发明名称 |
VERFAHREN UND REGELEINRICHTUNG ZUM ZUMESSEN STROEMENDER MEDIEN |
摘要 |
<p>A method and system for providing dosing of fluid is described. The method and system is directed to the control of a plurality of parallel on/off valves which regulate the flow of the fluid. The system includes a plurality of base control valves for delivering a base flow amount. The base control valves are preferably arranged to have binary graduation of their respective flow rates. These base control valves are optionally discontinuously switched on and/or off for delivering the base flow amount. A "timed" valve is varied according to pulse-width modulation techniques to deliver a continuously variable partial flow. The control of the timed valve is effected by electrical circuitry which generates a feedback error signal related to the flow quantity.</p> |
申请公布号 |
DE2751743(A1) |
申请公布日期 |
1979.05.23 |
申请号 |
DE19772751743 |
申请日期 |
1977.11.19 |
申请人 |
PIERBURG LUFTFAHRTGERAETE UNION GMBH |
发明人 |
HOLZEM,HEINZ,DIPL.-ING.;KEHRMANN,HELMUT,DIPL.-ING. |
分类号 |
G05B11/18;G05D7/06;(IPC1-7):F17D3/00 |
主分类号 |
G05B11/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|