Tips: reducing fuel consumption

Tips, advice and tips to lower your consumption, processes or inventions as unconventional engines: the Stirling engine, for example. Patents improving combustion: water injection plasma treatment, ionization of the fuel or oxidizer.
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bham
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by bham » 04/07/07, 09:38

Cuicui wrote:Since I always go into neutral in the slightest descent, the autonomy of my ZX TD breake exceeds 1000 km, conso lower than 5l. The brake pads do not seem to suffer too much ...


And before you do that, how much was your conso? Me, with the same car, I could never do more than 750 kms !!! that makes 7l / 100 on average.
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Cuicui
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by Cuicui » 04/07/07, 10:59

bham wrote:
Cuicui wrote:Since I always go into neutral in the slightest descent, the autonomy of my ZX TD breake exceeds 1000 km, conso lower than 5l. The brake pads do not seem to suffer too much ...

And before you do that, how much was your conso? Me, with the same car, I could never do more than 750 kms !!! that makes 7l / 100 on average.

Hi Bham,
In 2000, when I bought this ZX TD from 1996, it had 42 000 km and was not already consuming much (5,5 l). Currently she only has 120 000 km. She has always been spared and I am used to riding the economy.
I think your ZX consumes a lot. But she is older. A doping with water would undoubtedly do him good ...
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sam44
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by sam44 » 04/09/07, 12:25

Two weeks ago my mother bought the new toyota prius, she is really good and make no noise, she consumes very little!
if you want to change your car take it or have the engine changed by a green system!
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SixK
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by SixK » 04/09/07, 13:29

The prius is expensive and not so ecological as that!
We must recognize that in the city, it looks much better than a normal car (as long as it remains battery), but 50 Km / h passed I understand that it consumed more or at least as much as 'a non-hybrid car ...

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sam44
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by sam44 » 04/09/07, 13:39

yes, but ours does not consume much, because we do not drive almost in town, we make no big trip with it ...
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bamboo
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by bamboo » 04/09/07, 14:57

It consumes slightly less than the others even beyond 50km / h: it recovers energy braking. It uses the energy gained during a descent to climb the next hill.

Well, I know that the Prius is not very good press here, but it's still a good concept for my taste.
And the silence in the city or in deceleration is quite surprising.

SixK wrote:The prius is expensive and not so ecological as that!
We must recognize that in the city, it looks much better than a normal car (as long as it remains battery), but 50 Km / h passed I understand that it consumed more or at least as much as 'a non-hybrid car ...

SixK
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Woodcutter
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by Woodcutter » 07/09/07, 16:37

Cuicui wrote:
indy49 wrote:
Cuicui wrote:Since I always go into neutral in the slightest descent, the autonomy of my ZX TD breake exceeds 1000 km, conso lower than 5l. The brake pads do not seem to suffer too much ...

Strange that. Normally the injectors are cut when you release the accelerator downhill ...

I guess that's the case for HDIs and INNs, but not for old TDs, otherwise, how do you explain the economy? On the other hand, I try to ride in light under-regime; unfortunately, the 5ème is very short ...
Same for me and the explanation is the same too: no cut off when lifting the foot for "old" Diesel injections ...

Result of "cool" driving and the use of inertia: 5.52 l / 100 km for a 1991 car, 160 km, 000 kg and 1380 hp ... : Mrgreen:
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dreamer
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by dreamer » 28/09/07, 17:23

Hello Hello.

I am looking for numbers regarding the following question:

From how much downtime is it better to completely shut down the engine rather than idling it, given the fact (I presume) that starting an engine consumes more fuel than idling .

I could find on a forum a notice of qq1 citing the figures of the ademe (without possibility to check, or in any case I did not find on their site and I did not send an email to ask) who say that beyond 30 dry, it is better to turn off the engine.

What do you think?

And if not thanks to this question which I asked myself, I discovered that Citroen had implemented a system "stop and start" on their C3 and C2, which cuts the engine automatically when one is at the stop and that as long as you press the brake pedal.
When it is released, in a completely transparent and fast way, the engine restarts and we do not even feel any difference with a car not equipped with this system.
A VERY GOOD point for Citroen!

And if not about the first story of this subject:

# As far as possible, let your engine warm up before starting to drive. For example, start it before putting on your seatbelt ... a few seconds of warm-up never hurts. Don't "pull" on it when it's cold! This greatly increases the wear and tear of your engine and creates significant overconsumption.

What is the optimal time to leave the engine running before putting the car in motion?
5 dry to put his belts are they enough?

We look forward to seeing you!
Dreamer

Edit: I just found this:

Shut off the engine in the heat (long fire)

This approach still assumes that the engine is hot (it restarts very easily).
We all arrive at a fire that has just turned red and we know we have for a minute. It seems to me relevant to turn off the engine in this case. This is even more relevant when there are big traffic jams or when waiting for several minutes. Some argue that it reduces the life of the battery but I do it systematically since 7 years and have not yet changed battery more than 100 000 km (it is just starting to show some signs of weakness). The outstanding question is the estimated minimum waiting time. In general, we say 30 seconds but I have already read 10 seconds. It is therefore necessary to apply this quite often in the city.


source: http://www.paperblog.fr/190921/reduire- ... iture-2-3/
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bobono
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Fuel economy




by bobono » 28/09/07, 17:54

I invite you all to read the article by J EAN Marc Moreau in the journal Nexus Science alternative editions francaise.

He tells us about his new prototype for saving fuel. The tests were performed in front of two different ushers. Result 77% d fuel economy.

He must perform tests on heavy weight with ushers to certify the thing.

To answer the comments I read above. In deceleration that it is the engine there is always a mini fuel injection corespondant the consomation of a slow engine.
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dreamer
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by dreamer » 28/09/07, 18:07

Deceleration => engine brake?
Because, in a case on a new cars, the consumption in frien engine is NULLE because it is the inertia of the vehicle which turns the pistons.
There is a return of the injection only under a certain speed (1000 rpm?) To avoid a blockage of the engine.
On the other hand at the dead point, there is consumption yes.

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