Basics Of Automobile

In engaged condition the clutch plate is sandwiched

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Unformatted text preview: HANISM FLYWHEEL CLUTCH DRIVEN PLATE CLUTCH PRESSURE PLATE GEAR BOX ENGINE RELEASER BEARING ENGAGE CLUTCH FORK CLUTCH PEDAL FREE CLUTCH ENGAGED CLUTCH MECHANISM FLYWHEEL CLUTCH DRIVEN PLATE CLUTCH PRESSURE PLATE GEAR BOX ENGINE RELEASER BEARING DIS-ENGAGE CLUTCH FORK CLUTCH PEDAL PRESSED CLUTCH DISENGAGED CLUTCH MECHANISM 1. CLUTCH DRIVEN PLATE - Clutch pressure plate is the link between the engine & gear box transmitting power & torque to the driveline. In engaged condition, the clutch plate is sandwiched between the engine flywheel & the Clutch pressure plate. 2. CLUTCH PRESSURE PLATE - Clutch pressure plate ensures that the clutch plate is clamped tightly to the flywheel in engaged condition and releases the clutch plate from flywheel in disengaged condition. The drivers’ foot effort is transmitted to the clutch pressure plate through the actuation mechanism and the releaser bearing. 3. RELEASER BEARING 4. CLUTCH FORK SAMPLE LEAFLET Clutch2.exe MARSHAL 2000 CLUTCH : MECHANICALLY ACTUATED, SINGLE DRY PLATE 23.5 cm DIA SYSTEMS IN AN AUTOMOBILE A. POWER TRAIN SYSTEM • POWER PLANT (POWER GENERATION - ENGINE) • ENGINE • FUEL SYSTEM • INTAKE SYSTEM • EXHAUST SYSTEM • COOLING SYSTEM • DRIVE LINE (POWER TRANSMISSION ) • CLUTCH • GEAR BOX/TRANSMISSION • TRANSFER CASE • DIFFERENTIAL • WHEELS/TYRES B. RUNNING SYSTEM • SUSPENSION • STEERING • BRAKING C. COMFORT SYSTEM • HVAC/AC/HEATER SYSTEM • SEATING/UPHOLSTRY/FACIA/INSTRUMENTS • AUDIO/VIDEO/GPS GEAR BOX (TRANSMISSION) GEAR BOX MODIFIES & TRANSMITS THE TORQUE OF THE ENGINE TO THE DRIVE LINE. THE AMOUNT OF MODIFICATION OF TORQUE REQUIRED IS DECIDED BY THE DRIVER AND IS ACTUATED BY A GEAR LEVER WHICH SELECTS A REQUIRED GEAR RATIO. COMPONENTS OF GEAR BOX • GEAR BOX • GEAR SELECTION LEVER GEAR BOX (TRANSMISSION) GEAR BOXES ARE CLASSIFIED AS : • STEPPED TRANSMISSION • STEPLESS TRANSMISSION (USED MOSTLY IN 2 WHEELERS) STEPPED TRANSMISSION ARE GEAR BOXES WHICH HAS DEFINED STEPS OR GEAR RATIOS. THE NUMBER OF STEPS CAN BE 3 , 4 OR 5. STEPPED TRANSMISSIONS CAN BE FURTHER CLASSIFIED AS MANUAL TRANSMISSION WHERE THE REQUIRED STEP OR GEAR IS SELECTED BY THE DRIVER, AS PER THE DRIVING REQUIREMENT AUTOMATIC TRANSMISSION WHERE THE STEP OR GEAR RATIO IS AUTOMATICALLY SELECTED, AS DECIDED BY A ECU BASED ON INFORMATION FROM VARIOUS SENSORS GEAR LEVER GEAR BOX (MANUAL TRANSMISSION) SHIFT RAILS MAIN SHAFT FOURTH GEAR SYNCHRONISER FROM CLUTCH FIFTH GEAR FIRST GEAR SECOND GEAR COUNTER SHAFT THIRD GEAR TO PROP SHAFT REVERSE GEAR NOT SHOWN GEAR BOX GEAR RATIO - Gear ratios are gear reduction steps in the gear box. A gear reduction multiplies the engine torque by the gear ratio amount. Torque requirement at the wheel depends operating conditions. For example : To move a vehicle from standstill requires much more torque than the peak torque of the engine. Hence the torque is multiplied by the first gear ratio. Once the vehicle is started and moved using first gear, it requires less torque at the wheels to keep it moving. Hence it requires no multiplication or very less multiplication. If the vehicle suddenly encounters a gradient , it will require more torque at the wheels to keep the ve...
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