Ambitious newby

**brsanko** · 30-06-2012

Jazz, you haven't said anything usefull, and if you actually had any knowledge you would have been honored to have been asked for advice. But seeing as you couldn't think of anything useful to say you insted decided to discourage me and say absoutely nothing of any value in 3 long paragraphs. I don't want your help and I would appreciate it if you would refrain from reading my posts in the future. Any knowledge you might actually have is so clouded by your ego and negativity I don't think you could teach a dog to urinate.

**JAZZCNC** · 30-06-2012

Originally Posted by brsanko

Jazz, you haven't said anything usefull, and if you actually had any knowledge you would have been honored to have been asked for advice. But seeing as you couldn't think of anything useful to say you insted decided to discourage me and say absoutely nothing of any value in 3 long paragraphs. I don't want your help and I would appreciate it if you would refrain from reading my posts in the future. Any knowledge you might actually have is so clouded by your ego and negativity I don't think you could teach a dog to urinate.

Ok I'll ignore the insults for now they are wasted on me anyway I've thicker skin than that.!!

First at the time of posting given there was no information or designs on your engine my advice was relavent and practicle. High IQ alone doesn't mean you'll be a competent machinist or engineer which you'll need to be for such a project. . . Equally buying the biggest or most advanced machinery won't make up for a lack of skill.! . . .So seeking training his sound advice.!!

I could have said, like others have you need a Mill & Lathe (Personally thou a cyclindrical grinder would have been on the list.!!) but thats pritty lose advice and at the time of posting your needs unknown so didn't.

Now after seeing the design and given your clever attitude plus the insults the only advice I'm parting with is invest in CFD/1DGDS & FEA before any machinery.!! The next 10yrs redesigning should give you plenty of time to workout whats needed and gain some engineering skills.!

Has for the request for me to stop reading your posts then request Denied because I like a good laugh.!! . . . BUT I fully intend refraining from posting so you have a result there.!!

**mocha** · 30-06-2012

A combustion chamber at each end of the cylinder eh? :-)

Turbo charger direct drive on start up and clutch disengages once EGT reaches working temperature?

Scotch yolk?

Looks rather like a modified 'Bourke' engine...

Hmm... interesting.

**Robin Hewitt** · 30-06-2012

Originally Posted by mocha

A combustion chamber at each end of the cylinder eh? :-)

I think the inside chamber is to compress the air that will recharge the outside chamber. He can't use the crank case to do the 'blow' in the usual fashion.

I notice people making multi-cylinder steam engines using a swash plate to get the reciprocation, wonder if you could combine the two ideas... If you made the lower cylinders larger than the combustion chambers you could get a good flush.

Right now the design looks totally naff, but can't we assume it's just a short stroked, simplified drawing to explain the cycle? Even us low IQ types with large penises can see it doesn't have a lot of hope.

**blackburn mark** · 30-06-2012

i assumed expansion chambers would do all the work and "suck" the next charge in

**Robin Hewitt** · 30-06-2012

Originally Posted by blackburn mark

i assumed expansion chambers would do all the work and "suck" the next charge in

Did you miss the 2 stroke part? There is no suck unless you do something really clever with the exhaust pipe geometry.

To pep up a 2 stroke you put a clack valve between the carburettor and the air inlet, it stops it blowing back through the carb when the piston starts it's down stroke. (They call them "reed valves" but they are really clacks).

A turbo charged 2 stroke is interesting. Of course you can't increase the cylinder pressure because the exhaust valve is still open when the inlet cracks, but 2 stroke power is all about flushing the exhaust from the cylinder. With fuel injection you wouldn't be blowing unburnt fuel down the exhaust if you over-cooked it.

OTOH what do beer swilling morons like me know about designing engines?

**blackburn mark** · 30-06-2012

engaging in a bit of philanthropy jazz? or are we just making sure we better than anyone else and weakness is not to be toleraited?

**brsanko** · 30-06-2012

Okay, I'm back and my blood pressure is back to normal and I will learn to ignore unhelpful people. Yes the yoke is like the one in the Bourke engine, oddly enough I thought of it myself before I ever knew about the Bourke engine, but a few years ago I discovered the website for the bourke engine and it laid to rest my fears that the yoke might not work. I think my design solves some of the issues with the Bourke like vibration, and size.
I have a garage that is about 18' x 24' (I'm looking out the window guessing). It's full of junk but I'm pretty motivated to clean it out (not my junk). And if I need more my landlord has a building about 1/2 a mile away that is about 30' x 100' that I could use part of if I need to. It currently has a dirt floor and no electricity but the adjacent identical building has his cabinet shop with 3 phase power in it and it can be hooked up easily. My initial equipment budget will be $5-10k and I have been looking at mills and lathes on ebay and there are some deals to be had but I guess I don't really know what I'm looking for.
I'm sure I will start with some exercise projects and eventually make some scale models and mock ups of my design. The fuel injection system I have invisioned for the design as well as the turbo are not really DIY projects but I would like to work some of the bugs out of the basic design and prove it's viability before I try to do anything commercially with it. And if nothing ever becomes of itcommercially it will be an exciting hobby. Thank you all for your input.

**brsanko** · 30-06-2012

Tensen: It was not my intention to brag about how clever I am, and I don't mind constructive criticizm(sp?). I just don't need people going on about how difficult it's going to be, it's not constructive. Plus I'm sensitive and have a short fuse myself. I also am looking for advice on engine design, I'm not an expert in that feild either but I think I may have some good ideas and I like it when people look at them and critique them, as long as they're not just spewing out junk like "it won't work" or my very favorite "If it would work, then someone would have already done it, or they have and it didn't work." If you know what I mean. I understand most of the people on here are at least as smart as I am, if I didn't I wouldn't be asking them for help. I just wanted to let them know that I have the capability to learn this stuff. Any way back on topic, shrink session over lets talk about machine work.

**brsanko** · 30-06-2012

I didn't draw it this way but I was thinking the intake valves should be bigger than the exhast valves so when the exhast valve closes the supercharger can push in some pressure. I am as we discuss this planning to completely revamp my drawing (no small task in it'self.) to include some of the changes discussed.