Pratt & Whitney PW4000
The engines of the series Pratt & Whitney PW4000 are turbofan - or turbofan engines with high bypass ratio . The series was developed by Pratt & Whitney in the early 1980s as the successor to the JT9D series for use on wide-body aircraft and first flew in 1987 in commercial operation.
The series is now divided into the three sub-types PW4000-94, PW4000-100 and PW4000-112, with the numbers after the dash indicating the diameter of the fan in inches . In marketing, however, the thrust is indicated in the name, e.g. B. PW4084 for the PW4000-112 variant with 84,000 lb f (374 kN ) thrust.
commitment
The PW4000-94 variant is used on the Airbus A300-600 / A310-300 , Boeing 767-200 / 767-300 / 767-400ER , Boeing 747-400 and McDonnell Douglas MD-11 aircraft types . The thrust range extends from 52,000 to 62,000 lb f (231 to 283 kN).
The PW4000-100 variant is a derived version of the PW4000-94 and was specially developed for the Airbus A330 . The thrust range is from 64,500 to 68,600 lb f (287 to 305 kN). The PW4000-100 was the first engine in aviation history to receive approval according to the ETOPS regulations of the ICAO even before its commercial use . In November 2007, P&W started developing the improved PW4000-100 Advantage70 TM variant . This started its flight test in mid-2008 and is expected to achieve a thrust increase of two percent and fuel savings of one percent and savings in maintenance costs. Since 2009 both new PW4170 Advantage 70 engines and upgrades for existing engines have been offered.
The PW4000-112 variant is a version specially derived for the Boeing 777 and has a thrust range of 74,000 to 98,000 lb f (329 to 436 kN). The version with the sales name PW4084 was the so-called launch engine, i.e. the engine that the launch customer had selected for his aircraft. It went into commercial operation at United Airlines in June 1995.
Technical data and versions
Designation system of the individual versions
The manufacturer uses four-digit numbering for the PW 4000 series to identify the engine versions. The first digit of the four-digit number indicates the series (in this case always 4 for 4000 series). The second digit indicates the aircraft manufacturer for which the engine is approved. Here the zero stands for Boeing 767, 747, 777; the one for Airbus A300, A310, A330; the four for the MD-11. The third and fourth digits denote the certified thrust in US pounds (lb f ). Only the tens and thousands digits are shown here. Example: A PW4168 is a 4000 series engine that is certified for an Airbus (A330) and has a certified thrust of 68,000 lb f .
Technical data of the PW4000-94 series "
| Model: | PW4052 / PW4152 | PW4056 / PW4156 | PW4158 | PW4060 | PW4062 |
|---|---|---|---|---|---|
| Fan diameter: 94 inches (2.38 m) | |||||
| Type: twin-shaft turbo engine | |||||
| Number of compressor stages: 1 fan, 4 low pressure, 11 high pressure | |||||
| Number of turbine stages: 2 high pressure, 4 low pressure | |||||
| Length: 3,371 m | |||||
| Overall pressure ratio: 27-34: 1 | |||||
| Sidestream ratio: 4.8 to 5.1 | |||||
| Dry matter: 4273 kg | |||||
| Start thrust: | 52,000 lb f (231.30 kN) |
56,000 lb f (249.10 kN) |
58,000 lb f (257.99 kN) |
60,000 lb f (266.89 kN) |
62,000 lb f (275.78 kN) |
Technical data of the PW4000-100 series "
| Model: | PW4164 | PW4164C / B | PW4168 | PW4168A | PW4170 |
|---|---|---|---|---|---|
| Fan diameter: 100 inches (2.54 m) | |||||
| Type: twin-shaft turbo engine | |||||
| Number of compressor stages: 1 fan, 5 low pressure, 11 high pressure | |||||
| Number of turbine stages: 2 high pressure, 5 low pressure | |||||
| Length: 4.143 m | |||||
| Total print ratio: 32: 1 | |||||
| Sidestream ratio: 5.1 | |||||
| Dry matter: 5661 kg | |||||
| Start thrust: | 64,500 lb f (286.91 kN) |
68,600 lb f (305.14 kN) |
68,600 lb f (305.14 kN) |
68,600 lb f (305.14 kN) |
70,000 lb f (311.37 kN) |
Technical data of the PW4000-112 series "
| Model: | PW4074 | PW4077 | PW4084 | PW4090 | PW4098 |
|---|---|---|---|---|---|
| Fan diameter: 112 inches (2.85 m) | (2.87 m) | ||||
| Type: twin-shaft turbo engine | |||||
| Number of compressor stages: 1 fan, 7 low pressure, 11 high pressure | |||||
| Number of turbine stages: 2 high pressure, 7 low pressure | |||||
| Length: 4.868 m | 4.945 m | ||||
| Overall pressure ratio: 34.2-38.6: 1 | |||||
| Sidestream ratio: 5.8 to 6.4 | |||||
| Dry matter: 6768-7140 kg | 7484 kg | ||||
| Start thrust: | 77,440 lb f | 79,960 lb f | 86,760 lb f | 91,790 lb f | 99,040 lb f |
Web links
- Manufacturer page with information
- Type certification of the PW4000-94 - EASA-TCDS-A.050 (PDF; 191 kB)
- Type certification of the PW4000-100 - EASA-TCDS-A.043 (PDF; 189 kB)
- FAA-TCDS / Type Certification of the PW4000-112 "Series (Models 4074, 4077, 4084, 4090, 4090-3, 4098 ) - PDF, English, accessed March 11, 2012
Individual evidence
- ↑ FlugRevue July 2008, p. 14
- ↑ Information on the PW4170 Advantage 70 on the manufacturer's website , PDF, English, last accessed on December 29, 2015