Compressors for Railway Air-ConditioningA closer look at the success story of Bock inglobal Railway applications.

Railway Edition

Worldwide presence and service

Customer Information Bock Kältemaschinen GmbH

Inside.BockCompany in brief

Railway success stories

New Rail HVAC product launches

Udo KlaußnerHeinrich ReußWolfgang Etter

We are happy to present you right on time before the

Innotrans 2010 - the leading business meeting point for

transport technology - a special edition of our customer

magazine Inside.Bock.

On the following pages you can find some of our company's

success stories in the field of railway air-conditioning.

With our second participation at the Innotrans after 2008 we

want to expand our success in the railway field with new and

innovative products specially developed for railway

demands.

The future of mobility starts on page 12 of this magazine. You

can find some compressor variations for the use with R407C

in regions with high heat load or our 2-pole compressors

manufactured for maximum performance, that are now

available for 60 Hz operation because of the unique valve

plate system.

Industry-oriented solutions such as those compressors are

possible because more than 300 employees worldwide are

passionate to produce the right compressor for every

application.

With this common goal in mind, we are already looking

forward to meeting you at the next trade fair.

Sincerely,

Bock Management:

Udo Klaußner, Wolfgang Etter, Heinrich Reuß

Dear business partners,

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Bock‘s sucess story is based on 75 years of experience with

refrigeration and air-conditioning compressors. Bock is a family

owned company in Germany and distributed in more than 60

countries.

The company is recognized worldwide for its high quality and

reliable products. Air-conditioning compressors of Bock provide

sustainable comfort for passengers in busses and trains around

the world.

Next to the various specific areas such as marine environment,

explosive industrial environment and the special field of CO 2

transcritical refrigeration, Bock is ensuring customized solutions

and enhanced services to the Rail environment since 1968.

While the first railway applications of Bock technology at

Deutsche Bahn were used for refrigeration purposes in dining-

cars, customized solutions of the last 20 years are dedicated

purely to the HVAC purpose.

Rail HVAC is an area where Bock performs research and

development activities and follows latest rail HVAC market

trends. New product developments of the last years bring to the

market lightweight, high capacity and environmentally friendly

solutions tailored to particular customer projects. Bock today

can truly be called one of the world leaders in compressor

technology development.

Profile:

- Company founded in 1932

- Turnover: Over 50 Mio. €/year

- ISO 9001 certified since 1994

- More than 300 employees

- More than 60 distribution partners worldwide

- Several subsidiary companies and Joint-Ventures worldwide

Company philosophy and commitments:

- Bock is your problem solver

- We are always at your side

- Implementation of individual customer requests

- Continuous spare parts logistics

- Fast technical support

- Short delivery times3

Bock headquarters in Frickenhausen. Heart of the company with four

production sites and worldwide subsidiaries.

Bock makes the difference. Together, we are looking for the perfect

solution for your demands. Uncomplicated. Flexible. Individual.

Know-how from the expert. Trainings around the compressor –

directly at your company or in the Bock training centre.

Bock Kältemaschinen GmbH in brief

The company Bock - more than compressors.

Experiences from various working environments of Bock

compressors allowed to develop a unique technology, which

is able to provide errorless operation in rail environments for

both Electrical as well as Diesel driven train sets.

At the same time each component of Bock compressors is

accessible and serviceable.

4

Inside.Bock. – or where you can find us in a train

Always the right solution.

EMUElectric Multiple Unit

Bock HG-Series

Bock FK-Series

Such a combination of unique, tested design, and complete

accessibility of all the parts gives the ideal product required

for railway air conditioning.

Bock is on your side for the whole lifetime of the train!

Diesel Multiple Unit

DMU

Bock is inside the following rail-vehicles:

- EMU/DMU regional HVAC systems

- High speed train HVAC systems

- Long distance train HVAC systems

- Commuter train HVAC systems

- Light Rail Vehicles - Metro/Tram HVAC systems

- Locomotives/Drivers Cab HVAC systems

Russia - Moscow Line China - Hong Kong Metro

Switzerland - St. Gallen

India - Delhi Metro

Germany - Berlin USA - Oceanside

Austria - Linz Turkey - Eskisehir Norway - Rauma Line

Netherlands - Arnheim LineDenmark - Copenhagen Spain - Mallorca Metro

Compressors to trust.Proven. Thousandfold by the best names.

5

NEWSBock References in the field of DMU

Diesel driven units - whereelectric power supply doesn‘t exist…

In the early 90's Bock became a solution provider for Diesel

driven train sets operating in the different areas and countries

where electric power supply was not available.

Open type compressors of the FK range found to be the best

solution empowered by well known quality and reliability from

the field of bus HVAC applications. Rail operating conditions,

normally stated to be much more demanding compared to the

automotive ones, didn‘t bring any obstacles for Bock technology

and the FK range started to become the favourite product for

railway HVAC applications.

Railway international standards of reliability and durability finally

lost the battle against Bock‘s common sense for the detail and

quality, which, by the way, always differentiates first class

products from the others.

Since that time Bock has been sucessfully cooperating with

many HVAC manufacturers supplying DMU markets such as

Sütrak Carrier, Behr, Konvekta, Rexxon, Faiveley or Webasto.

Bock is proud to deliver real value to rail OEMs. Namely to

Bomdardier, Alstom, Siemens and Stadler. These customers

operate their DMUs under the brand names Bombardier Talent,

Alstom Coradia Lint, Siemens Desiro or Stadler Regio-Shuttle. All

of them having “Inside.Bock“.

All the trains are in full operation nowadays and in case of new

vehicle demand on the market, Bock is providing proved

solutions like they did in the past when all mentioned projects

started.

Bock is always at your side.

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Bombardier Talent Classic GermanyPhoto © Bombardier Transportation GmbH

Siemens Desiro BulgarienPhoto © Siemens AG

Alstom Coradia LINT Photo © Alstom 2010/B. Rosenthal

Regio-Shuttle RS1 Agilis Photo © Stadler Rail AG

Bock is continuously performing customizations and working

on new product developments to respond to latest markets

trends. Today, the company can offer rail customers great

products tailored specially for low weight and high

performance requirements.

In the last years, we developed special aluminium semi-

hermetic compressors where weight reduction, compared to

the standard product range, is reaching tremendous values

of 35%. To give you a particular example: Imagine a typical

metro vehicle of 4 saloon cars, each having one HVAC unit

with split system. This amounts to either 1200 kg using the

conventional design of compressors, or 464 kg when using

new state of the art Bock technology combining aluminium

design and the newest 2-pole motors. Possible reduction of

the weight load of compressors is 61% for one vehicle,

which brings a remarkable result energy wise, especially

when you consider the whole fleet of vehicles. Plus there will

be certainly also other positive aspects related to the design

needs of HVAC units and vehicle roofs.

Since many years Bock compressors are working in the Delhi

Metro in India. Furthermore, Bock is proud supplier of the

Hong Kong Metro and various other metros.

7

City applications – lighter is better, or when innovations matter…

Bock References in the field of Metros

Bombardier FLEXITY Swift FrankfurtPhoto © Bombardier Transportation GmbH

Bombardier DT5Photo © ALSTOM Deutschland AG

Solaris TraminoPhoto © Solaris Bus & Coach S.A.

Variobahn GrazPhoto © Stadler Rail AG

NEWSBock Compressors in Russia's fastest train

Reliable even in the Siberian WinterIn April 2006 and May 2006, Siemens and Russian Railways

RZD signed contracts for the development, construction and

service of high-speed trains for 30 years. The project

encompasses the delivery of eight high-speed trains. Those

trains are models whose components and systems have to

be adapted to the special climatic requirements as well as

the standards of the Russian Federation.

The ten-car trains will operate on all high-speed routes in the

Russian Federation starting with Moscow – St. Petersburg.

Based on state-of-the-art high-speed technology the trains

are characterized by an attractive design in the Russian

national colours.

Because of the high demands on the air-conditioning that is

exposed to temperatures up to -50°C, the application of

high-quality components was without question.

For the compressors, the heart of modern air-conditioning

and refrigeration systems, semi-hermetic compressors by

Bock were chosen. “We deliver high-end compressors that

are produced at our German headquarters. For a maximum

safety, all compressors are equipped with reliable oil pump

lubrication.

Even for the most extreme operating conditions of -50°C and

up to +54°C ambient temperature, a safe operation is

guaranteed”, says Marcus Reuß, Bock Key Account Manager

Railway Applications. The compressors have an established

design and more than 10.000 compressors of this size are

already used worldwide.

“As a medium-sized enterprise we are able to respond to our

customers wishes, especially when it comes to smaller order

quantities. A fact that has proven to be an advantage, such as

in the case of the compressors for the SIEMENS VELARO®

RUS high-speed train” says Marcus Reuß.

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Since the HG34P followed in the footsteps of

the HG3 in 2003, it developed into a top seller

of the Bock product range and is now used in

refrigerating and air-conditioning systems

around the world.

Apart from its application in trains, the

HG34P also ensures comfortable air-

conditioning in trolley- and hybrid buses.

The Compressor - Bock HG34P

Velaro RUSPhoto © Siemens AG

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Compressor solutions for mobile applications

Smaller, lighter, stronger -Bock Aluminium CompressorsModern railway air-conditioning systems have high

demands on the different components of a system. Based on

those customer demands, Bock has developed special

aluminium compressors for mobile use.

The demands in the railway area that led to this development

can be roughly divided into four parts:

- Compact dimensions

- Lightweight Construction

- Sustainability & environmental protection

- Maximum efficiency

Bock responded to all those demands and developed its

semi-hermetic aluminium compressors HG22P and HG34P.

Compressors that were developed together with system

manufacturers and are already used in many trains.

For example in the new railway generation of the Scottish

Railway – First ScotRail. First ScotRail is responsible for

nearly all the rail traffic in Scotland. In 2010 First ScotRail

expanded its fleet by 38 environmental friendly trains of the

type “Class 380” with about 9.000 air-conditioned seats.

The trains of the model Desiro UK are delivered by the

Siemens railway technology branch. The trains are

manufactured in Krefeld-Uerdingen, Germany. The contract

with Siemens that was already signed in July 2008 has a

volume of more than 300 mio. Euro and also covers

maintenance and spare-part service.

The fact that Siemens chose the semi-hermetic Aluminium

compressor Bock HGX34P/380-4SA is a proof to Bock that it

was the right decision to focus consequently on customer

demands in this area.

In general one can say that the growing specific

requirements of the different refrigeration and air-

conditioning applications present new challenges for the

compressor. At Bock this challenge is seen as a chance to

further establish as a specialist for radial piston compressors

in various industries.

The Compressors - Bock HG34P in aluminium design

The compressor HG34P as well as its

smaller brother HG22P in aluminium

design was developed especially for the

demands in mobile areas of application.

Because of its aluminium-lightweight

construction, it has about 40% less weight

than comparable compressors.

Since its presentation at the Innotrans

2008 in Berlin, those compressors are met

with great interest and are already used in

various applications.

ScotRail Class 380Photo © Siemens AG

NEWSBock compressors in the trams of Germany‘s capital

Berlin's trams equipped with Bock CompressorsAs part of the modernisation of their tram fleet, Berlin's

transport services (BVG) placed an order for the production of

100 low-floor vehicles of the model FLEXITY Berlin with

Bombardier. Initially, four pre-series vehicles in different

variations are delivered. After a test and pilot phase, 206

additional trams can be delivered.

For the compressors, the heart of modern air-conditioning

and refrigeration systems, the manufacturer Liebherr-

Transportation Systems chose once again semi-hermetic

compressors by Bock Kältemaschinen GmbH.

“The project places high demands on Bock as the

manufacturer. They were searching for a compressor with

compact dimensions and minimal weight” says Marcus

Reuß, Bock Key Account Manager Railway Applications.

To meet those demands, Bock used the long experiences in

the manufacturing of open aluminium lightweight

compressors.

With those compressors Bock sets the benchmark in bus air-

conditioning worldwide. With the help of this know-how the

company developed semi-hermetic compressors in

aluminium design especially for mobile applications such as

those modern rail vehicles.

“With this lightweight aluminium type we could fulfil the high

demands of the train manufacturer for the Berlin railway and

we can see great potential for this product in various other

rail-projects as well” concludes Marcus Reuß.

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The Compressors - Bock HG34P in aluminium design

The compressor HG34P as well as its

smaller brother HG22P in aluminium

design was developed especially for the

demands in mobile areas of application.

Because of its aluminium-lightweight

construction, it has about 40% less weight

than comparable compressors.

Since its presentation at the Innotrans

2008 in Berlin, those compressors are met

with great interest and are already used in

various applications.

Bombardier FLEXITY BerlinPhoto © Bombardier Transportation GmbH

Nowadays a topic that is gaining in importance all over the

world is the use of environmentally friendly refrigerants.

Many HVAC companies have R&D projects running for the

application of CO as refrigerant in the mobile area. 2

bus or rail applications and are

ready to meet these latest worldwide challenges.

However, matter of fact is that the use of CO in passenger 2

transport still remains a question mark. The overall impact in

this field would be significant and would mean extensive

changes in many related areas as well.

The demand for environmentally friendly refrigerants is

growing and other refrigerants besides CO are considered 2

as well. The use of those alternative refrigerants would be a

smaller step compared to the use of CO , but it seems to be a 2

probable next step coming in the near future.

Nevertheless Bock can provide components to build

prototypes of HVACs and allow OEMs in the HVAC area to

perform research and development activities in the field of

CO as well as in any other refrigerant fields.2

You can find more details about CO compressors today 2

available at www.bock.de in the section Air-conditioning/

Rail Air-conditioning / Compressors / Compressors

(transcritical)

Bock

compressors can be used for

CO2

NEWS

Ready for the futureBock compressor solutions for the use with the natural refrigerant CO2

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The CO2

Radial piston compressor RKX

Compressors of the RKX-Series are 6-cylinder

radial piston compressors, partially suction

gas-cooled, that are available in two power 3stages with 2,7 m /h (50Hz) with 4-pole drive

1 3motor (1.450 /min) as well as 5,4m /h (50Hz) 1with 2-pole drive motor (2900 /min).

This compressor was developed in

cooperation with the company Obrist

Engineering GmbH, that is also involved in

the development of CO compressors for 2

many years and has various patents in this

area.

Bock RKX Compressor in a

Konvekta Air-conditioning system at the Innotrans 2008

NEWSCustomer oriented solutions - New Bock Products 2010

New product launchesfor HVAC Rail.

Bock offers its compressor HG34P in a version for 50 Hz with

2-pole drive motor, double rotation speed, and corresponding

higher capacity already for some time. At this year's

Innotrans, Bock now presents this compressor model for 50

Hz as well as 60 Hz.

This additional increase of the maximum possible

compressor capacity is achieved by the application of a

special valve plate system. The so called Bock K-valve plate

that was developed by Bock especially for mobile air-

conditioning applications is already in use in thousands of

applications and setting the worldwide benchmark for

quality and reliability.

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60 Hz now available for 2-pole compressors

R407C up to 35 barnow available for countries with high ambient temperatures

New: Bock HGX34P in 2-pole design for 60 Hz

New: HG34P as R407C version for high pressures of up to 35 bar

The Bock K-Valve plate with ring

fins for higher loads.

By comparison – standard valve

plates with finger reed valve

Greater possibilities: The extension of the high pressure to 35 bar makes

condensing temperatures up to 70°C possible

New!

To ensure the use of the refrigerant R407C in countries with

high ambient temperatures also when condensation

temperaturef up to 70°C are required, Bock now offers a

special compressor type for R407C at a permitted high

pressure of 35 bar.

For more information please have a look at our product

information.

On the basis of the established Pluscom series, Bock

developed two special versions for mobile applications, such

as railway air-conditioning.

With the two models HG22P and HG34P in all-aluminium

lightweight construction, Bock offers the perfect solution for

all applications where the weight of the compressor is

important. No matter if it's about railway-, bus- or mobile air-

conditioning – those 40% lighter compressors (compared to

standard compressors) offer new possibilities to system

manufacturers.

Additionally, those compressors are available with a terminal

box in a reduced height and therefore even more compact

than the standard version. For especially capacity-intensive

applications, such as mobile air-conditioning, Bock offers the

Pluscom Model HG34P in 2-pole version.

Powerful lightweights – solutions for mobile applications

Bock compressor solutions for mobile refrigeration and air-conditioning

Overview aluminium compressors32 model sizes with 10 capacity stages from 11,1 - 66,1m /h (50 Hz)

The compressor HG22P in aluminium design

13

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The 2-pole drive motor ensures a rotation speed of 2.900

rpm (compared to 4-pole 1.450 rpm) and therefore the

highest refrigerating capacity that has been reached in this

size.

The HG34P in 2-pole version is available in cast iron as well

as in the aluminium lightweight construction and reduced

height.

All information about those compressors is available in our

catalogue for mobile applications and online at

www.bock.de

The compressor HG34P 2-pole version

NEWSIndustry-specific selection software by Bock

Get there faster - with the Bock VAP for mobile applications

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Bock already offers for some years a compressor-selection

software that helps you to find the right compressor for your

system by entering the corresponding technical

requirements.

Since the selection software included the whole Bock

compressor range for stationary as well as mobile

applications until now, the software did not take railway

specific characteristics into consideration. Starting in

September 2010, Bock offers a special railway version of the

VAP compressor selection software that will make it much

easier, to find the right compressor.

Another highlight of the new VAP for mobile applications

compared to other selection programs is the fact that it is an

online software that works without an installation on the

computer. All you need is an internet connection.

http://vap.bock.de/mobileapplication

Comfortable - The most suitable compressors for railway HVAC are preselected

New: A railway version of the VAP compressor selection software

With our headquarters in Frickenhausen close to Stuttgart,

production sites in Czech, India and China as well as

numerous other subsidiaries we face up to the international

competition.

Heart of the company is and will remain Frickenhausen

where new compressors are developed. Here we set quality

standards that are followed on all location Bock produces.

No matter where a compressor comes into the world.

It is always a Bock.

With our subsidiaries, distributors and specialists, we are

represented worldwide. With great ambitions we have

worked on the internationalization in the last couple of years.

With own production sites, distribution companies, and

regional offices. We embody the lean, powerful, flexible

company Bock everywhere.

We are still not finished.

At your side. Our global network.

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Imprint

PublisherBock Kältemaschinen GmbH, Benstraße 7, 72636 Frickenhausen -

Germany, Phone: +49 70 22 / 94 54 159

PhotosArchive Bock Kältemaschinen GmbH, others as named

CopyrightThe articles in this magazine are protected by copyright all

pictures. All photos have been provided by customers and

suppliers or are published with their consent. Any kind of

reproduction of articles and photos, including extracts, reserved.

For further information call us +49 70 22 / 94 54 0

or visit us online at www.bock.de

To reduce the energy consumption of vehicles in the future, they have to become lighter. As an answer to this challenge, Bock developed semi-hermetic aluminium-compressors that are not only 40% lighter.

They are also available in a high-performance version with double refrigeration capacity and same dimensions.

Bock. More than a compressor.

More than a lightweight...

Bock Compressors for Railway Air-Conditioning