Pumps – Expansible chamber type – Pumping member position controlled port
Patent
1993-02-10
1994-11-15
Bertsch, Richard A.
Pumps
Expansible chamber type
Pumping member position controlled port
123503, F04B 704
Patent
active
053642430
ABSTRACT:
In a fuel injection pump including a plunger barrel provided with a fuel pressure chamber, a plunger which reciprocates within this plunger barrel to take in fuel from a fuel reservoir chamber and deliver this fuel from the fuel pressure chamber under pressure, and a timing sleeve which is positioned between the plunger and the plunger barrel such that it slidably mates with the outside of this plunger, and on which a spill port is formed; a fuel injection pump is characterized by an impingement-cushioning cavity being formed on the surface of the inside wall of the plunger barrel in a position opposite the spill port of the timing sleeve along with the peripheral surface of the timing sleeve being formed in a certain shape corresponding to this impingement-cushioning cavity.
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Bertsch Richard A.
Diesel Kiki Co. Ltd.
Kocharov Michael I.
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