Pumps – Expansible chamber type – Pumping member position controlled port
Patent
1990-05-03
1992-08-04
Smith, Leonard E.
Pumps
Expansible chamber type
Pumping member position controlled port
417494, 417499, 123449, F04B 704, F02M 4108
Patent
active
051353679
ABSTRACT:
A fuel injector for diesel engines, having at least one pump plunger (1), which is sealingly guided in a plunger bushing (2) and, together with said bushing, defines a high-pressure space (5). The pump plunger (1) has an internal suction valve (6) which creates a fuel injection pump having a small dead volume in the high-pressure region and low construction cost. The suction valve (6) may be provided with a cone-shaped compression spring (7) disposed in the high-pressure region (5) or with a stroke limiting stop (28, 28a).
REFERENCES:
patent: 1640579 (1927-08-01), Severin
patent: 2101221 (1937-12-01), L'Orange
patent: 2633082 (1953-03-01), McFarland
Finsterwalder Gerhard
Michels Hans G.
Rizk Reda
Kloeckner-Humboldt-Deutz AG
Kocharov Michael I.
Schwab Charles L.
Smith Leonard E.
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