Tier 4 Final Or Tier 2 Dgb: We’Ve Got You Covered

Tier 4 Final Or Tier 2 Dgb: We’Ve Got You Covered

COMPARE YOUR OPTIONS — BOTH DELIVER BIG FUEL SAVINGS AND ROBUST DIESEL PERFORMANCE

 

Considering the switch to Dynamic Gas Blending™ engines on your frac trailers? That’s smart thinking. DGB allows your engines to burn natural gas — including field gas — as well as diesel. It’s a proven way to reduce fuel costs significantly without sacrificing the diesel engine performance you’ve come to rely on. And unlike other options on the market, DGB gives you the flexibility to run your engines on 100% diesel when gas isn’t available.

Whether you’re looking to start fresh with Tier 4 Final DGB engines or upgrade your existing Tier 2 engines to DGB, we’ve got you covered. In fact, we’re the only engine manufacturer with dual fuel solutions that meet both sets of emission standards. There are some key differences between the two offerings, though, so take a look at the details below to determine which option is best for your frac operation.

 

 

Cat 3512E DGB Engine –
U.S. EPA Tier 4 Final Certified*

Cat® 3512C DGB Engine –
Meets Tier 2 Levels

Installation

Turnkey, factory-installed solution that includes integrated aftertreatment support – no downtime

Upgrade kits available from your local Cat dealer — allow time for installation

Base Engine

High Pressure Common Rail platform with Exhaust Gas Recirculation – same as Tier 4 Final diesel engine

MEUI-A (Mechanically Actuated Electronically Controlled) platform

Maximum Diesel Displacement

85%

65%

Fuel Range

850-1250 LHV

850-1250 LHV

Combustion Control

Achieved via multiple technologies that combine to maintain emission levels and keep displacement high:

  • In-Cylinder Pressure Sensing (ICPS), which monitors combustion of each cylinder for more precise control
  • Compressor bypass control
  • SOGAVs (gas metering devices)
  • Control software
  • Oxidation catalyst and compression ratio

Achieved via exhaust temperature and knock sensors

Gas System

Individual cylinder gas metering system

Fumigated gas system

Filtration

Integrated gaseous fuel filtration with pressure monitoring for maintenance notification

Customer-supplied

 

Which Solution Is Right for You?

It depends on your priorities. If you’re building a new fleet, or have the resources for a complete repower, 3512E DGB engines deliver the best overall performance, savings and environmental footprint. If you’re looking for a cost-effective way to upgrade your existing fleet, 3512C DGB kits may be the answer.

Either way, the ability to burn field gas as well as diesel means you’ll likely see big savings on your fuel bill. Your local Cat® dealer can help you weigh your choices and put the right DGB solution to work on your frac trailers.

* U.S. EPA Tier 4 Final Nonroad, 49-State

 

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Need help determining which product meets your needs? Your Cat® dealer can help you find the right model and ensure that your equipment is operating correctly to help you get the job done.

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