Not in theory once it is running on load but running 'light' the bulb can cool and need a bit of heat. These low compression oil engines were an imperfect answer to rural power supply but that makes them great fun to play with,you always have to 'fiddle' to keep em going. Thanks
@taz2head Hi,The colour of these early engines were 'apple green',this one is about right but it comes out in the video a little bluer than in real life. Hope that helps. Thanks John
put a 100 pound flywheel on the Briggs and things would be different. The person that showed the calcs may have missed something. Yes, a small engine doesn't have the 'grunt' that these big old engines have but that is in part due to the huge flywheel. This stores the kinetic energy when the engine is not under load. Once the machine is running at speed less power is needed to keep it going then is needed at start up.
@douro20 No,The first four stroke was built by Crossley Brothers in 1876-77. See my other videos. I think you mean four stroke oil engine.The Hornsby was the first really successful petroleum engine. Thanks.
This is a Akroyd Cycle engine this type of engine was very popular in Scandinavia and and colder climates much under rated there were a number of successful tractors built using this type of engine the Lanz Bulldog for one built into the fifties plus a number of other makers, the advantage is it can run on almost any fuel from coal dust to heavy oil, the modern so called dicsel engine holds much in common with this engine, the only thing Diesel had to patent was high compression.
5hp and 850ft lbs of torque at 180 rpm and a rythm you can tap your foot to. A modern Tecumesh or Briggs 12 horse can be stopped with your foot on the shaft, this would tear your legs off.
I mentioned this to my friend with the Ruston Proctor at my clubs meeting the other night. I said about the heating system and he said that they were hand powered. Hes had bother recently with a Internanal Famous crashing into his garage door.
Herbert Akroyd Stuart, the instigator of compression ignition engines, like this beauty, moved from Merry England to Fremantle in West Australia for health reasons. He began an engineering works, Saunders and Stuart down near the waterfront, the buildings remained till the 1980s when Alan Bond bought them and demolished them for redevelopment. I remember the company operating, but dont know if Stuart was still alive then.
That's completely wrong. Akroyd used a hot bulb system for ignition and by far lower compression pressures than Diesel did. This is why the Akroyd engine is not comparable to the Diesel engine.
Hi John, lovely engine! All my old clattering green stuff is Listers; I'd love to swap the lot for one open-crank engine. Could you work this engine at it's rated output occasionally? Just 2 minutes of hard work once in a while and post on youtube. It wouldn't break it, just a little bit. I'd love to hear this engine work as it would have done in it's day. Go on be a sport!
I doubt very much if a briggs gives out more than 1 ft lb of torque. A 600cc sport motorbike with 120bhp only puts out 50ft lb and my 1125 cc Buell sportsbike with 150bhp only puts out 90ft lb of torqe.A small Briggs would not have the grunt to start a big flywheel spinning in the first place due to its short stroke and need to rev high to produce its power. I play with all sizes of engines every day of the week including steam and measure their power figures.
This is a hot bulb engine. At the end of the cylinder, there is a chamber that is heated before start up. The heat lets the engine ignite the diesel fuel with less compression (5 to 1). Back then they could not build an engine with enough compression for a true diesel engine (18 to 1).
Given full commercial backing, a traditional diesel engine could be designed to burn heavy fuel, in fact many large ships burn fuel oil that is dark and thick at room temp. It's amazing what we can do today.
***** This engine uses kerosene ,a lighter fuel than diesel. You are correct they were very inefficient thank good ness for Dr Diesel. The blower is only required for starting, because of it's inefficiency it keeps hot when working.
Sorry Dude, if the laws of physics "dont care how big your engine is" then why are there different sizes of engines, Using your theory, you could put a B&S in a truck! Tourqe is the calculated by force x distance, HP or power, is calculated using tourqe and engine speed. So, 5HP B&S @4krpm = 5252x5= 26260/4k= 6.56 ft/lp touque. 4k B&S RPM/ 180Akroyd RPM =22.22 22.22 x 6.56=145.76 ft/pl tourque from the B&S geared to the speed of this engine, a far cry from 850 as discussed, engine size matters!
WHY NOT ATACH A MECHANISM TO AUTO - WHIP UP TH OIL FLAME, AND THEN MAKE IT FULLY AUTOMATIC? ALSO A ISULATION FOR THE HEAT CONDUCTIVE METAL COULD HELP TO KEEP THE HEAT FOR A LONGER TIME
Not in theory once it is running on load but running 'light' the bulb can cool and need a bit of heat. These low compression oil engines were an imperfect answer to rural power supply but that makes them great fun to play with,you always have to 'fiddle' to keep em going. Thanks
Beautifull engine John..!!
Thats wonderful. Shes running so well a credit to the owner. Lovely sound too.
Interesting heating system. The engine is very nice!
ohhhh what a sweet old gal.. Thanks for posting..
As I understand it these were the first four stroke engines to be built in England.
Thanks for the great video!! Love the engine !!!
@taz2head Hi,The colour of these early engines were 'apple green',this one is about right but it comes out in the video a little bluer than in real life. Hope that helps. Thanks John
It will run all day so long as it is hot. It runs on Kerro.
Thank you, very interesting to see how it works
nice video
My friend has a 1904 51/2 HP Ruston Proctor, it has a simerlier heating system but on a treadle. Has alot of compression though.
mostly videos uploade 11 years ago ware bad qualty but this camera has outstanding picture quality
thanks for posting
put a 100 pound flywheel on the Briggs and things would be different. The person that showed the calcs may have missed something. Yes, a small engine doesn't have the 'grunt' that these big old engines have but that is in part due to the huge flywheel. This stores the kinetic energy when the engine is not under load. Once the machine is running at speed less power is needed to keep it going then is needed at start up.
absolutely just cool!!!!
That is awesome
@douro20 No,The first four stroke was built by Crossley Brothers in 1876-77. See my other videos. I think you mean four stroke oil engine.The Hornsby was the first really successful petroleum engine. Thanks.
Yes they are all engine lamps. Don't forget lamp engines were more popular over here and I have been collecting 45 years. Thanks.
just a cast iron pot with paraffin and a wick. The fan blows air into it and heats the bulb.
@grall3 Thanks!
This is a Akroyd Cycle engine this type of engine was very popular in Scandinavia and and colder climates much under rated there were a number of successful tractors built using this type of engine the Lanz Bulldog for one built into the fifties plus a number of other makers, the advantage is it can run on almost any fuel from coal dust to heavy oil, the modern so called dicsel engine holds much in common with this engine, the only thing Diesel had to patent was high compression.
5hp and 850ft lbs of torque at 180 rpm and a rythm you can tap your foot to.
A modern Tecumesh or Briggs 12 horse can be stopped with your foot on the shaft, this would tear your legs off.
I mentioned this to my friend with the Ruston Proctor at my clubs meeting the other night. I said about the heating system and he said that they were hand powered. Hes had bother recently with a Internanal Famous crashing into his garage door.
Thanks!
That is awsome
Herbert Akroyd Stuart, the instigator of compression ignition engines, like this beauty, moved from Merry England to Fremantle in West Australia for health reasons.
He began an engineering works, Saunders and Stuart down near the waterfront, the buildings remained till the 1980s when Alan Bond bought them and demolished them
for redevelopment.
I remember the company operating, but dont know if Stuart was still alive then.
That's completely wrong. Akroyd used a hot bulb system for ignition and by far lower compression pressures than Diesel did.
This is why the Akroyd engine is not comparable to the Diesel engine.
I really like this engine. Is she an 8hp? She looks like a straight cut from an old steam engine somewhat. Would have run a machine shop nicely.
Is it necessary to keep the oil lamp going in order for the engine to run properly?
beautyfull
@GrooveIsBack Thank you,you are welcome.
How does that burner work?
Hi John, lovely engine! All my old clattering green stuff is Listers; I'd love to swap the lot for one open-crank engine.
Could you work this engine at it's rated output occasionally? Just 2 minutes of hard work once in a while and post on youtube. It wouldn't break it, just a little bit. I'd love to hear this engine work as it would have done in it's day. Go on be a sport!
I'll see what I can do. thanks
Does it really need that much heat to Start her?
very nice... why do you keep heating the head after it's running? Just curious? thanks for posting.
John Lucas
Spectacular! Watch your eyebrows though.
Does a example of Akroyd Stuart's design exist?
Hot Bulb. Yes
@laralolsweetness1 Just a workman.
WOW idling. . . can we hear it work??????
I doubt very much if a briggs gives out more than 1 ft lb of torque. A 600cc sport motorbike with 120bhp only puts out 50ft lb and my 1125 cc Buell sportsbike with 150bhp only puts out 90ft lb of torqe.A small Briggs would not have the grunt
to start a big flywheel spinning in the first place due to its short stroke and need to rev high to produce its power. I play with all sizes of engines every day of the week including steam and measure their power figures.
This is some kind of stirling engine ?
This is a hot bulb engine. At the end of the cylinder, there is a chamber that is heated before start up. The heat lets the engine ignite the diesel fuel with less compression (5 to 1). Back then they could not build an engine with enough compression for a true diesel engine (18 to 1).
***** Could one of these be built today with higher compression ratio to burn biodiesel and heavy oil?
Given full commercial backing, a traditional diesel engine could be designed to burn heavy fuel, in fact many large ships burn fuel oil that is dark and thick at room temp. It's amazing what we can do today.
The problem with this engine is the heat wasted in the bulb. They are very inefficient.
***** This engine uses kerosene ,a lighter fuel than diesel. You are correct they were very inefficient thank good ness for Dr Diesel. The blower is only required for starting, because of it's inefficiency it keeps hot when working.
Sorry Dude, if the laws of physics "dont care how big your engine is" then why are there different sizes of engines, Using your theory, you could put a B&S in a truck! Tourqe is the calculated by force x distance, HP or power, is calculated using tourqe and engine speed.
So, 5HP B&S @4krpm = 5252x5= 26260/4k= 6.56 ft/lp touque.
4k B&S RPM/ 180Akroyd RPM =22.22
22.22 x 6.56=145.76 ft/pl tourque from the B&S geared to the speed of this engine, a far cry from 850 as discussed, engine size matters!
WHY NOT ATACH A MECHANISM TO AUTO - WHIP UP TH OIL FLAME, AND THEN MAKE IT FULLY AUTOMATIC?
ALSO A ISULATION FOR THE HEAT CONDUCTIVE METAL COULD HELP TO KEEP THE HEAT FOR A LONGER TIME
Yakidama Engine ＾＾