how many rotations of crankshaft does it take to fire all cylindersof v8 engine

Diesel engines don't need spark plugs.
cuhulin

C. E. White wrote:
> "Killer Kowalski" > wrote in message
> net...
>> The best and most accurate and most concise response remains --
>>
>> "The number of cylinders is irrelevant. A four stroke engine fires
>> all
>> cylinders in two revs, a two stroke engine in a single rev, no
>> matter
>> how many cylinders it has."
>>
>> from "Thomas Tornblom"
>
> How about a Wankel? They are four stroke.....

A four stroke that has a power stroke for every rotation of the
crankshaft, two if it's a two rotor motor. Three power strokes for every
revolution of the rotor. Wow.

>
> Ed
>
>

No, actually, the Wankel Rotary Combustion engine is not *accurately*
described as a four stroke cycle engine as nothing in its internals
completes a stroke. One properly refers to phases of the combustion
cycle when speaking in reference to a rotary combustion engine...

C. E. White wrote:
> "Killer Kowalski" > wrote in message
> net...
>> The best and most accurate and most concise response remains --
>>
>> "The number of cylinders is irrelevant. A four stroke engine fires
>> all
>> cylinders in two revs, a two stroke engine in a single rev, no
>> matter
>> how many cylinders it has."
>>
>> from "Thomas Tornblom"
>
> How about a Wankel? They are four stroke.....
>
> Ed
>
>

I apologize, but I fail to see the relevance of sparkplugs to the matter
under discussion...

A four stroke cycle Diesel still requires 720 degrees of crank rotation
to fire all cylinders... and, again, a two stroke cycle Diesel requires
only 360 degrees...

wrote:
> Diesel engines don't need spark plugs.
> cuhulin
>

> wrote in message
...
> Diesel engines don't need spark plugs.
> cuhulin
>
I think the diesel is included in the "fire allcylin..." part of the
subject. And there
are four stroke cycle diesels as well as two stroke cycle diesels.

Killer Kowalski wrote:
> No, actually, the Wankel Rotary Combustion engine is not *accurately*
> described as a four stroke cycle engine as nothing in its internals
> completes a stroke. One properly refers to phases of the combustion
> cycle when speaking in reference to a rotary combustion engine...

The Wankel does have cycles of induction, compression, power, and
exhaust when doing it's thing - my guess is that's the reason a lot of
folks are fooled into believing it's a 4 stroke engine. Consider me guilty!

>
> C. E. White wrote:
>> "Killer Kowalski" > wrote in message
>> net...
>>> The best and most accurate and most concise response remains --
>>>
>>> "The number of cylinders is irrelevant. A four stroke engine fires all
>>> cylinders in two revs, a two stroke engine in a single rev, no matter
>>> how many cylinders it has."
>>>
>>> from "Thomas Tornblom"
>>
>> How about a Wankel? They are four stroke.....
>>
>> Ed
>>

Killer Kowalski wrote:
> No, actually, the Wankel Rotary Combustion engine is not *accurately*
> described as a four stroke cycle engine as nothing in its internals
> completes a stroke. One properly refers to phases of the combustion
> cycle when speaking in reference to a rotary combustion engine...

The Wankel does have cycles of induction, compression, power, and
exhaust when doing it's thing - my guess is that's the reason a lot of
folks are fooled into believing it's a 4 stroke engine. Consider me guilty!

>
> C. E. White wrote:
>> "Killer Kowalski" > wrote in message
>> net...
>>> The best and most accurate and most concise response remains --
>>>
>>> "The number of cylinders is irrelevant. A four stroke engine fires all
>>> cylinders in two revs, a two stroke engine in a single rev, no matter
>>> how many cylinders it has."
>>>
>>> from "Thomas Tornblom"
>>
>> How about a Wankel? They are four stroke.....
>>
>> Ed
>>

no guilt associated... unless the guilt is mine for wishing to keep
the 'tech' portion of this newsgroup's name valid

dsi1 wrote:
> Killer Kowalski wrote:
>> No, actually, the Wankel Rotary Combustion engine is not *accurately*
>> described as a four stroke cycle engine as nothing in its internals
>> completes a stroke. One properly refers to phases of the combustion
>> cycle when speaking in reference to a rotary combustion engine...
>
> The Wankel does have cycles of induction, compression, power, and
> exhaust when doing it's thing - my guess is that's the reason a lot of
> folks are fooled into believing it's a 4 stroke engine. Consider me guilty!
>
>>
>> C. E. White wrote:
>>> "Killer Kowalski" > wrote in message
>>> net...
>>>> The best and most accurate and most concise response remains --
>>>>
>>>> "The number of cylinders is irrelevant. A four stroke engine fires all
>>>> cylinders in two revs, a two stroke engine in a single rev, no matter
>>>> how many cylinders it has."
>>>>
>>>> from "Thomas Tornblom"
>>>
>>> How about a Wankel? They are four stroke.....
>>>
>>> Ed
>>>

"Killer Kowalski" > wrote in message
net...
> No, actually, the Wankel Rotary Combustion engine is not
> *accurately* described as a four stroke cycle engine as nothing in
> its internals completes a stroke. One properly refers to phases of
> the combustion cycle when speaking in reference to a rotary
> combustion engine...


Geez...get technical will you. Look at stroke definition 6a below (6 a
: one of a series of propelling beats or movements against a resisting
medium) or even definition 2 (2 : a single unbroken movement. Why
can't I properly say a Wankel is a 4 stroke engine using one of these
definitions of stroke? For a piston engine stoke definition 9 seems
best (9 : the movement in either direction of a mechanical part (as a
piston) having a reciprocating motion; also : the distance of such
movement)

From http://www.merriam-webster.com/dictionary/stroke :

Main Entry: stroke
Function: noun
Etymology: Middle English; akin to Old English strican to stroke -
more at strike
Date: 13th century
1 : the act of striking; especially : a blow with a weapon or
implement
2 : a single unbroken movement; especially : one of a series of
repeated or to-and-fro movements
3 a : a controlled swing intended to hit a ball or shuttlecock; also :
a striking of the ball b : such a stroke charged to a player as a unit
of scoring in golf
4 a : a sudden action or process producing an impact <a stroke of
lightning> b : an unexpected result <a stroke of luck>
5 : sudden diminution or loss of consciousness, sensation, and
voluntary motion caused by rupture or obstruction (as by a clot) of a
blood vessel of the brain -called also apoplexy, brain attack,
cerebrovascular accident
6 a : one of a series of propelling beats or movements against a
resisting medium <a stroke of the oar> b : a rower who sets the pace
for a crew
7 a : a vigorous or energetic effort by which something is done,
produced, or accomplished <a stroke of genius> <a brilliant diplomatic
stroke> b : a delicate or clever touch in a narrative, description, or
construction
8 : heartbeat
9 : the movement in either direction of a mechanical part (as a
piston) having a reciprocating motion; also : the distance of such
movement
10 : the sound of a bell being struck <at the stroke of twelve>; also
: the specific time indicated by or as if by such a sound
11 [1stroke] : an act of stroking or caressing
12 a : a mark or dash made by a single movement of an implement b :
one of the lines of a letter of the alphabet
- at a stroke : all at once <spent her savings at a stroke>

Killer Kowalski wrote:
> no guilt associated... unless the guilt is mine for wishing to keep
> the 'tech' portion of this newsgroup's name valid
>

The Wankel does have a crankshaft so there's gotta be a stroke involved
somewhere and the engine does have a thingie up front with regular
timing marks. I can't call it a harmonic balancer cause the crank was a
short, hefty, piece of metal and probably didn't need one.

My RX-2 had 2 distributors, a really big 4-barrel carburetor and a small
oil pump that shot motor oil into the carb to keep the seals lubricated
- just like a 2 stroke. It was a small, high-revving engine that liked
to consume gas. :-)

> dsi1 wrote:
>> Killer Kowalski wrote:
>>> No, actually, the Wankel Rotary Combustion engine is not *accurately*
>>> described as a four stroke cycle engine as nothing in its internals
>>> completes a stroke. One properly refers to phases of the combustion
>>> cycle when speaking in reference to a rotary combustion engine...
>>
>> The Wankel does have cycles of induction, compression, power, and
>> exhaust when doing it's thing - my guess is that's the reason a lot of
>> folks are fooled into believing it's a 4 stroke engine. Consider me
>> guilty!
>>
>>>
>>> C. E. White wrote:
>>>> "Killer Kowalski" > wrote in message
>>>> net...
>>>>> The best and most accurate and most concise response remains --
>>>>>
>>>>> "The number of cylinders is irrelevant. A four stroke engine fires all
>>>>> cylinders in two revs, a two stroke engine in a single rev, no matter
>>>>> how many cylinders it has."
>>>>>
>>>>> from "Thomas Tornblom"
>>>>
>>>> How about a Wankel? They are four stroke.....
>>>>
>>>> Ed
>>>>