BMW 114

The BMW 114 was an aircraft engine, the German manufacturer BMW. These were a nine-cylinder radial engine, which was designed as a diesel engine.

Development

From 1936 114 three test specimens were produced under the name of BMW, which were constructed on the basis of the gasoline engine with BMW 132A loader. Of these, two were air-cooled and a liquid-cooled. The two air-cooled specimens differed by the type of injection ( nine single-pump or a pump block ). In all samples the Lanova injection procedure was applied. The liquid-cooled engine was given six small segment coolers that were placed in the interstices of the cylinder ( see figure). Technical difficulties were caused by the high thermal stress ( burn spots in the air reservoir and the cylinder head at the air-cooled versions and cracked water jackets in the liquid-cooled engine ) and fuel injection ( different lengths injection lines at the block pump, dripping of the injectors by elasticity of the lines ). Despite these difficulties, each of the following specific consumption could be achieved:

  • Air-cooled version: at full load ( 456 kW at 2,050 min -1): 266 g / kWh
  • Air-cooled version for: continuous power ( 375 kW at 1,939 min -1): 224-231 g / kWh
  • Liquid-cooled version: at full load ( 460 kW at 2,050 min -1): 265-272 g / kWh.

The experiments were, however, set in 1937 again. To a production run, it did not come.

Specifications

  • Cylinder: 9
  • Gas exchange: 2 valves, OHV valve control
  • Displacement: 27.7 l
  • Power: 625 hp at 2050/min

Pictures of BMW 114

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