Tatra differential

Tatra differential


  • Road Test: Tatra Phoenix
  • Tatra mining truck at Bauma
  • The car maker addressed the following requirements for the vehicle — can overcome the most difficult terrain and high tensile strength. The chassis was taken from previous models — However, the main difference from the previous models was to use COE cab, which changed the location of the place for the driver.

    Motor and Equipment To this truck was delivered eight-cylinder petrol engine, air-cooled engine, type T tested in racing special T and T was first used in series. It was one of the most versatile engine that could automaker to offer.

    Engine was 2. Of course, such an engine is giving into passenger cars especially Tatra , but T was the only one carburetor, less compression and dry sump with double oil pump, and right because he crossed the T very steep climb without the risk of failure of the engine lubrication.

    This drive unit is supplied four-speed automatic transmission that has been associated with a two additional gear. Tatra had a standard rear-wheel drive. However, thanks to a special lever in the cockpit to put the drive to change the rear to the front wheels.

    The active all-wheel drive was a condition for the possibility of reduced shifting gears. Even u Tatry there was also the possibility of a differential and included a compressor that dofukoval tires. In the most difficult terrain Tatra helped even more so.

    Hand throttle. Design and chassis Chassis for this unique car has become a showcase for all-terrain vehicles. It was formed from the backbone frame, which was followed by the front and rear axle boxes. Thanks to the proximity of both axles should Tatra smallest turning angle of the car. For example, similar to the Praga V3S should rise also pulled out, but because of greater breaking angle would zohnula cardan shaft.

    Both axles were sprung by torsion bars, thanks to them, the car behaved on the road comfortably even at higher speeds. The terrain is made by how the car — a powerful engine, high ground clearance, wide tires and even today he can beat younger and more modern cars. Unfortunately i Tatra had one major mistake — brake! On axles with drum brake single-circuit occurred, they have been for quite insufficient braking effect and the full load of the car that was literally hell for the driver to brake.

    There appeared not only the car but also as a platform loading surface 3 x 1. Another was its use in health care, with special cabin and the fire service, and even the chassis is built armored car. He took a few pieces of the then Czechoslovak Society for the production of films.

    Last appeared in the Czech film Roaming. The last truck is conceived as an expedition where from to the present crossed Africa, Asia, Australia, South America and drove to more than 60, km. A lot of cars from the army was preserved, and if so, the cars were in poor condition. Rallies on military equipment or the Tatra You can still see a few specimens.

    It is also possible to Tatra seen in the volunteer fire brigade or even a Truck Trial competitions. Photo: cs.

    Road Test: Tatra Phoenix 16th March Czech-built all-wheel drive Tatra trucks have been available in the UK for over a year now, and we have been out to drive them. These could be just the ticket for off-road applications… Most readers will likely be aware of the Czech brand Tatra, but unless you have operated into, or visited, the former Eastern Bloc you might not have seen one of these trucks on the road — and certainly not in the UK. Until now, that is.

    Tatra produces specialist all-wheel drive vehicles for off-road applications. The collapse of the Iron Curtain ended its production of general haulage tractor units and the company has since concentrated on small-volume specialist vehicles aimed at construction, utility and military applications.

    Tatra sells to order, so you order the truck you want and Tatra then builds it. Tatra spec Tatras are heavy-duty vehicles with all-wheel drive aimed at off-road applications, but capable of driving on the tarmac as well at 56 mph. They are similar to Unimogs, but much, much bigger. Quarry, forestry, agricultural, military, utility and council work are the most likely businesses that would benefit, but heavy-haulage and wrecker firms may also want to check over the trucks.

    They can have lift axles, steer axles or, if you need them, unpowered axles — and pretty much all combinations of the four. The company is very flexible in what it can offer. Back up is not an issue, because most DAF dealers will support the brand as it is so similar to a DAF — but any purchaser will need to check with their local DAF dealer that they will support the truck.

    On the Road Trucking went to see the Phoenix trucks and have a drive of both. The tractor unit was so new, its fifth wheel was only fitted the day before and had yet to be used, so we took the unit out on its own.

    Getting in and out of the cab is not as easy as a normal CF. But once inside, the comfort of the sleeper cab is there; for an off-road truck, the cab trim is superb.

    Visibility is excellent because you sit so much higher. The gearbox options are the speed TraXon, Allison six-speed and speed manual.

    The front axle features disengagable drive and axle differential lock. The rear axles are driven with swinging half axles, axle differential locks and inter-axle differential lock. Cab choices are day and sleeper, while a high-roof sleeper is only possible on the MXengined options due to height. Sleeper cabs are actually a useful option even in this market, where drivers may be on a site contract that requires them to be away from base for days at a time.

    There are none of the XF cab options. But with that rear-steer axle, it is incredibly manoeuvrable. In fact, you need to take your time to get used to the way it moves, especially when reversing. But if you can deliver good performance and an acceptable fuel return, then so much the better.

    A recent run — again, admittedly without a trailer — of this tractor to Chelmsford saw it return 8. The truck has central tyre inflation, which will appeal to timber hauliers, but without the external pipes.

    This is a left-hand drive model, but after a few minutes in the chair it soon becomes irrelevant because the height of the cab gives you such great forward vision. That said, most Brits would of course still go for an RHD. The way the rigid handles is unbelievable — it literarily sticks to the road. It is practically bullet proof! It had a day cab accordingly a much more basic trim inside — arguably a bit spartan.

    The heater works tremendously well, so it was warm and cosy in the cab. However, it has reported nationwide interest in the truck range. The trucks are built in Koprivnice in the Czech Republic and shipped to the UK for fitting with their bodies. So, do you need to look at a Tatra?

    The collapse of the Iron Curtain ended its production of general haulage tractor units and the company has since concentrated on small-volume specialist vehicles aimed at construction, utility and military applications.

    Tatra sells to order, so you order the truck you want and Tatra then builds it. Tatra spec Tatras are heavy-duty vehicles with all-wheel drive aimed at off-road applications, but capable of driving on the tarmac as well at 56 mph. They are similar to Unimogs, but much, much bigger. Quarry, forestry, agricultural, military, utility and council work are the most likely businesses that would benefit, but heavy-haulage and wrecker firms may also want to check over the trucks.

    They can have lift axles, steer axles or, if you need them, unpowered axles — and pretty much all combinations of the four. The company is very flexible in what it can offer. Back up is not an issue, because most DAF dealers will support the brand as it is so similar to a DAF — but any purchaser will need to check with their local DAF dealer that they will support the truck.

    On the Road Trucking went to see the Phoenix trucks and have a drive of both. The tractor unit was so new, its fifth wheel was only fitted the day before and had yet to be used, so we took the unit out on its own. Getting in and out of the cab is not as easy as a normal CF.

    But once inside, the comfort of the sleeper cab is there; for an off-road truck, the cab trim is superb. Visibility is excellent because you sit so much higher.

    Road Test: Tatra Phoenix

    The gearbox options are the speed TraXon, Allison six-speed and speed manual. The front axle features disengagable drive and axle differential lock. The rear axles are driven with swinging half axles, axle differential locks and inter-axle differential lock. Cab choices are day and sleeper, while a high-roof sleeper is only possible on the MXengined options due to height. Sleeper cabs are actually a useful option even in this market, where drivers may be on a site contract that requires them to be away from base for days at a time.

    Tatra chassis concept Unique Tatra chassis design concept comprises several proprietary technical solutions. The chassis with the central tube is unique in the world, originating in Tatra 90 years ago exactly. These vehicles successfully climb to almost all types of terrain on the planet.

    Tatra mining truck at Bauma

    The central tube and the frame welded to it by means of cross members form an extremely rigid vehicle suspension system, which is significantly stiffer in torsion and bending compared to a common frame design. An important fact is that the extreme chassis rigidity is the result of combining the central tube and frame. Long-term measurements and calculations show that the central tube significantly contributes to the torsional rigidity of the chassis.

    High stiffness of the support structure decisively affects vehicle behavior and performance, as well as load to the frame and body.

    High torsional resistance affects the stability and steerability high lateral stability when cornering on road surfaces with a transverse slope and rugged terrain. Proven to reduce stress on the welded frame and superstructure tankers, cranes, etc. The Tatra concept chassis can work without a welded upper frame, which means that some of the superstructures can be attached by cross members directly to the central tube, which reduces material costs of the subframe for bodybuilders and allows for increased superstructure payload.

    A classical vehicle concept with a ladder frame can not afford similar solutions. The rigid chassis supporting structure, in conjunction with independently suspended swinging half-axles, allows for a greater, up to double off-road speed, in comparison to conventional vehicles, while maintaining comfort.

    Two variants of S3 tippers with a wheelbase 3, mm, two variants of frame chassis with a wheelbase 4, mm and 4, mm and mounting options the so-called daily or sleeper cabs and, finally, frame chassis with a long four-door cab.

    Eight variants with a total weight of 30t are divided into two groups in terms of rear axle suspension. To achieve the emission limits according to respective Euro V standards, a proven and highly reliable system is used for purifying exhaust gas downstream the manifold using SCR technology Selective Catalytic Reductionworking with the technical fluid AdBlue.


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