Earth working – Processes
Patent
1977-02-25
1978-11-14
Stouffer, Richard T.
Earth working
Processes
60431, 172 3, 172 7, 172430, A01B 63112
Patent
active
041251660
ABSTRACT:
A control system and method for loading an engine driven apparatus such as an engine driven tractor having a plough the depth of which can be regulated by a suitable control system. The engine has a fuel injection pump which includes a maximum fuel feed limiting structure, a stop, and a structure for urging the maximum fuel feed limiting structure against the stop when an overload is imposed on the engine. Under the latter overload conditions the force with which the maximum fuel feed limiting structure is urged against the stop is detected by way of a force transducer such as a strain gauge or hydraulic pressure transducer, so that a signal indicative of the overload is produced and can be utilized for reducing the load on the engine. Thus, in the case of an engine-driven tractor which operates a plough, the latter signal can be utilized to raise the plough so as to reduce the load on the engine.
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patent: 3078656 (1963-02-01), Jedrzykowski
patent: 3358774 (1967-12-01), Lipinski
patent: 3490538 (1970-01-01), Lipinski
patent: 3698249 (1972-10-01), Weaver
patent: 3751903 (1973-08-01), Bauchet et al.
patent: 3803574 (1974-04-01), Logue
patent: 3871344 (1975-03-01), Pigeroulet et al.
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