Patent ID: 6904934

Claim:
A proportional pressure adjustment valve ( 1 ) comprising: a valve part ( 2 ) with inlet and outlet openings ( 4 , 5 , 6 ) and at least one closing mechanism ( 7 ) for control of a valve ( 12 ) interacting with one of said inlet and outlet openings, a magnet part ( 3 ) with a magnet core ( 8 ), a magnet coil ( 9 ) and a displaceably disposed magnet armature ( 10 ); and an actuating element ( 11 ) which interacts with said armature ( 10 ) for controlling operation of the closing mechanism ( 7 ); wherein a hydraulically active cross-section of said valve ( 12 ) is determined by a valve length (L), a valve diameter (D) and a diameter (d) of a pin-shaped end piece ( 13 ) of said actuating element ( 11 ) that penetrates into said valve; and a ratio of said valve length (L) to said valve diameter (D) is less than 2.0.