Maybach HL230
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The Maybach HL230 was a water-cooled 60° 23-litre V12 petrol engine designed by Maybach. It was used during World War II in medium and heavy German tanks – the Panther, Jagdpanther, Tiger II, Jagdtiger (HL230 P30), and later versions of the Tiger I and Sturmtiger (HL230 P45).
Description
The engine was an upgraded version of the slightly smaller HL210 engine which was used to equip the first 250 Tiger I tanks built, and which had an aluminium crankcase and block. The earlier HL210 engine had a displacement of Template:Cvt or Template:Cvt per cylinder; with a bore of Template:Cvt and stroke of Template:Cvt.
With the HL230, engine bore was increased from Template:Cvt. It had a displacement of Template:Cvt, or Template:Cvt per cylinder from a bore of Template:Cvt and stroke of Template:Cvt. The maximum power output was Template:Cvt at 3,000 rpm. Maximum torque is Template:Cvt at 2,100 rpm. Typical output was Template:Cvt at 2,500 rpm.
The crankcase and block of the HL230 were made of grey cast iron and the cylinder heads from cast iron. The engine weighed Template:Cvt and its dimensions were Template:Cvt. Aspiration was provided by four twin-choke Solex type 52JFF carburettors. Ignition was by two magnetos. The compression ratio was 6.8:1. As was typical practice for Maybach, the engine used a tunnel crankshaft.
Late in the war the HL234 upgrade with fuel injection was recommended by the Entwicklungskommission Panzer for use in the underpowered Tiger II tank. The power output was expected to increase to between Template:Cvt, and with supercharging to Template:Cvt.[1]
Production
Approximately 9,000 HL230s were produced in total by Maybach, Auto Union and Daimler-Benz.
Beginning on 3 November 1944, they were produced at the Richard I underground factory at Leitmeritz concentration camp.[2]
See also
- List of WWII Maybach engines
- Kharkiv model V-2, equivalent contemporary Soviet tank engine
- Rolls-Royce Meteor, equivalent contemporary British tank engine
References
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External links
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- Copy of British report on the HL230 and HL210 engines - Tiger I Information Center
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