Electromagnetic fuel injection valve
An electromagnetic fuel injection valve is described comprising: (a) a housing made of a magnetic material; (b) a valve which opens and closes a fuel injection port that is hydraulically connected to the interior of the housing; (c) a moving core which drives the valve; (d) a fuel guide member which consists of a large diameter portion that is secured to the housing on the side opposite to the fuel injection port. A stationary core extends from the large diameter portion to protrude into the housing. A connection portion extends from the large diameter portion to protrude toward the outer side of the housing, and a penetration path extends from the protruding end of the stationary core to the protruding end of the connection portion; (e) an electromagnetic coil disposed in an annular space defined by the outer periphery of the stationary core and the inner periphery of the housing; (f) a tubular member which is disposed in the penetration path and which has openings at its both ends; and (g) sealing means which hydraulically seals the area between the outer periphery of the tubular member and the inner periphery of the penetration path at an end portion on the side of the fuel injection port of the tubular member.
- Assignee:
- Hitachi, Ltd., Tokyo
- Patent Number(s):
- US 4625919
- OSTI ID:
- 7009856
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330603* -- Vehicle Design Factors-- Engine System
ANNULAR SPACE
CIRCULATING SYSTEMS
CONFIGURATION
CONTROL EQUIPMENT
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETISM
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HYDRAULICS
MAGNET COILS
MAGNETISM
MATERIALS
MECHANICS
SEALING MATERIALS
SEALS
SPACE
TUBES
VALVES
VEHICLES