Schwezow ASch-82
The Schwezow ASch-82 ( Russian Швецов АШ-82 ) is an air-cooled Soviet aircraft engine . The abbreviation ASch refers to the initials of the designer Arkadi Schwezow .
development
The engine was in 1941 at the plant no. 19 as an air-cooled 14-cylinder double star - petrol engine with a starting power developed by 1,700 hp (1,250 kW) and came among others in the fighter La-5 used. In 1943 the ASch-82FN appeared with direct gasoline injection , which developed a take-off power of 1,850 hp (1,361 kW) and was built into the most powerful La-5 version, the La-5FN, as well as the subsequent piston engine hunters from Lavochkin . This resulted in the ASch-82T for civilian use, used for example in the IL-12 and IL-14 commercial aircraft . There was also a license version of this version, which was built in the GDR in what was then Karl-Marx-Stadt and in Czechoslovakia near Avia - there as the M-82T. A total of around 70,000 units of this type of engine were built, 57,000 of them during the Second World War.
The ASch-82W, which was equipped with a fan and clutch and was used in the Mi-4 and Jak-24 types, appeared especially for use in helicopters .
In China, the ASch-82W was built under license as the Dongan HS-7. A Chinese development called the Dongan HS-8 combined the housing and turbocharger of the HS-7 with the reduction gear of the ASch-82T. The HS-7 was used to drive the Fw 190A airframe in the 2000s .
construction
The ASch-82 has a reduction gear, two ignition magnets and a single-stage mechanical radial loader . The cylinders, arranged in two rows, are equipped with double ignition and are made of light metal with a retracted gray cast iron bushing. The drives for the front lubricant pump, the speed controller and the ignition magnets are located in the front housing. The drives for the rear injection, lubricant and hydraulic pumps are located in the rear loader housing and on the rear cover.
Technical specifications
| Parameter | Data |
|---|---|
| Type | Four-stroke - compressor - Gasoline Engine |
| cylinder | 14, air-cooled, two-row star arrangement (two 7-cylinder stars) |
| drilling | 155.5 mm |
| Hub | 155.0 mm |
| Displacement | 41.2 l |
| length | 2010 mm |
| diameter | 1300 mm |
| Dry matter | 1020 kg |
| Starting power | 1,900 PS (1,397 kW) at 2600 rpm (maximum 5 min) |
| rated capacity | 1,530 hp (1,125 kW) at 2400 rpm |
| maximum travel performance | 980 hp (721 kW) at 2040 rpm |
| normal travel service | 700 hp (515 kW) at 2040 rpm |
| economical travel service | 610 hp (449 kW) at 1760 rpm |
| fuel | Petrol, min. 95 octane |
| Fuel consumption | 210 to 325 g / PSh |
literature
- Heinz A. F. Schmidt: Aircraft engines of socialist countries . In: Flieger-Jahrbuch 1971 . Transpress , Berlin 1970, p. 109 .
Web links
Individual evidence
- ^ Gerhard Schmid: Flug Werk FW 190 - the official first flight. In: AirVenture News. airventure.de, October 29, 2004, accessed on October 22, 2015 .