Divert air valve for an internal combustion engine

Abstract

A divert air valve for an internal combustion engine arranged in a bypass channel between a pressure side and a suction side of a supercharging device includes a housing. A bypass valve comprises a first valve closure body. A control pressure chamber is connected with the pressure side through a compensation opening. A solenoid valve comprises a coil body, a magnetic yoke arrangement, an armature, and a second valve closure body which comprises a second spring element and cooperates with the armature. When the solenoid valve is energized and the bypass valve open, a fluidic communication can be established between the pressure side and the suction side or the atmosphere through the control pressure chamber. An overall cross section of the at least one control opening is larger than a cross section of the compensation opening. A closing of the fluidic communication causes a resultant force in a closing direction.

What is claimed is: 
     
         1 - 8 . (canceled) 
     
     
         9 . A divert air valve for an internal combustion engine, the divert air valve being arranged in a bypass channel between a pressure side and a suction side of a supercharging device, the divert air valve comprising:
 a housing;   a bypass valve comprising a first valve closure body which is configured to be pneumatically actuable and to be biased in a closing direction by a first spring element;   a control pressure chamber which, in the closed state of the bypass valve, is connected with the pressure side through a compensation opening which is configured to be permanently open; and   a solenoid valve comprising a coil body, a magnetic yoke arrangement, an armature configured to be biased in the closing direction, and a second valve closure body for at least one control opening, the second valve closure body comprising a second spring element and being configured to cooperate with the armature;   wherein, when the solenoid valve is in an energized state so that the bypass valve is open, a fluidic communication can be established between the pressure side and the suction side of the supercharging device or the atmosphere through the control pressure chamber,   wherein an overall cross section of the at least one control opening is larger than a cross section of the compensation opening, such that, when the bypass valve is open, a fluidic communication exists at least temporarily between the pressure side and the suction side of the supercharging device via the control pressure chamber, whereby a closing of the fluidic communication causes a resultant force in a closing direction.   
     
     
         10 . The divert air valve as recited in  claim 9 , wherein the coil body comprises the at least one control opening. 
     
     
         11 . The divert air valve as recited in  claim 9 , wherein the second spring element is supported at the magnetic yoke arrangement. 
     
     
         12 . The divert air valve as recited in  claim 9 , wherein the armature is provided substantially as a cylinder which is open on one side and which comprises a base, wherein the second valve closure body is formed at the base. 
     
     
         13 . The divert air valve as recited in  claim 9 , further comprising a solenoid valve housing comprising a fastening element, the solenoid valve housing being arranged in the housing so as to be sealed. 
     
     
         14 . The divert air valve as recited in  claim 13 , wherein fastening element is configured to clamp the solenoid valve housing. 
     
     
         15 . The divert air valve as recited in  claim 13 , wherein the first spring element is configured to be supported on the fastening element. 
     
     
         16 . The divert air valve as recited in  claim 13 , wherein the housing comprises a termination element configured to fix the solenoid valve housing in an axial direction.