some engine questions....

[Blknight.aus]

ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned?

What types of motors/engines provide maximum torque at 0 Rpms.

Whats the maximum number of strokes that a reciprocating engine has used and remained effective?

does a reciprocating engine have to have a crank shaft?

can a diesel engine have a carby, more importantly can it have it as the only source of fuel that gets to the combustion chamber?

do you have to have valves in a reciprocating diesel engine?

what fueled the first reciprocating engines?

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work?



have fun....

[Slunnie]

I'll have a go.

ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned? Oops, the ones the use on shuttles etc which carry all fuel.

What types of motors/engines provide maximum torque at 0 Rpms. Electric

Whats the maximum number of strokes that a reciprocating engine has used and remained effective? 6

does a reciprocating engine have to have a crank shaft? no

can a diesel engine have a carby, more importantly can it have it as the only source of fuel that gets to the combustion chamber? yes, yes

do you have to have valves in a reciprocating diesel engine? no

what fueled the first reciprocating engines? parrafin

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work? yes, one was a guide on extra long stroke motors.



have fun....

[Blknight.aus]

you have 4 right, 1 wrong, 2 half right and 1 I'll give you credit for but its not the answer I was looking for.

[Slunnie]

you have 4 right, 1 wrong, 2 half right and 1 I'll give you credit for but its not the answer I was looking for.
Hmmm, actually maybe it needs more thought. The reciprocating one was probably really the waterwheel.

[blitz]

apart from what Slunnie wrote, I think the commer knocker motor had two pistons in one cylinder which would answer the last question as a yes

Blythe

Not really showing my age just remember a conversation about engines with my dad years ago.

[harry]

2 pistons in a single cylinder -yep - commer knocker -con rods out to rockers back into crankshaft
recip engine - crankshaft - rotary, still has a bit in the middle, to hold the rods, but the cyls and crankcase are attached to the prop.

[Blknight.aus]

harry, nice try on the rotary engine but no, the bit in the middle is still occasionally refered to as a crank...

when a rotary is in a stationary role (as in the sherman tank) the casing is held and the crank turns....

good effort tho.

[Blknight.aus]

Hmmm, actually maybe it needs more thought. The reciprocating one was probably really the waterwheel.

nope the water wheel technically falls under the turbine class of engine.

[slug_burner]

ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned? RAM jet

What types of motors/engines provide maximum torque at 0 Rpms. DC electric

Whats the maximum number of strokes that a reciprocating engine has used and remained effective? fourdoes a reciprocating engine have to have a crank shaft? Yes if you want to convert reciprocating motion into circular motion otherwise no

can a diesel engine have a carby, yes model engine planes use them more importantly can it have it as the only source of fuel that gets to the combustion chamber? yes

do you have to have valves in a reciprocating diesel engine? No it could be a two stroke using reeds

what fueled the first reciprocating engines? What Slunnie said

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work? Two stroke diesel with the piston crowns pushing towards each other, cranks at either end with a connection between them. It looks like a boxer configuration sort of



have fun....

...

[clean32]

ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned?

Coxaxel jet, rocket, any forced induction

What types of motors/engines provide maximum torque at 0 Rpms.

Electric ,Steam

Whats the maximum number of strokes that a reciprocating engine has used and remained effective?

6,

does a reciprocating engine have to have a crank shaft?

NO, wash plate etc

can a diesel engine have a carby, more importantly can it have it as the only source of fuel that gets to the combustion chamber?

Yes Yes

do you have to have valves in a reciprocating diesel engine?

No, 2 stroke, reed or rotary Valve, sleve valve,

what fueled the first reciprocating engines?

Gun powder, comresed air, steam

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work?

Yes 2 pistions 2 barals split Crod, the first pistion being used for comprestion only ( tubo, supercharger ) or with both pistions compressing and burning but with difrent crank timing ( comon combustion chamber) OR oposed pistions, 1 barral 2 cranks ( i think a german WW2 airplane had a motor like this??



have fun....


did i win? but not the spelling LOL

[JDNSW]

I'll have a go too.


ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned?

Supercharged or turbocharged

What types of motors/engines provide maximum torque at 0 Rpms.

Reciprocating steam or compressed air engines, some types of electric motor, hydraulic motors

Whats the maximum number of strokes that a reciprocating engine has used and remained effective?

Could be quite high and indeterminate if you include engines with a hit and miss governor and count the number of strokes between powere strokes.

does a reciprocating engine have to have a crank shaft?

No. For example, a free piston engine.

can a diesel engine have a carby, more importantly can it have it as the only source of fuel that gets to the combustion chamber?

Yes. 1. those engines that start as a petrol engine
2. Oil engines using hot bulb ignition, although whether you call the device that mixes oil and air a carburetter is a question, also whether these are strictly a diesel engine

do you have to have valves in a reciprocating diesel engine?

No - some rely entirely on ports in the cylinders, particularly opposed piston engines. Also note some diesels have had sleeve valves.

what fueled the first reciprocating engines?

Steam reciprocating engines were first coal fired. Internal combustion engines first used gunpowder, then coal gas.

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work?

Yes, opposed piston engines. Most notably the Junkers submarine engine of WW1, later used/copied in aircraft engines and probably most familiarly in the Commer knocker. These have two pistons opposite each other, with their connecting rods going to rockers and thence to the crankshaft which is alongside the midpoint of the cylinders.



have fun....

How about another couple of questions:-

Who uses variable compression engines and why?

What did the first diesel engines run on?

What is a turbo-compound engine?

What was the first mass produced engine with a detachable cylinder head covering all cylinders?

When were the first diesel cars on sale? (Make, where?)

What was the first diesel car sold in Australia?


John

[paulthepilot_5]

I'll have a go too.



How about another couple of questions:-

Who uses variable compression engines and why? SAAB SVC. it reduces the comp ratio when high power is required to reduce knocking. compresion ratio is increased to improve the efficiency at low power settings.

What did the first diesel engines run on? coal powder

What is a turbo-compound engine? a turbo charged engine in which a combustion chamber is placed in parrallel with the engine relative to the turbo. When engine is at low power settings the combustion chamber acts as a gas generator for the turbo to keep it spooled up and make instant boost available.

What was the first mass produced engine with a detachable cylinder head covering all cylinders?

When were the first diesel cars on sale? (Make, where?)

What was the first diesel car sold in Australia?


John
not sure about the rest :p

[Bigbjorn]

Turbo-compound design was used by Wright in aircraft engines. The turbochargers had output shafts geared to the crankshaft via a fluid coupling thus using the enrgy of the hot expanding exhaust gases to both compress the intake charge and drive the crankshaft. This is what I understand the term "turbo-compound" to mean. The 4360 cubic inch "corn-cob" was the ultimate expression of this design. A four row twenty-eight cylinder radial. The mass of cylinders were said to look like the kernels on a cob of corn.

[Pedro_The_Swift]

link no work,, :(

[Pedro_The_Swift]

Thanks to your post Brian I found this excellent site!
Google Image Result for http://fastjeff57.tripod.com/bristol.jpg (http://www.google.com.au/imgres?imgurl=http://fastjeff57.tripod.com/bristol.jpg&imgrefurl=http://fastjeff57.tripod.com/&h=261&w=662&sz=28&tbnid=W3RhNdTRmrwJ::&tbnh=54&tbnw=138&prev=/images%3Fq%3D4360%2Bcorn%2Bcob%2Bradial%2Bengine%2 Bpics&hl=en&usg=__aTyDGPP8QcfJtFe0SNvAebU25lQ=&sa=X&oi=image_result&resnum=1&ct=image&cd=1)



A site for anyone interested in engines.

[JDNSW]

Turbo-compound design was used by Wright in aircraft engines. The turbochargers had output shafts geared to the crankshaft via a fluid coupling thus using the enrgy of the hot expanding exhaust gases to both compress the intake charge and drive the crankshaft. This is what I understand the term "turbo-compound" to mean. The 4360 cubic inch "corn-cob" was the ultimate expression of this design. A four row twenty-eight cylinder radial. The mass of cylinders were said to look like the kernels on a cob of corn.

Pretty close - actually the same turbines were not used for both compressing the intake charge and gearing to the output shaft, but separate turbines.

The Napier Nomad engine used a gear driven compressor, but with exhaust turbines geared to the propeller shaft to provide up to 70% of output power.

The term could be applied as well to steam engines using both reciprocating and turbine stages - this was used in a number of ships and a few locomotives, where it was found that a fourth or fifth stage of expansion was easier to fit in with a turbine, as a cylinder would be too large.

John

[paulthepilot_5]

Turbo-compound design was used by Wright in aircraft engines. The turbochargers had output shafts geared to the crankshaft via a fluid coupling thus using the enrgy of the hot expanding exhaust gases to both compress the intake charge and drive the crankshaft. This is what I understand the term "turbo-compound" to mean. The 4360 cubic inch "corn-cob" was the ultimate expression of this design. A four row twenty-eight cylinder radial. The mass of cylinders were said to look like the kernels on a cob of corn.

HA HA, bugger, i was getting turbo compounding mixed up with Hyper-Charging:( Actually had a Wright engine out of a Neptune siting around at work for a while too, a good example of a Turbo-Compound engine

[isuzurover]

Another question: Which reciprocating engine is solar powered?

[mcrover]

I'll have a go too.



How about another couple of questions:-

Who uses variable compression engines and why?a.Peugeot, Kubota, Diahatsu, Maybe Mitsubishi ? b. For easier starting and better economy for continuous running at contant revs in stationary situations, automotive I dont know

What did the first diesel engines run on?Peanut oil

What is a turbo-compound engine?No idea but a couple of answers in above posts

What was the first mass produced engine with a detachable cylinder head covering all cylinders?Dont know

When were the first diesel cars on sale? (Make, where?)I would say pretty early on, probably in europe most likely Germany

What was the first diesel car sold in Australia?Peugeot something 504 or something like that I think.....probably wrong though


John


Im just guessing most of it......obviously

[clean32]

Another question: Which reciprocating engine is solar powered?

Stirling

[vnx205]

Another good question could have been, "Which engine simultaneously held the land, water and air speed records?"

The answer was one of the many interesting facts, explanations and pieces of trivia I noticed on Pedro's fascinating site.


Thanks to your post Brian I found this excellent site!
Google Image Result for http://fastjeff57.tripod.com/bristol.jpg (http://www.google.com.au/imgres?imgurl=http://fastjeff57.tripod.com/bristol.jpg&imgrefurl=http://fastjeff57.tripod.com/&h=261&w=662&sz=28&tbnid=W3RhNdTRmrwJ::&tbnh=54&tbnw=138&prev=/images%3Fq%3D4360%2Bcorn%2Bcob%2Bradial%2Bengine%2 Bpics&hl=en&usg=__aTyDGPP8QcfJtFe0SNvAebU25lQ=&sa=X&oi=image_result&resnum=1&ct=image&cd=1)


A site for anyone interested in engines.

[isuzurover]

Stirling

Well done! We had a small one at Griffith Uni . for open days. It was good fun to play with. But when it got too hot you had to let it cool down for a while.




As for the two pistons in one bore, there were several motorbikes which had a single (figure 8) bore with 2 pistons (and were connected at the cylinder head):
https://www.aulro.com/afvb/images/imported/2008/11/601.jpg

EDIT: this site has more info on the above engine:
http://home.sprynet.com/~inniss/sears.htm




I am sure there was an (prototype) engine with 2 crankshafts (like a reverse boxer) - where 2 pistons came together, so they acted as both piston and cylinder head. Anyone know what engine that was?

[clean32]

Another good question could have been, "Which engine simultaneously held the land, water and air speed records?"

The answer was one of the many interesting facts, explanations and pieces of trivia I noticed on Pedro's fascinating site.

i would say RR, the early veron to the Griffin, ie not the kestral or the merlin

[JDNSW]

Another good question could have been, "Which engine simultaneously held the land, water and air speed records?"

The answer was one of the many interesting facts, explanations and pieces of trivia I noticed on Pedro's fascinating site.

Without looking it up, I would say it was almost certainly the Napier Lion - from memory it was used in the early Schneider Trophy racers, one of which probably held the air speed record for a brief time, and it was definitely used in at least one land speed record car (Segrave?) and in the first Bluebird boat.

John

[blitz]

I am sure there was an (prototype) engine with 2 crankshafts (like a reverse boxer) - where 2 pistons came together, so they acted as both piston and cylinder head. Anyone know what engine that was?[/quote]

I have a feeling one went into production and was used in a patrol boat, Im not sure if it was English or American. I will have to quiz dad.

Blythe

[slug_burner]

https://www.aulro.com/afvb/images/imported/2008/11/596.jpg
An example of an opposed piston engine.
1 intake for the fuel-air mixture
2 supercharger (here: rotary vane pump; original: Centrix)
3 airbox to buffer and distribute the mixture
4 waste valve to limit the pressure level
5 outlet crank mechanism
6 inlet crank mechanism (runs app. 20° past the outlet to achieve an asymmetric control diagram)
7 cylinder with inlet and outlet slots
8 exhaust
9 water cooling jacket
10 sparkplug
moving picture (http://en.wikipedia.org/wiki/Image:Opposite_piston_engine_anim.gif) (gif) of above

[Pipe]

Hi, Do you know a bloke named "Thirsty" he used to live at Grafton and his dad actually built an apposed piston engine in a single barrell. This is a great little engine that has never really been recognised for what it is, Built in the late 50s it had it's crank along the top running off what are called swusher plates, and, this crank was also used as the impeller of the supercharger and a rotary exaust valve system. Being only a proto type it had no rings and I'm told it a a slight melting problem around 30,000 rpm. I never saw the engine going but I did play with it and it is a very cute little thing.

[Bigbjorn]

One of the big French veteran cars, Gobron-Brillie had an interesting engine that ran opposed piston in a common cylinder. The upper pistons were linked to the crankshaft by rods and crossheads. There was one in Melbourne, rerstored in the 50's?, but I have not seen or heard of it since then.

[Blknight.aus]

Answeres in RED


ok so Im bored..... I'll give answers in a couple of weeks....

think you know engines and motors....

What types of engines/motors provide better preformance at higher altitudes without having to be retuned?
Reciprocating steam engines, some configurations of turbine engines, air-air intercooled turbo charged engines with aneroid compensation (this also covers most electronically controlled turbo charged engines

What types of motors/engines provide maximum torque at 0 Rpms.
Reciprocating steam engines, some turbine configurations and most electric motors

Whats the maximum number of strokes that a reciprocating engine has used and remained effective?
6, not counting hit and miss governed engines

does a reciprocating engine have to have a crank shaft?
no some pumping engines couple a piston directly to the bottom of a double acting piston and still in more common use is the diesel hammer which is essentially an upside down engine that fires the piston up out of the block on guide rods

can a diesel engine have a carby, more importantly can it have it as the only source of fuel that gets to the combustion chamber?
Yes some diesels that require preheating on petrol have a dedicated carby to supply the fuel during warm up, in the same era of diesels a 3 valve system was used one air intake, one exhaust and one from a vaporisor which does the same thing as a carby but fuels anything similar to diesel/kero power was controled by the opening duration of the vaporisor fed valve

do you have to have valves in a reciprocating diesel engine?

no, you can have a sleeve ported 2 stroke diesel

what fueled the first reciprocating engines?
wood and wood derivitives, the first reciprocating engines were steam powered

running diesel can you put 2 pistons into a single cylinder? if you can how could you make it work?
yes the commer knocker is the most common example with 2 pistons in a common bore connected to rockers which then couple to the crank



have fun....


Another question: Which reciprocating engine is solar powered?

The stirling.but thats not the only thing it can run off

[B92 8NW]

When were the first diesel cars on sale? (Make, where?)

What was the first diesel car sold in Australia?


John

Mercedes Benz 260D, Germany, 1936.

They've had quite a few firsts:cool: YouTube - Mercedes-Benz World History Timeline promotional video (http://www.youtube.com/watch?v=5m_x1MlMR-Y)

Not sure about the first in Australia though.