Exhaust assembly for use with combustion engines, and vehicle provided with such assembly
OwnerWilhelmus Lambertus Arnoldus Meuseninventor
Life of this patent
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Abstract
An exhaust assembly for use with a motor vehicle having a combustion engine. The exhaust assembly includes an exhaust and a muffler having first and second gas flow routes. A control device controls the damping characteristic of the exhaust assembly by selectively dividing the gas flow by different amounts between the different gas flow routes. The control device, which may include a valve or a sliceable sleeve, is selectively operable by a user manually or electronically while the combustion engine is operating.
Claims9
An exhaust assembly for use with a motor vehicle having a combustion engine, said exhaust assembly comprising combustion engine connection means, at least one exhaust and at least one muffler, wherein means are provided for controlling the damping characteristic of said exhaust assembly, wherein said exhaust assembly comprises a housing and an inner tube extending coaxial inside said housing, said inner tube being provided with perforations, a valve provided inside said inner tube, said valve operable between open and closed positions at will by an operator, independently from any gas pressure inside said inner tube and said housing, such that, when said valve is in said closed position, exhaust gases are forced through said perforations into a ring-shaped space between said inner tube and said housing and out of said exhaust assembly, whereas, when said valve is open, said exhaust gasses leave said exhaust assembly primarily through said inner tube along an unobstructed linear path.
An exhaust assembly for use with a motor vehicle having a combustion engine, said exhaust assembly comprising combustion engine connection means for communicating with a gas feed pipe, at least one exhaust and at least one muffler, wherein means are provided for controlling the damping characteristic of said exhaust assembly, wherein said exhaust assembly comprises at least a first combustion gas flow route and a second combustion gas flow route, wherein the means for controlling the damping characteristic are operable during use with said combustion engine coupled thereto and are adapted to guide the combustion gases of the engine at least partly along one of said combustion gas flow routes, and wherein said exhaust assembly comprises a gas-tight housing and a perforated inner tube spaced therefrom, wherein said housing is at one end closed around said inner tube at said connecting means, and wherein a valve means, spaced from said connecting means, mounts in said inner tube for closing said inner tube completely or partly, the arrangement being such that when said valve means is open, said first combustion gas flow route extends directly through said inner tube to the environment, while when said valve means is closed, said second gas flow route extends, via said inner tube and said perforated openings, between said inner tube and said housing to the environment.
An exhaust assembly for use with a motor vehicle having a combustion engine, said exhaust assembly comprising:
- an elongated exhaust tube having a gas input end and an opposed gas output end, and a perforated tubular wall defining an unobstructed passageway extending linearly between said input end and said output end;
- an elongated housing having a gas-impervious tubular wall surrounding said elongated exhaust tube to form an elongated ring-shaped muffler chamber with opposed first and second ends, said first end of said chamber forming a gas tight seal with said exhaust tube and said second end of said chamber forming a ring-shaped gas discharge opening surrounding said gas output end of said exhaust tube;
- muffler means mounted in said ring-shaped muffler chamber for muffling sounds carried by combustion gasses passing into said muffler chamber via said perforated tubular wall;
- a tubular exhaust piece connected to said housing at said second end of said muffler chamber, said exhaust piece having a hollow interior in communication with said gas discharge opening and said gas output end of said exhaust tube for directing combustion gasses out of said exhaust assembly;
- and
- a control means mounted on said exhaust tube for selectively controlling the damping characteristic of said exhaust assembly by selectively causing different amounts of combustion gasses to flow to said exhaust piece via first and second routes, said first route defined by said exhaust tube and said gas output end of said exhaust tube, and said second route defined by a portion of said exhaust tube, said perforated tubular wall, said ring-shaped muffler chamber and said ring-shaped gas discharge opening.
An exhaust assembly for use with a motor vehicle having a combustion engine, said exhaust assembly comprising:
- a combustion engine connection means;
- at least one exhaust;
- at least one muffler;
- a control means for controlling the damping characteristic of said exhaust assembly, whereby the exhaust assembly comprises at least a first combustion gas flow route V1 and a second combustion gas flow route V2, and characterized in that the control means are operable selectively by an operator during use of the exhaust assembly with a combustion engine coupled thereto, and are adapted to divide an approximately constant volumetric flow rate produced by the combustion gases of the engine selectively over the combustion gas flow routes (V1 and V2), irrespective of the volume of combustion gases;
- at least one of the gas flow routes comprising damping means, such that the combustion gas flow routes (V1 and V2) have significantly different damping characteristics;
- and
- said exhaust assembly further characterized in that the or each muffler comprises a number of lamination-shaped muffler elements arranged one behind the other in the longitudinal direction of the muffler, wherein during use, the flue gases flow between the muffler elements in the direction of the outlet side of the relevant exhaust, wherein the control means comprise switching means for moving at least a number of the muffler elements relative to each other in the longitudinal direction of the muffler, in such a manner that the size of the passages between the muffler elements is adjusted thereby.
Dependencies are inferred from the claim text.