially outward direction so as to extend beyond the contours of the piston cross-section to provide two substantially oppositely disposed recess means.

Claim 19

A mixture-compressing internal combustion engine according to claim 16, characterized in that the two recess means are combined by way of radially narrower recess portions provided in the cylinder means so as to form an approximately elliptical endless space, offset outwardly with respect to the cylinder bore, said elliptical endless space adjoining the endless combustion space formed by said piston means in the top dead center position of the latter.

Claim 20

A mixture-compressing internal combustion engine of in-line construction, according to claim 16 characterized in that an axial plane extending in the direction of the two recess means is disposed substantially transversely to the in-line engine.

Claim 21

A mixture-compressing internal combustion engine according to claim 16, characterized in thAt two ignition means are provided in the cylinder head means, one ignition means each being located within the area of a respective recess means.

Claim 22

A mixture-compressing internal combustion engine according to claim 15, characterized in that the piston means is provided with a piston recess means within the axial area thereof, said piston recess means being substantially separated from said endless combustion space by said piston top portion in the top dead center position of the piston means.