IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0950034
(2007-12-04)
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등록번호 |
US-8453672
(2013-06-04)
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발명자
/ 주소 |
- Abram, Kwin
- Callahan, Joseph
- Willats, Robin
- Arbuckle, Ivan
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
14 |
초록
▼
A passive valve assembly for an exhaust system is mounted within an exhaust tube. The exhaust tube has a bore that defines an exhaust flow path having a cross-sectional area. One end of the exhaust tube is to be connected to a first exhaust component and a second end of the exhaust tube is to be con
A passive valve assembly for an exhaust system is mounted within an exhaust tube. The exhaust tube has a bore that defines an exhaust flow path having a cross-sectional area. One end of the exhaust tube is to be connected to a first exhaust component and a second end of the exhaust tube is to be connected to a second exhaust component such that the exhaust tube forms a sole exhaust path between the first and the second exhaust components. The passive valve assembly includes a vane that is mounted within the bore, and which is moveable between an open position and a closed position. A resilient member biases the vane toward the closed position. When the vane is in the closed position, the vane covers 80% to 97% of the cross-sectional area.
대표청구항
▼
1. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said
1. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and wherein a length of said exhaust tube extending between said one end and said second end is greater than a diameter of said vane; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member. 2. The passive valve assembly according to claim 1 wherein said vane provides 87.5% to 92.5% coverage of said cross-sectional area when in said closed position. 3. The passive valve assembly according to claim 1 including a shaft mounted to said vane, said shaft being pivotally supported by at least one bushing, and wherein said resilient member comprises a spring that is supported on said shaft. 4. The passive valve assembly according to claim 1 wherein said cross-sectional area of said exhaust tube is generally constant along an axial length of said exhaust tube. 5. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components, and wherein the exhaust tube comprises a single tube body having a first tube end connected to the first exhaust component and a second tube end connected to the second exhaust component such that the exhaust tube only extends between the first and second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and wherein said vane comprises the only valve assembly positioned between the first and the second exhaust components, and wherein the vane is positioned within the exhaust path such that the vane is axially spaced apart from the first and second tube ends anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member. 6. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components, and wherein at least one of the first and second exhaust components comprises a single muffler;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said dosed position; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member. 7. The passive valve assembly according to claim 6 wherein the other of the first and second exhaust components comprises one of a tailpipe and another single muffler. 8. A passive valve assembly for an exhaust system comprising: exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position;a resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient members anda shaft mounted to said vane, said shaft being pivotally supported by at least one bushing, and wherein said resilient member comprises a spring that is supported on said shaft, and wherein said exhaust tube includes a slot that receives a housing, said housing including a central bore that receives said at least one bushing and said shaft, and wherein said shaft extends between first and second shaft ends with said spring being supported on one of said first and said second shaft ends outside of said exhaust tube. 9. An exhaust system comprising: a first exhaust component;a second exhaust component, wherein one of said first and second exhaust components comprises a muffler and the other of said first and second exhaust components comprises a tailpipe;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component, said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components; anda passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow, and wherein said vane is mounted within said exhaust tube at a location that is external to said muffler. 10. The exhaust system according to claim 9 including a resilient member that biases said vane toward said closed position, and wherein said vane is moved from said closed position toward said open position only when pressure of the exhaust gas flow exceeds a biasing force of said resilient member. 11. The exhaust system according to claim 10 wherein said vane provides 87.5% to 92.5% coverage of said cross-sectional area when in said closed position. 12. The exhaust system according to claim 10 including a housing with a central bore, first and second bushings mounted within said central bore, a shaft rotatably supported on said first and second bushings, a first retainer fixed to said housing, and a second retainer fixed to said shaft, and wherein said vane is fixed to said shaft for pivotable movement therewith between said open and said closed positions, and wherein said resilient member comprises a coil spring having a first spring end associated with said housing via said first retainer and a second spring end associated with said shaft via said second retainer such that said coil spring biases said vane toward said closed position. 13. An exhaust system comprising: a first exhaust component;a second exhaust component;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component, said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components wherein the exhaust tube comprises a single tube body having a first tube end connected to the first exhaust component and a second tube end connected to the second exhaust component such that the exhaust tube only extends between the first and second exhaust components; anda passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow, and wherein said vane comprises the only valve assembly positioned between said first and said second exhaust components, and wherein said vane is positioned within the exhaust path such that the vane is axially spaced apart from the first and second tube ends; anda resilient member that biases said vane toward said closed position, and wherein said vane is moved from said closed position toward said open position only when pressure of the exhaust gas flow exceeds a biasing force of said resilient member. 14. An exhaust system comprising: a first exhaust component;a second exhaust component wherein one of said first and said second exhaust components comprises a first single muffler and the other of said first and said second exhaust components comprises one of a tailpipe and a second single muffler;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component, said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components, and wherein said inlet of said exhaust tube only receives exhaust gas from said first single muffler and wherein said outlet of said exhaust tube only directs exhaust gas flow into the other of said one of said tailpipe and said second single muffler;a passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow; anda resilient member that biases said vane toward said closed position, and wherein said vane is moved from said closed position toward said open position only when pressure of the exhaust gas flow exceeds a biasing force of said resilient member. 15. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position;a resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member; andwherein said exhaust tube has a first tube end connected to the first exhaust component and a second tube end connected to the second exhaust component and wherein said vane is positioned within said exhaust tube to be external to the first and second exhaust components and wherein said exhaust tube is externally located to all other exhaust components. 16. The passive valve assembly according to claim 15 wherein the first exhaust component comprises a tailpipe and the second exhaust component comprises a muffler. 17. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having across-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components, and wherein said exhaust tube comprises a single tube that only extends between the first and second exhaust components such that said inlet of said exhaust tube only receives exhaust gas from one of the first and second exhaust components and said outlet of said exhaust tube only directs exhaust gas flow into the other of the first and second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and wherein said vane remains entirely within said exhaust tube as said vane moves between said open and closed positions and with said exhaust tube being externally located to all other exhaust components; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member. 18. The passive valve assembly according to claim 17 wherein said resilient member is mounted external to said single tube. 19. An exhaust system comprising: a first exhaust component;a second exhaust component;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components;a passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that overcomes a biasing force of a resilient member; andwherein said exhaust tube comprises a single tube that connects said first and second exhaust components and wherein said resilient member is mounted external to said single tube, and wherein said vane remains entirely within said single tube as said vane moves between said open and closed positions. 20. An exhaust system comprising: a first exhaust component;a second exhaust component;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component, said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components, and wherein said cross-sectional area of said exhaust tube is generally constant along an axial length of said exhaust tube, and wherein said exhaust tube has a first tube end connected to the first exhaust component and a second tube end connected to the second exhaust component; anda passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow, and wherein said vane is positioned within said exhaust tube to be external to the first and second exhaust components and with said exhaust tube being externally located to all other exhaust components. 21. A passive valve assembly for an exhaust system comprising: an exhaust tube having only one inlet and only one outlet, said inlet to be only connected to a first single exhaust component and said outlet only to be connected to a second single exhaust component such that said exhaust tube forms a sole exhaust flow path extending between the first and the second exhaust components;a vane mounted within said exhaust tube and being pivotable between an open position and a closed position, and wherein said sole exhaust flow path has a cross-sectional area, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and wherein a length of said exhaust tube extending between said inlet and said outlet is greater than a width of the vane extending across the cross-sectional area of the flow path such that said vane remains entirely within said exhaust tube as said vane moves between said open and closed positions; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow. 22. The passive valve assembly according to claim 21 wherein said vane comprises a body having an upstream face and a downstream face, and wherein said body is defined by a thickness extending axially between said upstream and downstream faces with said width being defined as extending across said upstream face from one body edge to an opposite body edge. 23. An exhaust system comprising: a first exhaust component;a second exhaust component;an exhaust tube including an internal opening defining an exhaust flow path that has a cross-sectional area, said exhaust tube having one tube end connected to said first exhaust component and a second tube end connected to said second exhaust component, said exhaust tube having only one inlet at said first tube end and only one outlet at said second tube end such that said exhaust tube forms a sole exhaust path extending between said first and said second exhaust components; anda passive valve assembly including a vane mounted within said internal opening, said vane being moveable between an open position and a closed position, and said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow, and wherein a length of said exhaust tube extending between said one tube end and said second tube end is greater than a diameter of the vane. 24. A passive valve assembly for an exhaust system comprising: an exhaust tube having a bore defining an exhaust flow path having a cross-sectional area, said exhaust tube having one end to be connected to a first exhaust component and a second end to be connected to a second exhaust component, said exhaust tube having only one inlet and only one outlet such that said exhaust tube forms a sole exhaust path extending between the first and the second exhaust components;a vane mounted within said bore and being moveable between an open position and a closed position, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow that exceeds a biasing force of said resilient member, and wherein said vane is moveable between said open and closed positions during vehicle operation as exhaust gas flow pressures increase and decrease in relation to said biasing force of said resilient member, and wherein with said exhaust tube is externally located to all other exhaust components. 25. A passive valve assembly for an exhaust system comprising: an exhaust tube having only one inlet and only one outlet, said inlet to be only connected to a first single exhaust component and said outlet only to be connected to a second single exhaust component such that said exhaust tube forms a sole exhaust flow path extending between the first and the second exhaust components wherein said inlet comprises a first tube end connected to the first exhaust component and said outlet comprises a second tube end connected to the second exhaust component;a vane mounted within said exhaust tube and being pivotable between an open position and a closed position, and wherein said sole exhaust flow path has a cross-sectional area, said vane providing 80% to 97% coverage of said cross-sectional area when in said closed position, and wherein said vane is positioned within said exhaust tube to be external to the first and second exhaust components and is positioned within said exhaust flow path to be axially spaced apart from said first and second tube ends; anda resilient member that biases said vane toward said closed position, said vane solely being moveable from said closed position toward said open position in response to an increased pressure of exhaust gas flow. 26. The passive valve assembly according to claim 25 wherein said exhaust tube is externally located to all other exhaust components.
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