Audi type M
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Audi Type M in the museum mobile , Ingolstadt
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Type M | |
Production period: | 1925-1928 |
Class : | Upper class |
Body versions : | Pullman limousine |
Engines: |
Otto engine : 4.7 liters (51 kW) |
Length: | 5500 mm |
Width: | 1850 mm |
Height: | 2050 mm |
Wheelbase : | 3750 mm |
Empty weight : | 2500 kg |
Previous model | Audi type K |
successor | Audi type R |
The Audi 18/70 hp Type M was an upper class - cars with six-cylinder engine of the Audi Werke AG of Zwickau . The first Audi with a mechanical-hydraulic four-wheel brake was shown at the Berlin Motor Show in autumn 1923 as the successor to the Type K with a four-cylinder engine .
General
In addition to the two prototypes, 228 Type Ms were built between 1925 and 1928. Today there are still three vehicles and a chassis . The successor was the Type R "Imperator" with an eight-cylinder engine, manufactured from 1927 .
Some innovations made in 1923 the Audi 18/70 hp Type M catch the eye of the Berlin Motor Show: the one from aluminum alloy manufactured engine block was designed with a smooth surface; the overhead camshaft was driven by a vertical shaft; for the first time the intake air was filtered; a compressor housed in the gearbox made it easier to inflate the tires.
The vehicle had a front built six-cylinder in-line engine with 4.7 liter displacement , the 70 hp (51 kW) at 2500 min -1 made. The engine had an eight-bearing crankshaft , forced lubrication with an oil cooler and thermostatically controlled water cooling . It drove the rear wheels via a four-speed gearbox with a shift lever in the middle of the car. The car had a leaf-sprung rigid axle at the front and rear . With a price of 22,300 Reichsmarks , the four-door was Pullman - Limousine one of the most expensive cars in the German Reich and brought Audi the bankruptcy very close.
Technical specifications
Type | M (18/70 hp) |
Construction period | 1925-1928 |
Superstructures | PL4 |
engine | 6-cylinder in-line engine, 4-stroke |
Valve train | Overhead camshaft (ohc) with vertical shaft |
Bore × stroke | 90 mm × 122 mm |
Displacement | 4655 cc |
Horsepower) | 70 |
Power kW) | 51 |
consumption | 22-25 liters / 100 km |
Top speed | 120 km / h, continuous speed 100 km / h |
Empty weight | 2500 kg |
Electrics | 12 volts |
length | 5500 mm |
width | 1850 mm |
height | 2050 mm |
wheelbase | 3750 mm |
Front / rear track | 1450 mm / 1450 mm |
source
- Werner Oswald : Deutsche Autos 1920–1945, Motorbuch Verlag Stuttgart, 10th edition (1996), ISBN 3-87943-519-7
Web links
- www.audi.com - History 1919–1932: Audi 18/70 hp Type M Pullman limousine cutaway model, 1925 and other models
Remarks
- ↑ In relation to the year 1925, this amount, adjusted for purchasing power, corresponds to around € 85,000 in today's currency. The figure was based on the template: Inflation determined, rounded to € 1,000 and applies to the past January.