Fuel injection device

Patent · Tue Mar 31 04:00:00 EST 1987

OSTI ID:6589645

Ohmori, T; Nakatsuka, H; Kanou, H

A fuel injection device is described for injecting fuel into a combustion chamber of an internal combustion engine, comprising: a body having first and second bores formed therein and extending in the axial direction thereof; a delivering plunger fitted into the first bore and defining a delivering pump chamber therein; driving means for reciprocating the delivering plunger in synchronism to the engine; pressurized medium supplying means for supplying a pressurized medium under a constant pressure to the delivering pump chamber, the pressurized medium supplying means including a pressurized medium source and a control passage linking the pressurized medium source to the delivering pump chamber; an electromagnetic valve provided on the control passage for opening and closing the control passage; and an injection plunger fitted into the second bore and defining, in the second bore, a linking chamber communicating with the delivering pump chamber and an injection pump chamber, the linking chamber and the delivering chamber becoming a liquid-tight chamber when the electromagnetic valve closes the control passage.

• Assignee: Nippondenso Co., Ltd., Kariya
• Patent Number(s): US 4653448
• OSTI ID: 6589645
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MAGNETS
NOZZLES
PRESSURIZING
PUMPS
SYNCHRONIZATION
VALVES
VEHICLES
VOLUME