Pumps – Expansible chamber type – Pumping member position controlled port
Patent
1977-11-25
1979-08-07
Croyle, Carlton R.
Pumps
Expansible chamber type
Pumping member position controlled port
123139AD, F04B 704, F02M 5926
Patent
active
041636341
ABSTRACT:
A fuel pump plunger in an injection pump is formed with a shallow groove circumscribed about the periphery between the scroll edge and the pumping end to level off pressure peaks in the injected fuel and to retard timing during deceleration of an engine due to an imposed load.
REFERENCES:
patent: 2535535 (1950-12-01), Fleck
patent: 2565681 (1951-08-01), Fleck et al.
patent: 2638053 (1953-05-01), Nicolls
patent: 2696786 (1954-12-01), Fleck et al.
patent: 2713310 (1955-07-01), Muraszew
Caterpillar Tractor Co.
Croyle Carlton R.
Smith Leonard E.
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