Tigercat FPT Solution NOx NH3 Temperature Sensors AOC/CUC SCR DEF Injector DOC Humidity/Temperature Sensor Temperature Sensor Air Filter Coolant Lines NOx Exhaust Flap Turbo Intake Air DEF Line Coolant Control Valve Supply Module and Filter Header Assembly with Level and Temperature Sensor DEF Tank Brand C & D Solution FTP Industrial Tier 4 NOx Mixer DOC Fixed Fresh Air VGT Dosing Injector DPF EGR Valve Intake Throttle Valve Supply Module and Filter Air-to-air Cooler emission level requirements without the need for a nitrogen and carbon dioxide. higher capacity cooling system, an intake throttle body For the operator, other than refilling the diesel exhaust or a diesel particulate filter. fluid (DEF) tank, no action is required for the SCR system lower long-term maintenance costs. EGR Cooler Compressed Air from Turbochargers components of the exhaust gas stream into water, In addition, the engine series offers proven reliability and Header Assembly with Level and Temperature Sensor ECU Tigercat FPT engines meet the stringent Tier 4 variable geometry turbocharger, an EGR system, a Coolant Lines NOx DEF Line Air Filter P Sensor Exhaust SCR Temperature Sensors by DEF Injector Temperature Sensors AOC/CUC The Truth about Tier 4f Technology Most of the new emission equipment is found in the exhaust or after-treatment system. The key is the selective catalyst reduction (SCR) which converts the harmful to function. The biggest benefit for Tigercat machine owners is that the FPT engine series is fully supported by Tigercat, including all parts, service, warranty and technical support. DEF Tank PowerTech PSS Final Tier 4 Technology 519.753.2000 [email protected] www.tigercat.com www.facebook.com/Tigercat 0314-1 TIGERCATPOWER. TIGERCATSUPPORT. Brand C & D TURBOCHARGER • Besides adding the cost and complexity of a DEF Injector second turbocharger, the VGT is more costly and complex, with more moving parts, than a fixed geometry turbocharger. Temperature Sensor • The DPF requires additional sensors to measure pressure drop across the unit to control regeneration. • The VGT increases the envelope of the engine. • The VGT requires a control system and additional sensors to control operation of the vanes. VGT Dosing Injector Header Assembly with Level and Air Temperature Sensor NOx NH3 P Sensor DPF EGR Valve Intake Throttle Valve Turbo Tank(EGR) RECI RCULATIDEF ON • EGR works by cooling and recirculating exhaust gas back to the combustion chamber to reduce oxygen content in the combustion process, lowering in-cylinder combustion temperatures and creating less mono-nitrogen oxides (NOx) but more particulate matter. This increase in PM leads to the need for a diesel particulate filter (DPF). VGT Dosing Injector • EGR results in shorter maintenance intervals due P Sensor NOx NH Temperature Sensors NOx to more contamination of the engine oil as exhaust Fixedthe airDOC Fresh Air is passed back into intake. DPF FTP Industrial TierAOC/CUC 4 SCR NOx Exhaust DEF Line Air Filter ECU r-to-air Cooler EGR Cooler Temperature Sensors Compressed Air from Turbochargers AOC/CUC DEF Injector Mixer DEF Tank SCR Temperature Sensors P Sensor PowerTech PSS Final Tier 4 Technology NOx DOC Fixed DPF DEF Tank VGT 3 Dosing Injector EGR Valve Intake Throttle Valve Header Assembly with Level and Temperature Sensor DEF Injector EGR Cooler DOC Header Assembly with Level and Temperature Sensor Header Assembly with Level and Temperature Sensor ECU Module and Filter Coolant Fresh Air EGR Valve Intake Throttle Valve EGR Valve Intake Throttle Valve EGR Cooler • Competitive machines are using SCR technology and will be required to carry DEF. Filter Temperature Sensor VGT DPF SELEC T IV E C ATA LY T IC R ED UC T IO N (S CR) Control • The SCR unit houses both the catalyst and clean Valve up catalyst (CUC). Exhaust gas mixes with diesel • Requires the addition EGR cooler and EGR Compressedof Air the from Turbochargers Supply exhaust fluid (DEF) as it enters the SCR. The DEF DEF Tank Module valve. This increases the engine envelope. DEF Injector breaks down into ammonia which reacts with the and Filter NOx Temperature Sensors NOx to form nitrogen and water vapour. TheHeader unit Assembly Mixer • The EGR valve requires ongoing maintenance. with Level and AOC/CUC SCR PowerTech PSS Final Tier 4 Technology requires no maintenance or regeneration.Air Dosing Injector DOC Fixed • SCR technology, coupled with the high efficiency DEF Line engine, meets Tier 4 requirements. Supply EGRhigher Cooler • EGR is required, leading to radiator cooling loads. A larger cooling package and more air flow ECU is required. P Sensor NOx Intake Air Temperature Sensors • The Tigercat FPT engine is more fuel efficient thanAir Filter an EGR equipped engine. Header Assembly with Level and Temperature Sensor SCR Temperature Sensors Humidity/Temperature Sensor Temperature Sensor ECU Supply Module and Filter A MMO N IAExhaust O Flap X ID AT IO N C ATA LY ST / C LEA N UP C ATALY S T ( AO C/CU C) NOx Supply Turbo Coolant Lines FTP Industrial Tier 4 NOx Mixer AOC/CUC Temperature Sensor Exhaust Flap Air-to-air Cooler • EGR is not required. DOC Humidity/Temperature Sensor Filter E X H AUST GAS • DOC is a simple technology that passively oxidizes Mixer Temperature NOxSensors to increase the efficiency of the selective catalytic reduction (SCR). AOC/CUC SCR Air DEFFilter Injector NOx Fresh Air Coolant Lines Fixed Fresh Air Supply DOC Module and Filter D IESEL O X ID AT IO N C ATA LY ST (D O C) Coolant Lines Air Filter Temperature Sensors DEF Injector Temperature Sensors DEF Injector DEF Line Coolant Control Valve NOx Exhaust • The VGT is used in part to control the amount of exhaust gas directed to the exhaust gas DEF The Line vanes can be recirculation (EGR) cooler. NOx Temperature Sensors clogged with particulate matter (PM) over time, a greater concern in engines thatAOC/CUC use EGR.SCR Intake Air • The DPF increases backpressure to the engine, increasing fuel consumption. Coolant Lines Turbo r Coolant Lines NOx Exhaust Flap Exhaust Humidity/Temperature Sensor • The Tigercat FPT engine is more fuel efficient than a DPF equipped engine. • The DPF requires continuous regeneration, both active and passive, resulting in decreased fuel economy. DEF Line DOC • Required to control PM created due to EGR. The filters can become clogged with ash. Coolant Lines • No complex variable geometry turbocharger. • Simple and reliable with few moving parts. • Tigercat is able to meet Tier 4 emissions without the DPF, due to the efficiency of the engine and lack of EGR. • Two in-series turbochargers, one variable geometry (VGT) and one fixed geometry. Exhaust • One fixed geometry mechanically wastegated AOC/CUC SCR turbocharger. D IESEL PA R T IC ULAT E FILT ER (D PF) DEF Line Temperature Sensors Brand C & D Air-to-air Cooler NOx NH3 Tigercat FPT Air-to-air Cooler Tigercat FPT Module • Theand AOC/CUC is used to neutralize excess Filter Intake Air ammonia from DEF injection. Compressed Air from Turbochargers DEF Tank DEF Line PowerTech PSS Final Tier 4 Technology
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