Krupp Titan

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Krupp-Südwerke
Truck Krupp Titan.jpg
titanium
Manufacturer: Krupp-Südwerke
Sales designation: Titan (platform, chassis)

S 80 (tractor unit)
Production period: 1950-1954
Previous model: none
Successor: tiger
Technical specifications
Designs: Flatbed, tractor, chassis
Engines: Krupp SW 6, two-stroke diesel engine, 8724 cm³
Power: 140-154 kW
Length: 8715 mm
Width: 2500 mm
Height: 2950 mm
Wheelbase: 5000 mm
Turning circle: 18.5 m
Payload: 9.3 t
Perm. Total weight: 16 t

The Titan is a truck model by Krupp that was built in Essen from 1950 to 1954 . Until 1951 the vehicle was marketed exclusively as Südwerke Titan , from 1951 until the end of production it was called Krupp-Südwerke Titan . The titanium-based tractor was designated as the S 80 . 976 vehicles were built during the entire production period.

technology

Chassis and transmission

The Titan is a two-axle truck with a riveted ladder frame and front and rear rigid axles . The rear axle has twin tires , while the front axle has single tires. All axles are sprung with two semi-elliptical longitudinal leaf springs. The wheels are cast steel spoke wheels with trilex rims of the dimensions 8.5-22 or 8.5-24. The tires are size 12-22 or 12-24. The foot brake is a compressed air brake from WABCO (Westinghouse), which acts on all four wheels with inner-shoe drum brakes . The handbrake for the rear axle is operated with two levers. The steering is a worm steering with a steering column on the left.

The power is transmitted from the engine to the gearbox via a Fichtel & Sachs LA2 / 50 HG two-disc dry clutch . The transmission is a mechanical six-speed ball-shift transmission of the type ZF AK 6-75S , which is structurally separated from the engine. The drive power comes from the gearbox via a two-part cardan shaft and a hypoid-toothed axle drive and a bevel gear differential to the rear wheels.

engine

The engine is of the Krupp SW 6 , a water-cooled six-cylinder - rows - two-stroke diesel engine with direct injection and Roots-scavenging blower . Because the Allied Control Council banned German manufacturers from building diesel engines with more than 150 hp after the war , it consists of two smaller three-cylinder in-line engine blocks of the SW 3 type , which work on a common forged crankshaft with eight bearings . The two engine blocks, which include the crankcase and cylinder block, are made of cast iron , the cylinder head with metal- asbestos seal facing the engine block is made of light metal. The engine has replaceable wet liners . Mahle cast iron pistons with four compression rings and two oil control rings transmit the power to the crankshaft via double-T connecting rods with sliding bearings. The engine displacement is 8724 cm³ with a cylinder bore of 115 mm and a piston stroke of 140 mm.

DC- flushed two-stroke engines like the SW 6 have no inlet valves , but inlet slots and outlet valves in the cylinder head. With SW 6 there are three vertically hanging valves per cylinder, which are operated via a camshaft , tappet , push rods and rocker arm located in the crankcase . The camshaft is driven by the crankshaft via spur gears.

Unlike small two-stroke gasoline engines, in which the fresh gas is pre-compressed in the crankcase, diesel engines suck in pure air and therefore cannot be lubricated with a fuel-oil mixture. They also work with a high air ratio (λ). The larger quantities of scavenging air required for the gas exchange are provided by an external scavenging air pump, here by a Roots blower driven by a V-belt, so that as little exhaust gas as possible remains in the cylinder.

A piston pump delivers the fuel to two injection pumps (type cover PSA 13) with centrifugal governor . It is injected directly into the piston bowls via injection nozzles (cover type DN 10). Before this, the fuel is cleaned by a paper filter. The motor is pressure-lubricated ; it has two separate oil circuits and two oil pans . The oil is delivered by gear oil pumps. The intake air is cleaned by an oil bath air filter in front of the flushing fan.

An engine brake (throttle valve in the exhaust) was available on request , which increased the braking power of the Krupp Titan.

Technical specifications

Type S 80
engine Dimensions, weights and quantities Power transmission
Engine designation SW 6 length 8715 mm coupling Fichtel & Sachs LA 2/50 HG double- disc dry clutch
Engine type Two-stroke engine width 2500 mm transmission Six-speed gearbox ZF AK 6-75S
Mixture formation Inside height 2950 mm Gear ratios 1st gear: 6.44
2nd gear: 4.1
3rd gear: 2.61
4th gear: 1.62
5th gear: 1
6th gear: 0.72
R. gear: 5.92
design type Double three-cylinder, series Overhang, front 2000 mm
Number of cylinders 6th Overhang, rear 1450 mm
Valve control hanging outlet valves,
inlet slot-controlled
wheelbase 5000 mm
cooling Water cooling Gauge front: 2020 mm
rear: 1820 mm
Drive on Rear wheels
Mixture preparation Direct injection Ground clearance 310 mm wheel size 12-22 or 12-24
Injection pressure 226 bar Empty weight 6700 kg Top speed 62.5 km / h
Bore × stroke 115 × 140 mm Maximum permissible total weight 16000 kg Westinghouse compressed air braking system Brake drum diameter 480 mm
Displacement 8724 cc Maximum load 9300 kg Electrical system
rated capacity 140 kW at 1700 min -1 (up to 1951)
154 kW at 1700 min -1 (1951)
Maximum trailer load 25300 kg Starter 24 V screw drive starter Bosch BPD 6/24 ARS 147 ,
electromagnetically operated
Maximum torque 981 Nm at 1200 min -1 Permissible axle loads front: 6000 kg
rear: 10000 kg
alternator V-belt drive, Bosch LJ / GK300 / 12/1400 R1 , 300 W or 700 W, 12 V
charging starts at a crankshaft speed of 770 min −1
Compression ratio 14: 1 Capacity of the fuel tank 205 l battery 2 × 12 volt lead acid accumulator, 180 Ah
Medium work pressure 7 bar Fill quantity of the oil pans 15 l each Headlights Spherical footlight, 35 W, ø 220 mm
Firing order 1-6-2-4-3-5 Capacity of the gearbox housing 11 l Speedometer Display range 0–70 km / h
Specific fuel consumption 238 g / kWh at 1200 min −1 Capacity of the water cooler 45 l Direction indicators Built-in pendulum angle
Engine ground 1073 kg Turning circle diameter 18.5 m Fuel consumption 20 l / 100 km

Individual evidence

  1. a b c d Ulrich Heyer, Gunter Waize and Oliver Kaschel: The gigantic titan . In measure: stick. Volume 24, 2/2005. Pages 36-38
  2. Magirus-Iveco-Museum: After the titan comes the tiger
  3. a b c d e f g Association of the Automotive Industry : Krupp-Südwerke Essen - Type S80 ( Memento of the original from April 11, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Group 15, No. 1600. Frankfurt am Main. January 1954  @1@ 2Template: Webachiv / IABot / nvg.de