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Free-piston engine used as a gas generator to drive a turbine. A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by the interaction of forces from the combustion chamber gases, a rebound device (e.g., a piston in a closed cylinder) and a load device (e.g. a gas compressor or a linear alternator).
A four-wheel drive, also called 4×4 ("four by four") or 4WD, is a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case providing an additional output drive shaft and, in many instances, additional gear ranges. A four-wheel ...
Website. www.Lifetime.com. Lifetime Products Inc. is a privately owned company founded in 1986. Its main products are blow-molded polyethylene folding chairs and tables, picnic tables, home basketball equipment, [2] sheds, coolers, kayaks and paddleboards, and lawn and garden items, along with OEM steel and plastic items from other companies.
Rear-engine, four-wheel-drive layout. R4 layout, the engine is located behind the rear axle. In automotive design, an R4, or Rear-engine, Four-wheel-drive layout places the internal combustion engine at the rear of the vehicle, and drives all four roadwheels. This layout is typically chosen to improve the traction or the handling of existing ...
A transfer case is an intermediate gearbox that transfers power from the transmission of a motor vehicle to the driven axles of four-wheel-drive, all-wheel-drive, and other multi-axled on- and off-road machines. A part of the vehicle's drivetrain, it employs drive shafts to mechanically deliver motive power. The transfer case also synchronizes ...
4-Ton Truck, 4x4 (Four Wheel Drive Model HAR-1) During the Second World War the Four Wheel Drive Model HAR-1, a 4-Ton, 4x4 Truck, was produced and delivered to the US-Army. [8] The US Army placed an order and between 7,000 and 9,000 were produced for them, although most of these were supplied to allies under Lend-Lease. [9]
Powertrain layout. The powertrain layout of a motorised vehicle such as a car is often defined by the location of the engine or motors and the drive wheels. Layouts can roughly be divided into three categories: front-wheel drive (FWD), rear-wheel drive (RWD) and four-wheel drive (4WD). Many different combinations of engine location and driven ...