US2007074507A1PendingUtilityA1

Exhaust system with secondary performance respective torque control/regulation

Assignee: MULLER WERNERPriority: Sep 23, 2005Filed: Sep 21, 2006Published: Apr 5, 2007
Est. expirySep 23, 2025(expired)· nominal 20-yr term from priority
F01N 1/166
33
PatentIndex Score
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Claims

Abstract

An exhaust gas device to control, respectively regulates the torque, respectively the performance/power output of a combustion engine includes at least one primary and one secondary flow routing, for gases coming from the combustion engine. The flow routings are designed, to optimize the torque and or the performance/power output of the combustion engine, depending on existing operating parameters. A control element to control respectively regulate the exhaust gas through at least one flow routing.

Claims

exact text as granted — not AI-modified
1 . Exhaust gas device to control, respectively regulate the torque, respectively the performance/power output of a combustion engine comprising: 
 a) at least one primary and one secondary flow routing, for gases coming from the combustion engine, where the flow routings are designed, to optimize the torque and or the performance/power output of the combustion engine, depending on existing operating parameters, and    b) a control element to control respectively regulate the exhaust gas through at least one flow routing.    
   
   
       2 . Exhaust gas device according to  claim 1 , where the flow routings, are located within a common housing, and the primary flow routing basically reassembles a duct/pipe, that is mainly oriented concentric to the housing.  
   
   
       3 . Exhaust gas device according to  claim 1 , where the secondary flow routing is composed of several pipes/ducts, that are located outside of the primary flow routing and are preferably parallel to it, and which are connected with it downstream and upstream from the control element.  
   
   
       4 . Exhaust gas device according to  claim 1 , where the secondary flow routing is composed of 2 to 5 pipes/ducts, that are mainly allocated around the first flow routing.  
   
   
       5 . Exhaust gas device according to  claim 3 , where the bifurcation, between the primary flow routing and the pipes/ducts, is composed of a first array of several radial holes/drillings, between the primary flow routing and a first chamber, and where the initial open ends of the pipes/ducts, reach into the first chamber, to enable the exhaust gas to flow from the primary flow routing through the holes and the first chamber, into the pipes/ducts.  
   
   
       6 . Exhaust gas device according to  claim 4 , where the section of a cover of the first chamber, which is located opposite the open ends of the ducts, is cambered to ensure that exhaust gas, flowing from the chamber, is deducted/deflected towards the ends of the ducts.  
   
   
       7 . Exhaust gas device according to  claim 3 , where a conjunction of the ducts and the primary flow routing is achieved by a secondary array of several radial holes, between the primary flow routing and a second chamber, where two open ends of the ducts, reach into the second chamber, in order to let the exhaust gas from the ducts flow through the second chamber and the secondary array of holes, into the primary flow routing.  
   
   
       8 . Exhaust gas device according to  claim 7 , where the section of a cover of the second chamber, which is located opposite the second open ends of the ducts, is cambered to ensure that exhaust gas, flowing from the second open ends of the ducts, is deducted/deflected towards the second chamber.  
   
   
       9 . Exhaust gas device according to  claim 7 , where the area of the first array of radial wholes is about twice the size of the area, of the second array of radial wholes, to ensure a slackening of the exhaust gas in the section in front of the control unit.  
   
   
       10 . Exhaust gas device according to  claim 1 , where the exhaust gas device is an exhaust gas muffler/dampener, in which the flow routings are located.  
   
   
       11 . Exhaust gas device according to  claim 1 , where the control element is a throttle flap.  
   
   
       12 . Exhaust gas device according to  claim 1 , where the throttle flap, within the primary flow routing, in a special throttle section, is rotary pivoted mostly around its own center axis, arranged in amounting ring, where the outer diameter of the throttle flap matches the inner diameter of the throttle section of the primary flow routing.  
   
   
       13 . Exhaust gas device according to  claim 1 , where the control unit hits a catch when closed and can be opened up to 90° from the closed position.  
   
   
       14 . Exhaust gas device according to  claim 1 , where the control element can be directly or indirectly actuated from outside the exhaust gas device, by a driver, and where an additional device, to monitor Rpm, charge state, velocity, and or a composure of the gas mixture, is intended, to send signals to a control unit, which actuates the control element, respectively influences torque and/or performance/power output, according to the incoming signals.  
   
   
       15 . Exhaust gas device according to  claim 1 , where the control element can be actuated by at least one of he following means: electro-magnetically, magnetically, pneumatically, hydraulically and/or mechanically.  
   
   
       16 . Exhaust gas device according to  claim 1 , where the control element can be actuated by at least one of the following devices: a Bowden cable, a push- or pull rod, a belt, a chain, a spring, an electric motor, a vacuum cylinder and/or a magnetic device.  
   
   
       17 . Exhaust gas device according to  claim 1 , where the control element can be actuated staged or continuously by the driver.  
   
   
       18 . Exhaust gas device according to  claim 1 , where at least one bifurcation between the two flow routings is included, upstream from the control element.  
   
   
       19 . Exhaust gas device according to  claim 1 , where at least one noise dampening system is incorporated.  
   
   
       20 . Exhaust gas device according to  claim 19 , where the noise dampening/absorption system, incorporates noise dampening holes and a third chamber, and the noise dampening holes, reach from the primary flow routing, radial, into the third chamber, and the third chamber can be filled with noise absorbing material, like mineral wool.  
   
   
       21 . Exhaust gas device according to  claim 20 , where the third chamber, extends from the first chamber to the second chamber.  
   
   
       22 . Exhaust gas device according to  claim 21 , where at least one of the three chambers is formed by a separating plate, that is extending from he concentric duct to an inner cylinder, in a radial way.  
   
   
       23 . Exhaust gas device according to  claim 1 , where an outlet of the exhaust gas device, is tapered at least in one section, for additional noise reduction.  
   
   
       24 . Exhaust gas device according to  claim 23 , where an outer cylinder is incorporated, which covers an inner cylinder, featuring an air cushion and/or dampening material, for thermal insulation, and which leads into the outlet.  
   
   
       25 . Exhaust gas device according to  claim 1 , where it is designed to function as a motorcycle-, automobile-, or quad exhaust system.  
   
   
       26 . Exhaust gas device according to  claim 1 , where it is designed as a muffler kit or a refit kit.  
   
   
       27 . Torque control system with an exhaust system, according to  claim 1 , with an additional device to monitor the velocity of the vehicle, as well as operating parameters of the engine, like RPM, charge, engine temperature, manifold pressure, throttle valve position of the carburetor, back pressure, gas mixture, ignition cycles, via ignition module, engine management system or knock sensors, intake air temperature and/or ambient air pressure, and a memory device with control settings, to operate the exhaust system according to at least one of the above parameters.  
   
   
       28 . Method to control respectively regulate the torque, respectively performance of a combustion engine equipped with an exhaust gas device, with following steps: 
 providing at least one primary and one secondary flow routing, for exhaust gas, where the flow routings were designed to optimize the torque and/or performance/power output, of a combustion engine, depending on operating parameters of the engine, and actuation of minimum one control element, to control respectively regulation of the exhaust gas, through at least one of the flow routings.    
   
   
       29 . Method according  claim 28 , where the throttle flap stays closed, up to about ¾ of the maximum RPM, and opens up at higher RPM, exceeding ¾ of max. RPM.  
   
   
       30 . Method according  claim 28 , where the throttle flap stays closed, up to about ½ of the maximum RPM, and opens up at higher RPM, exceeding ½ of max. RPM.

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