Mumbai University > MECH > Sem 8 > Automobile Engineering

Marks: 5 M

Year: Dec 2014, May 2014, Dec 2013, May 2013, Dec 2012

• The fluid flywheel is used in cars with automatic transmission.
• It consists of two members; the driving member is attached to the engine flywheel and the driven member to the transmission shaft.
• There is no direct contact between the two members. The two rotors are always filled with fluid of suitable viscosity.
• A simplified diagram representing the fluid flywheel is shown. At start tube X is rotating say at N rpm and Y tube is stationary.
• With the movement of fluid in X and Y, Y also starts rotating but at a lower speed.
• The speed goes on increasing till the speed equals to N rpm, then the coupling is fully engaged.