Abstract:
A jerk-type fuel injector pump having a rotatively adjustable plunger with differently inclined helix portions controlling the delivery rate in the low and high ranges of adjustment, and an engine speed-limiting governor having flyweights operative under the control of a relatively high rate spring to limit the pump delivery rate over approximately the upper half of the engine speed range.
Abstract:
A mechanical governor for a compression-ignition engine is provided in a preferred embodiment with separate springs for idle and maximum speed control plus a load control spring which modifies the effective rate of the maximum speed spring near the maximum speed range so as to flatten the engine peak load curve. A wave spring washer placed between the high speed spring plunger flange and its seat may be used as the load control spring.