EP 0034936 A1 19810902 - Apparatus for controlling fluid flow at an orifice.
Title (en)
Apparatus for controlling fluid flow at an orifice.
Title (de)
Vorrichtung für die Steuerung des Durchflusses durch eine Öffnung.
Title (fr)
Dispositif de commande de l'écoulement d'un fluide par un orifice.
Publication
Application
Priority
CA 346476 A 19800226
Abstract (en)
Control apparatus, typically for carburettors, which comprises an actuator device (20) having a permanent magnet armature and a pair of coils surrounding the permanent magnet, and a microprocessor (18) responsive to certain parameter-sensed variables including pressure (12), temperature (14), throttle conditions (16) and oxygen content (10) in order that these variously sensed parameters can be communicated to the microprocessor wherein there is transduced by algorithm either a digital signal or an analog signal. The digital or analog signal is then fed to the actuator device in the form of a demand signal for current flow to the armature coils. The coils upon energisation mechanically displace the armature to effect mechanical transducing of the electrical signal to control an actuator rod effecting orifice control. The @armature@ thus effectively controls the orifice size, which in turn determines fuel/air ratio for an internal combustion engine, in conjunction with a carburettor function. Fuel-air control creates operating conditions which in turn are re-sensed by the sensors, the sensors in turn repeating their operation so that there is provided a closed loop servo system either by digital or analog signals.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/26 (2006.01); F02M 3/09 (2006.01); F02M 7/20 (2006.01); F02M 7/24 (2006.01); F16K 31/06 (2006.01); F02M 37/00 (2006.01); G05D 7/06 (2006.01)
CPC (source: EP)
F02D 41/1484 (2013.01); F02D 41/26 (2013.01); F02M 3/09 (2013.01); F02M 7/20 (2013.01)
Citation (search report)
- [P] DE 3017467 A1 19801113 - NISSAN MOTOR
- [P] DE 2942837 A1 19800522 - NISSAN MOTOR
- DE 2813752 A1 19790208 - HITACHI LTD
- [A] EP 0006770 A1 19800109 - SIBE [FR]
- [A] US 4129105 A 19781212 - ITO OSAMU, et al
- [A] US 4132199 A 19790102 - KUROIWA HIROSHI, et al
- PATENTS ABSTRACTS OF JAPAN, Vol. 1, No. 105, 16 September 1977 page 3071M78 & JP-A-53 070225
- [A] Automobiltechnische Zeitschrift, Vol. 80, No. 9, September 1978, Stuttgart, G. HARTEL "Vergaser mit Elektronischem Regeleingriff" page 400
Designated contracting state (EPC)
DE SE
DOCDB simple family (publication)
EP 0034936 A1 19810902; EP 0034936 B1 19840523; AU 540195 B2 19841108; AU 6766981 A 19810903; CA 1150384 A 19830719; DE 3163710 D1 19840628; ES 499764 A0 19820901; ES 8206872 A1 19820901; FR 2476750 A1 19810828; FR 2476750 B1 19851018; GB 2077959 A 19811223; GB 2077959 B 19841121; IT 1144114 B 19861029; IT 8167260 A0 19810225; JP S57113952 A 19820715
DOCDB simple family (application)
EP 81300737 A 19810223; AU 6766981 A 19810226; CA 346476 A 19800226; DE 3163710 T 19810223; ES 499764 A 19810225; FR 8102217 A 19810205; GB 8105641 A 19810223; IT 6726081 A 19810225; JP 2603981 A 19810224