Steam Engine Specifications - Revision history

Mjn: /* Materials Calculations */

2011-06-12T14:47:14Z

Materials Calculations

← Older revision		Revision as of 14:47, 12 June 2011
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	*20 pounds of weigh per horsepower		*20 pounds of weigh per horsepower

			Steel weights .2833 pounds per cubic inch

	=Flexibility and Performance=		=Flexibility and Performance=

2011-06-11T16:43:11Z

← Older revision		Revision as of 16:43, 11 June 2011
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	** Quarter Inch Set Screws, 0.5" long (2)		** Quarter Inch Set Screws, 0.5" long (2)

	'''Techniques ~~and Stock:~~'''		'''Techniques'''

	*Casting used for body		* Stock parts wherever feasible
	*Stock parts wherever feasible		* Lathing for valves and other parts
	*Lathing for ~~bore~~		* Milling of exhaust plenum and other parts
			* Hole drilling
			* Cylinder boring may be necessary, depending on stock availability
			* Welding of parts in several places

	~~'''Other:'''~~		=Specification Decisions=

	~~==Things to Spec~~==

	There are a few key dimensions that need to be specified before the full dimensions of the engine and it's parts are known. These include:		There are a few key dimensions that need to be specified before the full dimensions of the engine and it's parts are known. These include:

2011-06-11T16:38:59Z

← Older revision		Revision as of 16:38, 11 June 2011
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	=Parts List=		=Parts List=

			The following list of parts is based on the initial set of technical drawings linked from [[Steam Engine Build Instructions]].

	'''Steam Engine Parts'''		'''Steam Engine Parts'''

2011-06-11T16:37:52Z

@@ Line 58: / Line 58: @@
-=Fabrication=
+=Parts List=
-[[File:Fab-Chart.png]]
+'''Steam Engine Parts'''
-'''Steam Engine Elements:'''
+* Piston Assembly
-* Elements to be Fabricated
+'''Crankshaft Parts'''
-[[Image:Crankshaft.png|thumb|Crankshaft design diagram.]]
+* Shaft
-'''Crankshaft Elements:'''
+** Flywheel Shaft (1)
-* Crankshaft
+** Drive Shaft (1)
-** Shaft pieces (2)
+* Crank Assembly (1)
-** Offset plates (2)
+** Crank Pin (1)
-** Crank piece (1)
+** Crank Counterweight (2)
-** Couplers (2)
+** Crank Arm (2)
-** Screws
+** Nylon Bushings, 0.5" long (2)
-** Crankshaft support assembly
+* Pillow Block Assembly (2)
+** Pillow Block Bearings (2)
-* no welding in this design.
+** Supoprt Element (1 - 2 total)
-* does require tapping holes for machine screws.
+** Support Base (1 - 2 total)
-* needs counterbalance to not vibrate.
+** Support Rods (2 - 4 total)
 '''Techniques and Stock:'''

2011-05-26T12:24:39Z

2011-05-26T00:08:30Z

← Older revision		Revision as of 00:08, 26 May 2011
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	** Initially, we shall use 1/8" (0.125"). This can be adjusted by changing the valve pin length.		** Initially, we shall use 1/8" (0.125"). This can be adjusted by changing the valve pin length.
	* I.D. of a half inch bolt - needed to determine valve spring holes and valve stem diameter.		* I.D. of a half inch bolt - needed to determine valve spring holes and valve stem diameter.
			** O.D. is 0.515", I.D. is 0.482". However, this might not be the size of the hole we need. See valve spring size.
	* Cylinder clearance - space remaining in the bore at top dead center.		* Cylinder clearance - space remaining in the bore at top dead center.
	** "Steam Engines" recommends 3-8% of the piston displacement, which is 4". If we assume 6%, this is a clearance of 0.24, which we can round off to 0.25 (1/4 inch).		** "Steam Engines" recommends 3-8% of the piston displacement, which is 4". If we assume 6%, this is a clearance of 0.24, which we can round off to 0.25 (1/4 inch).

2011-05-26T00:03:12Z

← Older revision		Revision as of 00:03, 26 May 2011
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	* Valve Gap - the amount of space open in the valves at top dead center.		* Valve Gap - the amount of space open in the valves at top dead center.
			** Initially, we shall use 1/8" (0.125"). This can be adjusted by changing the valve pin length.
	* I.D. of a half inch bolt - needed to determine valve spring holes and valve stem diameter.		* I.D. of a half inch bolt - needed to determine valve spring holes and valve stem diameter.
	* Cylinder clearance - space remaining in the bore at top dead center.		* Cylinder clearance - space remaining in the bore at top dead center.
			** "Steam Engines" recommends 3-8% of the piston displacement, which is 4". If we assume 6%, this is a clearance of 0.24, which we can round off to 0.25 (1/4 inch).
	* Exhaust port locations - near bottom dead center		* Exhaust port locations - near bottom dead center
			** We will use 3.6" from T.D.C as the left edge of the exhaust holes, which shall be 0.25" in diameter..

	[[Category:Specifications]]		[[Category:Specifications]]
	[[Category:Steam Engine]]		[[Category:Steam Engine]]

2011-05-25T12:41:56Z

← Older revision		Revision as of 12:41, 25 May 2011
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	'''Other:'''		'''Other:'''

			==Things to Spec==

			There are a few key dimensions that need to be specified before the full dimensions of the engine and it's parts are known. These include:

			* Valve Gap - the amount of space open in the valves at top dead center.
			* I.D. of a half inch bolt - needed to determine valve spring holes and valve stem diameter.
			* Cylinder clearance - space remaining in the bore at top dead center.
			* Exhaust port locations - near bottom dead center

	[[Category:Specifications]]		[[Category:Specifications]]
	[[Category:Steam Engine]]		[[Category:Steam Engine]]

2011-05-13T13:03:57Z

← Older revision		Revision as of 13:03, 13 May 2011
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	**[[Solar Power Generator]] heat engine		**[[Solar Power Generator]] heat engine
	**CHP with space heating		**CHP with space heating


			=Sources=

			* [[Steam Engine Specifications/Piston Ring Sources]]
			* [[Steam Engine Specifications/Cylinder Liner Sources]]
			* [[Steam Engine Specifications/Bearing Sources]]
			* [[Steam Engine Specifications/Valve Spring Sources]]


	=Fabrication=		=Fabrication=

2011-05-13T03:04:33Z

← Older revision		Revision as of 03:04, 13 May 2011
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	** Cylinder Assembly		** Cylinder Assembly
	*** Cylinder		*** Cylinder
	*** Cylinder ~~support assembly~~		*** Cylinder mounting bracket
	*** Cylinder end cap with valve seats		*** Cylinder end cap with valve seats
	*** Cylinder end cap and end mount		*** Cylinder end cap and end mount