Solenoid valve for a coolant circuit

Abstract

A solenoid valve for a coolant circuit including a valve body having at least one inlet and at least one outlet for the coolant. A valve member is displaceable in the interior of the valve body between two switching positions for the solenoid valve. At least one outlet is formed by a capillary tube.

1 . A solenoid valve for a coolant circuit, comprising: 
 a valve body with an inlet and at least one coolant outlet;    a valve member in said valve body displaceable between two positions corresponding to two switching positions of the solenoid valve; and    said coolant outlet formed by a capillary tube.    
   
   
       2 . The solenoid valve according to  claim 1 , including the dimensions of said capillary tube are sized such that when coolant passes through the valve, the pressure drop between a beginning and an end of said capillary tube is a multiple of the pressure drop between said valve body inlet and the beginning of said capillary tube.  
   
   
       3 . The solenoid valve according to  claim 1 , including said valve body having a pair of coolant outlets, each said outlet formed by a capillary tube.  
   
   
       4 . The solenoid valve according to  claim 3 , including each said coolant outlet is arranged at a longitudinal end of said valve body and said inlet is arranged centrally on said valve body and including a longitudinal coil for generating a magnetic field in the longitudinal direction in said valve body.  
   
   
       5 . The solenoid valve according to  claim 4 , including said valve body is arranged outside said longitudinal coil and said coil including at least a pair of pole pieces in contact with said valve body for coupling in a magnetic field parallel to the longitudinal axis of said valve body.  
   
   
       6 . The solenoid valve according to  claim 1 , including said inlet is formed by an outlet pipe of a coolant drier joined to said valve body.  
   
   
       7 . The solenoid valve according to  claim 1 , including an end of said capillary tube opens into an evaporator.  
   
   
       8 . The solenoid valve according to  claim 3 , including an end of each said capillary tube opens into a separate evaporator.  
   
   
       9 . A solenoid valve for a coolant circuit, comprising: 
 a valve body with an inlet and at least a pair of coolant outlets, each said outlet formed by a capillary tube and each arranged at a longitudinal end of said valve body, with said inlet being arranged centrally on said valve body, and including a longitudinal coil for generating a magnetic field in the longitudinal direction in said valve body, and with said valve body arranged outside said longitudinal coil;    a valve member located in said valve body displaceable between two positions of the solenoid valve;    an outlet pipe of a coolant drier joining the coolant drier to the valve body and forming said inlet thereof; and    the dimensions of each said capillary tube being sized such that when coolant passes through the valve, the pressure drop between a beginning and an end of each said capillary tubes is a multiple of the pressure drop between said valve body inlet and the beginning of said capillary tube.