The Steam-Engine And Other Heat-Engines
The Steam-Engine And Other Heat-Engines
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In our eReader you can find the full English version of the book. Read The Steam-Engine And Other Heat-Engines Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Steam-Engine And Other Heat-Engines
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The effect of the load is therefore to increase the controlling force F from — ^ , in poundals, to h But the condition of equilibrium still is that F should be equal to 47r^'rJlf. Hence the speed n at which the governor must now turn to maintain any assigned height h is 1 /(M+qAr)g Compared with the simple or unloaded form, this governor requires a higher speed in the proportion of VJIf + qM' to »JM, In the ordinary construction of the Porter governor the four links form a parallelogram and con...sequently the vertical move- ment of the load borne by the sliding collar is twice that of the balls, or g = 2. And as the whole load is divided between two balls, each ball virtually has its weight, but not its mass, increased by an amount equal to the whole weight of the central load.
Fig. 118.
Another way of considering the equilibrium of the Porter governor may be mentioned. Let the mass of each ball be M and let that of the load be 2M' as before. The load, the weight of which is 2M^g in poundals, is borne by the tensions in the two lower rods (fig.
What to read after The Steam-Engine And Other Heat-Engines?
You can find similar books in the "Read Also" column, or choose other free books by J a James Alfred Ewing to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The effect of the load is therefore to increase the controlling force F from — ^ , in poundals, to h But the condition of equilibrium still is that F should be equal to 47r^'rJlf. Hence the speed n at which the governor must now turn to maintain any assigned height h is 1 /(M+qAr)g Compared with the simple or unloaded form, this governor requires a higher speed in the proportion of VJIf + qM' to »JM, In the ordinary construction of the Porter governor the four links form a parallelogram and con...sequently the vertical move- ment of the load borne by the sliding collar is twice that of the balls, or g = 2. And as the whole load is divided between two balls, each ball virtually has its weight, but not its mass, increased by an amount equal to the whole weight of the central load.
Fig. 118.
Another way of considering the equilibrium of the Porter governor may be mentioned. Let the mass of each ball be M and let that of the load be 2M' as before. The load, the weight of which is 2M^g in poundals, is borne by the tensions in the two lower rods (fig.
What to read after The Steam-Engine And Other Heat-Engines?
You can find similar books in the "Read Also" column, or choose other free books by J a James Alfred Ewing to read onlineMoreLess
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