Steam Engine Build/Piston Head - Revision history

Mjn at 01:03, 26 June 2011

2011-06-26T01:03:47Z

← Older revision		Revision as of 01:03, 26 June 2011
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	[[Steam Engine Build Instructions]]		[[Steam Engine Build Instructions]]

	~~[[Image:Cad-Piston.png\|thumb]]~~
	=Description=		=Description=

Mjn at 00:57, 26 June 2011

2011-06-26T00:57:08Z

← Older revision		Revision as of 00:57, 26 June 2011
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	=CAD=		=CAD=

	'''Piston Stem'''		'''Piston Stem'''<br>
	[[Image:cad-piston-stem.png]]		[[Image:cad-piston-stem.png]]

	'''Piston Head'''		'''Piston Head'''<br>
	[[Image:cad-piston-head-1.png]][[Image:cad-piston-head-2.png]]		[[Image:cad-piston-head-1.png]][[Image:cad-piston-head-2.png]]

	'''Piston Head Assembly'''		'''Piston Head Assembly'''<br>
	[[Image:cad-piston-head-asmbly.png]]		[[Image:cad-piston-head-asmbly.png]]

	'''Full Piston Assembly with Rings and Pins'''		'''Full Piston Assembly with Rings and Pins'''<br>
	[[Image:cad-piston-asmbly.png]]		[[Image:cad-piston-asmbly.png]]

Mjn at 00:56, 26 June 2011

2011-06-26T00:56:41Z

← Older revision		Revision as of 00:56, 26 June 2011
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	=CAD=		=CAD=

			'''Piston Stem'''
	[[Image:cad-piston-stem.png]]		[[Image:cad-piston-stem.png]]

			'''Piston Head'''
			[[Image:cad-piston-head-1.png]][[Image:cad-piston-head-2.png]]

			'''Piston Head Assembly'''
			[[Image:cad-piston-head-asmbly.png]]

			'''Full Piston Assembly with Rings and Pins'''
			[[Image:cad-piston-asmbly.png]]

	=Drawing=		=Drawing=

Mjn at 00:06, 26 June 2011

2011-06-26T00:06:52Z

← Older revision		Revision as of 00:06, 26 June 2011
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	=CAD=		=CAD=

	[[Image:cad-piston-~~stemp~~.png]]		[[Image:cad-piston-stem.png]]

	=Drawing=		=Drawing=

Mjn at 00:06, 26 June 2011

2011-06-26T00:06:43Z

← Older revision		Revision as of 00:06, 26 June 2011
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	The piston head converts energy stored in steam pressure to motion. As steam in the cylinder expands, it pushes against the piston head, which is connected to a connecting rod, and then to a crank on a crankshaft. The crankshaft converts linear motion in rotary motion. The piston is built from two pieces: the piston head and the piston stem, welded together. On the face of the piston head are two threaded holes that receive the bump valve pins (see [[Steam Engine Build/Bump Valve Pin]]). A series of holes are bored in the piston head from the bottom to reduce weight. Two rectangular grooves are turned into the piston face to receive piston rings.		The piston head converts energy stored in steam pressure to motion. As steam in the cylinder expands, it pushes against the piston head, which is connected to a connecting rod, and then to a crank on a crankshaft. The crankshaft converts linear motion in rotary motion. The piston is built from two pieces: the piston head and the piston stem, welded together. On the face of the piston head are two threaded holes that receive the bump valve pins (see [[Steam Engine Build/Bump Valve Pin]]). A series of holes are bored in the piston head from the bottom to reduce weight. Two rectangular grooves are turned into the piston face to receive piston rings.

			=CAD=

			[[Image:cad-piston-stemp.png]]

	=Drawing=		=Drawing=

Mjn at 12:00, 11 June 2011

2011-06-11T12:00:05Z

← Older revision		Revision as of 12:00, 11 June 2011
Line 2:		Line 2:
	[[Steam Engine Build Instructions]]		[[Steam Engine Build Instructions]]

	[[Image:Cad-Piston.png]]		[[Image:Cad-Piston.png\|thumb]]
	=Description=		=Description=

Mjn: Added CAD view.

2011-06-11T11:59:53Z

Added CAD view.

← Older revision		Revision as of 11:59, 11 June 2011
Line 2:		Line 2:
	[[Steam Engine Build Instructions]]		[[Steam Engine Build Instructions]]

			[[Image:Cad-Piston.png]]
	=Description=		=Description=

Mjn: Created page with "{{Category=Steam Engine}} Steam Engine Build Instructions =Description= The piston head converts energy stored in steam pressure to motion. As steam in the cylinder expand..."

2011-05-30T18:48:42Z

Created page with "{{Category=Steam Engine}} Steam Engine Build Instructions =Description= The piston head converts energy stored in steam pressure to motion. As steam in the cylinder expand..."

New page

{{Category=Steam Engine}}
[[Steam Engine Build Instructions]]

=Description=

The piston head converts energy stored in steam pressure to motion. As steam in the cylinder expands, it pushes against the piston head, which is connected to a connecting rod, and then to a crank on a crankshaft. The crankshaft converts linear motion in rotary motion. The piston is built from two pieces: the piston head and the piston stem, welded together. On the face of the piston head are two threaded holes that receive the bump valve pins (see [[Steam Engine Build/Bump Valve Pin]]). A series of holes are bored in the piston head from the bottom to reduce weight. Two rectangular grooves are turned into the piston face to receive piston rings.

=Drawing=

[[Image:Spec-Piston-Head.png]]

=Instructions=

'''Piston Head'''

# Mount a 4.0" cast iron rod in a lathe.
# Reduce the outside diameter to 3.75".
# Cut two piston ring grooves at 0.5" (center) offset from the top and bottom of piston (width and depth are TBD).
# Cut off the piston head to a length of 2.0"
# On the top of the piston head, drill two 0.25" holes, 1.25" from the center (Holes A in drawing).
# From the bottom of the piston head, bore the following holes:
## 4 Holes B: 1.0" dia to a depth of 1.5" (weight reduction).
## 4 Holes C: 0.5" dia to a depth of 1.0" (weight reduction).
## 1 Hole D: 0.5" dia to a depth of 1.0" (piston stem receiving hole).

'''Piston Stem'''

# Use 0.5" steel rod stock.
# Cut off 0.2" on either side, 0.5" in from end.
# Round off the end (0.5" dia.)
# Drill a 0.25" dia hole

'''Assembly'''

# Insert completed piston stem into piston stem receiving hole (Hole D).
# Weld around to secure it.

[[Category:Steam Engine]]