Valves and valve actuation – Electrically actuated valve – Having means to produce digital pulses
Patent
1989-04-28
1990-02-06
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Having means to produce digital pulses
74844, 361152, 361154, 13762564, 25112908, F16K 3106
Patent
active
048983616
ABSTRACT:
A PWM solenolid operated valve control arrangement which substantially eliminates supply voltage dependent variability of the valve without the expense or inefficiency of a conventional voltage regulator. The coil of the solenolid valve is pulse-width-modulated in relation to the commanded output result and the energization periods are submodulated in relation to the magnitude of the supply voltage. The effective voltage applied to the coil, and hence the operating characteristics of the solenoid valve, are thereby made substantially independent of supply voltage variations.
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Bender James G.
Herron Lee F.
Struthers Keith D.
Delco Electronics Corporation
General Motors Corporation
Navarre Mark A.
Rosenthal Arnold
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