Fuel injection nozzle

Patent · Tue Dec 09 04:00:00 EST 1986

OSTI ID:7010317

Kato, M; Nakatsuka, H; Tojo, S; Arai, K

A fuel injection nozzle is described which is adapted to be connected to a fuel injection pump and which serves to inject fuel into a combustion chamber in an internal combustion engine. The nozzle consists of: a body in which a suction passage and an accumulating chamber are defined, the suction passage being adapted to be connected with a fuel injection pump and the accumulating chamber being connected with the suction passage; a non-return valve means for allowing the fuel to flow from the suction passage to the accumulating chamber but prohibiting the fuel from flowing from the accumulating chamber to the suction passage; a needle valve means for injecting the fuel stored in the accumulating chamber into a combustion chamber in an engine, the needle valve means including a nozzle needle arranged coaxially and in series with the valve with end portions thereof being adjacent; a damping plunger coaxially fitted into the valve member in the manner that the damping plunger is urged toward the nozzle needle and has one end protruding into the damping chamber and engageable by the nozzle needle, throttle means disposed in the through hole in the damping plunger, for restricting the fuel flow between the damping chamber and the connector recess.

• Assignee: Nippondenso Co., Ltd., Kariya
• Patent Number(s): US 4627571
• OSTI ID: 7010317
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AUTOMOTIVE FUELS
COMBUSTION CHAMBERS
CONDUCTOR DEVICES
CONNECTORS
CONTROL EQUIPMENT
DAMPING
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NOZZLES
PUMPS
STORAGE
VALVES