Backpressure reducing exhaust system with stationary blade structure
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01N-001/12
F01N-001/08
출원번호
US-0962923
(2004-10-12)
등록번호
US-7380639
(2008-06-03)
발명자
/ 주소
Arlasky,Frank Josepn
출원인 / 주소
Arlasky Performance Inc.
대리인 / 주소
Faier,Martin
인용정보
피인용 횟수 :
4인용 특허 :
10
초록▼
The present invention provides an exhaust chamber system, comprising a stationary propeller type blade assembly with a nose cone within or adjacent to an expansion chamber, to create a vortex that swirls exhaust gas towards the outlet. The resultant vacuum within the exhaust chamber aids in scavengi
The present invention provides an exhaust chamber system, comprising a stationary propeller type blade assembly with a nose cone within or adjacent to an expansion chamber, to create a vortex that swirls exhaust gas towards the outlet. The resultant vacuum within the exhaust chamber aids in scavenging an internal combustion engines exhaust gases, and in reducing system back pressure The exhaust chamber maintains the sound level of the exhaust within acceptable limits, while delivering improved horsepower, torque, and/or fuel efficiency over standard and other performance mufflers.
대표청구항▼
Having thus described my invention, I claim: 1. An exhaust chamber means for reducing back pressure in the exhaust system of an internal combustion engine comprising: a shell; an expansion chamber tube coaxially attached to said shell, where the expansion chamber tube has a substantially constant l
Having thus described my invention, I claim: 1. An exhaust chamber means for reducing back pressure in the exhaust system of an internal combustion engine comprising: a shell; an expansion chamber tube coaxially attached to said shell, where the expansion chamber tube has a substantially constant longitudinal inside diameter free of other structure within said chamber; an inlet flange tube fastened to said shell in communication with said expansion chamber tube, the inlet flange tube having a smaller flow cross-sectional area than the expansion chamber tube; and a stationary blade assembly arranged in said inlet flange or in said tube, the blade assembly including a nose cone and from 2 to 8 blades, the blades having a turn of between about 20-60 degrees. 2. The exhaust chamber of claim 1, wherein the blade assembly is compressed fit between said inlet flange tube and said expansion chamber, and the blade assembly rests in a counter bore groove in said inlet flange tube. 3. The exhaust chamber of claim 1, wherein the nose cone has a taper substantially of about 45 degrees. 4. The exhaust chamber of claim 1, wherein the blades of the blade assembly are arranged substantially at about 35 degrees to the path of combustion gases. 5. The exhaust chamber of claim 1, wherein the shell includes sound suppression materials residing in the coaxial space between the shell and the expansion chamber tube, the sound suppression material selected from the group consisting of fiberglass, glass wool, copper wool, copper strands, steel wool, high temperature ceramic, and a combination thereof. 6. The exhaust chamber of claim 1, wherein the expansion chamber tube has between about 2 to 2.25 times greater flow cross-sectional area than the inlet flange tube. 7. The exhaust chamber of claim 1, wherein the inlet flange tube has conical shape that expands to match the cross sectional area of the expansion chamber tube. 8. The exhaust chamber of claim 1, wherein said expansion chamber tube is perforated with apertures to achieve porosity. 9. The exhaust chamber of claim 1, wherein the exhaust chamber is joined to an internal combustion engine through a series of manifolds, pipes, tubing or other emission control devices. 10. The exhaust chamber of claim 1 having 3-5 blades. 11. The exhaust chamber of claim 1, where the blades extend from the nose cone to the inside surface of the expansion chamber tube. 12. A method of accelerating internal combustion engine exhaust gases for reducing back pressure in an exhaust system of an internal combustion engine, comprising: flowing combustion gases from an internal combustion engine to an inlet of an exhaust chamber, said chamber being free of other structure within said chamber and from 2 to 2.25 times the cross section of said inlet; flowing the gases from the inlet past a blade assembly including a nose cone and from 2 to 8 blades, each blade having a turn of between about 20-60 degrees; accelerating the gases from the nose cone to the peripheral portions of the blades into an expansion chamber, the expansion chamber having a substantially constant longitudinal inside diameter and a larger cross-sectional area than the inlet; and forming an area of lower pressure within a central area of the expansion chamber, the area of lower pressure reducing back pressure in the exhaust system of the internal combustion engine inducing a vortex swirling of a gas stream from said blade assembly to an outlet from said chamber. 13. The method of claim 12, where the gases become progressively lighter from the inlet of the expansion chamber to said outlet of the expansion chamber. 14. The method of claim 12, where the nose cone has a taper substantially of about 45 degrees and the blades each has a turn of about 35 degrees. 15. The method of claim 12, where the expansion chamber has between about 2 to 2.25 times greater cross-sectional area than the inlet. 16. The method of claim 12, where the inlet has a tapered conical shape that expands to match the cross-sectional area of the expansion chamber. 17. The method of claim 12, further comprising reducing the back pressure in an exhaust system of an internal combustion engine. 18. An exhaust chamber means for reducing back pressure in the exhaust system of an internal combustion engine, the means comprising: a shell; an expansion chamber coaxially attached to the shell, where the expansion chamber has a substantially constant longitudinal inside diameter; an inlet means for providing a small flow cross-sectional area than the expansion chamber, the inlet means fastened to the shall and in flow communication with the expansion chamber; an outlet means fastened to said expansion chamber at an end opposed to said inlet means for exiting gases from said expansion chamber; and a stationary blade assembly means at the entrance to the expansion chamber, the stationary blade assembly including a nose cone and from 2 to 8 blades each having a turn of between about 20 and 60 degrees arranged substantially at about 35-45 degrees to the path of combustion gases for reducing the back pressure in the exhaust system of the internal combustion engine and to induce a vortex swirling of a gas stream from said blade assembly to said outlet means. 19. The exhaust chamber means of claim 18, where the expansion chamber has between about 2 to 2.25 times greater cross-section area than the inlet means. 20. The exhaust chamber means of claim 18, where the inlet means has a tapered conical shape that expands to match die cross-sectional area of the expansion chamber. 21. The exhaust chamber means of claim 18, where the stationary blade assembly means includes from 3 to 5 blades. 22. The exhaust chamber means of claim 21 where the blades each have a turn of about 35 degrees.
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이 특허에 인용된 특허 (10)
Kim Jay S., Air turbulence generator of internal combustion engines.
Michikawa Hirokuni (1-115 ; Minamieguchi-cho Higashiyodogawa-ku ; Osaka-shi ; Osaka-fu JPX), Means for accelerating the discharge of exhaust gas from an internal combustion engine.
Angelo Theodore G. ; Hamrin John ; Stenersen Eivind ; Hiemstra John ; Wagner Wayne M. ; Wiegandt Ted J., Mufflers for use with engine retarders; and methods.
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