The Nissan note teardown was performed in respectable 2014 through the Automotive an innovation Innovation facility of the Hiroshima commercial Promotion Organization. The teardown of the major safety technologies, such together the around View screen with moving Object Detection (MOD) role and emergency braking, and the progressed driver assistance systems is report in Nissan keep in mind (Versa Note) Teardown (Part 1).
This report (Part 2) describes teardown of the supercharger, engine, and the Xtronic CVT v auxiliary gearbox. It concentrates specifically top top the air circulation to the engine, the supercharger journey method, and engine components. In enhancement to the image taken in ~ the teardown occasion venue, the report will manipulate the photograph of the cutaway design of the CVT displayed by Jatco in ~ the Automotive engineering Exposition 2014 held in May.
Archived teardown reports:
Honda Accord Hybrid (Feb. 2014) part 1: PCU and also vehicle chassis part 2: Battery and also electric servo brake part 3: drive unit
Honda right Hybrid (Dec. 2013) part 1: Battery components & brake system part 2: Engine and also transmission
Toyota Aqua (Prius c) (Nov. 2012) component 1: part suppliers and also battery components part 2: Hybrid solution behind the 35.4km/liter (53 mpg city) car
Nissan Leaf component 1: Benchmarking systems and components because that EV (Mar. 2012) part 2: Main components disassembled (Sep. 2012) component 3: human body cutaway (Nov. 2012)
Four-lobed Roots type supercharger manufactured by Eaton. * The 1.2-liter 3-cylinder engine has smaller displacement 보다 the 1.5-liter 4-cylinder engine the is supplied in the previous Nissan Note. This leads to higher fuel efficiency and also lower travelling performance. The supercharger is offered to comprise for the poorer control performance. * When contrasted to the turbocharger, the supercharger responds much faster to the accelerator pedal operation and can be engaged and also disengaged by a clutch.
Xtronic CVT through auxiliary gearbox made by Jatco.
(Note) A supercharger takes power from the engine"s crankshaft to journey its compressor. A turbocharger bring away off power from the engine"s exhaust gas to drive the turbine associated to the compressor.
A optimal view of the engine room. The white arrow points come the wait cleaner through ROKI, the red arrowhead to the entry manifold, the blue arrow to the start-stop device battery by Shin-Kobe electrical Machinery, and also the yellow arrowhead to the infection ECU by Hitachi Automotive Systems. The green arrowhead points to the plastic wait intake duct through Excell Corporation the interconnects the supercharger intercooler, intake manifold and also air manage valve.
A behind bottom see of the vehicle. The white arrow points come the fuel tank through Inergy Automotive Systems, the red arrow to the pre-silencer by Futaba Industrial, the blue arrowhead to the silencer also by Futaba Industrial, and the yellow arrowhead to the catalytic converter. The fuel tank and also exhaust pipe room positioned in the exact same layout as in the Nissan March the shares the platform.
A front best view that the engine room after ~ the hood and also bumper have been removed. The white arrowhead points to the supercharger intercooler and the red arrowhead to the air-conditioning condenser. One engine cooling radiator is hidden behind the condenser. The intercooler, condenser, and radiator are offered by Behr. The condenser and radiator are made in India. The blue arrowhead points come the horn by Miyamoto electric Horn.
A front watch of the car without the intercooler, condenser and also radiator. The white arrow points to the Xtronic CVT v auxiliary gearbox in the drive unit by Jatco. The red arrowhead points to the engine alternator and also the blue arrowhead points come the starter motor, both provided by Mitsubishi Electric. The yellow arrowhead points to the air-conditioning compressor by Calsonic Kansei.
The drive unit eliminated from the engine room and seen from the driver seat. The white arrow points to the Eaton supercharger and also the red arrow to the exhaust manifold concealed in a silver cover. The blue arrowhead points to ROKI"s outlet duct the interconnects the supercharger and the supercharger intercooler.
The journey unit watched from the auto right. Two belts room used between the supercharger outlet duct and the engine. The white arrow points come the belt that drives the alternator, compressor and also engine cooling water pump. The red arrow points to the supercharger journey belt (10mm wide).
Supercharger engagedSupercharger disengaged
* The air flow is presented by the blue arrow. The red line mirrors the journey belt. * The supercharger is involved when acceleration is important; that is disengaged when greater fuel performance is important.
Air beginning the waiting cleaner flows to the supercharger when the air control valve is closed. The supercharger cd driver the compressor via the journey belt to compress the air. The compressed wait is cooled through the intercooler and also flows to the intake manifold.
Air entering the wait cleaner flows to the input manifold when the air control valve is open. The supercharger"s electromagnetic clutch disengages the supercharger belt pulley and also deactivates the supercharger.
The supercharger after eliminated from the engine. It is fitted above the exhaust manifold in the direction displayed in the left-hand photo. The right-hand picture shows the ago of the supercharger. The supercharger housing is supplied by Ahresty Corporation. The white arrow points to the air manage valve by Aisan Industry, the red arrow to Eaton"s compressor, the green arrowhead to the compressor journey pulley, and the blue arrow to Gates"s belt tensioner. The tensioner bearing in the belt tensioner pointed by the yellow arrowhead is made at NSK"s tree in China. The wait entering the air cleaner flows to the supercharger or come the entry manifold indigenous the port pointed through the purple arrow.
Air regulate valveElectromagnetic clutch
Aisan Industry"s air regulate valve after gotten rid of from the supercharger. When the supercharger is disengaged, the valve opens so that the waiting entering the waiting cleaner is command to the input manifold. As soon as the supercharger is engaged, the valve close the door to direct the air to the supercharger.
Ogura Clutch"s electromagnetic clutch (pointed by the white arrow) is located between two pulleys. The red arrow points to the journey belt idler. The supercharger belt is equipment to the pulley-block pointed by the blue arrow (the belt is removed and also not displayed in the photo). The belt that connects come the engine"s crankshaft is fitted to the pulley pointed by the green arrowhead (the belt is removed and not shown in the photo). To connect the supercharger, the pulleys pointed by blue and also green arrows are meshed through the electromagnetic clutch so that the engine power istransfer come the supercharger.
Eaton"s compressor is provided to compress the air. The 3 rods pointed by the white arrow are mated with the 3 holes pointed through the red arrow in the compressor"s rotor. When the engine strength is transmitted via the electromagnetic clutch to the supercharger, the supercharger wheel (pointed through the blue arrow) and the compressor rotor begin rotating to compress the air. The compressed air is discharged with the opening pointed by the yellow arrow and flows come the outlet duct.
ROKI"s plastic outlet duct connect the supercharger come the intercooler. The photo shows the back of the outlet duct. The compressed wait from the compressor beginning the harbor pointed by the white arrow and also is discharged indigenous the port pointed by the red arrow. To alleviate the noise brought about by the supercharger during operations, a hole cavity is provided in the outlet duct pointed by the blue arrow. The outlet duct has actually internal diameter of 80 to 90mm.
IntercoolerPlastic wait intake duct
Behr"s supercharger intercooler. Wait is compressed by the supercharger and becomes hot. That is cooled through the intercooler prior to it flows to the input manifold.
Excell"s plastic waiting intake duct. The white arrowhead points to the port that connects come the supercharger intercooler. The red arrowhead points to the port the connects come the input manifold. The blue arrowhead points come the port that connects come the air manage valve. The yellow arrow points to the air-flow meter offered by Hitachi Automotive Systems.
A top view of the engine without the wait cleaner and also intake manifold. The driver"s chair is positioned in ~ the top of the photo. The white arrowhead points to the ignition coil by Hitachi Automotive equipment Hanshin. The red arrowhead points to Denso"s fuel injection an equipment and the blue arrowhead to the EGR valve by Mitsubishi Electric.
The drive unit there is no the CVT, alternator and also compressor as checked out from the front ideal of the vehicle. The white arrow points come the space where the starter motor was placed before removal. The red arrowhead points to the engine cooling water pump by Magna.
A see of the engine as watched from the left next of the auto where the CVT is installed. The exhaust manifold and also supercharger room removed. The flywheel pointed through the white arrowhead is 265mm in diameter. The red arrow points come the EGR valve by Mitsubishi Electric. The blue arrow points come the high-pressure fuel tank of Denso"s direct-injection system hidden under the cylinder head cover.
A watch of the engine without the cylinder head cover and chain situation as checked out from the driver seat. Two chains are linked to the crankshaft to journey the camshaft and also the engine oil pump respectively. The white arrow points come the engine oil pump (not clearly shows in the photo).
Cylinder headCylinder block
A check out of the cylinder head as watched from the cylinder block side. The 2 upper valves in every cylinder room the intake valves, the reduced two room the exhaust valves. Valves are roughly 100mm long.
A view of the cylinder block without the cylinder head and also cam chain. The white arrow points come the engine oil pump. The red arrowhead points come the area whereby the engine cooling water pump to be installed prior to removal.
Intake manifoldFuel injector
The entry manifold is seen v Denso"s swirl manage valve in the input port. The red arrow points come the swirl actuator the controls the swirl regulate valve. The white arrow points come the throttle body by Hitachi Automotive Systems. The intake harbor of the throttle body is 55mm in diameter.
Denso"s direct fuel injection system. It consists of the high-pressure fuel pump (pointed through the white arrow), high-pressure injector (red arrow) and also fuel push sensor (blue arrow). Just one injector is shown on the photo but the Note"s 3-cylinder engine actually has three injectors.
Engine oil pumpStarter motor
Inside of the engine oil pump. The pump is thrust via chain connected to the crankshaft.
The starter engine by Mitsubishi Electric. The pinion gear is situated where pointed by the arrow. It cd driver the ring equipment of the flywheel to begin the engine.
The alternator by Mitsubishi electrical uses the regenerative power from deceleration to fee the battery. The suppresses electric power generation in non-deceleration mode.
The air conditioning compressor by Calsonic Kansei. Its pulley is 95mm in diameter.
CanisterEngine management System (EMS)
Mahle"s set off carbon canister is fitted in the prior occupant"s next of the engine room.
The Engine administration System (EMS) through Hitachi Automotive solution is fitted in the prior occupant"s side of the engine room.
A see of the CVT removed from the drive unit and also seen indigenous the engine side. The part pointed by the white arrow is meshed through the driveshaft to drive the front wheels. The red arrow points to the rotation sensor the the second (driven) pulley. The CVT housing is gave by Ahresty.
A see of the CVT viewed from the auto left. The white arrow points to the transmission oil pump by JTEKT, the red arrow to the rotation sensor of the major (drive) pulley, the blue arrowhead to the variety switch, the green arrow to the rotation sensor of the second (driven) pulley, and also the yellow arrowhead to the vehicle speed sensor.
CVT cutaway model
The cutaway version of the CVT v an auxiliary gearbox (named CVT7 by Jatco) exhibited by Jatco in ~ the Automotive design Exposition hosted in may 2014. The white arrow points to the main (drive) pulley, the red arrow to the second (driven) pulley, and the blue arrowhead to the (2-speed) assistant gearbox. The usage of the auxiliary gearbox has actually made it possible to increase the transmission gear ratio when reducing the pulley-block size.
Transmission ECUTransmission oil pump
Transmission ECU offered by Hitachi Automotive solution is situated near the former occupant"s seat in the engine room. The is equipment in call with the battery.