Alexander Dennis Enviro400
|Years of manufacture||2005 to present|
|Length||10.4 or 11.5 metres|
The modular chassis is made from welded steel sections and treated with corrosion resistant two-pack epoxy. The aluminium body is integrated with the chassis using clean frame joints, and the dissimilar metals are treated with dielectric paint to prevent corrosion.
The Enviro400 chassis can be fitted with bodywork from other suppliers. Likewise, the Enviro400 body can be fitted onto the Volvo Buses B9TL and the Scania N230UD chassis. There is one example of an Enviro400 body fitted on a Volvo B7TL chassis before the introduction of the B9TL.
On November 4, 2008, a diesel-electric series hybrid version called the Enviro400H was unveiled at the Euro Bus Expo in Birmingham, England.
A revised Enviro400 body debuted at the 2009 Coach & Bus Live. A line of white LED lights was incorporated under the existing headlights, and new curves were added on the front bumper.
The first Enviro400 buses to operate in Hong Kong (for Citybus and Kowloon Motor Bus) were delivered in 2009. They feature a large HVAC system and the updated front fascia. Further exports of the Enviro400 were made to Canada and the United States, however only as an open-top sightseeing bus. One of the first orders was placed in 2010 for 10 Enviro400 buses from Coach USA subsidiary Twin America, in New York. The front and rear of the export variants' top deck share the design of the Enviro500 respective of region.
The Euro 6 Enviro400 was introduced in May 2014 and features a new look, new heating and ventilation system, new glazing system, decreased weight, and increased seating capacity. Under a Major Model Change project, Alexander Dennis worked with over 70 operators in a three-year period to improve the design of the Enviro400.
The updated Enviro400 continues with the curved and sloping front end. A new headlight cluster flows into the windshield and the front and rear bumpers are accented by a cut-out at the bottom. Glazing on the front and rear is flush-mounted to the body instead of gasket mounted as previously used. The rear around the engine flares outward gently. This is evoked on the front around the destination sign and windshield.
The interior was redesigned with elements to improve ergonomics and appeal for both passengers and drivers. The bus is able to seat one more person in a London configuration, five more in the hybrid model, and seven more in the full-length model. The bus now features Alexander Dennis's L-shaped "Square-case" staircase. The electrical system is housed within the body structure and is composed of modular sections for easier replacement.
The updated Enviro400 features Alexander Dennis's Quick Release Glazing (QRG) system. The window frame is attached to the body with its face flush with the body panels, and the glass is retained against the frame by a removable retainer. This allows the glass to be removed from inside the vehicle instead of from an external platform.
Specifications (on Enviro400 chassis)
- 10.2m, 10.9m, 11.4m (Euro 5)
- 10.345m, 10.895m, 11.495m (Euro 6)
- Width: 2550mm
- Height: 4.2m or 4.3m
- Cummins ISCe Euro 3, 6 cylinder
- Caterpillar C7 Euro 4, 230 or 250 hp
- Cummins ISBe Euro 4, 6 cylinder, 250 hp
- Cummins ISBe Euro 5/EEV, 6 cylinder, 250 hp
- Cummins ISLe Euro 5/EEV, 6 cylinder (Hong Kong models)
- MAN D0836 Euro 5 (2009 to 2013)
- Cummins ISL9 EPA 2010 6 cylinder, 280 hp (North America, 2011 to present)
- Allison B400R
- Voith D854.5 4 speed
- Voith D864.5 4 speed (for Euro 5 ISLe)
- Voith D854.6 4 speed (for Euro 6)
- ZF 6AP1203B 6 speed (for Euro 5 to 6 ISBe)
- ZF 6AP1203B 6 speed (for Euro 5 ISLe)
- ZF 5HP502C 5 speed (for Euro 3 to 4)
- Kirkstall NDS80LF 8000 kg capacity, 55° lock angle (for Euro 3 to 5)
- ZF RL 75 7500 kg capacity, 55° lock angle (for Euro 6)
- Rear: ZF AV 132 13,000 kg capacity
- ZF 8098 integrally powered, variable ratio
- Air disc brakes with ABS
- City Sightseeing Toronto - Toronto, ON
- Cruise Victoria - Victoria, BC
- Lady Dive Tours - Ottawa, ON
- Les Tours du Vieux Québec - Québec, QC
- Arriva London - London
- Arriva Shires & Essex - Luton, Bedfordshire
- Bournemouth University (operated by Wilts & Dorset) - Bournemouth, Dorset
- Carters Coach Services - Capel St Mary, Suffolk
- First London - London
- Harford Park & Ride (operated by Konectbus) - Norwich, Norfolk
- Hedingham & District Omnibuses - Essex
- East London Bus Group - London
- Go-Ahead London/London General - London
- Metroline - London
- National Express West Midlands - West Midlands
- Stagecoach in Cambridge - Cambridge, Cambridgeshire
- Stagecoach in Cheltenham - Cheltenham, Gloucestershire
- Stagecoach in Devon - Devon
- First Devon & Cornwall - Devon and Cornwall
- Stagecoach London - London
- Stagecoach Manchester - Greater Manchester
- Stagecoach in The Fens - Huntingdonshire, Cambridgeshire
- Travel West Midlands - West Midlands
- Western Greyhound - Newquay, Cornwall
- Dublin Bus - Dublin, Lainster
- First Glasgow - Glasgow
- ↑ Euro 5 Enviro400, alexander-dennis.com, retrieved on 2009-09-11
- ↑ ADL gears up for export drive with diesel and hybrid models, alexander-dennis.com, retrieved on 2010-11-12
- ↑ The all-new Enviro400 – designed by the industry for the industry. Alexander Dennis. 01 May 2014. Press release. retrieved on 03 May 2014.
- ↑ Patent WO 2013156802 A1