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Patents
  • Multi-Way Valve Design Patent (2006)

  • Utility Model Patent of Hydraulic Crane Multi-Way Valve (2006)

  • Utility Model Patent of Control valve on the Vehicle Combination of Truck Crane (2007)

  • Utility Model Patent of Manual Vacuum Type Proportional Pilot Control Valve Positioning Device (2007)

  • Utility Model Patent of High Pressure and Large Flow Multi-Way Valve (2008)

  • Utility Model Patent of Multi-Way Valve with Lock (2008)

  • Utility Model Patent of High Pressure Gear Pump Floating plates (2009)

  • Utility Model Patent of Forklift Priority of Merging Multi-Way Valve (2010)

  • Utility Model Patent of Multi-Valve Flow Proportional Distributor (2011)

  • Utility Model Patent of One-Way Lock Off Valve Hydraulic Cranes (2011)

  • Mechanical Locking Cylinders Patent (2012)

  • No Leaks Double-Acting Hydraulic Cylinder Multistage (2013)

  • Double-Pump Load Sensing Hydraulic System Patent (2013)

Sichuan Changjiang Hydraulic Components Co., Ltd.

Tel.: +86-830-3589306
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