Search found 37 matches
- Sun Mar 13, 2022 4:59 am
- Forum: Technical - Engines and Boilers
- Topic: Valve Gear Simulation
- Replies: 14
- Views: 13756
Re: Valve Gear Simulation
I have followed Don Ashton (and others), but mainly Don because he seems to deep dive into valvegear subjects to a greater extent than many/most. So read his 8th paragraph here: http://www.donashton.co.uk/html/other_gears.html Does this jibe with what you describe as the benefits of the Bremme gear?...
- Sun Mar 13, 2022 3:50 am
- Forum: Technical - Engines and Boilers
- Topic: Valve Gear Simulation
- Replies: 14
- Views: 13756
Re: Valve Gear Simulation
I made this graph in Excel for a Stanley 20hp, but unfortunately I am not far enough along in valvegear understanding to program in the Stephenson's link. I can't verify that the labels are correct, but they are my understanding of the various points. I am getting there, but am definitely not there ...
- Sat Mar 12, 2022 11:35 pm
- Forum: Technical - Engines and Boilers
- Topic: Valve Gear Simulation
- Replies: 14
- Views: 13756
Re: Valve Gear Simulation
Bill Hall has both Stephenson's and Walschert's valve gear programs.
And Alan Wallace has a Stephenson's program (or maybe just a Walschert's program).
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And Alan Wallace has a Stephenson's program (or maybe just a Walschert's program).
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- Sat Mar 12, 2022 11:32 pm
- Forum: Technical - Engines and Boilers
- Topic: Valve Gear Simulation
- Replies: 14
- Views: 13756
Re: Valve Gear Simulation
Don Aston has done a lot of work with the Stephenson link, and has a spreadsheet.
I am not sure how to attach stuff here, or what format is accepted, but I have these items.
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I am not sure how to attach stuff here, or what format is accepted, but I have these items.
.
- Sat Mar 12, 2022 11:26 pm
- Forum: Technical - Engines and Boilers
- Topic: Valve Gear Simulation
- Replies: 14
- Views: 13756
Re: Valve Gear Simulation
I got pretty involved in studying valve gear design a few years ago. I ran across Docksteder's programs, and was impressed with what he had done. I emailed him, and convinced him that he should really share the source code for those programs while he was still able to do so. He did send me some sour...
- Sun Dec 26, 2021 4:46 pm
- Forum: Technical - Engines and Boilers
- Topic: Steam Tug Alva B - Engine Question
- Replies: 6
- Views: 3123
Re: Steam Tug Alva B - Engine Question
Thanks for the responses. I have been searching the net for rocking valve info, and while plenty can be found regarding the Corliss engines, I have been unable to find anything of significance with a rocking valve engine that is not in a Corliss configuration. One of the only engines I can recall se...
- Sat Dec 25, 2021 9:43 pm
- Forum: Technical - Engines and Boilers
- Topic: Steam Tug Alva B - Engine Question
- Replies: 6
- Views: 3123
Re: Steam Tug Alva B - Engine Question
Specs on the engine:
22" bore x 24" stroke, 425 hp @ 120 rpm, HPNC (High Pressure Non-Condensing) engine built by Whitman Co., Buffalo, NY
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22" bore x 24" stroke, 425 hp @ 120 rpm, HPNC (High Pressure Non-Condensing) engine built by Whitman Co., Buffalo, NY
.
- Sat Dec 25, 2021 9:42 pm
- Forum: Technical - Engines and Boilers
- Topic: Steam Tug Alva B - Engine Question
- Replies: 6
- Views: 3123
Steam Tug Alva B - Engine Question
Can someone explain the rocking valves on the Alva B single cylinder tug engine.
Appears to be two valves, and multiple eccentrics.
Appears to be two valves, and multiple eccentrics.
- Wed Dec 08, 2021 9:37 am
- Forum: Technical - Engines and Boilers
- Topic: Green Twin Complete
- Replies: 13
- Views: 9163
Re: Green Twin Complete
I got a notice today that the last part of the multi-part green twin magazine article series was on its way in the mail. So time to open up the original green twin thread, which I had kept concealed so as to not preempt the magazine article. I still don't have the drawings up yet, but will post thos...
- Wed Dec 01, 2021 7:36 pm
- Forum: Technical - Engines and Boilers
- Topic: digital steam engine indicator
- Replies: 134
- Views: 157402
Re: digital steam engine indicator
This is a very old thread, and I have not read all of it. I had a white paper about someone who did make a digital indicator, and he had it hooked up to a personal computer. I will try to find that article. I always thought that a stepper motor would be ideal for actuating a D-valve (or other type s...