Dash pot arrangement for distribution type fuel injection pump c

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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417289, F04B 4900, F02M 3900

Patent

active

039890210

ABSTRACT:
In one form of the invention, a rotatable and axially slidable plunger mounted within a fixed cylindrical plunger barrel forms with the barrel the casing bore and a spring biased electromagnetically driven axially slidable cut off sleeve, a dash pot chamber including a narrow radial gap between the cut off barrel and the pump casing body. The high pressure cut-off fuel may be directed to the chamber. Alternatively, the cut-off fuel may be directed to impact a deflector to produce an axial force modulating axial shift of the sleeve.

REFERENCES:
patent: 2679804 (1954-06-01), Bischoff
patent: 3667437 (1972-06-01), Dreisin
patent: 3779225 (1973-12-01), Watson
patent: 3791361 (1974-02-01), Hofmann
patent: 3797235 (1974-03-01), Eheim
patent: 3859972 (1975-01-01), Watson et al.

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