Engine and cylinder with gas exchange through the cylinder wall
AssigneeMahle Koenig Kommanditgesellschaft GmbH & Co. KG
InventorFranz J. Laimboeck
Life of this patent
Estimating the term…
Abstract
An engine cylinder with a piston and at least one, preferably two or four, cam-operated valves leading to the combustion chamber. A valve seat of the valve is formed in the cylinder wall immediately laterally adjacent to the cylinder bore or to the cylinder chamber. The valve axis and the cylinder axis enclose an acute angle A of 5°≦A≦25°, preferably 10°≦A≦20°. The axis of the inlet channel or the outlet channel leading to the valve seat in a plane defined by the valve axis and the cylinder axis is inclined at an angle B of 25°≦B≦65°, preferably 40°≦B≦50° to the valve axis.
Claims19
An engine cylinder, comprising:
- a piston and at least one cam-controlled valve leading into a combustion chamber, wherein a valve seat of the valve disposed at an end of an inlet channel or outlet channel is formed laterally in a cylinder wall immediately adjacent to a cylinder bore or a cylinder chamber;
- a valve axis and a cylinder axis, in a projection view, enclosing an acute angle A of 10°≦A≦20°;
- and
- the inlet or outlet channel including a straight section leading to, and ending directly at, the valve seat of the valve, an axis of the straight section of the inlet channel or outlet channel leading to the valve seat being inclined at an angle B of 25°≦B≦65° to the valve axis;
- and
- the straight section having a length corresponding to 1 to 5 times a diameter thereof and being averted away from the cylinder wall.
Dependencies are inferred from the claim text.