Method and arrangement for providing a gas turbine, and engine-braking therefore
AssigneeVolvo Aero Corporation
InventorsBertil Jönsson, Lars Sundin
Life of this patent
Estimating the term…
Abstract
Method and arrangement for providing a gas turbine (1) having a first compressor (2), a combustion chamber (16) and a first turbine (11), the turbine being adapted to drive the compressor via a first shaft (10a, 10b). The gas turbine also has a bleed valve (12) arranged upstream of the first turbine for conducting part of a gas compressed by the compressor past it during engine braking. The invention also relates to a method for engine-braking a gas turbine.
Claims25
A land-vehicle gas turbine (1, 101, 201) comprising:
- a combustion chamber (16);
- a first turbine (11) located upstream of a first compressor (2) relative to said gas turbine, said turbine (11) being adapted to drive the compressor (2) via a first shaft (10a, 10b);
- and
- a bleed valve (12) arranged upstream of the first turbine and which conducts part of a gas compressed by the compressor past the turbine during engine-braking, said bleed valve (12) having an opening area configured to regulate the quantity of gas conducted past the first turbine (11) and which is actuated by the pressure of the gas exciting the compressor (2).
A method for engine-braking a land-vehicle gas turbine (1, 101, 201) comprising a first compressor (2), a combustion chamber (16) and a first turbine (11), the turbine being adapted to drive the compressor via a first shaft (10a, 10b), wherein part of the gas compressed by the compressor (2) is conducted past the first turbine (11) utilizing a bleed valve (12) arranged upstream of said first turbine (11) relative to the gas turbine during engine-braking, and wherein the quantity of gas conducted past the first turbine (11) being actuated by the pressure in the gas from the compressor (2).
A vehicle comprising a land-vehicle gas turbine for providing propulsion to the vehicle, said gas turbine comprising:
- a combustion chamber (16);
- a first turbine (11) located upstream of a first compressor (2) relative to said gas turbine, said turbine (11) being adapted to drive the compressor (2) via a first shaft (10a, 10b);
- and
- a bleed valve (12) arranged upstream of the first turbine and which conducts part of a gas compressed by the compressor past the turbine during engine-braking, said bleed valve (12) having an opening area configured to regulate the quantity of gas conducted past the first turbine (11) and which is actuated by the pressure of the gas exiting the compressor (2).
Dependencies are inferred from the claim text.