Patents Assigned to Vovlvo Construction Equipment Holding Sweden AB
  • Hydraulic system with improved complex operation
    Patent number: 8387376
    Abstract: A hydraulic system with an improved complex operation is provided, which can prevent the generation of shock in a boom by delaying pressure supply during start and end of pilot signal pressure supplied to a spool for controlling an option device when a boom ascending operation and an operation of an option device are simultaneously performed or when such a simultaneous operation of the boom and the option device switches over to an independent operation of the boom.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: March 5, 2013
    Assignee: Vovlvo Construction Equipment Holding Sweden AB
    Inventor: Young Jin Son