Isetta – wikipedia electricity symbols worksheet

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The car originated with the Italian firm of Iso SpA. In the early 1950s the company was building refrigerators, motor scooters and small three-wheeled trucks. Iso’s owner, Renzo Rivolta, decided to build a small car for mass distribution. [10] By 1952 the engineers Ermenegildo Preti [11] and Pierluigi Raggi had designed a small electricity song lyrics car that used the motorcycle engine of the Iso Moto 200 and named it Isetta—an Italian diminutive meaning little iso. [10]

The Isetta caused a sensation when it was introduced to the motoring press in Turin in November 1953, [10] it was unlike anything seen before. Small (only 2.29 m (7.5 ft) long by 1.37 m (4.5 ft) wide) and egg-shaped, with bubble-type windows, the entire front end of the car hinged outwards to allow entry. In the event of a crash, the driver and passenger were to exit through the canvas sunroof. The steering wheel and instrument panel swung out with the single door, as this made access to the single bench seat simpler. The seat provided reasonable comfort for two occupants, and perhaps a small child. Behind the seat was a large parcel shelf with a spare wheel located below. A heater was optional, and ventilation was provided by opening the fabric sunroof.

Power came from a 236 cc (14.4 cu in), 7.1 kW (9.5 hp) split-single two-stroke motorcycle engine. [12] The engine was started by a combination generator-starter known as Dynastart. A manual gearbox provided four forward speeds and reverse. A chain drive connected the gearbox to a solid rear axle with a pair of closely spaced 25 cm (10 in) rear wheels. The first prototypes had one wheel at the rear, but having a single rear wheel made the car prone to roll-overs, [ citation needed] so the rear wheel layout was changed to two gas x coupon 2015 wheels set 48 cm (19 in) apart from each other. This narrow track eliminated the need for a differential. The front axle was a modified version of a Dubonnet independent front suspension. The Isetta took over 30 seconds to reach 50 km/h (31 mph) from rest. Top speed was only about 75 km/h (47 mph). The fuel tank held only 13 litres (3.4 US gal; 2.9 imp gal). However, the Isetta would get somewhere between 5.6 l/100 km; 42 mpg ‑US (50 mpg ‑imp) and 4.0 l/100 km; 58 mpg ‑US (70 mpg ‑imp) depending on how it was driven. [ citation needed]

In 1954, Iso entered several Isettas in the legendary Mille Miglia where they took the top three spots in the economy classification. Over a distance of 1,600 km (1,000 mi) the drivers achieved an average speed of over 70 km/h (43 mph). In view of its maximum speed, which was just 15 km/h (9 mph) higher, this was an almost incredible figure. However, despite its initial success, the Isetta was beginning to slip in popularity at home. This was mainly due to renewed competition from Fiat with its 500C model.

Renzo Rivolta wanted to concentrate on his new Iso Rivolta sports car, and was extremely interested in doing licensing deals. Plants in Spain and Belgium were already assembling Isettas and Autocarros using Italian made Iso components. BMW began talking with Rivolta in mid-1954 and bought not just a license but the complete Isetta body tooling as well. Rivolta did not stop with licensing the Isetta to BMW. He negotiated similar deals with gas efficient suv 2015 companies in France and Brazil.

In 1954, VELAM acquired a licence from Iso to manufacture a car based on the Isetta. Since Iso had sold the body making equipment to BMW, VELAM developed their own body but used the original Iso engine. The gas news VELAM body was rounder and more egg-like than Iso’s Isetta and was known by the French as the ‘yogurt pot’. Instead of a chassis like the Italian and German versions, there was a sub-frame bolted to the body at the rear, which held the rear tires, engine, and transmission. The front suspension was bolted to the front of the body. The front door was opened by push button instead of a handle, and the speedometer was mounted in the center of the steering wheel.

VELAM started production of the car in 1955 at the old Talbot factory at Suresnes, France, and the car was introduced at the 1955 Paris car show. All told, five versions of the car were built: the standard Isetta, a convertible version, a luxury version, a one-off Sport version, and a race car. Due to competition from the Renault Dauphine, production ceased in 1958. [18]

While it retained the bubble window styling, it differed from the Italian model in that its headlamps were fixed separately to the sides of the bodywork and it carried the BMW badge below the windscreen. The car was also redesigned to take a modified version of the 250 gas 99 cents a litre cc four-stroke engine from the BMW R25/3 motorcycle and the front suspension was changed. The single-cylinder generated 9 kW (12 hp) at 5800 rpm. The crankcase and cylinder were made of cast iron, the cylinder head of aluminium. However, the head was rotated by 180° compared with the motorcycle engine. The twin-bearing crankshaft was also different in the Isetta power unit, being larger and featuring reinforced bearings. One of the reasons for this was the heavy Dynastart unit which combined the dynamo and self-starter. The fuel mixture was provided by a Bing sliding throttle side draft motorcycle carburetor. In addition to further changes of detail, the BMW engineers enlarged the sump for installation in the car and cooled the engine by means of a radial fan and shrouded ducting.

The power train from the four-speed gearbox to the two rear wheels was also unusual: fixed to the gearbox output drive was something called a Hardy disc, which was a cardan joint made of rubber. On the other side of it was a cardan shaft, and finally a second Hardy disc, which in turn was located at the entrance to a chain case. A duplex chain running in an oil bath led finally to a rigid shaft, at each end of which were the two rear wheels. Thanks to this elaborate power transfer, the engine-gearbox unit was both free of tension and well soundproofed in its linkage to the rear axle.

In 1956, the government of the Federal Republic of Germany changed the regulations for motor vehicles. Class IV licences issued from 1 unit electricity cost in bangalore that time onward could only be used to operate small motorcycles and could no longer be used to operate motor vehicles with a capacity of less than 250 cc. At the same time, the maximum capacity allowed for the Isetta’s tax category was 300 cc. Class IV licences issued before the change in the regulations were grandfathered and allowed to be used as before. [ citation needed]

This change in regulations encouraged BMW to revise their Isetta microcars. In February 1956 a 300cc engine was introduced. [21] The engineers enlarged the single cylinder to a 72 mm (2.8 in) bore and 73 mm (2.9 in) stroke, which gave a displacement of exactly 298 cc; at the same time, they raised the compression ratio 5 gases from 6.8 to 7.0:1. As a result, the engine power output rose to 10 kW (13 hp) at 5200 rpm, and the torque rose to 18.4 N⋅m (13.6 ft⋅lbf) at 4600 rpm. The maximum speed remained at 85 km/h (53 mph), yet there was a marked increase in flexibility, chiefly noticeable on gradients.

The British cars had right-hand drive with the door hinged from the right hand side of the car and the steering column moved across to the right as well. Right-hand drive meant that both the driver and the engine were on the same side, so a 27 kg (60 lb) counterweight was added to the left side to compensate. Dunlop tyres were used, and Lucas electrics replaced the German Hella and Bosch components, with a different headlamp housing being used. Girling brake components replaced the ATE brake parts.

The Isetta was not popular in the UK until a three-wheeled version was introduced. Although three-wheeled vehicles are more prone to rolling over, there was a financial advantage: they could evade automobile legislation and taxation by being classed as three-wheeled motorcycles, [23] and could be driven with a motorcycle licence. Isetta of Great Britain continued to produce four-wheeled Isettas, but only for export to Canada, New Zealand, and Australia.

The now defunct British firm Tri-Tech, under the model name Zetta, sold a kit car or even an assembled complete BMW Isetta lookalike replica from modern parts, including Honda CN 250 cc single-cylinder water-cooled engines with automatic transmission (standard) or Kawasaki 500 GPS two-cylinder water-cooled motorcycle engines with optional manual transmission.

Some parts, new or used, were from donor vehicles. Front suspension and steering were from the Bedford Rascal (later sold under the Vauxhall marque) or the original and almost identical Suzuki Supercarry light duty van or pick-up. Drum brakes and wheels were from Morris and the subsequent British Leyland Motor Corporation Mini. Prices ranged from c. £2650 for the kit up to c. £9450 for a complete version electricity lab physics.