Internal combustion engine provided with a system for direct fuel injection with pneumatic assistance
OwnerLuc Philippe, Benoit Philippeinventors
Life of this patent
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Abstract
The disclosed internal combustion engine comprises a single piston compressor (13) associated to each of the combustion chambers (1), said compressor sucking an air/fuel mixture and, due to the action of its discharge strokes, injects said mixture directly inside the combustion chamber (1) at an instant which is appropriately determinated by the synchronization of said compressor (13), the discharge valve (23) of the compressor being arranged inside the combustion chamber (1).
Claims12
An internal combustion engine with one or more combustion chambers connected to an engine crankshaft, which comprises:
- a single piston type compressor associated with each combustion chamber, wherein each compressor has successive delivery strokes each of which feeds an air-fuel mixture to the combustion chamber with which the compressor is associated, and wherein the compressor has a displacement which is distinctly lower than the displacement of the combustion chamber with which the compressor is associated;
- wherein each compressor sucks via an intake pipe an air-fuel mixture and by the action of each of the delivery strokes of said compressor injects the air-fuel mixture directly into said combustion chamber through a delivery valve of said compressor placed inside said combustion chamber at the end of a delivery pipe;
- and
- wherein each compressor is timed such that its delivery stroke ends at the latest when ignition takes place in the combustion chamber with which the compressor is associated.
An internal combustion engine with one or more combustion chambers connected to an engine crankshaft, which comprises:
- a single piston type compressor associated with each combustion chamber, wherein each compressor has successive delivery strokes each of which feeds an air-fuel mixture to the combustion chamber with which the compressor is associated, and wherein the compressor has a displacement which is distinctly lower than the displacement of the combustion chamber with which the compressor is associated;
- wherein each compressor sucks via an intake pipe an air-fuel mixture and by the action of each of the delivery strokes of said compressor injects the air-fuel mixture directly into said combustion chamber through a delivery valve of said compressor placed inside said combustion chamber at the end of a delivery pipe;
- and
- means for controlling the air-fuel mixture sucked by the compressor in accordance with engine vacuum and not compressor vacuum.
Dependencies are inferred from the claim text.