2002-04-16

New Volvo Penta D5/D7: Reliable engines for work boats



by Corporate Communication

Volvo Penta continues to broaden its engine program for marine professional applications. The latest additions are the D5 and D7, a series of five- and seven-liter marine diesels for heavy and medium-heavy commercial operation and marine auxiliary systems. The new engines involved a substantial expansion of Volvo Penta’s customer offerings for various types of smaller workboats.

The D5/D7 is a wholly new series of reliable marine diesel engines from Volvo Penta. The engines are finely tuned, with comparatively low RPMs, which, in combination with high torque, make them suitable for displacement and semi-displacement workboats. Each engine also has a number of power outlets for various applications, and is type-approved by the leading international classing societies. D5 is an in-line, four-cylinder engine with a total of 4.76 liters of cylinder volume, and the D7 is an in-line, six-cylinder engine with a total of 7.15 liters of cylinder volume. Both the D5 and the D7 are available in various versions, with turbo or, with turbo and charged-air cooler.

The D5 and D7 are reliable, quiet and economic to operate. A very sturdy basic design, including a stable engine block and over-dimensioned crankshaft bearings provide vibration-free operation.

Economy with uncomplicated service
The new engines have all the prerequisites to ensure overall economy for the boat-owner. Fuel consumption is low due to an efficient fuel system, which, among other features, includes unit injectors for each cylinder, and six-hole injection nozzles that operate under high pressure. Optimal combustion holds exhaust emissions at a low level while fulfilling IMO requirements.

Service and maintenance are simple with accessible servicing points located on the same side of the engine. Wet, replaceable cylinder linings and replaceable valve seats also enable the performance on board of a considerable part of the maintenance work.

Service and support throughout the world
Owners of the new engines have access to qualified service and support from Volvo Penta worldwide. Applications engineers provide support at installation to ensure that the engine operates optimally, with the right type of propeller, etc. Various service programs and rapid access to spare parts promotes reliability, and the avoidance of costly breakdowns.

Technical data

D5A T D5A TA
Cylinder configuration in-line 4 in-line 4
Displacement, total 4.76 l. 4.76 l.
Aspiration turbo turbo/charged-air cooler


Crankshaft output, Rating 1*

With max. Output at 1,900 RPM 98 hp (72 kW) 121 hp (89 kW)
With max. Output at 2,300 RPM 110 hp (81 kW) 139 hp (102 kW)


Crankshaft output, Rating 2*  
With max. Output at 1,900 RPM 129 hp (95 kW) 160 hp (118 kW)
With max. Output at 2,300 RPM 129 hp (95 kW) 160 hp (118 kW)

 * 1 = Heavy duty commercial,
* 2 = Medium duty commercial

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D7A T D7A TA D7C TA
Cylinder configuration in-line 6 in-line 6 in-line 6
Displacement, total 7.15 l. 7.15 l. 7.15 l.
Aspiration turbo turbo/charged-air cooler turbo/charged-air cooler


Crankshaft output, Rating 1*   
With max. Output at 1,900 RPM 147 hp (108 kW) 177 hp (130 kW) 199 hp (146 kW)
With max. Output at 2,300 RPM 167 hp (123 kW) 201 hp (148 kW) 226 hp (166 kW)


Crankshaft output, Rating 2*   
With max. Output at 1,900 RPM 171 hp (126 kW) 208 hp (153 kW) 230 hp (169 kW)
With max. Output at 2,300 RPM 175 hp (129 kW) 237 hp (174 kW) 265 hp (195 kW)

* 1 = Heavy duty commercial,
* 2 = Medium duty commercial

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Marine generating sets 

D5A T D5A TA
Output** 50 Hz 50–70 kWe (63–88 kVA) 70–85 kWe (88–107 kVA)
Output** 60 Hz 60–75 kWe (93–94 kVA) 75–93 kWe (110–116 kVA)

 

 

 

D7A T

 

D7A TA

Output** 50 Hz 85–108 kWe (107–135 kVA) 108–130 kWe (135–163 kVA)
Output** 60 Hz 93–113 kWe (116–142 kVA) 113–139 kWe (142–173 kVA)

 **Depending on choice of generator

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For continuous service – overloadable by 10% for one hour within an operating period of 12 hours.
2002-04-16

For additional information, please contact:
Ann-Charlotte Emegård, AB Volvo Penta
Tel: +46 31-668 418

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