IP Library › Patent Application 15670943
Patent Application
App. No. 15/670,943

INTERNAL COMBUSTION ENGINE EXHAUST PIPE FLUIDIC PURGER SYSTEM

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Quick Facts
Patent No.
US None
App. No.
15/670,943
Abstract

An internal combustion engine includes an exhaust conduit having an exhaust port fluidically coupled to ambient fluid and having an internal cross-sectional area and an engine cylinder fluidically coupled to the exhaust conduit. A fluidic amplifier is disposed within the exhaust conduit and is fluidically coupled to the 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 fluid from the engine cylinder to the exhaust port.

Claims (35)

1 . An internal combustion engine, comprising:

an exhaust conduit having an exhaust port fluidically coupled to ambient fluid, the exhaust conduit having an internal cross-sectional area;

an engine cylinder fluidically coupled to the exhaust conduit; and

a fluidic amplifier disposed within the exhaust conduit, the amplifier fluidically coupled to the 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 fluid from the engine cylinder to the exhaust port.

2 . The engine of claim 1 , wherein the amplifier occupies less than the internal cross-sectional area of the exhaust 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 fluid from the engine cylinder.

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 at least one of a mechanically or turbine-driven compressor.

7 . A method of enhancing the performance of an internal combustion engine, the engine having an exhaust conduit including an exhaust port fluidically coupled to ambient fluid and having an internal cross-sectional area, the engine further having a cylinder fluidically coupled to the exhaust conduit, the method comprising the steps of:

positioning a fluidic amplifier within the exhaust conduit, such that the amplifier is fluidically coupled to the 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 fluid from the engine cylinder to the exhaust port.

8 . The method of claim 7 , wherein the amplifier occupies less than the internal cross-sectional area of the intake conduit.

9 . The method of claim 7 , 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 fluid from the engine cylinder.

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

11 . The method of claim 7 , wherein the amplifier is configured to introduce the primary fluid in a pulsed manner at a predetermined frequency.

12 . The method of claim 7 , wherein the primary fluid source comprises at least one of a mechanically or turbine-driven compressor.

13 . A vehicle, comprising:

an exhaust conduit having an exhaust port fluidically coupled to ambient fluid, the exhaust conduit having an internal cross-sectional area;

an engine chamber fluidically coupled to the exhaust conduit; and

a fluidic amplifier disposed within the exhaust conduit, the amplifier fluidically coupled to the engine chamber, 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 fluid from the engine chamber to the exhaust port.

14 . The vehicle of claim 13 , wherein the amplifier occupies less than the internal cross-sectional area of the exhaust conduit.

15 . The vehicle of claim 13 , 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 fluid from the engine chamber.

16 . The vehicle of claim 15 , wherein the convex surface includes a plurality of recesses.

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

18 . The vehicle of claim 13 , wherein the primary fluid source comprises at least one of a mechanically or turbine-driven compressor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2017
From: EVULET, ANDREI
To: JETOPTERA, INC.
Reel/Frame 044268/0163 →