Patent ID: 6912479
Filing Date: 2005-06-28
Classification: F15B,G01N

Abstract:
1. In a heavy equipment having a hydraulic circuit comprising a hydraulic pump, a hydraulic motor, a major adjusting valve, a pipe, a hose, a hydraulic tank and an oil cooler, the improvement of an oil pollution degree diagnosis function, comprising: a sensor unit for oil to flow into an interior of the same from the hydraulic circuit and to measure an oil pollution state sensor value; a control unit to diagnose a normal/abnormal result value of the hydraulic circuit by an oil pollution state diagnosis program formed of a certain algorithm with respect to the sensor value; a communication unit which transfers the sensor and result values to the outside and receives a return value of a result of process from the outside; a storing unit which stores at least the result and return values; and a display unit which informs an oil pollution state to an operator based on the sensor value, result value and return value; whereby an oil pollution degree of the heavy equipment is measured by controlling the sensor unit, communication unit, storing unit and display unit by the control unit and is informed to the operator.