Heat shield configuration

Abstract

A heat shield configuration having a heat shield for shielding an object from heat and/or noise having an internal surface facing toward the object and an external surface facing away from the object as well as an opening, which goes through the heat shield having internal surface and external surface. The heat shield has a closure for at least regionally closing the opening. In addition, an actuating device is provided, which is implemented to open and close the closure as a function of a controlled variable relevant for the function of the object.

1 . A heat shield configuration having a heat shield for shielding an object from heat and/or noise having an internal surface facing toward the object and an external surface facing away from the object as well as an opening, which goes through the heat shield having internal surface and external surface, comprising: 
 a closure of said heat shield for at least partially closing the opening; and    an actuating device, which is implemented to open and close the closure as a function of a controlled variable relevant for the function of the object.    
     
     
         2 . The heat shield configuration according to  claim 1 , wherein the controlled variable is selected from the group consisting of at least one of the following measured variables: temperature, pressure, velocity, acoustic signal, exhaust gas value, volume flow and operating volume.  
     
     
         3 . The heat shield configuration according to  claim 2 , wherein said temperature is an ambient temperature or component temperature of the object.  
     
     
         4 . The heat shield configuration according to  claim 2 , wherein said pressure is an internal pressure of the object.  
     
     
         5 . The heat shield configuration according to  claim 2 , wherein said velocity is flow or travel velocity.  
     
     
         6 . The heat shield configuration according to  claim 2 , wherein said acoustic signal is noise pressure.  
     
     
         7 . The heat shield configuration according to  claim 1 , wherein the heat shield has at least one measuring device for measuring the measured variable.  
     
     
         8 . The heat shield configuration according to  claim 7 , wherein the heat shield comprises means for analyzing the measurement results and control means for controlling the actuating device on the basis of the analysis of the measurement result.  
     
     
         9 . The heat shield configuration according to  claim 1 , wherein the actuating device is one of a pneumatic, hydraulic, and electrical actuating device.  
     
     
         10 . The heat shield configuration according to  claim 9 , wherein the actuating device is one of a servomotor and a vacuum unit.  
     
     
         11 . The heat shield configuration according to  claim 1 , wherein the actuating device is implemented to open the closure if a specific limiting measured variable is exceeded and to close it in the event of a measured variable less than or equal to the limiting measured variable.  
     
     
         12 . The heat shield configuration according to  claim 11 , wherein the actuating device is implemented to increasingly expose the opening with increasing distance from the limiting measured variable.  
     
     
         13 . The heat shield configuration according to  claim 1 , wherein the closure is implemented to open toward the side of the external surface.  
     
     
         14 . The heat shield configuration according to  claim 1 , wherein the actuating device is implemented to close the closure if a specific limiting measured variable is exceeded and to open it in the event of a measured variable less than or equal to the limiting measured variable.  
     
     
         15 . The heat shield configuration according to  claim 14 , wherein the actuating device is implemented to increasingly open or close the opening with increasing difference from the limiting measured variable.  
     
     
         16 . The heat shield configuration according to  claim 1 , wherein the closure is implemented as one of a slide, rotating slide, and flap.  
     
     
         17 . The heat shield configuration according to  claim 1 , wherein at least one further closure, to be opened and closed as a function of a measured variable relevant for the function of the object, is provided for at least partially closing a further opening.  
     
     
         18 . The heat shield configuration according to  claim 17 , wherein at least one further actuating device is provided, which is implemented to open and close the further closure.  
     
     
         19 . The heat shield configuration according to  claim 18 , wherein the actuating device is implemented to open or close the further closure at a different limiting measured value than the first actuating device of the first closure.  
     
     
         20 . The heat shield configuration according to  claim 1 , wherein the heat shield encloses the object to be shielded essentially on all sides.  
     
     
         21 . The heat shield configuration according to  claim 1 , wherein the heat shield shields an object in the area of an internal combustion engine.  
     
     
         22 . The heat shield configuration according to  claim 21 , the heat shield is for one of a catalytic converter, a diesel particulate filter, a turbocharger, and an exhaust system.