A hybrid power unit 1 of a work machine includes an internal combustion engine 10 and an energy storage device 20 (for example a flywheel). The engine includes a crankshaft 11 for driving a load and the crankshaft is attached to the energy storage device via a torque fuse such as a clutch 40. The energy storage device can be charged by the engine to store energy that may be used to provide, when required, a boost to engine performance. The clutch may engage/disengage the energy storage device from the engine and/or control a clutch pressure. The clutch protects the crankshaft from shock loading and can slip to prevent over·torqueing of the crankshaft. The variable transmission of the engine has a first torque capability, and the clutch has a second torque capability which can be modified to be less than that of the variable transmission.
WORK MACHINE HYBRID POWER UNIT
ARBEITSMASCHINE MIT HYBRIDANTRIEB
UNITÉ DE PUISSANCE HYBRIDE D'ENGIN DE CHANTIER
2022-10-19
Patent
Electronic Resource
English
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