Difference Between Governor and Flywheel - Get Your Answer Now!

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Discussion Overview

The discussion revolves around the differences between a governor and a flywheel, focusing on their functions, applications, and mechanical configurations. Participants explore theoretical aspects, practical applications in engines, and specific use cases in vehicles.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant describes a flywheel as a device that stores and releases energy to stabilize speed, while a governor controls fuel supply based on speed variations through centrifugal action.
  • Another participant notes that a governor changes its mechanical or electrical configuration in response to speed variations, suggesting that such mechanisms could theoretically be integrated into a flywheel, although this is not common.
  • Questions arise regarding the use of governors in internal combustion engines, with examples provided from tractors and automobiles, highlighting their role in maintaining RPMs and speed control.
  • Some participants mention additional applications of governors, such as rev limiters in high-performance engines and speed limiters in commercial vehicles.
  • One participant emphasizes that a flywheel is not a governor, although it may be a component within a governor system, reinforcing the distinction between the two devices.
  • A historical reference is made to the first governor, which utilized a flywheel mechanism, linking the two concepts in an early engineering context.
  • Another participant points out that governors are present in automatic transmissions, regulating oil pressure for gear changes, which adds another layer to the discussion of their applications.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between governors and flywheels, with some emphasizing their distinct functions while others explore potential overlaps. The discussion remains unresolved regarding the extent to which they may be related or integrated in specific applications.

Contextual Notes

Some statements reflect assumptions about the mechanical configurations of governors and flywheels, and there are unresolved questions about the specific applications and historical context of these devices.

R Power
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Hi guys
What is the difference between flywheel and governor? Well, I know that flywheel is a wheel which stores and releases energy and avoid fluctutations in speed and governor controls fuels supply when speed is in access or very less through centrifugal action.
But what i am confused is what's diff between two? Both tend to stabilize speed. So is the diff only in the way of working or what?
 
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A governor changes its mechanical and/or electrical configuration in response to speed variations. Those changes are used to control the input.
I suppose that such mechanisms could be built into a flywheel, but I've never heard of it being done. Normally, a flywheel is a fairly rigid structure.
 
Is there any use of governor in ic engines of cars?
 
Tractors have governors so a set RPM may be maintained for plowing, etc..
the closest to a governor on automobiles is cruise control where a specific MPH is locked in and the engine varies RPM to maintain the speed regardless of hills , terrain
 
Don't forget rev limiters on high-performance engines as well. These are usually built into the tach. Most just shut the engine down, but some selectively dampen spark activity to maintain rpm's at the redline. Also, some commercial vehicles such as Greyhound buses have driving speed limiters.
 
Actually, the first governor used something like a flywheel. The invention was the http://en.wikipedia.org/wiki/Centrifugal_governor" by James Watt.
 
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Don't confuse this, a flywheel is NOT a governor. A flywheel may well be a component in a governor as bluelava0207 linked to, but they're not the same. Danger's responses are bang on; in a normal automotive application any governor operates as engine overspeed protection.
 
Flywheels are used for short-term energy storage, like on the one-cylinder hit-and-miss farm engine, which had to coast for 720 degrees (somethimes more) between spark ignition. See thumbnail. For four-clinder automobile engines, a flywheel makes the idle RPM smoother.
(picture taken from http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=400085029474 )
Bob S
 

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There is a governor in many cars, although not in the engine, but in the automatic transmission of non-computerized transmissions. It regulates oil pressure to change gears. Look under transmission components governor:
http://www.familycar.com/transmission.htm#Throttle Cable
 

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