Internal-combustion engines – Charge forming device – With fuel pump
Patent
1983-06-28
1985-07-23
Moy, Magdalen Y. C.
Internal-combustion engines
Charge forming device
With fuel pump
417490, 417533, F02M 5944
Patent
active
045303355
ABSTRACT:
In an in-line type fuel injection pump, the pump housing is formed with a plurality of pump accommodating spaces arranged in a line, each of which accommodates a pump assembly including a plunger barrel and a plunger slidably fitted therein, and adjacent ones of which are separated from each other by a partition wall portion extending therebetween. A plurality of fuel passages are formed in the pump housing, which extend from the outer wall surface of the pump housing to respective ones of the partition wall portions. Each of the fuel passages has an interior diameter larger than the width of the corresponding partition wall portion so that the inner end of the fuel passage opens in both of the two adjacent pump accommodating spaces to communicate them with each other. On the other hand, the outer end of each of the fuel passages opens in the outer wall surface of the pump housing. Part of the fuel passages serve as fuel intake passages, and the other as fuel retain passages, respectively.
REFERENCES:
patent: 2106932 (1938-02-01), Rosen
patent: 2975776 (1961-03-01), Nicolls
patent: 3759637 (1973-09-01), Vuaille
patent: 3818882 (1974-06-01), Leonov et al.
patent: 4222717 (1980-09-01), Clouse et al.
Diesel Kiki Co. Ltd.
Moy Magdalen Y. C.
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