LUBRICATION SYSTEM DETAILS


  1. CONSTRUCTION


    1. Oil Pump


      1. Except on the models compliant with EURO 5+ emission regulations, a conventional cycloidal gear type oil pump is used.

      2. On the models compliant with EURO 5+ emission regulations, an electric variable oil pressure type oil pump, which can control the pressure of the engine oil in 2 stages in accordance with driving conditions, is used. As a result, energy loss caused by oil pump operation has been reduced to achieve improved fuel efficiency. The electric variable oil pressure type oil pump consists of a cycloidal gear type oil pump, relief valve with built-in sleeve valve, oil pressure switching valve and check valve. For details of the oil pressure control system, see the 1KD-FTV Engine Control section.

    2. Sub-assembly Oil Nozzle No. 1


      1. Sub-assembly oil nozzle No. 1 for cooling and lubricating the piston has been provided in the cylinder block.

      2. Sub-assembly oil nozzle No. 1 contains a check ball to prevent oil from being fed when the oil pressure is low. This prevents the overall oil pressure in the engine from dropping.

        A01DKU6E01
        Text in Illustration
        *1 Sub-assembly Oil Nozzle No. 1 *2 Cooling Channel
        *3 Piston *4 Check Ball
        *a View from Bottom Side *b Oil Jet Cross Section
        A01DKQ5 Engine Oil - -