Internal combustion engine intake power booster system

Patent metadata

Field	Value
Publication number	US-2017321638-A1
Application number	US-201715654621-A
Country	US
Kind code	A1
Filing date	Jul 19, 2017
Priority date	Sep 2, 2015
Publication date	Nov 9, 2017
Grant date	—

Abstract

An internal combustion engine includes an intake conduit fluidically coupled to ambient fluid and having an internal cross-sectional area and an engine cylinder fluidically coupled to the intake conduit. A fluidic amplifier is disposed within the intake conduit and is fluidically coupled to the ambient fluid and engine cylinder. The amplifier is further fluidically coupled to a source of primary fluid and is configured to introduce the primary fluid and at least a portion of the ambient fluid to the engine cylinder.

First claim

We claim:

1 . An internal combustion engine, comprising:
an intake conduit fluidically coupled to ambient fluid and having an internal cross-sectional area; an engine cylinder fluidically coupled to the intake conduit; and a fluidic amplifier disposed within the intake conduit, the amplifier fluidically coupled to the ambient fluid and engine cylinder, the amplifier further fluidically coupled to a source of primary fluid, the amplifier configured to introduce the primary fluid and at least a portion of the ambient fluid to the engine cylinder.

2 . The engine of claim 1 , wherein the amplifier occupies less than the internal cross- sectional area of the intake conduit.

3 . The engine of claim 1 , wherein the amplifier comprises:
a convex surface; a diffusing structure coupled to the convex surface; and an intake structure coupled to the convex surface and configured to introduce to the diffusing structure the primary fluid, wherein the diffusing structure comprises a terminal end configured to provide egress from the amplifier for the introduced primary fluid and ambient fluid.

4 . The engine of claim 3 , wherein the convex surface includes a plurality of recesses.

5 . The engine of claim 1 , wherein the amplifier is configured to introduce the primary fluid in a pulsed manner at a predetermined frequency.

6 . The engine of claim 1 , wherein the primary-fluid source comprises an exhaust manifold fluidically coupled to the engine cylinder such that the primary fluid comprises exhaust gas from the engine cylinder.

7 . The engine of claim 1 , further comprising a reservoir fluidically coupled to the primary-fluid source, the reservoir containing at least one of a combustion-enhancing fuel or chemical.

8 . The engine of claim 1 , wherein the primary fluid source comprises at least one of a mechanically or turbine-driven compressor.

9 . A method of enhancing the performance of an internal combustion engine, the engine having an intake conduit fluidically coupled to ambient fluid and having an internal cross-sectional area, the engine further having a cylinder fluidically coupled to the intake conduit, the method comprising the steps of:
positioning a fluidic amplifier within the intake conduit, such that the amplifier is fluidically coupled to the ambient fluid and engine cylinder; and fluidically coupling a source of primary fluid to the amplifier, the amplifier configured to introduce the primary fluid and at least a portion of the ambient fluid to the engine cylinder.

10 . The method of claim 9 , wherein the amplifier occupies less than the internal cross-sectional area of the intake conduit.

11 . The method of claim 9 , wherein the amplifier comprises:
a convex surface; a diffusing structure coupled to the convex surface; and an intake structure coupled to the convex surface and configured to introduce to the diffusing structure the primary fluid, wherein the diffusing structure comprises a terminal end configured to provide egress from the amplifier for the introduced primary fluid and ambient fluid.

12 . The method of claim 9 , wherein the convex surface includes a plurality of recesses.

13 . The method of claim 9 , wherein the amplifier is configured to introduce the primary fluid in a pulsed manner at a predetermined frequency.

14 . The method of claim 9 , further comprising the step of fluidically coupling an exhaust manifold of the engine to the intake conduit such that the primary fluid comprises exhaust gas from the engine cylinder.

15 . The method of claim 9 , further comprising the step of fluidically coupling a reservoir to the primary-fluid source, the reservoir containing at least one of a combustion-enhancing fuel or chemical.

16 . The method of claim 9 , wherein the primary fluid source comprises at least one of a mechanically or turbine-driven compressor.

Assignees

• Jetoptera Inc

Inventors

• Evulet Andrei
• Hawkins John

Classifications

• F02B37/00

  Engines characterised by provision of pumps driven at least for part of the time by exhaust · CPC title

• F05D2270/173

  by the Coanda effect · CPC title

• F02M35/10222

  Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission · CPC title

• F05D2300/6033

  Ceramic matrix composites [CMC] · CPC title

• F02M35/10118 Primary

  with variable cross-sections of intake ducts along their length; Venturis; Diffusers · CPC title