The invention relates to a solenoid valve made using certain materials which is capable of operation at high frequencies and which can be made as a compact unit. The plunger ( 1 ) is made from an electromagnetic material having a saturation flux density greater than 1.2 Tesla preferably more than 1.6 Tesla, the bore leading from the valve head chamber ( 14 ) to the nozzle orifice ( 12 ) has a length to diameter ratio of less than 5:1 preferably between 2:1 and 4:1 and the nozzle orifice ( 12 ) has a diameter of 80 micrometer or less. The invention also relates to method for operating a drop on demand ink jet printer incorporating such a valve.
申请公布号
DE60238434(D1)
申请公布日期
2011.01.05
申请号
DE2002638434
申请日期
2002.10.15
申请人
WILLET INTERNATIONAL LTD.
发明人
HORNSNELL, DAVID ANDREW;TOMLIN, MATTHEW BRIAN;LECHEHEB, AMMAR;PRIME, OLIVER JOHN;FOX, MICHAEL JOHN;BATES, CHRISTOPHER MICHAEL