EM coil for valves with temp. compensating resistor - has sec. winding parallel to resistor arranged on body of main coil and driven in opposite sense
摘要
The electromagnetic spool for valves has temperature compensation circuitry including a temperature dependent resistor (NTC) in the current line. A secondary coil (5) is connected in parallel with the resistor (NTC). This coil (5) is arranged on the body of the main coil (2) and is driven in the opposite sense to the main one (2). The resistor (NTC) and both coils are pref. formed as a single component encased in plastics material. USE/ADVANTAGE - For proportional valves operated, e.g. by pulse-driven e.m. coils for pressure or through controls used for electric pressure transducers to control turbo exhaust gas flow valves. Provides almost constant magnetic force over wide temp. range.
申请公布号
DE4205563(A1)
申请公布日期
1993.08.26
申请号
DE19924205563
申请日期
1992.02.22
申请人
PIERBURG GMBH, 4040 NEUSS, DE
发明人
BUSE, WERNER, 4044 KAARST, DE;KURTH, GUIDO, 4000 DUESSELDORF, DE