Patents Assigned to Trinova S.p.A.
  • Hydraulic circuit with a booster circuit for operating the working members of earth-moving machines
    Patent number: 4845948
    Abstract: A hydraulic operating circuit for working members of earth-moving machines includes linear and rotary hydraulic actuators each of which is associated with a respective hydraulic distributor supplied from a principal supply and with a pressure compensator of the load-sensing type. A re-supply circuit is also associated with one or more of the rotary actuators for integrating the leakage and includes two anticavitation valves and a valve for boost-feeding the anticavitation valves from the principal supply.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: July 11, 1989
    Assignee: Trinova S.p.A.
    Inventors: Piero Tha, Gerry Warren