Tài liệu đào tạo động cơ SKYACTIV trên ô tô Madza

NEW SKYACTIV-G 　 Development Concept 　　　　　　　 │ Strictly Confidential │ Specification Minimum injection amount 　　　　　　　 │ Strictly Confidential │ Changes Thermal management • Coolant control valve adopted Fuel spray improvement • The shape of the injector holes was changed • Maximum fuel pressure is higher • stages fuel injection Knock resistance improvement • Stepped shape piston Cylinder deactivation • Switchable-HLA adopted 　　　　　　　　 #1 #4 Mechanical resistance reduction • Low Mechanical resistance piston shape • Low Mechanical resistance oil ring • Bane type oil pump 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement ・ The shape of the injector holes was changed ・ Maximum fuel pressure is ・・・・・・ max.20 ⇒ max 30Mpa ・ Fuel injection during cold periods was divided into three stages 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement Previous NEW 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement AWS 　 Accelerated Warm-up System) 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement Previous New High load condition Low load condition 　　　　　　　 │ Strictly Confidential │ Fuel spray improvement 　　　　　　　 │ Strictly Confidential │ 10 Mechanical resistance reduction Zoom asymmetrical oil ring shape 　　　　　　　 │ Strictly Confidential │ 20 Mechanical resistance reduction Piston as seen from directly below The shape of this part is optimized Cross section A Cross section B The barrel shape of the piston skirt has been optimized to lower resistance and enhance quietness 　　　　　　　 │ Strictly Confidential │ 21 Mechanical resistance reduction Previous Trochoid type 　　 step control 　 Oil pressure switch FROM To PCM New Bane type 　 Continually control 　 Oil pressure/ temperature sensor +B ℃ Pa ― GROUND 　　　　　　　 │ Strictly Confidential │ 22 Cylinder deactivation for SKY-G2.5  The improvement in fuel economy by the cylinder deactivation  Deactivation the No,1 and No,2 cylinders by the swichable-HLA 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 HLA: hydraulic lush adjuster 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 OCV: Oil control valve Air intake Air intake #4 #1 Exhaus t Exhaus t During cylinder deactivation intake valve and exhaust valve are closed, ignition system does not work 　　　　　　　 │ Strictly Confidential │ 23 Cylinder deactivation for SKY-G2.5 Selection of deactivation cylinder 　　　　　　　 │ Strictly Confidential │ 24 Cylinder deactivation for SKY-G2.5 Function of S-HLA Cylinder mode Fulcrum Cylinder mode Fulcrum 　　　　　　　 │ Strictly Confidential │ 25 Cylinder deactivation for SKY-G2.5 Internal structure of S-HLA S-HLA (Switchable hydraulic lush adjuster) Plunger With Cylinder Deactivation w/o Cylinder Deactivation Syste System Inner housing Outer housing Lock piston Lock piston housing Lost motion spring S-HLA Adopted for No.1 and No.4 Cylinders HLA All cylinders are standard HLA 　　　　　　　 │ Strictly Confidential │ 26 Cylinder deactivation for SKY-G2.5 S-HLA switching mechanism by OCV cylinder mode Cylinder mode Fulcrum Fulcrum Cam lift Low oil pressure High oil pressure Lock piston does not move S-HLA is unfixed by releasing lock-piston with high oil pressure 　　　　　　　 │ Strictly Confidential │ 27 Cylinder deactivation for SKY-G2.5 OCV for Cylinder #4 OCV for Cylinder #1 The oil pipe for S-HLA is adapted (Inside of Cylinder head) S-HLA S-HLA 　　　　　　　 │ Strictly Confidential │ 28 Cylinder deactivation for SKY-G2.5 Internal working of OCV during cylinder deactivation operation Cylinder Mode Cylinder Mode armature Sol.coil shaft Drain Port Drain Port check valve S-HLA Gallery S-HLA Gallery valve filter from Main Gallery check valve: Open valve 　 Close check valve: Close valve 　 Open S-HLA Gallery oil flow in cyl mode oil flow in cyl mode from Main Gallery 　　　　　　　 │ Strictly Confidential │ 29 Cylinder deactivation for SKY-G2.5 Adopted the exhaust shutter valve ※The exhaust shutter valve cannot be removed because it is built into the 　　　　　　　 │ Strictly Confidential │ TWC 30 Cylinder deactivation for SKY-G2.5 Internal structure of torque converter 　 Cross section of torque converter with CPA 　 CPA flange CPA CPA roller 　 Previous torque converter 　 Damper L/U clutch 　 CPA 　　　　 Damper spring L/U piston Pendulum Pendulum spring 　　　　　　　 │ Strictly Confidential │ 31 Cylinder deactivation for SKY-G2.5 Engine oil level sensor adopted 　　　　　　　 │ Strictly Confidential │ 32 Cylinder deactivation for SKY-G2.5 Change the PCM connector 　 200 pin 0140-101A 0140-101B 186 pin 0140601A 0140601B 　　　　　　　 │ Strictly Confidential │ 33