Do you know what four stroke means?
Do you know what four stroke means?

Poll: Do you know what four stroke means?

Total Members Polled: 438

Yes, and the thermodynamics behind it: 35%
Yes, from a mechanical point of view: 56%
I know it's something engine-related: 7%
Something to do with cars, isn't it?: 1%
No idea: 2%
Author
Discussion

crofty1984

Original Poster:

16,604 posts

223 months

Wednesday 23rd October 2013
quotequote all
Was just wondering about what the level of technical knowledge is on PH. Thought this would be interesting question to kick off with.

VinceFox

20,566 posts

191 months

Wednesday 23rd October 2013
quotequote all
Yes, and frankly if i didnt i'd probably be in the wrong place.

ThatsWhatShe

37,069 posts

207 months

Wednesday 23rd October 2013
quotequote all
Yep.

Suck squeeze bang blow.


budfox

1,510 posts

148 months

Wednesday 23rd October 2013
quotequote all
Yes I do.

CBR JGWRR

6,569 posts

168 months

Wednesday 23rd October 2013
quotequote all
ThatsWhatShe said:
Yep.

Suck squeeze bang blow.
Or, less umm, lowbrow, inhalation, compression, combustion, exhalation.


Works on women too.

poing

8,743 posts

219 months

Wednesday 23rd October 2013
quotequote all
I went for no idea.

It's probably something to do with sex.

leafspring

7,032 posts

156 months

Wednesday 23rd October 2013
quotequote all
Induction - compression - ignition - exhaust

CBR JGWRR

6,569 posts

168 months

Wednesday 23rd October 2013
quotequote all
leafspring said:
Induction - compression - ignition - exhaust
That's a much better phrase.

Fort Jefferson

8,237 posts

241 months

Wednesday 23rd October 2013
quotequote all
poing said:
I went for no idea.

It's probably something to do with sex.
Yes, it's a term used by women, to discribe men who come too quickly.

As in "he's a four stroke"

poing

8,743 posts

219 months

Wednesday 23rd October 2013
quotequote all
Fort Jefferson said:
poing said:
I went for no idea.

It's probably something to do with sex.
Yes, it's a term used by women, to discribe men who come too quickly.

As in "he's a four stroke"
Explains why I had no idea wink

Disco You

3,714 posts

199 months

Wednesday 23rd October 2013
quotequote all
What do you mean by the thermodynamics behind it?

Pints

18,448 posts

213 months

Wednesday 23rd October 2013
quotequote all
Four stroke I understand, it's two stroke that I can't get my head around. paperbag

METHS

1,983 posts

155 months

Wednesday 23rd October 2013
quotequote all
I wrote a 40 page technical report on the thermodynamics behind it and have designed parts that go inside a 4 stroke engine.

Rinsed and repeated for gas-turbine engines.

Bloody university.


</geek>

williredale

2,866 posts

171 months

Wednesday 23rd October 2013
quotequote all
Hah! I knew four years of engineering degree would come in handy one day!

Wacky Racer

40,170 posts

266 months

Wednesday 23rd October 2013
quotequote all
Four stroke cycle



Two stroke cycle





HTH...smile

SturdyHSV

10,310 posts

186 months

Wednesday 23rd October 2013
quotequote all
Wacky Racer said:
Four stroke cycle

I know you didn't make the diagram, but it's not really an explosion, but combustion.

tongue out

V88Dicky

7,352 posts

202 months

Wednesday 23rd October 2013
quotequote all
Christ.

Someone will be along to explain stoichiometric ratio next!

MissChief

7,662 posts

187 months

Wednesday 23rd October 2013
quotequote all
I knew that a two stroke engine 'mixed' the exhaust and induction phases but I've never seen a cut away plan like that. Are all two stroke pistons shaped like that as opposed to the (relatively) flat-topped 4 stroke pistons?

leafspring

7,032 posts

156 months

Wednesday 23rd October 2013
quotequote all
V88Dicky said:
Christ.

Someone will be along to explain stoichiometric ratio next!
The ideal air to fuel ratio mix for optimum combustion... can't remember the exact ratio though (I know it had a 4 in it)

BMW3s6

2,833 posts

217 months

Thursday 24th October 2013
quotequote all
Some willy waiving going on in here