Benz Bz.IV

Bz.IV
Benz Bz.IV
Type Inline piston engine
National origin Germany
Manufacturer Benz
First run c. 1916
Number built 6,400
Developed from Benz Bz.III
Developed into Benz Bz.IVa

The Benz Bz.IV was a German six-cylinder, water-cooled, inline engine developed for aircraft use. Deliveries began in 1916 and some 6,400 were produced.

Design and development

The Bz.IV was a dual-camshaft design, with two intake and two exhaust valves per cylinder. The cylinders were cast iron surrounded by a sheet metal cooling jacket. The crankcase was aluminium and pistons were initially steel but later versions had aluminium pistons. A high compression version of the engine (Bz IVü) was produced from 1917 onwards and can be recognised by the red bands painted on each cylinder. In February 1918, pistons from Bz.IV were the first captured aluminium pistons to be examined by the British Ministry of Munitions.[1]

Applications

Specifications

Data from [2]

General characteristics

Components

Performance

See also


Related lists

References

Wikimedia Commons has media related to Benz Bz.IV.
  1. "Report on Aluminium Pistons from 230 HP Benz Engines". Flight. 4 July 1918.
  2. Grey, C.G. (1969). Jane's All the World's Aircraft 1919 (Facsimile ed.). David & Charles (Publishing) Limited. pp. 1b to 145b. ISBN 978-0-7153-4647-1.
  • Grey, C.G. (1969). Jane's All the World's Aircraft 1919 (Facsimile ed.). David & Charles (Publishing) Limited. pp. 1b to 145b. ISBN 978-0-7153-4647-1. 
  • Kroschel, Gunter and Helmust Stützer. (1977) Die deutschen Militarflugzeuge 1910-1918 Wilhelmshaven: Lohse-Eissing Mittler.
  • Restoration of Benz IV engine at Brussels Air Museum
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