Compressed air assisted fuel injection system with variable effective reflection length
AssigneeDesign & Manufacturing Solutions, Inc.
InventorWilliam T. Cobb, Jr.
Life of this patent
Estimating the term…
Abstract
An internal combustion engine having a combustion chamber and a fuel delivery system for delivering fuel into the combustion chamber. The fuel delivery system includes a fuel entry proximate the combustion chamber and a combustion compression wave reflection conduit connected to the combustion chamber proximate the fuel entry. The reflection conduit comprises a variable effective reflection length.
Claims36
In an internal combustion engine having a combustion chamber and a fuel delivery system for delivering fuel into the combustion chamber, the improvement comprising:
- the fuel delivery system including a fuel entry proximate the combustion chamber and a combustion compression wave reflection conduit connected to the combustion chamber proximate the fuel entry, wherein the reflection conduit comprises a variable effective reflection length.
An internal combustion engine fuel delivery assist comprising:
- a combustion compression wave reflector;
- and
- a control system connected to the reflector for at least partially controlling the reflector to vary timing of delivery of a reflected combustion compression wave to a predetermined location of an engine.
In an internal combustion engine having a combustion chamber and a fuel delivery system for delivering fuel into the combustion chamber, the improvement comprising:
- the fuel delivery system including a fuel entry proximate the combustion chamber and a combustion compression wave reflector connected to the combustion chamber, wherein the reflector is variable based upon at least one engine operating parameter of the engine.
An internal combustion engine fuel delivery assist system comprising:
- a variable combustion compression wave reflector comprising a reflection conduit;
- and
- a control system for selectively actuating and deactuating effective combustion compression wave reflection by the reflector.
A method of delivering pressure pulses in an internal combustion engine, the method comprising steps of:
- producing a combustion compression wave from combustion in a combustion chamber of the engine;
- conduiting at least a portion of the wave in a reflection pipe conduit connected to the combustion chamber;
- reflecting the wave portion in the conduit back towards the combustion chamber;
- and
- varying timing of delivery of the reflected wave portion back to the combustion chamber.
A method of delivering air from a compressed air assisted fuel injection system into a cylinder of an internal combustion engine comprising steps of:
- compressing air into an accumulator of the injection system;
- releasing a first amount of the compressed air out the accumulator and through an injection port into the cylinder at a first pressure;
- and
- releasing a subsequent second amount of the compressed air out the accumulator and through the injection port into the cylinder at a second pressure higher than the first pressure.
A method of delivering fuel and air from a compressed air assisted fuel injection system into a cylinder of an internal combustion engine comprising steps of:
- providing the injection system with a compressed air accumulator having a channel between a crankcase of the engine and the cylinder;
- delivering a first amount of fuel and compressed air from the channel into the cylinder;
- and
- delivering a subsequent second amount of fuel and compressed air at a second higher rate from the channel into the cylinder, wherein the steps of delivering the first and second amounts occur in a single injection cycle.
Dependencies are inferred from the claim text.