Diesel-type piston engine and a method for controlling a diesel-type piston engine
AssigneeVolvo Lastvagnar AB
InventorsUlrich GOBERT, Daniel GRUNDITZ
Life of this patent
Estimating the term…
Abstract
A piston engine and a method for controlling a diesel-type piston engine including at least one combustion chamber formed by a cylinder. A movably arranged piston is provided in each cylinder is connected to a crankshaft. An injection device is provided that is configured to inject fuel directly into the combustion chamber. Thermal efficiency of the internal combustion engine can be increased while at the same time requirements relating to nitrogen oxide and soot particle emissions can also be maintained.
Claims47
A method for controlling a diesel-type piston engine having at least one combustion chamber formed by a cylinder (52) and a movably arranged piston (53) in each cylinder and are connected to a crankshaft (54), and an injection device (56) configured to inject fuel directly into said combustion chamber, said method comprising:
- injecting fuel from said injection device (56) for a specific injection time less than 0.12 crank angle degrees/(bar×m/s) while within an operating range for the internal combustion engine at an engine load greater than 7 bar BMEP.
A diesel-type piston engine comprising at least one combustion chamber formed by a cylinder (52) and a movably arranged piston (53) in each cylinder and said are pistons (53) are connected to a crankshaft (54), and an injection device (56) configured to inject fuel directly into said combustion chamber, said injection device (56) being configured to have a specific injection time less than 0.12 crank angle degrees/(bar×m/s) within an operating range for the internal combustion engine at an engine load greater than 7 bar BMEP.
Dependencies are inferred from the claim text.