C o m p r e s s i o n s y s t e m s

FLeXiBLe FUeL HeADer

This simple design just makes good sense and saves money. By providing easy access, our new flexible fuel header lets you maintain fuel valves, and even replace them, in a matter of minutes, rather than hours. As an added benefit, the system relieves much of the assembly stress from the gas injection valves.

Gas Engine CompressorsExciting New Ajax Engineering Evolutions

eLeCtroniC GoVerninG system

Ajax engineering comes through in another big way with our Integrated Governor Throttle Body, now standard equipment. The IGTB provides excellent speed stability and quick response to load changes. The governor measures engine speed with a magnetic pickup and automatically adjusts fuel gas header pressure as required to maintain desired speed. The IGTB offers the features of simplicity without the requirement for on-site tuning.

oXiDiZinG CAtALytiC ConVerter

Many have tried, but only Ajax delivers a highly successful, field-proven catalytic converter to meet the new environmental guidelines for two-stroke low-emission gas engines. Designed to alleviate the potential worries of oil contamination and pressure spikes, this new product improvement virtually eliminates CO and VOC emissions and greatly reduces formaldehyde emissions. Add this to our patented expansion chamber, and its possible to achieve any combination of these benefits, including reduced NOx and/or increased site horsepower ratings.

tUneD eXHAUst eXpAnsion CHAmBer

Because ever-tightening environmental requirements pose such difficult, constant challenges, our goal is to help you comply without giving up performance. Our patented exhaust expansion chamber provides perfect proof. Its ingenious design allows you to recover up to 50% BHP derating, reduce NOx by 60%, or both, depending on your needs. Even better, there are no moving parts, no computers and no air-fuel ratio controllers, and no maintenance is required.

LUBe system

For even better reliability, weve made a sophisticated divider block system standard issue for our power and compressor cylinders across the line. A solid-state flow monitor provides automatic low- and no-flow shutdown to prevent damage to the engine in the case of pump failure. With fewer moving parts, less tubing and only a few pumps required, the system is a model of user-friendly efficiency.

Ajax Integral Gas Engine - CompressorsStandard Features

Hydraulic Fuel injectionFor optimum fuel efficiency.

Babbitt sleeve and/or Double row tapered roller BearingsFor maximum horsepower load and application requirements.

power CylindersTwo-cycle, low-BMEP, chrome-plated with fewer parts for less maintenance. Port-scavenged, requires neither inlet nor exhaust valves.

Crosshead GuidesAbsorb thrust stresses and prevent contamination of crankcase lube oil.

splash Lubrication systemNo oil pump, filter or cooler required for main and connecting rod bearings. Sealed from combustion process.

reliable ignitionSolid-state, high-energy capacitor discharge ignition system.

efficient LubricationStandard divider block, force-fed lubrication system for power and compression cylinders.

Crankshaft and Connecting rodsClosed-die forged in precision dies.

FrameRibbed, cast-iron construction for durability.

Distant pieceAPI-Type II extra-length design for ease of packing maintenance.

High rod Load and Cylinder Working pressureFull-load operation through a variety of compression ratios up to 6:1 per stage.

Highly efficient Compressor CylindersLarge gas passages and valve flow areas for high efficiency. Bores range from 3 to 28 inches (7.62 to 71.1cm) diameter. Pressures to 5500 psig (379 BAR).

Low Valve VelocityLonger life, high performance and high efficiency. High-differential poppet valves standard.

Clearance / LoadingManual, wheelhand-type, variable volume clearance pocket with indicator allows cylinder unloading without de-pressurizing.

14

13

12

11

10

9

8

1

2

3

4

5

6

7

1

2

3

45

67

8

9

10

11

12

13

14

C o m p r e s s i o n s y s t e m s

Simplicity reigns supreme with Ajax integral technology.

And improvements are made with one very critical

parameter in mind never compromise the strength and

simplicity of the original design. That explains why our

integral engine-compressors simply last longer, cost

less to maintain and come standard with features that

meet all the BACT emissions requirements. They also con-

sistently maintain an impressive 98% or better availability.

For a life cycle that can easily span 50 years or more, all

thats required of you is an annual oil change and very few

special tools; as proof, our very first two DPC models,

built in 1958, are still running strong.

A j a x I n t e g r a l

Common crankshaft no coupling

Alignment not required

Lowest mechanical losses

Matched design

Smooth-running balance opposed design

H i g h - S p e e d S e p a r a b l e

Coupling required

Critical alignment with close tolerances

Higher mechanical losses

Potential engine / compressor mismatch

Higher vibration

C O N S I D E R T H E D I F F E R E N C E S

Time (Years)

1500

1000

500

total Cost of ownership

Total C

ost (Th

ou

sand

s)

0 1 2 3 4 5 6 7 8 9 10

Ajax High-speed separable

3500

3000

2500

2000

5000

4500

4000

Comparison of a DPC-2802LE Vs. CAT 3408 - Ariel JGA HSSP to the following factors:

1) Initial cost 2) Annual maintenance cost and downtime 3) Natural gas price at $10 MMBtu

Ajax Integral Versus High-speed

Ajax integral engine-compressors are available from 147 to 845 Hp (110-630 kw) and are ideally suited for:

Gas gathering

Gas transmission

Storage

Gas re-injection

Gas processing

Propane processing

Helium processing

Coal Bed Methane

processing

A J A X A P P L I C A T I O N S

Less is better when it comes to replace-ment and maintenance of engine parts. With an AJAX two-cycle engine, you dont need:

Cam, camshafts

and bearings

Valve stems and

valve stem bushings

Valve covers

and gaskets

Push rods

Tappets

Seats

Timing gears

Valve springs

Rocker arms

Intake and

exhaust valves

Compression stroke

scavenging

power stroke

T W O - C Y C L E S I M P L I C I T Y

The Ajax Competitive AdvantageBetter proDUCts. After nearly 50 years of reliable, efficient, long-lasting

service, Ajax integral engine-compressors continue to earn their

distinguished reputation for being as close to worry-free as any

compressor product in the world. Our product line, from 147 to 845

horsepower (110-630 kw), and a cylinder line-up capable of handling

a wide range of pressures, from vacuum to 5500 psi (379 BAR), offers

up to six ratios capability and the lowest BHP per million flows for a

wider range of applications, including sour gas. Thanks to its unique

two-stroke design, the Ajax integral engine-compressor virtually eliminates

problems typically caused by the presence of sour gas, handling

H2S content up to 3.0 mol%.

GreAter eXpertise. As an Ajax customer, youre working with pros who

are not only the best in the business, but sincerely devoted to your success.

Our manufacturing team averages 17 years of experience and our Ajax

technical support team, 20. Out of our facility in Oklahoma City, we offer a

complete package designed to all of our customer specifications, including

European directives.

GUArAnteeD QUALity. The smart choice for gas compression service is

Ajax, where top products and services are backed by one of the strongest war-

ranty programs in the industry.

pUt tHe eDGe to WorK For yoU. Top-quality OEM products. Expert advice.

Proven experience. Superior technology. Theyre all yours the minute you

choose to put Ajax on your team. If the idea of simplifying your operation

and obtaining greater efficiency sounds good to you, give us a call and let us

show you how to get the edge up on your competition.