초록 ▼

In a fluid flow machine comprising a compressor including a compressor diffuser and a turbine including an exhaust gas diffuser compressed air from boundary layers or vortex flows in the compressor diffuser, or leakage air from the compressor, is bled off and used as a driving medium for removing ex

In a fluid flow machine comprising a compressor including a compressor diffuser and a turbine including an exhaust gas diffuser compressed air from boundary layers or vortex flows in the compressor diffuser, or leakage air from the compressor, is bled off and used as a driving medium for removing exhaust gas from boundary layers or vortex flows in the exhaust gas diffuser. Since the pressure of the exhaust gas to be removed from the exhaust gas diffuser is below the ambient pressure a suction has to be established to remove the desired gas from the boundary layers or vortex flows. This suction is established by an ejector or a pump which is driven by the energy of the compressed air bled from the compressor regions.

대표청구항 ▼

In a turbo-machine such as a turbo-charger or a gas turbine engine having a compressor assembly including a compressor diffuser and a labyrinth seal, and a turbine assembly including an exhaust gas diffuser, the improvement comprising an energy conversion means which is operated by a working medium

In a turbo-machine such as a turbo-charger or a gas turbine engine having a compressor assembly including a compressor diffuser and a labyrinth seal, and a turbine assembly including an exhaust gas diffuser, the improvement comprising an energy conversion means which is operated by a working medium bled from said compressor and supplies energy for removing working medium by suction from a boundary layer or vortex flow in the turbine exhaust diffuser, said energy conversion means comprising a first conduit connected at one end to said labyrinth seal to bleed off gas leaking therethrough at a first pressure and connected at the other end to a pump means to feed said bled gas to said pump means to operate said pump means, and a second conduit connected at one end to the suction line of said pump means and connected at the other end to said boundary layer or vortex flow of said turbine exhaust diffuser.