has there ever been a car that ran an opposed piston engine?
17-06-2009, 07:42 PM
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has there ever been a car that ran an opposed piston engine?
as above, a bloke at work work talking about them today and they sounded like quite a clever idea, to me
17-06-2009, 07:43 PM
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17-06-2009, 07:46 PM
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an apposed piston engine doesnt have a cylinder head, just a a block with a crank at both ends, fuel, air and ignition is entered in the middle as the two pistons come towards each other, if that makes sense?
17-06-2009, 07:47 PM
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Horizontally opposed? Boxer engine?
17-06-2009, 07:48 PM
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he means with pistons facing each other
17-06-2009, 07:48 PM
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iirc one of the autounion cars did...
17-06-2009, 07:50 PM
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early train diesel are similar design
17-06-2009, 07:50 PM
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Quote:
Originally Posted by
jacko
he means with pistons facing each other
Aye ... I posted 12 seconds after he did
Never heard of an engine like that .. I could imagine a 2 stroke that works that way.
17-06-2009, 07:51 PM
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Quote:
Originally Posted by
Dark-Horse
Horizontally opposed? Boxer engine?
17-06-2009, 07:51 PM
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17-06-2009, 07:52 PM
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17-06-2009, 07:55 PM
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Thanks ... I know what a Boxer engine is ..
Come on then .. lets see some exmples?
17-06-2009, 07:55 PM
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designed in the early 1900's IIRC thought these were only made for diesel fuel tho?
17-06-2009, 07:55 PM
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Quote:
Originally Posted by
Twellsie
as above, a bloke at work work talking about them today and they sounded like quite a clever idea, to me
What did you think was clever about it?
Sounds like a crap idea to me,lol.
17-06-2009, 07:59 PM
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Nice pic Twellsie ..
17-06-2009, 08:02 PM
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could be a 2 stroke quite easily then with no valves
, but I would imagine the stroke would have to be very short or the compression ratios would be mad!
17-06-2009, 08:02 PM
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17-06-2009, 08:02 PM
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Quote:
Originally Posted by
Dark-Horse
Thanks ... I know what a Boxer engine is ..
Come on then .. lets see some exmples?
the above are not boxer engines, boxers have the crank in the middle and the pistons outbound
17-06-2009, 08:05 PM
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Quote:
Originally Posted by
RWD_cossie_wil
could be a 2 stroke quite easily then with no valves
, but I would imagine the stroke would have to be very short or the compression ratios would be mad!
but i imagine you can run masive compression ratios, as there are no cylinder heads/gaskets to worry about
17-06-2009, 08:05 PM
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Quote:
Originally Posted by
Twellsie
the above are not boxer engines, boxers have the crank in the middle and the pistons outbound
A true Boxer engine has the pistons being pushed towards each other as in 2 boxers fighting.
Boxer has been mis-used to describe flat engines.
.
17-06-2009, 08:06 PM
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Quote:
Originally Posted by
Twellsie
the above are not boxer engines, boxers have the crank in the middle and the pistons outbound
As stated mate ... Boxer engine has crank in middle ..
Like a porker Flat 6
Last edited by .Ross.; 17-06-2009 at 08:08 PM .
17-06-2009, 08:16 PM
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Quote:
Originally Posted by
focusv8
A true Boxer engine has the pistons being pushed towards each other as in 2 boxers fighting.
no mate, this is a boxer engine
mot to be confused with the 180° V-engines
Last edited by Twellsie; 17-06-2009 at 08:18 PM .
17-06-2009, 08:17 PM
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at first i thought he was on about steam engines, they work like that, one piston but 2 ends when they thought of the design to make use of the extra steam
17-06-2009, 08:18 PM
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Quote:
Originally Posted by
focusv8
A true Boxer engine has the pistons being pushed towards each other as in 2 boxers fighting.
Quote:
Originally Posted by
Dark-Horse
As stated mate ... Boxer engine has crank in middle ..
Like a porker Flat 6
which is wht he was saying
17-06-2009, 08:22 PM
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Quote:
Originally Posted by
dojj
which is wht he was saying
Or Horizontally opposed.
The engine Twellsie was on about is summit totally different? 180* V
17-06-2009, 08:24 PM
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Quote:
Originally Posted by
Twellsie
no mate, this is a boxer engine
mot to be confused with the 180° V-engines
This will be the infamous Boxer variant where the right hand piston has a 17mm stroke and the left hand one has a 29mm stroke, due to the right hand conrod running on the eccentric crank centre line.
.
17-06-2009, 08:25 PM
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Quote:
Originally Posted by
Dark-Horse
Or Horizontally opposed.
The engine Twellsie was on about is summit totally different? 180* V
you are confussing the hell out of me here
17-06-2009, 08:27 PM
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Quote:
Originally Posted by
Twellsie
but i imagine you can run masive compression ratios, as there are no cylinder heads/gaskets to worry about
Still ultimately limited by PCP and the quality of fuel being used etc.... the normal rules would still apply.
17-06-2009, 08:31 PM
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Quote:
Originally Posted by
Twellsie
you are confussing the hell out of me here
As far as iam aware a Boxer or Horizontally opposed engine has the crank in the middle. Flat engine found in porkers.
The one you described (with Pics) I've never seen before ... I never went to
The history of Engine class.
Got to hand it to you: Pretty interesting thread ... The replys came to fast and some got mixed up
Last edited by .Ross.; 17-06-2009 at 08:33 PM .
17-06-2009, 08:42 PM
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Quote:
Originally Posted by
Dark-Horse
As far as iam aware a Boxer or Horizontally opposed engine has the crank in the middle. Flat engine found in porkers.
The one you described (with Pics) I've never seen before ... I never went to
The history of Engine class.
Got to hand it to you: Pretty interesting thread ... The replys came to fast and some got mixed up
I am pressuming that is the difference between a Horizontally opposed engine and an opposed piston engine?
like the fairbanks morse opposed piston deltic
17-06-2009, 08:45 PM
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Quote:
Originally Posted by
Twellsie
I am pressuming that is the difference between a Horizontally opposed engine and an opposed piston engine?
like the fairbanks morse opposed piston deltic
Yeah .. I supose
Changed a timming belt on one of those the other day
EDIT: Do'H It didnt have a timming belt
Last edited by .Ross.; 17-06-2009 at 08:46 PM .
17-06-2009, 08:45 PM
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Quote:
Originally Posted by
Twellsie
I am pressuming that is the difference between a Horizontally opposed engine and an opposed piston engine?
like the fairbanks morse opposed piston deltic
holy shit what did that power
17-06-2009, 08:50 PM
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Quote:
Originally Posted by
rs-tuner
holy shit what did that power
over 3000bhp apparently
17-06-2009, 08:52 PM
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lol, the question was what did it power, not what power did it make.
17-06-2009, 08:53 PM
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deltics now were talking..................
17-06-2009, 08:58 PM
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Wiki is a wonderful thing
Are they still in use?
No wonder your mate get's a stiffy on over them ..
17-06-2009, 09:04 PM
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Quote:
Originally Posted by
Dark-Horse
Wiki is a wonderful thing
Are they still in use?
No wonder your mate get's a stiffy on over them ..
I dont think he gets a stiffy over them
we where just talking about engines, lol
17-06-2009, 09:07 PM
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Quote:
Originally Posted by
Twellsie
I dont think he gets a stiffy over them
we where just talking about engines, lol
No worries ... I use to get stiffys over MTU's And QSK's
Bet they churn out horrendous emission.
17-06-2009, 09:13 PM
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Quote:
Originally Posted by
Dark-Horse
i have no idea what they are
17-06-2009, 09:20 PM
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Hi all,
Some 1960's Commer truck's used a 3 cylinder opposed piston 2 stroke supercharged diesel, that had a single crankshaft at 90 degree's to the cylinder's and below them, the piston's had conrod's connected to rocker arm's that had another set of conrod's connecting to the crankshaft !
This engine was known as a "Commer screamer" as it had a great sound.
Other than a rotary engine this was the last "unusual" type of engine on our road's.
The Deltic engine was made by Napier.
Andy
Last edited by racer; 17-06-2009 at 09:29 PM .
Reason: Added picture
17-06-2009, 08:02 PM
, but I would imagine the stroke would have to be very short or the compression ratios would be mad!
