3UR-FE ENGINE


  1. General


    1. The oil separator portion of the cylinder head covers has been made compact through the use of an independent separator case. This contributes to making the entire engine compact.

    2. Fresh air is drawn from the right and left bank cylinder head covers to improve the ventilation inside the engine and improve the deterioration resistance of the engine oil.

      A01W6EPC01
      *1 Throttle Valve *2 Oil Separator Portion
      *3 Cylinder Head Cover RH *4 Separator Case
      *5 PCV Valve *6 Cylinder Head Cover LH
      *7 Intake Manifold - -
      *a Blowby Gas *b Fresh Air

  2. Separator Case


    1. A plastic separator case is provided between the cylinder block and the intake manifold in order to separate the engine oil that is included in the blowby gas.

    2. An inertial impaction system is used in the construction for separating the engine oil in the separator case. The blowby gas that contains engine oil hits the plate, causing the engine oil to adhere and accumulate on the plate. Then, the oil drips down by way of gravity. Thus, this system efficiently separates the engine oil from the blowby gas. This improves the rate of the collection of the engine oil and reduces the amount of engine oil consumption.

      A01W6HRC01
      *1 Intake Manifold *2 PCV Valve
      *3 Cylinder Block *4 Separator Case
      *5 Plate - -
      *a Blowby Gas Containing Engine Oil *b Blowby Gas
      *c Engine Oil *d From Cylinder Block
      *e To Intake Manifold *f To Oil Pan
      *g Cross-sectional Image of Separator Case - -