Pratt & Whitney Canada PW500
The Pratt & Whitney Canada PW500 is a family of twin-shaft turbofan engines in the thrust range from 13.3 to 20 kN, which have been developed specifically for business aircraft.
Construction
It contains compared with the PW300 a new nuclear power plant. The PW530 series contains a single-stage fan, the ( blisk ) is driven by a two-stage uncooled turbine with integral bladed rotor technology. In the high pressure system, there is a two-stage axial compressor and single stage centrifugal compressor is driven by a single-stage turbine, and an annular combustion chamber. Although similar in configuration PW535 series has an additional T- stage, which is attached to the low pressure shaft after the fan in order to increase the overall pressure ratio and the core flow rate.
The stronger PW545 series has (similar to the PW535 ) to drive an additional BR- booster stage to the larger fan ( blisk ) and a three-stage turbine. Compared with the PW300 thus reducing the fuel consumption by 10 to 15 %.
The first test run of a PW500 took place on 29 October 1993, the first flight took place in late 1993 on a Boeing 720B. The engine end of 1995 was approved (FAA April 17, 1996 ).
With the PW535E which is to be approved in 2008, a FADEC system is introduced.