Engineering:Duesenberg 16-valve straight-4 aero engine
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| Duesenberg 16-valve straight-4 aero engine | |
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| 1917 newspaper advertisement for the aero engine | |
| Type | Water-cooled, straight-4 piston engine |
| National origin | United States |
| Manufacturer | Duesenberg |
| Designed by | Fred Duesenberg |
| First run | 1916 |
| Developed from | Duesenberg 16-valve straight-4 racing engine |
The Duesenberg 16-valve straight-4 aero engine was based on the company's earlier engine of a similar configuration used for automotive racing. Completed in 1916, the first two engines were delivered to the Gallaudet Aircraft Company for use in their D-1 maritime patrol aircraft later that year.
Data from Duesenberg Aircraft Engines: A Technical Description[1]
General characteristics
- Type: Liquid-cooled, straight-4 piston engine
- Bore: 4.75 in (121 mm)
- Stroke: 7 in (178 mm)
- Displacement: 496 cu in (8,130 cm3)
- Length: 43.375 in (1,101.7 mm)
- Width: 15.5 in (390 mm)
- Height: 37.5 in (950 mm)
- Dry weight: 509 lb (231 kg) (geared version)
- Designer: Fred Duesenberg
Components
- Valvetrain: Two intake and two exhaust valves per cylinder actuated by rocker arms
- Fuel system: 1 × Miller updraft carburetor
- Oil system: Wet sump, one pressure pump
- Cooling system: Pressurized water
- Reduction gear: 0.579:1
Performance
- Power output: 140 hp (100 kW)
- Specific power: 0.25 lb/cuin (2.2 kg/kW) (geared)
- Power-to-weight ratio: 3.64 lb/hp (2.31 kg/kW) (geared)
Citations
- ↑ Pearce, pp. 30–33
Bibliography
- "The Gallaudet Story: Part 8A: The D-1 Hydroplane for the Navy". WWI Aero: The Journal of the Early Aeroplane (185): 30–45. August 2004. ISSN 0736-198X.
- "The Gallaudet Story: Part 8B: The D-1 Hydroplane for the Navy". WWI Aero: The Journal of the Early Aeroplane (186): 12–21. November 2004. ISSN 0736-198X.
- Pearce, William (2012). Duesenberg Aircraft Engines: A Technical Description. Los Osos, California: Old Machines Press. ISBN 978-0-9850353-0-3.
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