Method and apparatus for injecting fuel for a diesel engine
An apparatus is described for injecting fuel into a combustion chamber for a diesel engine in which an intended fuel injection is carried out by way of the steps of extracting plunger actuating force from an engine driving system via a cam actuating mechanism, accumulating the plunger actuating force in a resilient means in the form of a spring for a certain period of time, releasing the accumulated force by way of deenergization of electromagnetic force and actuating the plunger in a stationary nozzle body affixed to the combustion chamber with the accumulated force to inject fuel into the combustion chamber via stationary injection holes. The apparatus consists of: a plunger actuating force extracting system including a cam rotated by means of a cam shaft, a vertically extending actuating rod and a rocker arm in operative connection with the upper end of the actuating rod at the one free end thereof, a coil spring serving as a plunger actuating force accumulating means, the coil spring being disposed between the other free end of the rocker arm and the upper end part of the plunger, and an electromagnetic coil adapted to release the accumulated plunger actuating force by way of demagnetization which is effected at a predetermined time, the electromagnetic coil being in operative association with the plunger in the nozzle body so as to open the latter during magnetization which is effective in raising up the plunger of which upper part serves as a magnetic core.
- Assignee:
- Kabushiki Kaisha Komatsu Seisakusho, Tokyo
- Patent Number(s):
- US 4599983
- OSTI ID:
- 5504046
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
COMBUSTION CHAMBERS
DEMAGNETIZATION
DESIGN
DIESEL ENGINES
ELECTROMAGNETISM
ENGINES
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MAGNET CORES
MAGNETISM
NOZZLES
OPERATION
SHAFTS
TIME DEPENDENCE