Distributor-type fuel injection pump with preliminary injection control device
Abstract
A distributor-type fuel injection pump is described for an internal combustion engine having at least one cylinder, the fuel injection pump comprising: (a) a housing having a fuel chamber defined therein; (b) fuel supply means for supplying fuel to the fuel chamber under pressure dependent upon engine r.p.m.; (c) a barrel mounted within the housing and having a distribution hole communicating with the engine cylinder; (d) a plunger mounted within the barrel for axial and rotary motion therein and defining jointly with the barrel a pump working chamber communicating with the fuel chamber. The plunger has a main discharge port communicating at one end with the pump working chamber and alignable with the distribution hole for effecting a main fuel injection, and a preliminary discharge port communicating with the pump working chamber and alignable with the distribution hole before the alignment of the main discharge port with the distribution hole, thereby effecting a preliminary fuel injection before the main injection; and (e) means operatively connected with the plunger and actuatable in response to pressure within the fuel chamber, for controlling fuel injection timing. The control means includes a first means, actuatable in response to the pressure within the fuel chamber,more »
- Inventors:
- Publication Date:
- OSTI Identifier:
- 6885419
- Patent Number(s):
- US 4635599
- Assignee:
- Diesel Kiki Co., Ltd., Tokyo
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: Filed date 13 Jun 1985
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; INTERNAL COMBUSTION ENGINES; CONTROL SYSTEMS; FUEL INJECTION SYSTEMS; ALIGNMENT; CYLINDERS; PRESSURE DEPENDENCE; PRESSURE EFFECTS; PUMPS; ROTATION; TIMING CIRCUITS; ELECTRONIC CIRCUITS; ENGINES; FUEL SYSTEMS; HEAT ENGINES; MOTION; 330100* - Internal Combustion Engines
Citation Formats
Taira, S, and Ishibashi, T. Distributor-type fuel injection pump with preliminary injection control device. United States: N. p., 1987.
Web.
Taira, S, & Ishibashi, T. Distributor-type fuel injection pump with preliminary injection control device. United States.
Taira, S, and Ishibashi, T. 1987.
"Distributor-type fuel injection pump with preliminary injection control device". United States.
@article{osti_6885419,
title = {Distributor-type fuel injection pump with preliminary injection control device},
author = {Taira, S and Ishibashi, T},
abstractNote = {A distributor-type fuel injection pump is described for an internal combustion engine having at least one cylinder, the fuel injection pump comprising: (a) a housing having a fuel chamber defined therein; (b) fuel supply means for supplying fuel to the fuel chamber under pressure dependent upon engine r.p.m.; (c) a barrel mounted within the housing and having a distribution hole communicating with the engine cylinder; (d) a plunger mounted within the barrel for axial and rotary motion therein and defining jointly with the barrel a pump working chamber communicating with the fuel chamber. The plunger has a main discharge port communicating at one end with the pump working chamber and alignable with the distribution hole for effecting a main fuel injection, and a preliminary discharge port communicating with the pump working chamber and alignable with the distribution hole before the alignment of the main discharge port with the distribution hole, thereby effecting a preliminary fuel injection before the main injection; and (e) means operatively connected with the plunger and actuatable in response to pressure within the fuel chamber, for controlling fuel injection timing. The control means includes a first means, actuatable in response to the pressure within the fuel chamber, for effecting the preliminary fuel injection when the pressure within the fuel chamber is at less than a predetermined value, and a second means, actuatable in response to the pressure within the fuel chamber, for preventing the preliminary fuel injection when the pressure within the fuel chamber is above the predetermined value.},
doi = {},
url = {https://www.osti.gov/biblio/6885419},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 13 00:00:00 EST 1987},
month = {Tue Jan 13 00:00:00 EST 1987}
}