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Author Topic: Corliss Engine Model  (Read 27335 times)

Offline Jo

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Re: Corliss Engine Model
« Reply #45 on: August 10, 2012, 10:51:34 AM »
My Throp designed corliss engine has O ring seals.

Jo
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Offline Captain Jerry

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Re: Corliss Engine Model
« Reply #46 on: August 10, 2012, 04:01:03 PM »
Jason and Dave

I have been thinking of seals.  O-rings maybe:



But I would be happier if I could find 1/4" OD with 1/32" cross section.  Then I wouldn't have to groove the inner shaft.  I may use graphite packing.

Jerry
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Offline Captain Jerry

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Re: Corliss Engine Model
« Reply #47 on: August 10, 2012, 04:11:26 PM »
Jo

The valve bore will be connected to the cylinder bore by three or four 1/16" holes.  In the following drawings, the valve edge should open about .045" across the width of .375".  That should be plenty, don't you think? In the second drawing, upper right valve and the lower left valves are full open (the piston should be at mid-stroke)







Jerry
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Offline Jo

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Re: Corliss Engine Model
« Reply #48 on: August 10, 2012, 05:30:21 PM »
Should be plenty,  :thinking: but you are loosing that beautiful sharp cut off of the Corliss design . But I won't tell anyone if you don't :ThumbsUp:.

Jo
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Offline Captain Jerry

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Re: Corliss Engine Model
« Reply #49 on: August 10, 2012, 06:29:52 PM »
Jo

I really wanted to experiment with full working Corliss quick cutoff but after extensive research, the fuel savings just don't justify the effort. I may have to reconsider if fuel continues it upward spiral.

Jerry
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Offline arnoldb

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Re: Corliss Engine Model
« Reply #50 on: August 10, 2012, 06:52:14 PM »
Quote
the fuel savings just don't justify the effort. I may have to reconsider if fuel continues it upward spiral.
:Lol:

Jerry, on this small scale you might just be able to get away without any seals at all if you made the valve a good fit in it's bore and use thick oil or even a light grease when assembling it.  I know that's taking the ?ber simplistic way, so that would depend entirely on you.

A really worthless N$0.02  ;)

Kind regards, Arnold
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Offline Captain Jerry

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Re: Corliss Engine Model
« Reply #51 on: August 10, 2012, 11:58:28 PM »
I'll start with ?ber, Arnold.   :ThumbsUp:   May be stick with it.


Jerry
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Offline Captain Jerry

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Re: Corliss Engine Model
« Reply #52 on: September 02, 2012, 01:43:09 AM »
OK! Enough procrastination.  I'm ready to start building something.  I said I would start in September so here goes.  I'm going to start a new thread in "Work in Progress".   The engine will not be a full working Corliss design but it has a historical precedent, properly known as a "Four Valve Non-Releasing Steam engine".  I hope to see you there.

Jerry
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Offline steamer

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Re: Corliss Engine Model
« Reply #53 on: September 02, 2012, 02:09:40 AM »
Count me in Jerry!

Dave
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Offline zeeprogrammer

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Re: Corliss Engine Model
« Reply #54 on: September 02, 2012, 04:35:27 AM »
I'll be watching.
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