Back to results
US 11,247,879 B2Granted
Winch system
AssigneeMhwirth AS
InventorEivind Gimming Stensland
Life of this patent
Estimating the term…
Abstract
A winch system for driving an output includes a gear connected to the output, an electric motor connected to the gear, and a hydraulic motor connected to the gear. The electric motor and the hydraulic motor are distribute energy via the gear to the output.
Claims12
A winch system for driving an output, the winch system comprising:
- a gear connected to the output;
- an electric motor connected to the gear;
- a hydraulic motor connected to the gear;
- an electric power system;
- and
- a hydraulic power system,
- wherein,
- the electric motor is connected to the electric power system,
- the hydraulic motor is connected to the hydraulic power system,
- the electric motor and the hydraulic motor are configured to distribute energy via the gear to the output and to distribute the energy between each other via the gear, and,
- the energy distributed between the electric motor and the hydraulic motor is further distributed to the respective electric power system and hydraulic power system.
8 more elements
A method for operating a winch system, the winch system being configured to drive an output,
- the winch system comprising,
- a gear connected to the output,
- an electric motor connected to the gear,
- a hydraulic motor connected to the gear,
- an electric power system, and
- a hydraulic power system,
- wherein,
- the electric motor and the hydraulic motor are configured to distribute energy between each other and to the output via the gear,
- the electric motor is connected to the electric power system,
- the hydraulic motor is connected to the hydraulic power system, and
- the energy distributed between the electric motor and the hydraulic motor is further distributed to the respective electric power system and hydraulic power system,
- the method comprising, during a hoisting operation, a lowering operation, or an idle state of the winch system:
- distributing energy from the electric motor to the hydraulic motor via the gear, or
- distributing energy from the hydraulic motor to the electric motor via the gear.
11 more elements
Dependencies are inferred from the claim text.