Title:
ELECTROMAGNETIC UNIT FUEL INJECTOR
Document Type and Number:
Japanese Patent JPS6073046
Kind Code:
A
Abstract:
An electromagnetic unit fuel injector (1) for use in a . diesel engine includes a housing (5) with a pump therein defined by an externally actuated plunger (27) reciprocable in a bushing (12) and defining therewith a pump chamber (31) for the discharge of fuel to a spring-biased, pressure-actuated fuel injection nozzle (70). The pump chamber (31) is also connected to a fuel chamber (32) via a solenoid-actuated, normally-open, pressure-balanced control-valve- controlled passage (45) to permit the ingress and egress of fuel. The solenoid (2) and control valve (50) are located concentrically with respect to the plunger (27). During a pump stroke, the solenoid (2) can be energized to move the valve (50) in position to block flow from the pump chamber (31) to the fuel chamber (32) so as to allow the pressurization of fuel by the pump to effect discharge of fuel from the injection nozzle (70).
Inventors:
RICHIYAADO ESU NATSUPU
Application Number:
JP18547084A
Publication Date:
April 25, 1985
Filing Date:
September 06, 1984
Export Citation:
Assignee:
GEN MOTORS CORP
International Classes:
F02M57/02; F02M59/36; F02M59/46; F02B3/06; (IPC1-7): F02M51/00; F02M57/02
Foreign References:
| US4129253A | 1978-12-12 |
Attorney, Agent or Firm:
Masao Okabe (5 others)
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