Pumps – Expansible chamber type – Moving cylinder
Patent
1983-11-18
1985-04-23
Freeh, William L.
Pumps
Expansible chamber type
Moving cylinder
417503, 123450, 123179L, F04B 1902, F02M 3900, F02N 1700
Patent
active
045127271
ABSTRACT:
A fuel injection pump of the rotary distributor type includes a rotary distributor member having a bore in which is slidable a plunger which can be actuated by a cam lobe. A stop ring is provided to limit the outward movement of the plunger by fuel which is supplied to the bore through an inlet passage in the distributor member when the latter is in register with an inlet port. The stop ring has a surface which will permit further outward movement of the plunger following cessation of fuel flow through the inlet port and passage and such additional movement to allow an excess of fuel to be delivered is allowed by fuel flow through an additional inlet passage. This passage is controlled by valve means which is preferably only opened when the engine is at rest.
REFERENCES:
patent: 2853947 (1958-09-01), Evans
patent: 3489091 (1970-01-01), Becker
patent: 4083345 (1978-04-01), Davis
patent: 4310291 (1982-01-01), Green et al.
patent: 4348995 (1982-09-01), Jefferson et al.
patent: 4358256 (1982-11-01), Jefferson
patent: 4362140 (1982-12-01), Jefferson et al.
patent: 4401084 (1983-08-01), Jarrett et al.
patent: 4422425 (1983-12-01), Jefferson
patent: 4446835 (1984-05-01), Mowbray
Freeh William L.
Lucas Industries Public Limited Company
Neils Paul F.
LandOfFree
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