Internal-combustion engine with predominantly swirl-free air inflow into a shallow combustion space
AssigneeMercedes-Benz AG
InventorUlrich Augustin
Life of this patent
Estimating the term…
Abstract
An internal-combustion engine has predominantly swirl-free air inflow into a shallow combustion space. A centrally arranged injection nozzle with preferably eight spray holes projects into the combustion space. The nozzle has a piston with a piston recess. Depressions are formed in the recess bottom of the piston recess and correspond to the number of injection jets. The depressions extend from the center of the piston in the direction of the injection jets, are matched to the jet shape and have a corrugated shape in the circumferential direction of the piston recess.
Claims7
An internal-combustion engine with predominantly swirl-free air inflow into a shallow combustion space, comprising a piston, a centrally arranged injection nozzle with a plurality of spray holes, and depressions formed in the piston and corresponding to the number of injection jets and which, starting from a central portion of the piston, extend in a direction of injection jets from the nozzle and are substantially matched to a shape of the jets, wherein the piston has a shallow piston recess, and the depressions are formed in a bottom of the recess such that the depressions have a corrugated shape circumferentially of the piston recess.
Dependencies are inferred from the claim text.