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Questions and Answers
What is the purpose of clutches in marine vessels?
What is the purpose of clutches in marine vessels?
To allow a separation of driver and driven components, usually engine to gearbox, alternator, or cargo pump.
In multi-engine systems, what advantage do clutches provide?
In multi-engine systems, what advantage do clutches provide?
They allow an engine to be disengaged for economy or maintenance, or reversing without stopping the engine.
What type of clutches are usually integral with the gearbox?
What type of clutches are usually integral with the gearbox?
We normally expect clutches to be integral with the gearbox.
How are air-operated clutches usually activated?
How are air-operated clutches usually activated?
What supplies the application force for the friction pads or linings in air-operated clutches?
What supplies the application force for the friction pads or linings in air-operated clutches?
What is the purpose of the compressed Control Air in air-operated clutches?
What is the purpose of the compressed Control Air in air-operated clutches?
How does compressed air expand in a radial air-operated clutch?
How does compressed air expand in a radial air-operated clutch?
Why are clutches important in marine engineering operations?
Why are clutches important in marine engineering operations?
What is the purpose of the radial air operated clutch?
What is the purpose of the radial air operated clutch?
How is slipping prevented in the clutch?
How is slipping prevented in the clutch?
What is the function of the springs in the clutch?
What is the function of the springs in the clutch?
How is air typically supplied to these clutches?
How is air typically supplied to these clutches?
What is the purpose of the emergency driving plate in case of internal air component failure?
What is the purpose of the emergency driving plate in case of internal air component failure?
Why is monitoring air pressure important in these clutches?
Why is monitoring air pressure important in these clutches?
What action does the expansion of the tube in the axial air operated clutches produce?
What action does the expansion of the tube in the axial air operated clutches produce?
How does the open construction of the clutch aid in pad cooling?
How does the open construction of the clutch aid in pad cooling?
What is the importance of using a four point support in a gearbox?
What is the importance of using a four point support in a gearbox?
Where should oil be sprayed in a gear casing and why?
Where should oil be sprayed in a gear casing and why?
How does applying oil to the teeth as they disengage help in reducing power losses and overheating in high speed gears?
How does applying oil to the teeth as they disengage help in reducing power losses and overheating in high speed gears?
What is a key characteristic of an epicyclic gearbox in terms of size and complexity?
What is a key characteristic of an epicyclic gearbox in terms of size and complexity?
Why is the gear ratio in an epicyclic gearing system considered somewhat non-intuitive?
Why is the gear ratio in an epicyclic gearing system considered somewhat non-intuitive?
What is the main function of Pneumaflex clutches in terms of torsional vibration?
What is the main function of Pneumaflex clutches in terms of torsional vibration?
How does a plate-type clutch operate?
How does a plate-type clutch operate?
What does the rubber element in Pneumaflex clutches help to compensate for?
What does the rubber element in Pneumaflex clutches help to compensate for?
What is the role of the rubber elements in Pneumaflex clutches in terms of noise?
What is the role of the rubber elements in Pneumaflex clutches in terms of noise?
How is a Pneumaflex clutch engaged?
How is a Pneumaflex clutch engaged?
How is a Pneumaflex clutch disengaged?
How is a Pneumaflex clutch disengaged?
What elements does a Pneumaflex clutch compensate for within a predetermined tolerance range?
What elements does a Pneumaflex clutch compensate for within a predetermined tolerance range?
What happens in a plate-type clutch when the pressure plate and clutch plate linings are in touch?
What happens in a plate-type clutch when the pressure plate and clutch plate linings are in touch?
What is the term used to describe the failure of the lubrication film that results in wear near the pitch line?
What is the term used to describe the failure of the lubrication film that results in wear near the pitch line?
What is the consequence of constant failure of the lubrication film that may lead to pressure welding or seizure between surfaces?
What is the consequence of constant failure of the lubrication film that may lead to pressure welding or seizure between surfaces?
What type of wear occurs when abrasive material enters between surfaces with the oil, resulting in abnormal wear?
What type of wear occurs when abrasive material enters between surfaces with the oil, resulting in abnormal wear?
What is the term used to describe abnormal tooth surface loading that can result in chips or flakes breaking away due to overstressed sub-surface metal?
What is the term used to describe abnormal tooth surface loading that can result in chips or flakes breaking away due to overstressed sub-surface metal?
What causes scoring on surfaces, where sharp projections break through the oil film and score the mating surface?
What causes scoring on surfaces, where sharp projections break through the oil film and score the mating surface?
What should be checked if fracture of gear teeth is found?
What should be checked if fracture of gear teeth is found?
What type of failure occurs when increased loading on the remaining surface causes further pitting until the working areas are destroyed?
What type of failure occurs when increased loading on the remaining surface causes further pitting until the working areas are destroyed?
What term refers to the sliding and yielding of the surface and subsurface metal that progresses towards the tooth tips of the driving wheel and the root of the driven wheel?
What term refers to the sliding and yielding of the surface and subsurface metal that progresses towards the tooth tips of the driving wheel and the root of the driven wheel?
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