Internal combustion diesel engine
AssigneeVolkswagenwerk Aktiengesellschaft
InventorHans-Jurgen Schafer
Life of this patent
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Abstract
An internal combustion diesel engine has a fuel injection means for injecting fuel directly into one or more combustion chambers. Each combustion chamber has a first air-intake duct for supplying air to the combustion chamber, which first duct is designed as a swirl duct. A second air-intake is associated with each combustion chamber and is connected in parallel with the first duct for supplying an increasing quantity of substantially swirl-free air to the combustion chamber in response to increasing engine speed.
Claims6
In an internal combustion diesel engine having at least one cylinder having a combustion chamber, a fuel injection means for injecting fuel directly into the combustion chamber of each said cylinder, each said combustion chamber having a first air-only intake duct means for supplying air to said combustion chamber for combining and mixing with said fuel only in said combustion chamber, wherein said first duct means is designed as a swirl duct, the improvement comprising a second air-only intake duct means associated with each said combustion chamber and connected in parallel with said first duct means, for supplying an increasing quantity of substantially swirl-free air to said combustion chamber in response to increasing engine speed, said swirl-free air combining and mixing with said fuel also only in said combustion chamber.
Dependencies are inferred from the claim text.