Title:
MAGNETICALLY COUPLED FUEL INJECTOR PUMP
Document Type and Number:
WIPO Patent Application WO2002014678
Kind Code:
A9
Abstract:
A pump (10) of high pressure direct injection fuel supply system is connected to the engine through a magnetic clutch which includes a motorizing function. The magnetic clutch comprises rotating electromagnetic coils (20) attached to and driven by the engine and rotating permanent magnets (34) attached to and driving the pump. The slippage of the clutch is controlled by the on-off cycle of electrical power which is simultaneously supplied to all of the electromagnetic coils and may be responsive to the pressure in the fuel injections rail. The clutch may be operated as an electrical motor by sequentially activating the electromagnetic coils for the purpose of providing fuel pressure even prior to rotation or cranking of the engine. An isolation barrier hermetically seals the fuel injection pump from the engine.
Inventors:
DJORDJEVIC ILIJA (US)
Application Number:
PCT/US2001/025213
Publication Date:
March 27, 2003
Filing Date:
August 13, 2001
Export Citation:
Assignee:
STANADYNE AUTOMOTIVE CORP (US)
DJORDJEVIC ILIJA (US)
DJORDJEVIC ILIJA (US)
International Classes:
F02M37/00; F02M39/02; F02M55/02; F02M59/10; F16D27/00; (IPC1-7): F02M39/02
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