Sprag clutch - aircraft engine, Other Engineering

Sprag Clutch :

Sprag clutches are used to provide the disconnect mechanism between the starter motor and the engine. The clutch will transmit drive from the starter motor, but will disconnect the drive when the engine speed exceeds the starter. The clutch consists of two smooth concentric drive faces and between them a cage containing many elongated figure of eight shaped cams called "sprags". All the surfaces are hardened to reduce wear, and are lubricated by oil. The sprag are spring loaded in contact with the starter drive so that when the shaft starts to rotate the sprags stand up and contact the engine drive due to the cam action of their shape. See Figure 13.6. As engine RPM accelerates its drive will be faster than the starter motor and the clutch will automatically dis-engage as sprags get pushed back to their minimum height position.

Sprag clutches are used on most types of starter motor or in drives where one way drive is required such as helicopter gearboxes.

2318_Sprag Clutch.png

Posted Date: 9/12/2012 4:10:23 AM | Location : United States







Related Discussions:- Sprag clutch - aircraft engine, Assignment Help, Ask Question on Sprag clutch - aircraft engine, Get Answer, Expert's Help, Sprag clutch - aircraft engine Discussions

Write discussion on Sprag clutch - aircraft engine
Your posts are moderated
Related Questions
Wave function is a complex quantity, which itself has no physical significance. But square of its magnitude gives the probability of finding a particle in a given volume of space a

#As an investment advisor you have been approached by a client called Ramesh, who wants some help in investment related matters. Ramesh is currently 45 years old and has Rs 6, 00,

what things require for finance project on capital budgeting?

how to crate pareto charts eith matlab?

a rectangular beam of size 40mm*60mm is subjected to bending. the maximum bending stress is limited to 75N/mm^2. find the moment of resistance of beam section.

connecting probe in CRO causes

i got a msg from u is that Dear Tutor Congratulations!! You are successfully done with the process of quality check, now we are sending you the registration form


#questionYour search - design a trapezoidal retaining wall(assume dimensions) ,bulk density 15kN per metre cube ,coefficient of friction of 0.7,angle of internal friction 15degres

Describe the method of undertaking an anemometer traverse for a airflow