Dynamic exhaust system for advanced internal combustion engines
First Claim
Patent Images
1. A method of controlling exhaust flow in an exhaust system for a non-conventional internal combustion power source exhibiting, during operation, larger ranges of acoustic frequency, flow rate or pressure in exhaust flow than found in conventional internal combustion power sources, the method comprising:
- placing a passive temperature resistant valve in a path of exhaust gas flow, the valve operative to at least partially alter a characteristic of the exhaust gas flow for the larger ranges.
5 Assignments
0 Petitions
Accused Products
Abstract
A dynamic exhaust system is capable of operating at high temperatures and provides a passive, temperature resistant valve for controlling reflection, restriction and/or rerouting of the exhaust gas flow for sound control and/or emissions control in advanced internal combustion engines, such as cylinder deactivation, variable displacement, hybrid power plant, and cold hydrocarbon traps.
53 Citations
24 Claims
-
1. A method of controlling exhaust flow in an exhaust system for a non-conventional internal combustion power source exhibiting, during operation, larger ranges of acoustic frequency, flow rate or pressure in exhaust flow than found in conventional internal combustion power sources, the method comprising:
placing a passive temperature resistant valve in a path of exhaust gas flow, the valve operative to at least partially alter a characteristic of the exhaust gas flow for the larger ranges. - View Dependent Claims (2, 3, 4, 5)
-
6. A method of sound control in an exhaust system for an internal combustion power source exhibiting discontinuities in exhaust gas flow during operation, the method comprising:
placing a passive, temperature resistant valve in a path of exhaust gas flow, the valve operative to at least partially alter restriction of the exhaust gas flow whenever a discontinuity occurs. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
-
16. An arrangement for controlling exhaust flow in an exhaust system for a non-conventional internal combustion power source exhibiting, during operation, larger ranges of acoustic frequency, flow rate or pressure in exhaust flows than found in conventional internal combustion power sources the arrangement comprising:
a passive, temperature resistant valve positioned in a path of exhaust gas flow, the valve operative to at least partially alter a characteristic of the exhaust gas flow for the larger ranges. - View Dependent Claims (17, 18, 19, 20)
-
21. An arrangement for controlling sound in an exhaust system for an internal combustion power source exhibiting, during operation, discontinuity in exhaust gas flow, the arrangement comprising:
a passive, temperature resistant valve positioned in a path of the exhaust gas flow, the valve operative to at least partially alter restriction of the exhaust gas flow whenever a discontinuity occurs. - View Dependent Claims (22, 23, 24)
Specification