Arrangement for regulation of power in a tractor o

专利名称：Arrangement for regulation of power in a

tractor or in a mobile work machine

发明人：Niskanen, Hannu,Huuskonen, Pekka申请号：EP94850088.9申请日：19940518公开号：EP0678413A1公开日：19951025

专利附图：

摘要：The invention concerns an arrangement for regulation of power in a tractor orin a mobile work machine, which tractor or work machine is provided with an engine (1),with a running power transmission (2) driven by the engine (1) by the intermediate of a

clutch, with hydraulic pumps (7) of the hydraulic system operated by a drive shaft (6)permanently connected with the crankshaft (4) of the engine, and with a power take-offmechanism (3) connected with said drive shaft (6) by the intermediate of a disconnectingclutch (8). The engine (1) has been constructed so that it can be switched to operateoptionally in at least two different power ranges, i.e. a higher power range and a lowerpower range. The running power transmission mechanism (2) has been dimensioned inaccordance with the maximum output of the lower power range of the engine (1), and thepower take-off mechanism (3) has been dimensioned in accordance with the maximumoutput of the higher power range of the engine (1). The system is provided with a controlthat prevents the use of the higher power range of the engine (1) unless the power take-off mechanism (3) and/or the other auxiliary equipment takes/take, from the engine (1),at least a torque (ΔM) equal to the difference between the torque corresponding to thehigher power range of the engine (1) and the torque corresponding to the lower powerrange of the engine (1).

申请人：VALMET TRAKTORI OY

地址：Tourulantie 12 SF-40100 Jyväskylä FI

国籍：FI

代理机构：Rostovanyi, Peter

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