Turbomachine with contrarotating fans
AssigneeSnecma
InventorsMichel Brault, Jean-Claude Taillant
Life of this patent
Estimating the term…
Abstract
A turbomachine comprising: a gas generator for producing combustion gas; a turbine section through which the combustion gas passes and comprising first and second rows of contrarotating turbine rotor blades respectively driving first and second low-pressure shafts in rotation; and a fan section comprising a first row of fan blades mounted on a front fan shaft that is connected to an upstream end of the first low-pressure shaft, and a second row of fan blades axially offset from the first row and mounted on a rear fan shaft that is connected to an upstream end of the second low-pressure shaft, the front fan shaft being connected to the upstream end of the first low-pressure shaft via a removable sleeve for transmitting torque.
Claims14
A turbomachine comprising:
- a gas generator for producing combustion gas;
- a turbine section through which the combustion gas passes and comprising first and second rows of contrarotating turbine rotor blades respectively driving first and second low-pressure shafts in rotation;
- a fan section comprising a first row of fan blades mounted on a front fan shaft that is connected to an upstream end of the first low-pressure shaft, and a second row of fan blades axially offset from the first row and mounted on a rear fan shaft that is connected to an upstream end of the second low-pressure shaft;
- and
- a torque transmitting removable sleeve connecting the front fan shaft to the upstream end of the first low-pressure shaft,
- wherein said torque transmitting removable sleeve is removable in order to disassemble the first and second low-pressure shafts from the rear without having to first disassemble the fan section.
Dependencies are inferred from the claim text.