Author Topic: New feed pump for the boat.  (Read 22079 times)

Online steamer

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Re: New feed pump for the boat.
« Reply #15 on: September 20, 2013, 11:24:15 AM »
Thanks Dave, I keep looking at the boat pics and its becoming sooo tempting.
I have the Selway Fisher Explorer canoe plans and keep thinking a nice little 2inch bore and stroke would just fit in nicely :lolb: with a flash steam generator.
I have been looking for some Torpedo Launch drawings to build a scale model do you know of any boat yards that supply them.
Many thanks

I thought Selway had one there a while back....but I guess not.

I believe there is a lines drawing for a double ender in Dick Mitchells book.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

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Re: New feed pump for the boat.
« Reply #16 on: September 20, 2013, 11:32:40 AM »
OK   A number 8 running with pump.


Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

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Re: New feed pump for the boat.
« Reply #17 on: September 20, 2013, 01:44:17 PM »



Hi Dave,
This will be something a little different. I'll keep an eye on it. What may I ask are shuttle valves?
gbritnell

George,

Look here

http://www.modelenginemaker.com/index.php/topic,2384.msg39650.html#msg39650

Post #9

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Pete49

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Re: New feed pump for the boat.
« Reply #18 on: September 20, 2013, 03:37:00 PM »
Thanks Dave. now for the next question. Does one scale up a model engine or buy plans for the correct size motor. I know I'm trying to find out what I can and hope not becoming annoying. I have seen a few steam launches and have always wondered about the engines and how they are acquired. I know you can/could buy a steam engine and boiler setup here in Sth Oz as a guy bought one for his property on Kangaroo Island for powering his generator for his off grid house. 
Pete
I used to have a friend.....but the rope broke and he ran away :(

Online steamer

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Re: New feed pump for the boat.
« Reply #19 on: September 20, 2013, 04:17:10 PM »
Hey Pete,

I designed and made patterns for my engine, so .... :shrug:

You could buy one of several casting kits out there....with plans.....some are better than others....

Dave

"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

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Re: New feed pump for the boat.
« Reply #20 on: September 20, 2013, 05:56:40 PM »
An ideal source of plans are Ray's

http://hasbrouck.8m.com/index.htm

Tiny Engines through a boat yard who's name slips my mind supplies finished engines

There is a builder of engines in Austrailia.....but I'll get names and addresses later.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline ths

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Re: New feed pump for the boat.
« Reply #21 on: September 20, 2013, 10:19:24 PM »

Online steamer

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Re: New feed pump for the boat.
« Reply #22 on: September 20, 2013, 11:37:14 PM »
Yup.......that's the one.


Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Pete49

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Re: New feed pump for the boat.
« Reply #23 on: September 21, 2013, 04:26:21 AM »
Yep that's the one I mentioned but the name escaped me. :facepalm2:. One of the things that has always amazed me is the power of steam. An example is the oft seen traction engine and the work they could do with what is essentially a small steam engine with a large boiler on wheels.
Pete
I used to have a friend.....but the rope broke and he ran away :(

Online steamer

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Re: New feed pump for the boat.
« Reply #24 on: September 21, 2013, 12:17:05 PM »
Yep that's the one I mentioned but the name escaped me. :facepalm2:. One of the things that has always amazed me is the power of steam. An example is the oft seen traction engine and the work they could do with what is essentially a small steam engine with a large boiler on wheels.
Pete

Yes I am very much aware! 8)





Because man created boats to keep his engines dry..... :LittleDevil:
« Last Edit: September 21, 2013, 12:29:05 PM by steamer »
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

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Re: New feed pump for the boat.
« Reply #25 on: September 21, 2013, 03:41:08 PM »
Hmmmmmmm Brass!



I get all excited over brass!

Dave

"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online Dave Otto

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Re: New feed pump for the boat.
« Reply #26 on: September 21, 2013, 04:17:51 PM »
That represents a fair amount of pocket change.

Dave

Online steamer

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Re: New feed pump for the boat.
« Reply #27 on: September 21, 2013, 06:45:16 PM »
 1 x 2 x 12......Yes it does....I need a 1/3 of that for the pump...but It'll get used.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online Don1966

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Re: New feed pump for the boat.
« Reply #28 on: September 21, 2013, 07:34:30 PM »
Yea Dave, that is a chunk of brass, very expensive and you know how much I like brass. Have fun buddy.

Don

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Re: New feed pump for the boat.
« Reply #29 on: September 22, 2013, 03:08:56 AM »
I squared up a piece of brass tonight for the pump body.   I am in the throws of making the gear cover. so once I finish the vise work on the Wallaby gear cover, I'll do the machining of the pump body before I take the vise off and put the rotary table on.



Here's what the existing pumps look like.


The feed pump is on the right, and the wet air pump on the left.  They are driven by levers connected to the LP crosshead.




The problem is the speed of the pumps is very fast...at 550 strokes/minute ....so the feed pump is not very efficient...A slower pump will work better.

I may re-use some of the valves.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!