Under Construction

Let’s look inside the Class 22 …


Flexible Gangway. Corridor Connection Control Cubicle. Fabricated part Water tank. Voith·N.B.L. LT306r hydraulic transmission Control Cubicle. Fabricated part Hydro Fan Motor Cooling Water Fan David Brown primary gearboxes Single reduction final drive Flexible Gangway. Corridor Connection Train Heating Boiler Engine NBL/MAN L12V 18/21BS Radiators Fuel Tank Main fuel Tank Air Compressor David Brown primary gearboxes Hydro Fan Pump Vacuum Exhauster Engine air duct Supercharger Napier Turbocharger MS200 Air Compressor Dynostarter Generator/ Starter Drivers Control Desk Drivers Seat Cardan Shafts (6 off ) Cardan Shafts (6 off ) Water Tank Filler

Use your mouse to select a number in order to go directly to the part, or simply scroll down.

No.1
Item Description : Engine   NBL/MAN L12V 18/21BS
Operation:  The power unit is 12 cylinder, V form with 6 cylinders per bank and operates on the 4 stroke cycle. Exhaust turbo charged using the pre-combustion chamber principle
Project 22 perspective: We own engine 220

 

Screenshot022

Back to top of page

No. 2
Item Description : Voith-N.B.L. LT 306r hydraulic transmission
Operation: 
Project 22 perspective:  The Voith LT306 still eludes us. We are on the hunt for this transmission. We are looking towards Italy and Germany as there are still a number of DB 200 diesel hydraulics around.

 

Screenshot023

Back to top of page

No. 3
Item Description: Cardan Shafts (6, Hardy-Spicer)
Operation: A cardan shaft is a mechanical component for transmitting torque and rotation, used to connect the transmission to the gearboxes and the engine to the transmission. This is employed when other components of a drive train cannot be connected directly because of distance or the need to allow for relative movement between them.
Project 22 perspective: Hardy-Spicer, the original producer of the Class 22 shafts, are still in business. We will have all our shafts built from new specifications to fit our locomotive.

 

IMG_0128

Cardan Shaft

Back to top of page

No. 4
Item Description: Primary Gearbox, David Brown double reduction final drive
Operation: The primary gear box is connected to the transmission via a cardan shaft. It is bogie mounted. The final drive is that part of a power transmission system having the function to change the direction of the power transmitted by the drive shaft through 90 degrees to the driving axles. At the same time it provides a fixed reduction between the speed of the drive shaft and the axle driving the wheels
Project 22 Perspective:

 

SGears

Back to top of page

No. 5
Item Description : Secondary Gearbox, single reduction final drive
Operation: David Brown primary gearboxes, single reduction final drive
Project 22 perspective: The secondary gear box is connected to the primary gearbox through cardan shafts. It is also a part of the bogie and connected to the leading wheel set

 

SGears

Back to top of page

No. 6
Item Description:  Supercharger. Napier Turbocharger MS200
Operation:  A compressor driven by the exhaust gasses used optimise the pressure and mass of the inlet air in the fuel air mixture to increase engine power
Project 22 perspective:  Attached to our engine – will probably need an overhaul

 

IMG_0237

 

Back to top of page

No. 7
Item Description:  Engine air duct. Air inlet duct from body side filters to turbocharger
Operation:  Ducts clean air via the filter system to the turbocharger inlet ducts.
Project 22 perspective:  Will need to be fabricated specially

 

Back to top of page

No. 8
Item Description: Dyno-starter. Generator/Starter
Operation: A dual-purpose electrical machine used to crank the engine during the start-up process, then switched by the control gear to act as a dynamo to charge the batteries and run electrical systems when driven by the engine.
Project 22 perspective:  No longer manufactured, an alternative will need to be sourced.

 

ECCtrain2

Back to top of page

No. 9
Item Description:  Hydro Fan Pump. Pump for Hydro-static fan drive
Operation: Provides a high-pressure oil supply to drive the cooling fan motor. In the Class 22’s this was a constant source of problems.
Project 22 perspective: Part of the cooling system.

 

Back to top of page

No. 10
Item Description: Hydro Fan Motor. Motor for Hydro-static fan drive
Operation:  Uses high-pressure oil from the pump to drive the engine room cooling fan, depending on the load.
Project 22 perspective: Part of the Cooler Group.

 

Back to top of page

No. 11
Item Description: Cooling Water Fan. Fan for the Cooler Group
Operation: Large diameter fan driven by the hydro-static pump to force cooling air through the radiators.
Project 22 perspective: Part of the Cooler Group.

 

Back to top of page

No. 12
Item Description: Control Cubicle. Fabricated part – contains BBC control gear
Operation: Contains all control systems for the operation of the locomotive.
Project 22 perspective: Compatible modern components are available.

 

Back to top of page

No. 13
Item Description: Control Cubicle. Fabricated part – contains BBC control gear
Operation: Contains all control systems for the operation of the locomotive.
Project 22 perspective: To be manufactured afresh using compatible modern components.

 

Back to top of page

No. 14
Item Description: Train Heating Boiler. Stone Vapor OK4610 or Clayton AO 1000
Operation: Burns fuel oil to provide steam at high pressure. Used to heat coaching stock.
Project 22 perspective: No plans to include one. Will depend on availability of secondhand item.

 

bioler

Back to top of page

No. 15
Item Description: Water tank. Water tanks supplying the Steam Heat Boiler
Operation: Provides boiler water for the steam heating boiler.
Project 22 perspective: Needed only if steam heat to be provided

 

Water tank website

Back to top of page

No. 16
Item Description: Water Tank Filler. Filler for Steam Heat Boiler water tanks
Operation: Provided to replenish the water used for steam heating of the stock, often via locomotive water columns.
Project 22 perspective: Required only if water tanks are to be provided.

 

Water filler hatch website

Back to top of page

No. 17
Item Description: Fuel Tank. Main Fuel Tank for engine and Steam Heat Boiler
Operation: Storage for diesel fuel, 450 gallons.
Project 22 perspective: Fabricated item.

Back to top of page

No. 18
Item Description: Drivers Control Desk
Operation: Contains all switches, warning lights, gauges and controls for the operation of the locomotive.
Project 22 perspective: Fabricated item.

 

Picture1

Back to top of page

No. 19
Item Description : Driver’s Seat. Widney seats – several types used
Operation: 
Project 22 perspective: Used on other locomotive types and should be available.

 

seats Class 22

Back to top of page

No. 20
Item Description: Assistant Drivers Seat. Widney seats – several types used
Operation: 
Project 22 perspective: As Drivers seat

 

seats Class 22

Back to top of page

No. 21
Item Description: Flexible Gangway Corridor Connection
Operation: Allows movement of staff between two or more locomotives coupled together. Little used in later years.
Project 22 perspective: Fabricated item, not needed for build.

 

6330 swindon 02-03-1971. norman preedy

Back to top of page

No. 22
Item Description: Air Compressor. Westinghouse CM38
Operation: Provides compressed air for use in control systems and locomotive braking systems.
Project 22 perspective: Alternatives can be used. (Picture shown is the Westinghouse CM38)

 

compressor

Back to top of page

No. 23
Item Description:  Vacuum Exhauster. Reavell FRU 5 1/4 x 10
Operation: Used to create vacuum for the train braking system
Project 22 perspective: Used in various locomotive types: alternatives can be used

 

P8040748_1

Back to top of page