Volvo Penta TWD1644GE and TWD1645GE are high power density engines based on the Heavy Duty Engine Platform 16L. The engines do meet exhaust emission regulation UNECE Reg 96 stage II level. The latest hardware and software technology have been introduced for those engines in order to secure high power output, reliability and durability.
PRODUCT SPECIFICATION
TWD1644GE | TWD1645GE | |
Power Output at 1500rpm | 717KVA Standby | 770KVA Standby |
Power Output at 1800rpm | 750KVA Standby | 800KVA Standby |
Product Features:
High power density
Fulfill UNECE Reg96 stage II exhaust emission level
Certified for:
USA: EPA Tier 2 Stationary Emergency
China: Stage III Mobile
Dual Speed 1500 & 1800 rpm
Latest Hardware and Software technology
EMS 2.3 engine control system
Heavy duty steel piston
Dual stage turbo
Electrohydraulic controlled turbo bypass valve
2 circuit cooling package
Water/air charged air cooling
Heavy duty wiring harness
Heavy duty frame
Installation point of view
Very compact engine
Most competitors are delivering this power with engines having more than 20L in displacement
Smaller engine → smaller canopy → cost saving for OEMs
Minimal changes compared to TWD1643GE
Limited installation modification for OEMs
Performance
Low fuel consumption
Positive power tolerance
Improved hardware and software
Flexibility for OEMs
Can be operated @ 50 and 60 Hz markets
BASE ENGINE IMPROVEMENTS
DURING 2015 & 2016
Exhaust valve spring
Inlet valve stem seals
Fan hub bearings
Fuel feed pump
2 circuits cooling system
Cylinder liner sealing
IMPROVEMENTS ON TWD1644GE AND TWD1645GE
HARDWARE
Heavy duty steel piston
Heavy Duty Wiring harness
Electrohydraulic controlled turbo bypass valve
Heavy duty frame
Short oil filter
Removed piston cooling oil pressure sensor
Removed thermostat for Charge air cooling circuit – will be available for cold markets
SOFTWARE
EMS 2.3 engine control system
INSTALLATION FOOTPRINT COMPARED TO TWD1643GE
Front engine bracket reinforced and adopted to heavy duty frame.
Front footprint raised 138mm. Holes remains in position regarding width and length.
Crankcase ventilation, semi-open.
COMPARISON @ 770-800 kVA Standby
Displacement (L) | Standby kVA @50Hz | Standby kVA | |
Volvo Penta | 16.1 | 770 | 800 |
Scania | 16.4 | 770 | 795 |
Perkins | 23 | 820 | 800 |
Cummins | 23.1 | 825 | 810 |
MTU | 26.7 | 715-860 | 710-800 |
Doosan | 21.9 | 820 | 820 |
COMPARISON with Scania
Volvo Penta | Scania | |
Engine | TWD1645GE | DC1672 |
Power Output @ 1500rpm | 770KVA Standby | 770KVA Standby |
Power Output @ 1800rpm | 800KVA Standby | 795KVA Standby |
Displacement | 16.1 L | 16.4 L |
Emission fullfilment | UNECE Stage II |
RATING DEFINITION
Volvo Penta | Scania | |
Prime | Ratings corresponding to ISO Standard Power for continuous operation. This relates to the supplying of electrical power at variable load with 70% load factor for an unlimited number of hours as opposed to commercially purchased power. A 10% overload capability is available with this rating. | For continous operation at varying load. Max mean load factor of 70% of rated power over 24h of operation. 1 hour/12 hours period of accumulated peak overload to 110%. |
Standby | The average power output during a 24h period shall not exceed 80%. Engine operation＜500hrs per yea whereof continous operation＜300hrs. | Max mean load factor of 70% of rated power over 24h of operation. Not for applications intended for more than 200h/year. |
To be updated based on testing results, DEC 2016. | ||
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