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File:Pz III Motor-Getriebe.svg

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Description
Deutsch: Motor und Maybach-Variorex-Vorwählgetriebe eines Panzer III
English: Maybach HL120 TRM V-12 gasoline engine (r.) and Maybach Variorex SRG 328 145 pre-selector gearbox (l.), with 10 forward and 1 reverse (10+1) gears. This transmission was fitted to Panzer III tanks, Ausf. E, F, & G only. Recurring problems with this mechanically complex gearbox by the autumn of 1939 led to its replacement with the 6+1 Zahnradfabrik (ZF) 'Aphon' SSG 77 manual synchro transmission in all the later Panzer IIIs, Ausf. H to N, although the manufacturing difficulties with the Variorex were resolved by early 1941. Source: Jentz & Doyle (2007): Panzer III - Ausf. E, F, G. H. Panzer Tracts No. 3-02.

Legend, clockwise from top right: Rückschlagventil: Non-return valve (the air compressor is directly below). Unterdruckbehälter: vacuum tank. Unterdruckleiter: vacuum pipe. Gelenkwelle: drive shaft. Kupplung: main clutch. Auslöseventil: release valve. Getriebe: gearbox. Fußkupplung: clutch pedal. Vorwählhebel: pre-selector lever. Fahrtrichtungshebel: direction lever (V=forwards, R=reverse). Gasgeber: throttle sensor(?) (There are also acceleration and braking clutches inside the gearbox.)
NB The air inlet of the compressor is connected to the system, not the outlet: the compressor works "in reverse" to create a vacuum. Inside the gearbox there are vacuum-actuated pistons: these move dog clutches, which select the required gear ratio.

Date
Source Own work
Author Hedwig Klawuttke
Hedwig Klawuttke (dt. Hauptkonto)
Permission
(Reusing this file)
This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.
Other versions Derivative works of this file:  Pz III Motore-Cambio.svg

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Date/TimeThumbnailDimensionsUserComment
current17:13, 7 June 2009Thumbnail for version as of 17:13, 7 June 20091,050 × 520 (398 KB)Hedwig Klawuttke{{Information |Description={{de|1=Motor und Maybach-Variorex-Vorwählgetriebe eines Panzer III}} |Source=Eigenes Werk (own work) |Author=Hedwig Klawuttke<br>[[:de:Benutzer:Hedwig Klawuttke|Hedwig Klaw

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