Exhaust traps & emissions

[winston]

4698 is a tricky bus to catch because you never know what route it will turn up on. its my favourite E400 and it sounds amazing. its such a shame that next year, euro 2's and euro 3 buses aren't allowed into the city centre.

It will be from May 2017, not next year

Euro 3's are allowed in to City Centre from that date, but on low frequency routes only.

[Sh4318]

It will be from May 2017, not next year

Euro 3's are allowed in to City Centre from that date, but on low frequency routes only

Does that date apply to both single and double deckers?

[winston]

Does that date apply to both single and double deckers?

I believe single deckers may be earlier than that date, with double deckers by May 2017

[Ronnoc]

I believe single deckers may be earlier than that date, with double deckers by May 2017

I've heard @Tony say something about a little object in the exhaust that can make a bus suitable to be allowed in the city centre on higher frequency routes.

[Sh4318]

I've heard @Tony say something about a little object in the exhaust that can make a bus suitable to be allowed in the city centre on higher frequency routes.

I heard that, although it's around £20,000 to fit one per bus

[Tony]

I heard that, although it's around £20,000 to fit one per bus

Equinox do a particulate trap for around £15,000 that can make vehicles the equivalent of Euro 6

[2900]

Equinox do a particulate trap for around £15,000 that can make vehicles the equivalent of Euro 6

That's quite an achievement from fitting the dpf trap to a euro 3 engine I assume there would be software changes as well , I assume most gems and enviros still have at least 5 to 8 years service in them to warrant the expense if need be.

[Liverpool Street]

DPF filter got a longer life than the ones fitted to diesel cars...

Anyone know the technology behind these traps you'll know they only burn off diesel particles if the engine has been running fast (at speed, motor way driving whatever) for a while (1hr or around).

So I'm struggling to see how these bus ones, except for being commercial as opposed to domestic (cars)

[winston]

DPF filter got a longer life than the ones fitted to diesel cars...

Anyone know the technology behind these traps you'll know they only burn off diesel particles if the engine has been running fast (at speed, motor way driving whatever) for a while (1hr or around).

So I'm struggling to see how these bus ones, except for being commercial as opposed to domestic (cars)

Although these traps may allow a number of existing Euro 3 buses to be used beyond the May 2017 cut off date within the City Centre SQPS Zone on higher frequency routes. Ultimately, the buses that could be retro-fitted with these traps will still not be as fuel efficient / lighter weight as brand new Euro 6 counterparts. I'd assume no buses older than 2003/4 would be considered for retrofitting, otherwise the traps will be worth more than the bus itself.

[tank90]

Although these traps may allow a number of existing Euro 3 buses to be used beyond the May 2017 cut off date within the City Centre SQPS Zone on higher frequency routes. Ultimately, the buses that could be retro-fitted with these traps will still not be as fuel efficient / lighter weight as brand new Euro 6 counterparts. I'd assume no buses older than 2003/4 would be considered for retrofitting, otherwise the traps will be worth more than the bus itself.

Why not fit them to all the fleet i.e. euro 3 4 5 and 6 as it might make them all cleaner in the long run, or have i missed something along the line.

[winston]

Why not fit them to all the fleet i.e. euro 3 4 5 and 6 as it might make them all cleaner in the long run, or have i missed something along the line.

You missed the extra £23.1 Million you would need to pay for it i.e. £15k x 1540 buses.

[tank90]

You missed the extra £23.1 Million you would need to pay for it i.e. £15k x 1540 buses.

Oh yeah the price of health for those of us with asthma lol ;-)

I mean the cost to fit to the fleet..... sorry.

[winston]

Oh yeah the price of health for those of us with asthma lol ;-)

I mean the cost to fit to the fleet..... sorry.

And what about the millions of cars ?? I doubt it would make an noticeable benefit

[tank90]

And what about the millions of cars ?? I doubt it would make an noticeable benefit

Granted, but a bus thats idling pollutes a lot in a traffic jam. I know Cars and VW cars pollute a lot as well but surly bus builders should look at how they can build one that does the same and fit it as standard along with what they do now.



ps maybe this convo needs moving to a thread of its own so we don't fill the this thread with it.

[Tony]

Granted, but a bus thats idling pollutes a lot in a traffic jam. I know Cars and VW cars pollute a lot as well but surly bus builders should look at how they can build one that does the same and fit it as standard along with what they do now.

They do!
That's why buses are now Euro 6, cleaner than most small vehicles. That is why there are Hydrogen buses that emit Water & Electric buses that emit nothing at source