Crane, in particular mobile port crane, comprising a hybrid drive system
US9056752B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2011 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Feb 18, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C13/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A crane comprising a diesel-electric drive, the three-phase generator of which supplies an AC voltage circuit, further comprising a DC voltage circuit connected to the AC voltage circuit, electric motors which drive at least one rotating mechanism, a lifting mechanism and a luffing mechanism of the crane, at least one brake resistor, and a short-term energy store, which is connected to the AC voltage circuit or to the DC voltage circuit for the intermediate storage of excess energy. At least one of the electric motors is connected to the AC voltage circuit and at least one is connected to the DC voltage circuit, and the AC voltage circuit is connected to the DC voltage circuit via a rectifier such that an energy exchange is possible between the AC voltage circuit and the DC voltage circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.